2021 Gmc Sierra 1500 problems
The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name (not to be confused with the 2003 concept). Competing against the Ford F-Series, Ram Pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year.
History
The Silverado nameplate made its debut for the 1975 model year, becoming the top trim level on all Chevrolet C/K trucks, slotted above Custom Deluxe, Scottsdale, and Cheyenne. For the 1968 model year (seven years before the Silverado), GMC C/K trucks used variations of the Sierra name (Sierra, Sierra Classic, Sierra Grande, and High Sierra). Even after the C/K series officially ended, GM still uses the CK and the CC in their current model codes, to denote a two-wheel drive (CC), and four-wheel drive (CK).
For the 1988 GMT400 model architecture, Chevrolet retained the C/K model nomenclature, with GMC branding its full-size line as Sierras. While sharing the same body and chassis, the model chronology of the Silverado and Sierra are different, with five generations of the Sierra, while four of the Silverado.
In 2018, at the NTEA Work Truck Show in Indianapolis, Indiana, Chevrolet unveiled the first medium-duty Silverado, expanding the model line to a 4500HD, 5500HD, and 6500HD chassis cab. Largely the successor to the 2003–2009 GMT560 chassis, the medium-duty trucks are exclusive to Chevrolet, with no plans for an equivalent GMC version. Instead, Navistar International (now partnering with GM) would sell the medium-duty trucks as a rebadged counterpart, called the CV. This is in fact a very similar nod to how the Avalanche did not have a GMC Yukon–based equivalent, but instead, Cadillac would take its place as the former's rebadged counterpart, the Escalade EXT.
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Common 2021 Gmc Sierra 1500 problems
The 2021 GMC Sierra 1500 has been reported to have several common problems by its owners. One of the most widespread issues is creaking noises from the steering system, which is often caused by problems with the main steering gear box. This issue has been reported to occur within the first 5,000 miles of ownership, and some owners have had the steering assembly replaced under warranty, while others have had it fixed by having the steering system realigned.
Another problem that has been reported is a frozen stereo system, which has been found on some Sierra 1500 models in the first 1,500 miles. This issue can be resolved by installing software updates, which are available for the stereo system and can improve its reliability. Most dealerships will install these updates for free, while some charge around $50 to install the latest software.
Lifter failures in the engine are a rare, but serious issue found on some 2021 GMC Sierra 1500 series models at around 4,500 miles. The problems were only reported on the 5.3L V8. The only solution is to replace the damaged lifters, which is usually covered by the warranty. If the truck is out of warranty, new lifters can cost over $2,000 to install.
There are four recalls on the 2021 GMC Sierra 1500 series, which is similar to other full-size trucks. The most serious recall covers seat belts which may not be secured properly. GMC will re-install the belts on affected models for free. Other recalls cover tires which may not be properly cured.
In addition to these issues, some owners have reported low gas mileage, coolant loss, and problems with the 8-speed automatic transmission, fuel pump, and body sensor. These issues have been reported to occur at varying mileages and can result in costly repairs.
Overall, the 2021 GMC Sierra 1500 has several common problems that can affect its reliability and performance. While some of these issues can be resolved with software updates or warranty repairs, others can result in costly repairs and may impact the truck's longevity.
Do 2021 GMC Sierras have transmission problems?
Still, over the years, especially with later models from 2014 to 2021, most owners, especially those with automatic transmissions, have complained about GMC Sierra's transmission. They claim that the transmission started misbehaving before the car reached 100000 miles.
Are there any recalls on 2021 GMC Sierra?
Summary: General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire.
What is the problem with the 2021 GMC Sierra 1500 diesel?
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
What is the most common problem with GMC?
Nearly every GMC model experiences issues with its HVAC system. The air conditioning condenser on the 2015 Sierra 1500 is known to fail. It seems the Envoy is the only model that escapes this issue.
Are there any recalls on 2021 GMC Sierra?
Summary: General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire.
What is the most common problem with GMC?
Nearly every GMC model experiences issues with its HVAC system. The air conditioning condenser on the 2015 Sierra 1500 is known to fail. It seems the Envoy is the only model that escapes this issue.
Is GMC Sierra 1500 reliable?
