2018 Gmc Sierra 3500 problems

Overview of popular issues
Analysis of common problems
Сomplaints list
Recalls list

Social links

Common 2018 Gmc Sierra 3500 problems

The GMC Sierra 3500, a heavy-duty pickup truck, has been subject to several recalls and complaints from owners, which are detailed below.

Incomplete Tire Rim Designation on Certification Tire Label: The 2018 GMC Sierra 3500 was also recalled due to an incomplete tire rim designation on the certification tire label located on the driver's door edge. This issue does not comply with Federal Motor Vehicle Safety Standard No. 110, "Tire Selection and Rims." The remedy for this issue involves dealers mailing the corrected label to consumers or installing the label for them.

Front Seat Belt Retractor Assemblies with Incorrect Torsion Bar: The 2017-2018 GMC Sierra 3500 was recalled due to front seat belt retractor assemblies built with the incorrect torsion bar. This issue causes the vehicles to fail to comply with Federal Motor Vehicle Safety Standard number 209, "Seat Belt Assemblies." The remedy for this issue involves replacing both front seat belt retractor assemblies, free of charge.

Fuel-Level Sensor in the Front Tank May Stick in a Low-Level Position: The 2016-2018 GMC Sierra 3500 equipped with gasoline engines and dual fuel tanks was recalled due to a fuel-level sensor in the front tank that may stick in a low-level position. This issue allows the rear tank to overfill the front tank, which could lead to a fuel leak. The remedy for this issue involves replacing the rear-tank fuel-pump module, inspecting the front tank, and replacing it if necessary, free of charge.

Speedometer Issues: One of the most common problems with the GMC Sierra, especially the 2005 model, is that some vehicles seem to have problems with the Speedometer. This is an electrical and wiring issue, but it can be relatively hard to spot. The most common version of this problem isn't that the speedometer stops working entirely; it's that the speedometer stops giving an accurate reading. This can be a bit issue because it might lead to speeding tickets or loss of control during turns.

Miscellaneous Electrical Issues: Other issues, like dash gauges not working, interior lights giving out, or the vehicle randomly locking or unlocking, are also relatively common problems for the GMC Sierra.

Heating System Issues: The GMC Sierra also seems to have some problems with the heating system, where the heater might turn on randomly, even in the middle of summer.

Engine Knock: Engine knocks are a more serious problem, as most car people will know. Unfortunately, internal engine knocks can also be incredibly difficult to diagnose, and even getting a diagnosis can be expensive, much less getting an actual repair.

These issues are some of the most common reasons consumers aren't 100% satisfied with their Sierra. The first three problems are relatively common, while the last is a more serious issue but also much rarer.

What is a common problem with 2018 GMC Sierra?

Transmission Issues — Hard Shifts; Hesitation, Surging; Shuddering. Electrical Problems: “Loss of dash electrical system and service stabillitrac warning came on when power was restored along with service suspension warning light.

Are there any recalls on 2018 GMC Sierras?

Summary: General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive.

Is Sierra 3500 reliable?

GMC Sierra 3500 Reliability Problems. Sierra 3500 owners have made 25 complaints over 29 model years. Using our PainRank™ system we've ranked it 1st in overall reliability out of 15 GMC models , with real lights and brakes concerns.

How many miles per gallon does a 2018 Sierra 3500 get?

The truck has a 6.0 V8 but even with that, it has no power under load. The vehicle gets an average 8 MPG on a good day driving downhill. If you tow with it, you'll be lucky to get 5 MPG.

What is a common problem with 2018 GMC Sierra?

Is Sierra 3500 reliable?

Are there any recalls on 2018 GMC Sierras?

What is the fuel economy of a Sierra 3500?

Based on data from 36 vehicles, 2,639 fuel-ups and 883,667 miles of driving, the 2021 GMC Sierra 3500 HD gets a combined Avg MPG of 13.83 with a 0.16 MPG margin of error.

2018 Gmc Sierra 3500 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Gmc Sierra 3500 problems, we found that the most common problems with these 2023 model year vehicles are:

Service brakes problems
Steering problems
Exterior lighting problems
Electrical system problems
Visibility problems

The graph below shows statistics for all 2018 Gmc Sierra 3500 vehicle components and the number of complaints received.

