2012 Lexus Rx450h problems
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Common 2012 Lexus Rx450h problems
The 2012 Lexus RX 450h, a hybrid luxury crossover SUV, has been praised for its low emissions and excellent fuel economy. However, like any vehicle, it has its common problems that owners have reported.
One of the most frequently reported issues is electrical problems, particularly with the non-engine electrics such as the media system and windows.
Another common problem is premature brake wear, which has been a consistent complaint among RX 450h owners. This issue can cost between $40 and $248 for parts.
Additionally, some owners have reported problems with the suspension system, particularly the shock absorbers. These issues can be caused by the heavy weight of the vehicle, which can put a lot of pressure on the suspension components.
The Lexus RX 450h also has a hydraulic component called the actuator, which communicates with the ECU to take control of the brakes in an emergency situation. Some RX 450h models have unreliable anti-lock braking systems, and the actuator is often to blame. The actuator needs to be replaced for the system to function correctly, with average repairs costing £53.03 when booked through WhoCanFixMyCar.
Lastly, the fuel pump impeller in some RX 450h models may crack, leading to fuel pump failure. This issue is more common in the second generation of the 450h, which came out in 2016.
In summary, the 2012 Lexus RX 450h has several common problems that owners have reported, including electrical issues, premature brake wear, suspension problems, and fuel pump failure. While these issues can be costly to repair, Lexus has a strong reliability record, and the first generation of the RX 450h has not been subject to any recalls, indicating its overall reliability.
What are the common faults on a Lexus RX450h?
The following problems are often reported by owners.
- Broken fuel pump. The fuel pump impeller may crack, causing the low-pressure fuel pump located in the fuel tank to stop working. ...
- Scuffed alloys and bodywork. This is less to do with the car itself and more to do with the driver.
What are the best years for used Lexus RX450h?
The Best Model Years to Buy a Lexus RX 450h
With the 2020, you would only pay, on average, 72% of the price as new, with 83% of the vehicle's useful life remaining. The 2021 and 2019 model years are also attractive years for the RX 450h, and provide a relatively good value.
Are Lexus RX450h reliable?
RX owners were generally satisfied with their cars according to our most recent What Car? Reliability Survey, which found it finishing second out of 24 cars in the large SUV class. This was backed up by the Lexus brand being the top-scoring manufacturer in our survey of 32 car manufacturers, with a score of 98.3%.
Is Lexus RX450h expensive to maintain?
Typically, hybrid vehicles like the RX450h can be a tad pricier to maintain than their non-hybrid counterparts due to their advanced technology. On average, you might be looking at around $550 to $700 annually for regular maintenance tasks.
2012 Lexus Rx450h car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Lexus Rx450h problems, we found that the most common problems with these 2023 model year vehicles are:
- Unknown or other problems
- Service brakes problems
- Power train problems
- Vehicle speed control problems
- Engine problems
The graph below shows statistics for all 2012 Lexus Rx450h vehicle components and the number of complaints received.
2012 Lexus Rx450h complaints
The NHTSA has received 6 complaints about various vehicle components related to the 2012 Lexus Rx450h.
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE PROBLEM
- Date Of Incident: 2023-10-11
- VIN: 2T2BK1BA4CC
- Components: POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE
- Summary: October 20, '23 Our recent DEAD STOP! Whistle blower! Did you know that when the alternator goes out on a Lexus, that the car draws down energy from the battery to keep the car going? That's only for about a mile or so, then the car shuts down! You can't steer and THE ENGINE STOPS RUNNING and you have no power as you come to a dead stop, whether on the freeway, or one lane mountain pass road, where we would have been later. What would we have done? Scary! Luckily, our Lexus stalled on a city street nearing our on-ramp to the freeway. (needing to be towed.) Lexus has a serious engineering-defective-design-flaw that probably is responsible for accidents. Thanks, [XXX] . Pass it on please! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2022-08-17
- VIN: 2T2ZK1BA6CC
- Components: UNKNOWN OR OTHER
- Summary: Sunroof exploded while driving in middle lane of 5 lane interstate. Cars, semi trucks all around me, center section of sunroof glass blew up and back into a pickup truck directly behind me. Pieces of glass flew in all directions. Luckily the moonroof/sunroof and interior panel were closed. No one was hurt. Other than a loud POP! then 2-3 seconds later an explosive BOOM! no warning light or message came on. Took the car to a local windshield shop, then a local Lexus dealer, another repair shop next week - all within 10 mi radius from where I live. Problem could not be reproduced, no one will confirm how it could have happened. Filed this report after reading about other Lexus - other mfg - having same issue.