Yes, GMC trucks are among the most reliable pickups on the market. Year after year, the J.D. Power Dependability Study has ranked the Sierra 1500 and Sierra 2500HD in the top five of their respective segments.
How long do GMC Sierra 1500 engines last?
If you take care of your GMC Sierra, you can expect it to last around 250,000 miles without too many worries.
2021 Gmc Sierra 1500 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Gmc Sierra 1500 problems, we found that the most common problems with these 2023 model year vehicles are:
- Engine problems
- Electrical system problems
- Steering problems
- Service brakes problems
- Unknown or other problems
The graph below shows statistics for all 2021 Gmc Sierra 1500 vehicle components and the number of complaints received.
Latest 25 complaints 2021 Gmc Sierra 1500
The NHTSA has received 131 complaints about various vehicle components related to the 2021 Gmc Sierra 1500. Below are the 25 most recent complaints reported for 2021 Gmc Sierra 1500 vehicles.
ENGINE PROBLEM
- Date Of Incident: 2024-10-11
- VIN: 1GTP9EEL7MZ
- Components: ENGINE
- Summary: On memorial day weekend 2023 my truck ,2021 GMC Sierra AT4 was making a awful noise. I pulled over and vehicle died. had it towed and the warranty covered new engine replacement at 54678 miles(large deposit of metal in the oil pan). June of 2024 again, traveling out of town and pickup making terrible noise and shaking at 76651 miles. Replaced lifters in vehicle. October 11, 2024 took vehicle in for oil change, drove 25 miles and vehicle making terrible noise. Pulled over and pickup died. Had it towed to dealer and they are saying it needs a new engine. ( 87000 miles) they are saying its out of warranty. There seems to be a serious problem with this engine( 6.2) in all the research I am finding. I now have a pickup that I am still making payments on , that I cannot drive.
ENGINE PROBLEM
- Date Of Incident: 2024-09-27
- VIN: 3GTP9EEL4MG
- Components: ENGINE
- Summary: The contact owns a 2021 GMC Sierra 1500. The contact stated while driving 45 MPH, there was an abnormal ticking sound coming from the vehicle. The contact stated that several unknown warning lights were illuminated. The vehicle was placed on a trailer and was taken to an independent mechanic who stated that the lifter and cam shaft needed to be replaced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 133,000.
STEERING PROBLEM
- Date Of Incident: 2024-09-27
- VIN: 3GTU9CED6MG
- Components: STEERING
- Summary: Getting shift to park safety warning, car is in park, and cannot move at all, Cannot start because vehicle does not believe it is in park. Have been stranded multiple times on this error.
ELECTRICAL SYSTEM,UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2024-09-28
- VIN: 1GTU9CET2MZ
- Components: ELECTRICAL SYSTEM,UNKNOWN OR OTHER
- Summary: My vehicle was issued an OTA ( over the air update ) automatically, and the update failed, leaving the screen in my vehicle inoperable, with a message displayed stating " Update failed return to dealer" My vehicles radio/information system is now inoperable. The blue-tooth calling capability is also inoperable. This is a safety issue due to the fact that I am a resident of Minnesota and we have a law that states it is illegal to use your phone while driving. In addition, I am unable to receive severe weather alerts via the radio and do not have the ability to make phone calls in my vehicle in the event of an emergency since it is illegal to use my phone in MN while driving. This is a serious safety hazard The GMC dealer (Mills GMC in Baxter, MN ) that the vehicle is currently at has stated this is not a warrantable repair, even though my vehicle is under warranty. I have also contacted GM service directly and was told they would be willing to offer me "rewards points" There is an active recall for the same issue for other GM models of the same year. Recall # N202319250 Essentially, GM is pushing updates to vehicles without the owners consent, giving the owner no choice but to bring the vehicle to the dealership for a repair which they are calling "wear and tear" This is highly unethical and is making customers vehicles unsafe.
ENGINE PROBLEM
- Date Of Incident: 2024-09-23
- VIN: 3GTU9DELXMG
- Components: ENGINE
- Summary: Per the dealership: Lifter failure, crankshaft failure, metal shavings in the oil. Complete engine failure.