2018 Gmc Sierra 3500 complaints

The NHTSA has received 12 complaints about various vehicle components related to the 2018 Gmc Sierra 3500.

2024-07-29

ELECTRICAL SYSTEM PROBLEM

Date Of Incident: 2024-07-26
VIN: 1GT42YEY8JF
Components: ELECTRICAL SYSTEM
Summary: The contact owns a 2018 GMC Sierra 3500. The contact stated while driving at various speeds, several unknown warning lights illuminated on the instrument panel. The contact pulled over to the shoulder of the roadway to restart the vehicle. After the vehicle was restarted, the vehicle hesitated to stop while depressing the brake pedal. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 53,800.

Add Complaint

2024-02-14

VISIBILITY PROBLEM

Date Of Incident: 2024-02-14
VIN: 1GT42YEY5JF
Components: VISIBILITY
Summary: The contact owns 2018 GMC Sierra 3500. The contacted stated that while the vehicle was parked in the driveway, the vehicle started and the defrost system was activated and the contact's daughter entered the vehicle and saw that it was smoking and informed the contact. When the contact arrived at the vehicle, the rear window had shattered. No warning light was illuminated. The vehicle was not taken to the dealer and was not repaired. The contact referenced GMC Customer Satisfaction Program Number: N192220470 (Faulty Rear Defrost Circuit) as a possible solution however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The approximate failure mileage was 70,000.

Add Complaint

2023-02-03

VISIBILITY/WIPER PROBLEM

Date Of Incident: 2023-01-17
VIN: 1GT42YEY0JF
Components: VISIBILITY/WIPER
Summary: 17Jan2023. 2018 GMC Sierra 3500HD Denali. Northbound on I37 near Three Rivers, TX. Speed approx 75 mph. Temp approx 55F. Wx conditions, 1/2 mile vis in fog. Traffic, zero vehicles ahead, one vehicle approx 100 yards behind. Time approx 0815. No overpasses encountered. Cruise control engaged. My son and I were talking when we both heard a sound us above resembling ripping cloth lasting approx 1/2 second immediately followed by a loud explosion followed by the sound of fragmented clinking. The rush of wind noise followed as we could hear pieces of glass continue be taken by the slipstream. I was able to immediately deduce that the sunroof had catastrophically failed. I never use the sunroof or even open the slider so luckily it was closed as usual and no glass fell into the cab and no injuries were sustained. My son and I began to look around us while continuing down the highway to see if an object could've caused this. With no vehicles in a position to have flung a rock or other material and no overpasses in the area, we concluded it must've been a defect. I took the next exit and stopped in a gas station parking lot. We exited the truck and visually inspected the roof. The glass was indeed shattered. Further, the glass had appeared to failed outward as the remaining glass was directed away from the cab. There had been no prior indications of impending failure. There were no warning lights and the police were not called. Had a vehicle been close behind the outcome may have been worse as it would've been showered with debris. The vehicle is under warranty but GM has declined coverage, claiming it must've been a rock or something, even though that would've been impossible given the circumstances.

Add Complaint

2022-07-05

SERVICE BRAKES PROBLEM

Date Of Incident: 2022-07-05
VIN: 1GT42YEY7JF
Components: SERVICE BRAKES
Summary: A persistent, very distracting alert saying "service trailer brakes"

Add Complaint

2022-03-28

SERVICE BRAKES PROBLEM

Date Of Incident: 2018-03-28
VIN: 1GT42YEY4JF
Components: SERVICE BRAKES
Summary: The contact owns a 2018 GMC Sierra 3500. The contact stated after driving on a long downhill road at an undisclosed speed with his 2017 Highland Ridge 349 RV hooked to the vehicle, as he was reaching a leveling point and depressing the brake pedal to slow the vehicle, the brakes failed to operate as needed. The contact stated that as he depressed the brake pedal further, the brake pedal overheated and would no longer respond properly. The contact stated that the vehicle was rated at 22,000-23,000 while the trailer was 14,300 pounds loaded maximum. The contact stated that the trailer currently weighed 11,000 pounds. There were no warning lights illuminated. The contact stated that the failure had been reoccurring while driving. The vehicle was taken to the dealer who informed the contact that the braking system was operating properly. The manufacturer was not notified of the failure. The failure mileage was unknown.

