2018 Buick Encore Driver assistance Problems

The contact owns a 2018 Buick Encore. The contact stated that while driving at 40 MPH, the vehicle lost power. The Stabili-trak warning light was illuminated. The vehicle was taken to a dealer where the failure however, where the failure was not duplicated. The vehicle was taken to the same dealer and was diagnosed and determined that the brake sensor needed to be replaced. The vehicle was repaired, but the failure reoccurred approximately 6 months later. The vehicle was taken to an independent mechanic, where an unknown code was cleared. The contact stated that a month after the code was cleared, the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was approximately 20,401.

NHTSA ID

11699795

Incident

Jan 1, 2022

Mileage

20,401 mi

The contact owns a 2018 Chevrolet Encore. The contact stated that while operating the vehicle, the transmission malfunctioned while in first gear, and the vehicle hesitated to accelerate from being stationary. Additionally, the message "Stabilizer" was displayed. The cause of the failure was not yetbeen determined. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not contacted. The failure mileage was 147,000.

NHTSA ID

11668594

Incident

Jun 1, 2025

Mileage

147,000 mi

While driving, my car began to glitch out. The screens started turning on and off, the doors began locking and unlocking, and I lost my ability to steer, brake, and accelerate. It caused me to run a red light and I almost got into a severe accident. This issue has occurred several times, and during more recent occasions the car has turned off completely while driving. There were no warning lights or messages indicating that something was wrong with the car, but sometimes when I turn the car back on, it says “calibrating.” If Buick has sold cars that are capable of losing complete control, this should be investigated immediately.

NHTSA ID

11661607

Incident

May 5, 2025

The contact owns a 2018 Buick Encore. The contact stated while driving 25 MPH, the message "Engine Power Reduced" was displayed and the vehicle lost motive power. The contact was able to continue driving; however, the vehicle would not exceed 25 MPH. The vehicle was taken to the dealer where it was diagnosed that the accelerator pedal had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 41,000.

NHTSA ID

11501090

Incident

Jan 6, 2023

Mileage

41,000 mi

SINCE I BOUGHT THIS CAR IN 04/2018 I HAD MANY PROBLEMS PROBLEMS AS THE ENGINE SENSOR HAD TO BE REPLACED, HEADLIGHTS GOING OUT WHEN I WAS DRIVING, THEY COULD NOT REPRODUCE THE PROBLEM AT THE DEALERSHIP , NOW THE BACK WHEEL DRIVER MODULE IS BAD,IT WILL NEED TO BE REPLACED ,AND FINALLY I ALMOST COULD NOT DRIVE IN THE HIGHWAY ON 04/25/2020, I WAS VERY AFRAID THAT I WAS GOING TO BE IN AN ACCIDENT WHEN THE POWER STEERING WHEEL LOCKED, ABS, BRAKE LIGHTS AND TRACTION LIGHT WERE ALL ON IN THE PANEL AND SO A WARNING SIGNAL.THE VEHICLE WAS IN MOTION.I WAS IN RT 206 IN NJ, AFTER CHESTER.025/2020. I HAD TO STOP BY A MARKET.THE CAR WAS TAKEN TO A SHOP IN NEWTON AND IT WILL BE TOWED TO MCGUIRE DELEARSHIP IN NEWTO FOR REPAIR. I AM VERY SCARED OF DRIVING THIS CAR AND I NEED A SAFE CAR TO GO TO WORK EVERYDAY!!!

NHTSA ID

11322311

Incident

Apr 25, 2020

Mileage

61,000 mi

THIS TOOK PLACE ON PRIVATE PROPERTY IN THE PARKING LOT OF A COMMERCIAL BUILDING. THE VEHICLE WAS IN MOTION GOING FORWARD. IT WAS DECELERATING HEAD-IN INTO A PARKING SPOT. THE BRAKING ACTION WAS ENGAGED. THE VEHICLE HAD SLOWED TO ABOUT 5 MPH. MY RIGHT FOOT WAS ON THE BRAKE PEDAL AND THE BRAKING WAS ENGAGED. I THEN HEARD THE SOUND OF THE ENGINE REVVING AT A VERY HIGH RATE. THERE WAS A HIGH WHINING SOUND. I LOST BRAKING AS MY RIGHT FOOT DEPRESSED THE PEDAL ALL THE WAY TO THE FLOOR. THE CAR SUDDENLY ACCELERATED FORWARD AT AN INCREASED SPEED. IT JUMPED THE SIDEWALK CURB, CROSSED THE CONCRETE SIDEWALK, AND SLAMMED INTO A CINDER BLOCK WALL COLUMN ON THE SIDE OF A BUILDING. THE VEHICLE FELT LIKE IT EXPERIENCED SUDDEN UNINTENDED ACCELERATION.

NHTSA ID

11308591

Incident

Oct 7, 2019

Mileage

14,367 mi

8/14-CAR WAS LACKING POWER, SERVICE MANAGER WAS ABLE TO DUPLICATE ISSUE ON ROAD TEST . 8/24-CAR SERVICE FOR ROUGH IDLE AND LACK OF POWER, SERVICE STABILITRAK LIGHT ON AND CHECK ENGINE LIGHT ON WITH AN ERROR CODE OF P0171. IN SEPTEMBER, CAR STARTED TO SHAKE WHILE IN PARK BUT NO CHECK ENGINE LIGHT, DEALER ADVISE UNABLE TO DO ANY REPAIRS UNLESS CHECK ENGINE LIGHT ON. 11/27- CHECK ENGINE LIGHT ON AGAIN FOR SAME CODE, P0171. VEHICLE IS CURRENTLY IN SHOP. VEHICLE HAS HAD THE SAME ISSUES DEC 2018 AND AT THE TIME OF PURCHASE. GM DEALERS ARE NOT ABLE TO FIX TURBO ISSUE AND P0171 ISSUES. MY VEHICLE IS NOT OPERATING AS DESIGNED AND IT IS A SAFETY ISSUE.

NHTSA ID

11282934

Incident

Jul 22, 2019

Mileage

48,000 mi

WHEN IT RAINS MOST IF THE TIME THE VEHICLE ONSTAR SETS OFF ALERTS FOR MY ANTILOCK BRAKES AND STABILITY TO BE CHECKED. DEALER SAID IT IS NORMAL AND NOT CONCERNING BUT CHECKED AT THE 1 YEAR INSPECTION FOR ME. NPF. A MONTH LATER A RAINY DAY, ALERTS, AND THE VEHICLE WOULDN'T START. ALL THE LIGHTS CAME ON, 'PRESS BRAKE TO START' APPEARED BUT PRESSING BREAK DID NOT START IT. AFTER AN HOUR OF TRYING VARIOUS 'TRICKS' IT STARTED WITH THE REMOTE STARTER. A WEEK LATER SAME THING. RAIN, ALERTS, AND NO START. THIS TIME 2 HOURS OF TRYING VARIOUS TRICKS- (EMERGENCY BREAK ON OFF/ PARK PUSHED ALL THE WAY UP, WHEELS FORWARD, REMOTE START ATTEMPTS, ONSTAR DIAGNOSTICS ETC) I HAD TO HAVE IT TOWED. THE MECHANIC FROM AAA TRIED AND NOTHING, WE TOWED AN HOUR BACK TO DEALERSHIP AND HE TRIED ONCE MORE, NOTHING. NEXT MORNING THE DEALERSHIP REPORTED NPF. I AM PICKING IT UP TOMORROW BUT EXPECT TO REPORT THIS HAPPENING AGAIN SOON.

NHTSA ID

11278761

Incident

Nov 5, 2019