ENGINE PROBLEM
- Date Of Incident: 2024-09-03
- VIN: 3GTU9DEL4MG
- Components: ENGINE
- Summary: The contact's husband owns a 2021 GMC Sierra 1500. The contact stated that while her husband was driving 80 MPH, the vehicle stalled. Additionally, the "Shift to Neutral and Restart" message blinked. The vehicle was steered to the side of the road where the vehicle failed to restart. The vehicle was towed to an independent mechanic where the failure was not able to be replicated. The vehicle was then towed to the dealer where it was suspected that the crankshaft bearing had seized, putting pressure on the starter, causing a short. The contact was informed that the engine needed to be taken apart for a proper diagnostic test. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 81,000.
POWER TRAIN PROBLEM
- Date Of Incident: 2024-08-04
- VIN: 1GTP9EEL3MZ
- Components: POWER TRAIN
- Summary: The contact owns a 2021 GMC Sierra 1500. The contact stated while driving at various speeds, there was a whining sound coming from the transmission. The vehicle was taken to the local dealer who diagnosed and determined that the transmission was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under the Extended Warranty for the failure. The failure mileage was 86,000.
STRUCTURE PROBLEM
- Date Of Incident: 2024-05-31
- VIN: 1GTR8CEK9MZ
- Components: STRUCTURE
- Summary: The contact owned a 2021 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the vehicle was shaking erratically, and the vehicle lost motive power. In addition, the contact stated that an unknown warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed with a fractured front-end frame. The contact was informed that the front-end frame needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.
ENGINE PROBLEM
- Date Of Incident: 2024-08-13
- VIN: 3GTP9EEL8MG
- Components: ENGINE
- Summary: The engine locked up on the truck due to bad lifters. It has the 6.2L engine and after talking to several mechanic shops and research online this is a very common issue. GM is having to put lots of new engine in under warranty due to this issue. They need to have a recall to fix a known issue that is costing people thousands of dollars to replace the whole engine in the truck. We was driving down the hey today and with no working at all the truck died and and would not crank back over. We had the truck towed to a repair shop to find out that our truck had the same issue that lots of people are having and now it’s gonna cost us several thousand dollars to have fixed when realistically GM should be paying to fix this problem.
ENGINE PROBLEM
- Date Of Incident: 2024-05-06
- VIN: 3GTU9BED6MG
- Components: ENGINE
- Summary: On the evening of 5/6/24, my husband was driving home in our 2021 GMC Sierra 1500 when the truck started to run hard, shaking, and the check engine light came on and was blinking. He pulled onto the side of the road immediately and more messages were coming across the dashboard. The truck was towed to a dealership that same night. Once the dealership assessed what was wrong, we were advised by the dealership who confirmed the lifters failed. The truck is currently still sitting at the dealership as we're waiting for the parts because we've been told multiple times that the parts are on backorder. I understand the truck is available for inspection as its been sitting on the lot since 5/6/24. This is the first time this has happened to the truck, zero prior issues. The truck has great service records and has always been properly maintained. We are currently still under the manufacturer warranty. To date, the dealership is still in possession of the truck for 90 days, and we still do not have any ETA on when the parts will arrive/truck will be fixed.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2024-07-10
- VIN: 3GTU9DEDXMG
- Components: ELECTRICAL SYSTEM
- Summary: Radio screen will go blank randomly after turning the truck off the I can here the radio but can not see any screen. After turning the radio of an exiting the truck radio still plays all of the sudden the radio will go off and restarting the truck radio is working again .At any random time the radio will go blank again
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-07-17
- VIN: 3GTU9FET2MG
- Components: SERVICE BRAKES
- Summary: While towing a trailer in tow/haul mode on the highway traveling around 60mph, their was a strong downshift clunking sound. About 10 miles later, it happened again, except this time the brakes logged up and truck skid for about a full second and then trailer began fishtailing slightly. Check engine like P2C7A came on. Seems like brakes or transmission momentarily locked up.
LATCHES/LOCKS/LINKAGES PROBLEM
- Date Of Incident: 2024-07-05
- VIN: 1GTR9BED7MZ
- Components: LATCHES/LOCKS/LINKAGES
- Summary: The contact owns a 2021 GMC Sierra 1500. The contact stated while the vehicle was parked and turned off, the electronic rear tailgate door erroneously unlatched and opened. The contact stated that the failure had occurred on several occasions. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure. The failure mileage was 58,000.