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2022-04-08
- VIN: 2T2ZK1BA0CC
- Components: UNKNOWN OR OTHER
- Summary: Lexus never informed me or the dealer that the hatchback lift will fail if the weather is below 60 degrees. Sometimes even warmer. I replaced the hatchback lift when I was up in WV and loading up my vehicle and the hatchback almost knocked me out! It happened on several occasions. When I called the dealer they informed me that is normal. Normal. It could of killed me or knocked me out and given me concussion. Came back to Florida and it did the same thing this time high 60's low 70's. I replaced them and it happened again. These hatchback lifts should not happen. A mechanic had a gash in his forehead because I was explaining it to him and the damn hatchback came down on him. He couldn't catch it on time. It came down so quickly. Well, I have to replace the hatchback lift again. This is so wrong. This products especially on a Lexus should not be doing this. Very very dangerous.
SERVICE BRAKES, AIR PROBLEM
- Date Of Incident: 2021-11-11
- VIN: jtjzb1ba2c2
- Components: SERVICE BRAKES, AIR
- Summary: The contact owns a 2012 Lexus RX450H. The contact stated while driving 30 MPH, several unknown warning lights illuminated with an audible beeping sound. A message appeared on the instrument panel to check the ABS system. The contact pulled over and waited a few minutes to check the brakes. The contact found no failure and continued driving to the residence. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 112,000.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2019-04-01
- VIN: JTJBC1BA6C2
- Components: ELECTRICAL SYSTEM
- Summary: TL* THE CONTACT OWNS A 2012 LEXUS RX450 HYBRID. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT HEARD A STRANGE AND CONSTANT BUZZING NOISE THROUGHOUT THE VEHICLE. THE CONTACT STATED THAT SHE BELIEVED HER EX-BOYFRIEND HACKED INTO HER VEHICLE. THE VEHICLE WAS TAKEN TO LEXUS OF WESTMINSTER (13590 BEACH BLVD, WESTMINSTER, CA 92683, 714-702-1849) WHERE SHE WAS INFORMED THAT THEY WOULD HAVE TO TAKE APART THE VEHICLE FOR DIAGNOSTIC TESTING. THE TESTING WOULD BE AT THE CONTACT'S EXPENSE. THE MANUFACTURER WAS CONTACTED AND DID NOT ASSIST. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 70,000.
UNKNOWN OR OTHER,SERVICE BRAKES PROBLEM
- Date Of Incident: 2018-06-17
- VIN: JTJBC1BA3C2
- Components: UNKNOWN OR OTHER,SERVICE BRAKES
- Summary: AFTER WASHING MY CAR AND LETTING IT SIT IN MY GARAGE FOR A MONTH THE REAR BRAKE CALIBERS WE'RE STUCK. MY HYBRID BATTERY IS LEAKING ACID ON THE BOTTOM OF THE VEHICLE AND CAUSES CORROSION.
Negative 2012 Lexus Rx450h car reviews
Positive 2012 Lexus Rx450h car reviews
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The fuel economy of this vehicle is impressive, surpassing that of my previous Highlander Hybrid. I am consistently achieving over 29mpg overall, and even over 30mpg when using pure gas. On the interstate, I am getting about 26-27mpg, and I have not experienced any pinging with 87 octane fuel. I have found that using high-test fuel does not improve the mpg. While the features were initially challenging to navigate, I have quickly become familiar with them. The only disappointment has been the GPS, which has an outdated map base and poor voice recognition. Additionally, some functions cannot be used while driving. However, I have found a solution by mounting a Garmin on the dash. Overall, this vehicle provides a marvelous ride!
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I've been driving my RX 450H for around 7-8 years and I absolutely love it. As someone who spends a tremendous amount of time driving for work, I wanted something that was both nice and comfortable. We purchased the extra maintenance plan and at nearly 200,000 miles, I've only had to do the scheduled oil/maintenance, tires and a battery. More importantly, I find driving it to be an absolute pleasure. I completely agree that mileage is contingent upon driving style. By avoiding quick acceleration and taking my foot off the accelerator when I know I'm braking soon, I'm able to average 26 mpg even when hitting 80mph on the highway. The only minor frustration I have is that the USB port location is a bit inconvenient, but I understand that they've changed this in newer models. I leave the connector plugged in so I rarely have to access the port. I must say that my Lexus dealership, Johnson Lexus in Raleigh NC, couldn't be more accommodating during maintenance. They offer loaner cars if reserved beforehand, shuttles to the mall across the street if desired, and a nice set up at the dealership where I can work or watch TV in designated lounges. Based on my experience, I highly recommend this car and wouldn't hesitate to buy another Lexus.
