There are 1 stored owner reports matching the fuel system leading-label group for the 2012 Lexus CT 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 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)DRIVING UPHILL ON A DIRT ROAD @ ~ 20MPH. GAS ENGINE RUNNING AT THE TIME. FAIRLY STEEP GRADE. ~6% GRADE UPHILL. CAR STARTED TO ACCELERATE AT A RATE I WOULD COMPARE TO MERGING ONTO A HIGHWAY. WAS UNSURE OF WHAT WAS GOING ON AT FIRST SO I DIDN'T ACTUALLY HIT THE BRAKES FOR ABOUT 5 SECONDS AT WHICH POINT I WAS ALREADY AT 45MPH. THE FOUR PASSENGERS IN MY CAR WERE VERY CONFUSED. WE CHECKED THE FLOOR MAT FOR ANY OBSTRUCTIONS AND THAT IT WAS OPERATING CORRECTLY AND IT WAS. I SHUT THE CAR OFF, WAITED A MONTH NITE THEN TURNED IT BACK ON. IMMEDIATELY AS I LET OFF THE BRAKE THE CAR ACCELERATED UP THE HILL. THIS TIME I ONLY ALLOWED IT TO GET UP TO 15MPH BEFORE STOPPING THE VEHICLE. THE BRAKE WAS ACTING AGAINST THE ENGINE PROPELLING THE CAR. BRAKE APPLICATION DID NOT DISENGAGE THE ENGINE FROM TRYING TO MOVE THE CAR FORWARD. I EVEN PUT MY TOES UNDER THE PEDAL TO TRY AND LIFT THE ACCELERATOR MAKING SURE IT WASN'T MECHANICAL ERROR. ZERO MOVEMENT, THE PEDAL WAS IN PLACE. AFTER HAVING LEXUS "ANALYZE" MY VEHICLE THEY CALL ME BACK AND TELL ME "WE CAN'T FIND ANYTHING WRONG WITH IT" AND THAT ALSO THEY DID NOT UPDATE ANY COMPUTERS OR RESET ANYTHING OR SWAP OUT MY BATTERY. THEY EXPECTED ME TO COME PICK UP MY CAR WITHIN THE WEEK OR THEY SAID THEY WOULD REPORT THEIR LOANER CAR STOLEN AND I WOULD BE CHARGED FOR IT. MY ONLY OPTION GIVEN WAS TO GET BACK INTO MY VEHICLE. MY SUSPICION IS MY BATTER ALLOWED ITSELF TO OVERCHARGE WHILE DRIVING DOWN LONG STRETCHES OF MOUNTAIN ROADS AND THEN WAS NOT BEING DRAINED ON THE STRENUOUS UPHILL SECTIONS. THIS OVERCHARGE APPEARED IN THE FORM OF ULTRA ENGINE ASSIST WHICH I EXPERIENCED WITHIN 1 MILE OF STARTING MY CAR AFTER A 4 HOUR HIKE.
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: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.