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2024-02-09
- VIN: 3GTU9FEL4MG
- Components: UNKNOWN OR OTHER
- Summary: The transmission/torque converter is causing (bucking, kicking, jerking, slipping, difficulty when taking off, shuddering during driving, fishbite, and chuggle). Its becoming a safety hazard now because its putting me and others at risk for an accident. The vehicle will hesitate to go in which if traffic may be rear ended by another vehicle. During weather/rain the vehicle will lose traction and the rear wheels will spin causing an accident. Problem has been reported to dealership multiple times and the only solution they can provide is keep driving the vehicle. Vehicle has no warning lights at all or any other symptoms of problems prior to when the components started to fail. The issue first happened around February 2024 and remains to be an issue to this present day. I've been the dealership more than 6 times with no solution/fix. I'm concerned for my safety now and need this issue addressed ASAP.
STRUCTURE,LATCHES/LOCKS/LINKAGES PROBLEM
- Date Of Incident: 2024-04-20
- VIN: 3GTU9DED2MG
- Components: STRUCTURE,LATCHES/LOCKS/LINKAGES
- Summary: The contact owns a 2021 GMC Sierra 1500. The contact stated that the inner tailgate door failed to open while pressing the release button. On several occasions while pressing the release button, the inner door would lower down. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was provided. The failure mileage was 45,000.
UNKNOWN OR OTHER,ENGINE PROBLEM
- Date Of Incident: 2024-06-14
- Fire: 1
- VIN: 1GTR9CEK4MZ
- Components: UNKNOWN OR OTHER,ENGINE
- Summary: On [XXX] at approximately 3 pm I left my house and was traveling on [XXX] in Fort Mohave Arizona I was only traveling 7 miles. When I looked at the temperature in the cab was 121 degrees a few moments after the display system went black and never turned back on. I arrived at the store 4 minutes after the display shut off with no warning lights or any type of notification on my phone, I had rolled down the windows to get air in the cab to see if that would help cool down if needed. I was in the store 20 minutes. I returned to the truck turned it on and everything was normal, from there I drove back home nothing happened on my drive back the display was working. At 8 30pm I was traveling on [XXX] Driving towards a casino called Avi. I had the driver's side window halfway down when I smelled a faint plastic burn thinking it was coming from the outside because I had the window halfway down. That is when the cab of the GMC filled up with smoke that came in thru the air vents and flames started to show coming from the defrost vents and under the hood while I was driving. I had to stick my head out of the window to see where I could pull over without starting a huge brush fire. As I pulled over and the truck within seconds fully ignited into flames. Enough time to grab my belongings that I was able to save. My life was at risk by this vehicle igniting while I was driving. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2024-06-09
- VIN: 1GTP9EED1MZ
- Components: ELECTRICAL SYSTEM
- Summary: The inner tailgate continually releases the upper tailgate, which then opens when the vehicle is driven. When latched, the tailgate immediately opens again. This is reproducible. I gather the switch is shorted closed, leading to the release of the tailgate. This poses a risk to items in the bed of the truck leaving the vehicle unexpectedly while in motion. The truck has not been to the dealer yet, there has been no inspection of the vehicle by any authority. The vehicle displays a warning “inner tailgate open.”
ENGINE PROBLEM
- Date Of Incident: 2024-05-24
- VIN: 3GTP9EED2MG
- Components: ENGINE
- Summary: The contact owns a 2021 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as needed and made an abnormal sound. The contact assumed that the sound was coming from the transmission and the vehicle was taken to a dealer. The dealer diagnosed the vehicle and suggested that the failure might be a pulley or a rod bearing failure. The contact took the vehicle to another dealer who confirmed a rod bearing failure. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 46,000.
LANE DEPARTURE,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE PROBLEM
- Date Of Incident: 2024-05-30
- VIN: 1GTU9DED9MZ
- Components: LANE DEPARTURE,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE
- Summary: I am writing to complain about that General Motors has issued a retrofit program for 2022 model vehicles that did not come with safety features due to the microchip shortage. I purchased my vehicle new in 2021 and the vehicle did not have the option of having safety features at the time of purchase. I find not having the safety features in a large vehicle to be a safety concern for those that use the vehicle or around the vehicle. General Motors should add the 2021 model vehicles that also did not have the ability to have those features on them added as a part of their retrofit program.
