There are 2 stored owner reports matching the engine leading-label group for the 2012 Lexus RX in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)DURING DRIVING IN THE HIGHWAY SUDDENLY THE WHOLE VEHICLE IS SHAKING AND REDUCED SPEED SUDDENLY; ALL KIND OF ENGINE WARNING LIGHTS ARE TURNED ON AS HAVE TO PULL ASIDE ON THE HIGHWAY. HAVE TO TOW THE CAR TO THE DEALERSHIP AND FOUND THAT CYLINDER VALVE SPRING INSIDE THE ENGINE HAS BROKEN AS THE CAR ONLY HAS ABOUT 65000 MILES. THIS CAUSING VEHICLE TO MISFIRE AND VEHICLE IS SHAKING. THERE ARE MULTIPLE RECALL OF LEXUS MODEL ON VALVE SPRING AND THIS OBVIOUSLY SEEMS AN MANUFACTURER DEFECT.
TL* THE CONTACT OWNS A 2012 LEXUS RX350. WHILE DRIVING APPROXIMATELY 50 MPH, THE LOW ENGINE OIL PRESSURE WARNING INDICATOR ILLUMINATED AND THE ENGINE SHUT DOWN. THE VEHICLE WAS TURNED OFF AND RESTARTED. THE CONTACT STATED THAT THE FAILURE RECURRED APPROXIMATELY SIX TIMES. THE VEHICLE WAS TAKEN TO THE DEALER (LEXUS STEVEN CREEK, SANTA CLARA, CA, 408-553-4500) WHERE IT WAS DIAGNOSED THAT THE OIL WAS LOW AND THAT THE SENSOR NEEDED TO THE REPLACED. THE FAILURES WERE REPAIRED, BUT RECURRED TEN DAYS LATER WHILE DRIVING APPROXIMATELY 60 MPH. THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER. THE TECHNICIAN PERFORMED AN EXTENSIVE ROAD TEST, BUT WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURES. THE MANUFACTURER WAS MADE AWARE OF THE FAILURES AND STATED THAT THERE WAS NO RECALL. NO FURTHER ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS APPROXIMATELY 54,000. UPDATED 8/2/18*JB
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.