Built around the 2012 Lexus RX 450h and its 3.5L V6 hybrid (2GR-FXE), this service and repair manual is tied to the exact year, engine and trim in front of you, so the specifications and torque figures it gives are the ones Lexus published for this car rather than values carried over from a neighboring model year.
Engines
- 3.5L V6 HYBRID Naturally Aspirated
Trims
- Base
Known issues on the 2012 RX 450h. No recalls are on federal record for the 2012 RX 450h. Owners have filed 14 complaints for the year, and Lexus has issued no technical service bulletins for it. The diagnostic and repair procedures you would follow to run down any of those owner-reported faults are here.
Whether you are chasing a symptom an owner report points to or working through a scheduled service, it keeps you on the OEM procedure and the correct specification for this 2012 RX 450h.
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.
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
Air bag issue light turn on, it said b1608 front satellite sensor bus initialization error LH code
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 s
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
The contact owns a 2012 Lexus RX 350. The contact stated that the four rear tires were replaced with Blackhawk Tires, Tire Line: Street HH11, Tire Size: 235/45/R18, DOT Number: 1YJEERYLY. The contact stated that while driving approximately 55 MPH, the low tire pressure warning light illuminated, and the vehicle started pulling to the right. The contact started pumping the brake pedal and was able to pull over safely. The contact observed that the driver's side rear tire had a gash on the side wa
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.
The contact owns a 2012 Lexus RX350. The contact stated while driving 70 MPH, the ABS warning light illuminated, and the ABS seized. The contact was able to coast to the side of the road. The vehicle was restarted and functioned as intended. The vehicle was taken to the dealer; however, no cause for the failure was found. The contact stated that the failure persisted. Upon investigation, the contact related the failure to NHTSA Campaign Number: 14V054000 (SERVICE BRAKES, HYDRAULIC, ELECTRONIC ST
failed Brake Actuator
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
Pearl White (077) paint is delaminated from metallic car surfaces. The paint appears to be separating from the surface and peeling/cracking, not consistent with normal wear alone. I previously reported this concern to Lexus Corporate.
My car powers off while driving and then cuts back home within a second. It also has electrical issues the lights so flash during the night when you’re driving and then the front and shakes so bad that it shakes you just about off the road when you hit the brakes
The engine shuts off for a second while driving
Odometer Fraud. The contact owns a 2012 Lexus RX350. The contact purchased the vehicle, and it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of the purchase, the mileage was 127,832. The contact stated that at the time of registration, it was discovered that the mileage was 257,193.