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This SUV is truly amazing! What's great about it is that the body changes so little each year that the car seems like new, at about a third of the price of a new one. I personally prefer the more refined grille of the 2010 model, as I think it looks more elegant. Despite having somewhat high mileage, the previous owner took extremely good care of it, so it feels like new. I haven't had any problems with it so far, except for a little carriage squeaking on overpasses for some reason, but not on regular paved roads. However, the ride is as smooth and quiet as silk. My favorite things about this car are the cushy interior and the high ride, which makes it easy to get in and out of the car. The quality of the interior is great, with soft leather and nice wood on the steering wheel and other locations. Although the charger outlet and USBs are not in the most convenient place, they are hidden in a storage bucket in the front center console, which allows you to store things that are being charged or played out of sight. The heated seats are very nice, and I love the auto lights and being able to talk on the phone hands-free via Bluetooth connected phone. Mine is silver (tungsten pearl, to be precise; it is a little different than silver, I've noticed) with black interior and some light gray around the window area. I absolutely love it! Sometimes after I get out of it and walk away, I look back at it just to admire it. By all means, I highly recommend buying this luxurious car a few years later at a fraction of the price!
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I'm so happy with my new red car! I did a lot of research before buying it and I'm glad I did. The comfort package and all the bells and whistles make it even better. I learned that driving style can affect mileage, so I've been taking it easy and using cruise control whenever possible. I'm averaging 28 mpgs, which is great for my 6-mile commute to work and weekend mountain biking trips. If you take it easy and enjoy the ride, you can get over 400 miles per tank. The voice activation feature is amazing and easy to use once you read the manual. Overall, it's a very comfortable and enjoyable car to drive.
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I'm so glad to hear that you're enjoying the RX450h! It's great to know that you find it comfortable and fun to drive. While it may take some time to get used to all of its capabilities, I'm happy to hear that basic operation is easy and intuitive. It's also wonderful to hear that you received very good service from the dealer. Thank you for sharing your experience with us!
Additional sources
More sources of information about 2012 Lexus Rx450h problems:
Lexus RX 450h Problems: Common Issues and Repair Costs ...
Lexus RX 450h 2009-2015 faults · 1. Shock absorber failure · 2. ABS actuator failure · 3. Faulty electrics.
What are some of the 2012 Lexus RX 450h Hybrid problems?
Jul 16, 2020 ... The top complaints associated with ownership of the 2012 lexus rx 450h include electrical and premature brake wear issues. Like. (5). Kelly ...
Rx 450h known problems? - RX 300 / RX 350 / RX 400h / RX 200t ...
Jun 11, 2023 ... Hi, im a forum member already with an sc430, i restore cars for a hobby and handle most issues with the 430 and have a carsoft scanner im ...
Any Issue(s) on 4th Gen RX450h ? - ClubLexus - Lexus Forum ...
Mar 11, 2016 ... I had a 2008 RX 450h and a 2012 RX 450h, and never had any problems with them either. It's a great improvement over the 2012. litzdog911's ...
Other years of Lexus Rx450h
Are you having problems with your 2012 Lexus Rx450h?
Devonte Satterfield 2024-09-12
Hi there! I hope you're doing well. I wanted to share some feedback on our fuel economy. After driving 8500 miles, we've been averaging 25.5 mpg. As a suburban/rural Ohio mom with a family of 5 teens, we haven't been doing any special driving. It's quite a bit different from the 29 combined mpg we were represented with, so we're a bit disappointed. Thanks for listening!
Cleo Eichmann 2024-08-13
The ride can be quite uncomfortable, especially if the road surface is not smooth. It is disappointing that the only front 12v outlet is located in a difficult-to-reach spot. It would have been more convenient to have a second outlet. The price of the 450h is quite high, but unfortunately, it does not live up to the luxurious standards of Lexus. This is our third and final Lexus unless the suspension system is improved. It is unfortunate to see the decline in the quality of Lexus SUVs, especially when compared to the comfortable and soft-riding RX series from 1999-2009. We have only driven 3000 miles in the past 6 months, as our Honda truck is much more comfortable. We will be looking for a different car next year.
Jeremy Streich 2024-03-27
The integrity of the cabin was compromised, and it is unclear whether it was due to post-earthquake radioactive material or the use of cosmoline. Although Lexus denies the use of cosmoline, the service department at the dealership claimed that this toxic substance was used, resulting in noxious fumes. Unfortunately, the dealership would not test the car under similar circumstances. As a result, my wife and child fell ill, and we had to return the car within a month, incurring a $5000 penalty. While the dealership was willing to help, the Lexus company was uncooperative. I am now considering reaching out to Federal and state regulatory authorities and pursuing litigation. In the unlikely event that Lexus stands behind their product, I will update my statement. However, I found Lexus corporate to be bureaucratic, and the dealership had changed their story many times, such as claiming that the noxious fumes would burn off.