VISIBILITY/WIPER PROBLEM
- Date Of Incident: 2024-05-25
- VIN: 1GTU9DED9MZ
- Components: VISIBILITY/WIPER
- Summary: The wiper blade motor is defective. While driving during a storm the wiper blade motor stopped working on the delayed and low settings. This was a safety issue while driving. I took my vehicle to get looked at a GM Dealer to look at the vehicle. My vehicle is only 3 years old and should not have issues with the wiper blade motor.
STEERING PROBLEM
- Date Of Incident: 2024-05-01
- VIN: 1GTP8DEDXMZ
- Components: STEERING
- Summary: I just purchased a used 2021 GMC Sierra after having for a month the SERVICE POWER STEERING came on, I took it in for service and was told the part is on back order. Not to worried if the dealership and GM sold it to me that way. I am going to drive it and hope and pray that nothing bad happens. And if it does i will be getting a Lawyer.
SUSPENSION PROBLEM
- Date Of Incident: 2024-05-24
- VIN: 1GTU9DEL2MZ
- Components: SUSPENSION
- Summary: The contact owns a 2021 GMC Sierra 1500. The contact stated while driving 40 MPH, the front driver's side wheel separated and fell underneath the front end of the vehicle, causing the vehicle to veer towards oncoming traffic. The contact was able to pull to the side of the road, where the vehicle was awaiting to be towed. The contact related the failure to NHTSA Campaign Number: 21V718000 (Suspension); however, the VIN was not included. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 37,470.
ENGINE PROBLEM
- Date Of Incident: 2023-10-30
- VIN: 3GTU9CET1MG
- Components: ENGINE
- Summary: The coolant control valve is faulty and needs to be replaced. GMC and the dealership know about the issue (Bulletin No. PIP5791), but are not fixing it in a timely manner. This is a safety concern as the system will automatically reduce engine power, which is a major concern when towing and/or in mountainous terrain.
ELECTRICAL SYSTEM,ENGINE PROBLEM
- Date Of Incident: 2024-05-04
- VIN: 1GTU9DET3MZ
- Components: ELECTRICAL SYSTEM,ENGINE
- Summary: The component that has failed is the engine coolant flow control valve AC Delco part number 55516369. Unfortunately the part is still installed on the vehicle. It has been taken to a dealer and this is a known issue but no recall has been issued. The check engine comes on sometimes but not always, sometimes the pickup has plenty of power to drive and sometime it will barely pull itself, all in the same trip without shutting the ignition off. The symptoms first started in December of 2023, but were sporadic, now it is nearly everytime the pickup is started. It is extremely dangerous to drive this vehicle when it has a problem. You cannot tell if it will accelerate normally or is you will push the pedal and it does nothing. The part to repair the problem is on backorder and no release date is yet available. We have been waiting for 3 months and still no word on when this will be repaired.
ELECTRICAL SYSTEM,SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-02-04
- Fire: 1
- VIN: 3GTU9DET5MG
- Components: ELECTRICAL SYSTEM,SERVICE BRAKES
- Summary: My truck had smoke rolling out at work when I noticed it. Tried to put it out it Burnt my hands ! destroyed the inside I had it towed and insurance investigator said it was do to a brake controller for the trailer. And I took it to get estimate and the service dept said it was do To brake controller my truck was totaled my wallet toast my coat was toast my I phone my deposit my truck i drove daily to work out of and personal. General Motors would not help I called the. First. Then I was frustrated called my insurance they started a claim and low balled me now I lost 2 months of work bills stacked and low ball price on what the offer was) and haven’t gotten one yet. Called gm back they said I had an active claim they woundenr help it’s there defect I lost my job my mind etc on this. Two investigators state the same thing even there service dept. A gm service dept said the same thing. No warning indicators at al I will never buy another truck. The safety issue is people driving around not knowing. The 2500 and 3500 have them. Looked it up the plant that made my truck left the parts for manufacturing outdoors they got wet. It’s on the internet people r gionbg to get hurt. Lucky I was outside when my was on fire. Please help on the matter. Thank u
2021 Gmc Sierra 1500 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 4 recalls for different components of the 2021 Gmc Sierra 1500.