Add Complaint

2020-04-15

SERVICE BRAKES PROBLEM

Date Of Incident: 2020-04-09
VIN: 1GT42YEY7JF
Components: SERVICE BRAKES
Summary: APRIL 9TH 2020 I WAS OPERATING MY VEHICLE A 2018 GMC SIERRA 3500 DENALI EQUIPPED WITH THE DIESEL PACKAGE. I WAS TOWING A BOBCAT SKID STEER ON A TRAILER WITH A TOTAL WEIGHT OF APPROXIMATELY 4300LBS. I WAS TRAVELING AT ABOUT 45 MPH WHEN I ENCOUNTERED A RED LIGHT. WITH PLENTY OF ROOM TO STOP I APPLIED THE BRAKES AS NORMAL. THEY INITAILLAY GRABBED AND SLOW MY TRAVEL TO ABOUT 40 MPH. THEN OUT OF WHAT SEEMED NOWHERE THE BRAKE PEDAL RAPIDLY WENT TO THE FLOOR AND THE VEHICLE FREEWHEELED THROUGH THE LIGHT. I ATTEMPTED MULTIPLE TIMES TO EASE OFF THE PEDAL AND REAPPLY TO NO AVAIL. UPON ENTERING THE INTERSECTION I NEARLY CRASHED INTO A VEHICLE. WHEN I NEARLY I MEAN WITH INCHES. I IMMEDIATELY SLAMMED THE E-BRAKE BRINGING THE TRUCK TO A SKIDDDING HALT. AFTER DROPPING THE TRAILER OFF IN AN EMPTY PARKING LOT MY VEHICLE WENT TO MY LOCAL DEALER. THE SERVICE ADVISER WHO 1ST ENCOUNTERED THE VEHICLE EXPERIENCED THE ISSUE 1ST HAND.AFTER HAVING IT FOR NEARLY A WEEK THEY CALLED TODAY TO SAY 'THEY CAN'T FIND THE ANY ISSUES'. THAT MAKES THIS SITUATION EVEN MORE DANGEROUS. YOU'RE UNAWARE WHEN THIS CAN HAPPEN. THESE VEHICLES NEED TO HAVE A NEW RECALL IMMEDIATELY

Add Complaint

2019-11-20

STEERING,POWER TRAIN,SERVICE BRAKES PROBLEM

Date Of Incident: 2019-11-02
VIN: 1GT42XEY8JF
Components: STEERING,POWER TRAIN,SERVICE BRAKES
Summary: I WAS DRIVING UP HILL THE TRUCK LOST POWER DIED/SHUTDOWN SO I HAD NO POWER STEERING NO POWER BRAKES WE LIVE ON A COUNTRY RURAL ROAD. HAD THE TRUCK TOWED TO KENDALL CHEVROLET IN EUGENE OREGON WHERE IT HAS BEEN SINCE NOVEMBER 2 WITH ELECTRICAL ISSUES THAT THEY ARE TRYING TO PINPOINT.

Add Complaint

2019-11-08

STEERING,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES PROBLEM

Date Of Incident: 2018-05-09
VIN: 1GT42YEY6JF
Components: STEERING,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
Summary: TL* THE CONTACT OWNS A 2018 GMC SIERRA 3500. WHILE DRIVING APPROXIMATELY 60 MPH AND HAULING A TRAILER, THE ABS, SERVICE TRAILER BRAKE, SERVICE POWER STEERING, AND SERVICE STABILITRAK WARNING INDICATORS ILLUMINATED. ALSO, THE VEHICLE LOST BRAKING FUNCTIONALITY. THE CONTACT ALSO STATED THAT THE FAILURE OCCURRED WHILE NOT TOWING A TRAILER. THE VEHICLE WAS TAKEN TO BUSTER MILES CHEVROLET (1884 ALMON ST, HEFLIN, AL 36264, (256) 781-4536) TO BE DIAGNOSED, BUT THE MECHANIC WAS UNABLE TO RETRIEVE A FAULT CODE. THE CONTACT WAS INFORMED THAT THE FAILURE MAY BE DUE TO A WHEEL SPEED SENSOR. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 16,068.

