2017 Buick Lacrosse

36 complaints on file, page 1 of 2.

1. Filed Sep 29, 2026Failure Nov 15, 2025Chicago, ILUnknown or other, Vehicle speed control

   My 2017 Buick LaCrosse Premium AWD experienced a sudden, dangerous mechanical failure of the Accelerator Pedal Position Sensor system while operating the vehicle under normal road conditions. The vehicle suffered an immediate loss of engine continuity and engine power, forcing the car into a hazardous low-speed limp mode while in active traffic. A certified repair facility inspected the vehicle, confirmed a complete failure of the internal pedal sensor circuit, and replaced the unit to restore safe operating throttle control. This specific electronic and mechanical defect represents a widespread manufacturing vulnerability that General Motors has officially acknowledged under Special Coverage Adjustment N182188250. This failure poses an immediate safety hazard to occupants and surrounding traffic, as a sudden drop in throttle response on highways or busy intersections leaves the driver unable to maintain safe traveling speeds or accelerate out of oncoming hazards. General Motors has opened Corporate Case #113840289 regarding this failure but has failed to issue my safety reimbursement.

   NHTSA complaint 11767773
2. Filed Sep 29, 2026Failure Sep 2, 2026Chicago, ILPower train, Unknown or other

   My 2017 Buick LaCrosse Premium AWD (116,220 miles) experienced a severe all-wheel-drive failure causing significant binding and a loud rumbling/clunking noise during sharp, low-speed cornering and acceleration. The vehicle has been officially inspected by two separate authorized manufacturer service centers. On September 25, 2026, a certified GM technician at Advantage Buick GMC formally documented that the vehicle has a prominent rear drivetrain failure, identifying it as a "rear diff or driveshaft issue" that requires full component replacement. Prior to the complete mechanical failure, no warning lights or dashboard indicators illuminated. The binding symptoms appeared suddenly during normal city driving maneuvers. This drivetrain failure directly aligns with documented corporate engineering safety campaigns, specifically Customer Satisfaction Program #16069 (propeller shaft/driveshaft C-clip disengagement defect) and TSB #18-NA-049 (catastrophic twin-clutch carrier assembly failure). The failure of this component poses a severe, immediate driving hazard as a sudden disengagement of the driveshaft or differential lockup at road speeds can result in a catastrophic loss of vehicle control. General Motors has ghosted my corporate case (#113840289) and refused to remedy this manufacturing vulnerability

   NHTSA complaint 11767766
3. Filed May 9, 2026Failure Apr 28, 2024Missouri City, TXSuspension

   This vehicle has major suspension issues containing the complete strut assembly, lower control arms, and strut yokes/forks, which can not be replaced due to the discontinuance of the vehicle and parts itself. Because of this the car cannot receive an alignment which cause the tires to be eaten up at a rapid rate. When going over a bump in the highway the steering column goes one way while the car goes another. The car slides all over the road. Extreme safety concerns for my family and I.

   NHTSA complaint 11736767
4. Filed Aug 23, 2024Failure Aug 23, 2024Mechanicsburg, OHSuspension

   The contact owns a 2017 Buick Lacrosse. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the front driver's side wheel well. The contact stated that increased effort was needed to maneuver the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the front driver's side strut. The vehicle was not repaired because parts were not available. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was unknown. The VIN was not available.

   NHTSA complaint 11610498
5. Filed Jul 20, 2024Failure Dec 13, 2023Loveland, OHAir bags

   The air bag warning light in the dash came on intermittently during driving. I took the vehicle to the dealer for service December 27, 2023, since it was a safety issue that the authorized dealer needs to take care of. At first, they said it was a bad battery and the safety system needed reprogramming. Which they did for about $800. When driving home from the dealer the air bag light came back on so a few days later I returned the car to the dealer. Then they said it was the passenger seat safety module that needed to be replaced. That was back in January of 2024, over 6 months ago. At that point I learned that the car is not drivable since the air bag could deploy at any time or would not function if requested in an accident. General Motors says they do not have the part that is critical to the operation of the air bag system to replace. That was over 6 months ago, with no prediction when they will have the part. This is a critical part of the safety system that they can't replace which leads me to believe there is more to this than they are telling me!! Federal law requires them to have parts for vehicles less than 7 years old - they don't!! How many other vehicles have this part? Is the part defective since it failed without any other causes that could be identified? Why can't they replace this critical safety part after 7 months of waiting with no end in sight!!!

   NHTSA complaint 11603514
6. Filed Jul 16, 2024Failure Jun 16, 2024Toledo, OHElectrical system

   The amplifier stopped working and all the sound comes through the amp including but not limited to seatbelt, door ajar, rear seat reminder, blinkers, back up sounds, and any and all sounds that the car my make for any safety features, onstar features, radio, Bluetooth, the list goes on.