- Manufacturer: General Motors, LLC
- Components: TIRES:TEMPORARY/EMERGENCY SPARE TIRE
- Summary: General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.
- Consequence: An ABS system that does not function properly can increase the risk of a crash.
- Remedy: Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.
- Manufacturer: General Motors, LLC
- Components: SEAT BELTS
- Summary: General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.
- Consequence: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.
- Remedy: GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202322230.
- Manufacturer: General Motors, LLC
- Components: SEAT BELTS
- Summary: General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
- Consequence: If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
- Remedy: GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
- Manufacturer: General Motors LLC
- Components: TIRES
- Summary: General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.
- Consequence: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.
- Remedy: GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.
Negative 2021 Gmc Sierra 1500 car reviews
Positive 2021 Gmc Sierra 1500 car reviews
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The GMC six cylinder diesel is a smooth, fuel-efficient vehicle that's great for towing. However, with diesel prices currently $1.00 to $1.25 more expensive than regular gasoline, it's definitely taking a toll on my wallet.
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The GMC Sierra 1500 is such a pleasure to ride! During my recent 200-mile interstate trip, I was able to get an impressive 22 mpg.
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Congratulations on your new truck! It's great to hear that you're enjoying it so much. The style both inside and out is fantastic, and it's wonderful to hear that it rides so well. It's great that you're able to use it for camping trips too! While some people may focus on the lack of a large screen, it's clear that you appreciate the luxurious feel and functionality of the truck. The cooled seats sound like a real bonus, especially in Arizona! Thanks for sharing your positive experience with us.
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I purchased my AT4 used with 17,000 miles from CarMax in July 2022 and I have had no problems whatsoever with this truck! It is awesome and fun to drive. I just took it in for its first service of my ownership and it is in perfect condition. Only needed a simple oil change. My kudos to GMC and General Motors.
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I'm glad to hear that you love it!
Additional sources
More sources of information about 2021 Gmc Sierra 1500 problems:
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Other years of Gmc Sierra 1500
Are you having problems with your 2021 Gmc Sierra 1500?
Efrain Grimes 2024-11-22
Hey there! I heard that 14k Mike's car is having some transmission issues when it's cold. The dealership suggested letting it warm up before driving. Just wanted to pass that along!
Kayley Klocko 2024-10-21
I have a 2021 GMC Sierra 1500 Elevation with the 3.0 Duramax. Unfortunately, I have been experiencing some issues with the relay between the engine and transmission. Every time I try to speed up, it throws a code stating low oil pressure and another about timing. Although I have taken it to get looked at, the issue cannot be found and a full diagnostic would take 3-6 months for a diesel mechanic to get to. However, the warranty is still in effect. I understand that this can be frustrating, but I am hopeful that the issue will be resolved soon. I have spoken to several people with the same truck and they have had similar issues, but not as frequently as myself. I would advise caution when considering the 3.0 Duramax. Thank you for your understanding.
Hollis Rau 2024-07-29
I had an issue with my truck where 63500 number 6 lifters failed on the right bank. Fortunately, I had an extended warranty that covered the $3600.00 bill. Unfortunately, two weeks later, the left bank lifters also failed. I'm hoping that my extended warranty will cover this too. It's frustrating to know that GM has been aware of these issues for a while now. To make matters worse, one week later, the right bank lifter went out again. After waiting a week to get my truck back the first time, it's now back in the shop and has been there for a week already. It seems like GM is not taking responsibility for these issues, and there is only a service bulletin but no recall. I hope they take action soon to prevent this from happening to other truck owners.
Skye Ryan 2024-06-19
I visited several dealerships in search of my desired vehicle. Unfortunately, one of the dealerships did not allow me to test drive the car and insisted that I either take it or leave it. Although the other dealerships were friendly, they did not have the specific car I was looking for. On a different note, the recent chip shortage highlights the importance of producing at least 50% of our items domestically. However, it may not be the best time to purchase a vehicle as discounts are hard to come by.
Cristobal Bernier 2024-05-18
I replaced all the brakes at 30K and noticed that the inside brake pad was worn 90% all the way around, while the outside pad was only worn 10%. Despite this, GMC considers this to be normal wear and will not cover seized calipers. However, I stand by my decision to purchase the Sierra AT4 and enjoy driving it.