Home · 2012 Lexus Rx450h · Complaints

What 14 owners told NHTSA about the 2012 Lexus Rx450h

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (14)Electrical system (4)Brakes (3)Engine (2)Airbags (1)Body & structure (1)Driver assistance (1)Electronic Stability Control (esc) (1)Lights (1)Service Brakes, Air (1)Speed control (1)

4 of 14 complaints match · Electrical system · clear filters

Jan 2, 2026Electrical system

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.

NHTSA ODI 11708430

Apr 17, 2025SuspensionElectrical systemLights

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

NHTSA ODI 11655212

Apr 16, 2025Electrical systemEngine

The engine shuts off for a second while driving

NHTSA ODI 11654908

Sep 9, 2019Electrical system

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.

NHTSA ODI 11254283

Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2012 Lexus Rx450h verdict →