Add Complaint

2019-10-02

ENGINE PROBLEM

Date Of Incident: 2018-04-02
VIN: 1GT42XCY3JF
Components: ENGINE
Summary: TL* THE CONTACT OWNS A 2018 GMC SIERRA 3500. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V328000 (ENGINE). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. ROYAL MOORE BUICK GMC (1380 SE RIVER RD, HILLSBORO, OR 97123, (503) 648-1153) WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS ALSO CONTACTED AND MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

Add Complaint

2019-02-06

EXTERIOR LIGHTING PROBLEM

Date Of Incident: 2018-10-17
VIN: 1GT42WCG5JF
Components: EXTERIOR LIGHTING
Summary: SHAKING OR FLICKERING, HEADLIGHTS WHEN DRIVEN ON ROUGH ROAD SURFACES FLICKER OR SHAKE LIKE BLINKING YOU'RE EYES REAL FAST VERY DISTRACTING FOR MYSELF AND OTHER DRIVERS W.S.P. SAID IT IS A DEFECTIVE EQUIPMENT ISSUE SEND COMPLAINT TO A.G. WA. A.G. IDA. IDAHO ALSO SEND COMPLAINT TO B.B.B. AND N.H.T.S.A. HAD TRUCK IN 4 TIMES FOR REPAIR FOUND PROBLEM BULLETIN NUMBER 18 -NA-001 DOC. ID. 4924668 COMPLAINT TO GMC TALKED WITH 5 TIMES CLOSED MY COMPLAINT 02-06-2019 THERE IS NO FIX FOR THESE HEADLIGHTS. BOUGHT THIS TRUCK NEW 10-17-18 PROBLEM WAS NOTICED DRIVING IT HOME FROM KELLOGG IDA. TO SPOKANE WA. TOOK TRUCK IN AT 536 MILES FOUND PROBLEM TOOK TRUCK HOME IT DIDN'T FIX THE PROBLEM TOOK IT IN AGAIN 659 IT DIDN'T FIX THE TOOK IT IN AGAIN THE THIRD TIME IN AT 822 MILES HAND ME DOCUMENT NO. 4924668 AND INFORMATION NO. 18-NA-001 HEADLAMP SHAKES OR FLICKERS DO NOT FIX. TOOK TRUCK TO DAVE SMITH GMC DEALER IN KELLOGG IDA. FOUND SAME PROBLEM HAD TRUCK 4 DAYS SAME BULLETIN . CMC CLOSES THE CASE WILL LET ME KNOW WHEN AND IF IT CAN BE FIXED IN THE FUTURE SAID IT COULD TAKE YEARS. THANK YOU [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).' *PM

Add Complaint

2018-03-26

EXTERIOR LIGHTING PROBLEM

Date Of Incident: 2018-03-15
VIN: 1GT42XCY5JF
Components: EXTERIOR LIGHTING
Summary: HID HEADLIGHTS ON MY TRUCK FLICKER SIGNIFICANTLY, AND DIM AND BRIGHTEN, WHILE DRIVING VEHICLE ON BUMPY SURFACES. THIS IS BRAND NEW TRUCK WITH 2500 MILES ON IT. I PAID EXTRA FOR THE ALL TERRAIN VERSION. GMC'S OFFICIAL RESPONSE TO ME IS THAT IT IS NORMAL FOR HID HEADLIGHTS TO FLICKER ON/OFF, AND THEY ARE REFUSING TO DO ANYTHING ABOUT THE ISSUE.

Add Complaint

2018-03-01

STEERING PROBLEM

Date Of Incident: 2018-01-01
VIN: 1GT42XEY2JF
Components: STEERING
Summary: STEERING WHEEL SHAKING FROM 70MPH TO 78 MPH HIGHWAY DRIVING

Add Complaint

2018 Gmc Sierra 3500 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 6 recalls for different components of the 2018 Gmc Sierra 3500.

2024-10-10

Manufacturer: General Motors, LLC
Components: AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
Summary: General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
Consequence: A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.
Remedy: Dealers will replace the left and right side RRAB modules, free of charge. Owner notification letters are expected to be mailed November 25, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC Customer Service at 888-988-7267. GM's number for this recall is N242474500.

2023-02-02

Manufacturer: General Motors, LLC
Components: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
Summary: General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles equipped with a dual fuel tank option. The rear fuel tank may collapse and prevent the fuel pump from transferring fuel to the front tank, resulting in an engine stall.
Consequence: An engine stall increases the risk of a crash.
Remedy: Dealers will inspect the fuel tank and fuel pump module, replacing them as necessary. Dealers will also add a vent hose to the rear tank assembly. Repairs will be performed free of charge. An interim owner notification letter informing owners of the safety risk was mailed on March 15, 2023. Owner notification letters were mailed June 21, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N222368030.

2021-07-01

Manufacturer: General Motors, LLC
Components: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
Summary: General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord. An electrical short-circuit may occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.
Consequence: An electrical short-circuit can increase the risk of a fire.
Remedy: Dealers will replace engine block heaters and heater cords. Vehicles that have this feature disabled as a remedy to the safety condition will be contacted and offered replacement block heaters and heater cords under a separate customer satisfaction program, free of charge. GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in recall 19V-328, the heater cord will be replaced and rerouted, free of charge. Interim owner notifications were mailed on August 13, 2021. Owner notification letters are expected to be mailed on April 4, 2022. Customers may call GMC customer service at 1-800-462-8782. GM's number for this recall is 212329840.

2019-04-25

Manufacturer: General Motors LLC
Components: ENGINE
Summary: General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and 3500 vehicles equipped with Duramax 6.6 liter diesel engines and an optional engine-block heater. The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.
Consequence: A short-circuit may damage the engine components and increase the risk of fire.
Remedy: GM will contact owners, dealers will replace the engine block heater, free of charge. Additionally, in Chevrolet Silverado 2500 and 3500 vehicles, dealers will install a new rerouted heater cord. The recall began December 11, 2019. Owners may contact GM customer service at 1-586-596-1733. GM's number for this recall is N182206310.

2019-02-07

Manufacturer: General Motors LLC
Components: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
Summary: General Motors, LLC (GM) is recalling certain 2016-2018 GMC Sierra 3500 and Chevrolet Silverado 3500 trucks equipped with gasoline engines and dual fuel tanks. The fuel-level sensor in the front tank may stick in a low-level position, allowing the rear tank to overfill the front tank.
Consequence: If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.
Remedy: GM has notified owners, and dealers will replace the rear-tank fuel-pump module, inspect the front tank and, if necessary, replace the front tank, free of charge. The recall began July 30, 2019. GM's number for this recall is N182204190.

2017-09-14

Manufacturer: General Motors LLC
Components: SEAT BELTS:FRONT:RETRACTOR
Summary: General Motors (GM) is recalling certain 2017-2018 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 trucks. The front seat belt retractor assemblies were built with the incorrect torsion bar. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 209, "Seat Belt Assemblies."
Consequence: The seat belt retractors may not perform as intended during a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will replace both front seat belt retractor assemblies, free of charge. The recall began March 24, 2021. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's numbers for this recall are 17368, 17375, and 17376.

Additional sources

More sources of information about 2018 Gmc Sierra 3500 problems:

Common 2018 GMC 3500 Diesel Problems - Q&A with Experts

https://www.justanswer.com/gmc/kwwq0-2018-gmc-sierra-3500hd-duramax-6-6l-diesel-trouble.html

Dec 29, 2022 ... 2018 GMC sierra 3500hd duramax 6.6l diesel, have trouble finding the issue. What's going on is that once I start the - Answered by a ...

2018 GMC Sierra 3500 HD Crew Cab Problems | Kelley Blue Book

https://www.kbb.com/gmc/sierra-3500-hd-crew-cab/2018/common-problems/

How reliable is the 2018 GMC Sierra 3500 HD Crew Cab? See the most common repairs performed and learn if your vehicle is at risk for major repairs in the ...

01' gmc Sierra 3500 m74 Allison 1000 trans/tcm problem | Chevy ...

https://www.duramaxforum.com/threads/01-gmc-sierra-3500-m74-allison-1000-trans-tcm-problem.1033442/

Feb 20, 2024 ... 01' gmc Sierra 3500 m74 Allison 1000 trans/tcm problem ... Of course, there are some common problems ... 2018 GMC Sierra 1500 and 2015-2019 GMC ...

Major Problems With Brakes - 2016 Sierra 3500HD - 2014-2018 ...

https://www.gm-trucks.com/forums/topic/229313-major-problems-with-brakes-2016-sierra-3500hd/

Oct 4, 2019 ... 2016 GM 3500HD has intermittent violent front end shaking when braking. 9/25/17 - 29752 Dealer replaced rotors 1/11/18 - 36833 Calipers ...