   NHTSA complaint 11602816
7. Filed Jun 24, 2024Failure Jun 24, 202365,000 milesBeaumont, TXSuspension

   The contact owns a 2017 Buick Lacrosse. The contact stated while driving at various speeds, the vehicle was making an abnormally loud stomping sound and the wheels were shuddering significantly. The contact stated that the failure had been recurring while driving. The vehicle was taken to the dealer, where it was diagnosed that the suspension yoke had failed and needed to be replaced; however, the part had been discontinued. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the part had been discontinued. The failure mileage was approximately 65,000. The VIN was not available.

   NHTSA complaint 11596103
8. Filed May 28, 2024Failure Aug 17, 202033,000 milesHomestead, PAService brakes

   The contact owns a 2017 Buick Lacrosse. The contact stated that the rear brakes were worn three times faster than the front brakes. The check engine warning light was illuminated. The contact was concerned about the safety of the vehicle. The vehicle was taken to the dealer, where it was diagnosed; however, the cause of the failure was not yet determined. The vehicle was taken to another dealer but was not yet diagnosed. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to trade the vehicle. The failure mileage was approximately 33,000.

   NHTSA complaint 11591082
9. Filed Mar 1, 2024Failure Feb 1, 2024123,000 milesLawrenceville, GASteering

   The contact owns a 2017 Buick LaCrosse. The contact stated while driving at an undisclosed speed, the Steering Advance System Declined message was displayed. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The failure recurred. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The contact related the failure to NHTSA Campaign Number: 17V116000 (Steering) however, the VIN was not included in the recall. The failure mileage was approximately 123,000.

   NHTSA complaint 11574940
10. Filed Feb 12, 2024Failure Feb 10, 2024Bechtelsville, PAElectrical system

    Intermittent failure to start All electrical components failed to operate after total shutdown while at a stopped traffic light. After being towed to dealer it did start on its own.

    NHTSA complaint 11571534
11. Filed Feb 11, 2024Failure Feb 8, 2024Newport News, VAElectrical system, Vehicle speed control

    Vehicle loses power every gmc vehicle I have owned (3) seen to have this issue throttle pedal position sensor while driving on the interstate vehicle speed drops to reduce engine power which is very scary and dangerous

    NHTSA complaint 11571349
12. Filed Dec 29, 2023Failure Dec 11, 2023700 milesLynwood, ILEngine, Power train

    The contact owns a 2017 Buick Lacrosse. The contact stated that after his wife had parked and turning off the vehicle, moments later the vehicle was restarted and the check engine and TCM warning lights remained illuminated. Additionally, the transmission shifter failed to shift out of park. The vehicle towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 70,000.

    NHTSA complaint 11562549
13. Filed Sep 26, 2022Failure Feb 1, 202212,500 milesColumbus, OHEngine

    The contact owns a 2017 Buick Lacrosse. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power on several occasions. The vehicle restarted after a while. The vehicle was taken to the local dealer where it was diagnosed with a faulty power inverter module. The vehicle was repaired but the failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 12,500.

    NHTSA complaint 11486363
14. Filed Jun 28, 2022Failure Jun 25, 2022Laurel Hill, NCElectrical system, Power train

    Car has 4 trips on rollback and one driving in for transmission problems 3 trips was when coming to a stop the car will will slide to stop almost making us hit dash of car each time there would be a warning about a minute before service transmission . One of the Trip for transmission service light I did drive it in. The car went in yesterday for transmission service again. My thinking of this is what would happen if I were driving 70 MPH and the car locked up what would happen to me and the people around me.

    NHTSA complaint 11471301
15. Filed Jun 4, 2022Failure Jun 21, 2021Conroe, TXAir bags

    the airbag lite has been coming on for the last year saying it needs to be serviced. I have had it to the buick dealer for 4 times this last year and they still can not of will not fix it.The airbag lite comes on when we turn the steering wheel to the left.The last time I had it in was March of this year.When we left with the car the first left hand turn I made it came on.I am tired of fooling with it.after they work on it I told them to take it for a trail drive thye did not.

    NHTSA complaint 11467521
16. Filed Feb 17, 2022Failure Feb 7, 202215,000 milesOrland Park, ILSuspension

    The contact owns a 2017 Buick Lacrosse. The contact stated that while driving at 20 MPH and making a left turn, there was an abnormal noise coming from the front passenger side of the vehicle. The contact mentioned the failure was related to the bushings. The vehicle was taken to an independent mechanic and then to a dealer where it was informed that the part to repair the vehicle was no longer in production. The vehicle was not repaired. Themnaufactuer was notified of the failure. The failure mileage was 15,000

    NHTSA complaint 11452579
17. Filed Aug 24, 2021Failure Mar 1, 202145,000 milesMiddletown, OHElectrical system, Fuel system, Gasoline

    The contact owns a 2017 Buick LaCrosse. The contact stated that while at a stoplight the fuel-saving feature activated and the engine shut-off. After removing his foot from the brake pedal the STOP/START feature failed to activate. The contact used the Push to Start button and restarted the vehicle. The vehicle was taken to the local dealer who was unable to duplicate the failure. The failure persisted. The manufacturer was not notified of the failure. The approximate failure mileage was 45,000.

    NHTSA complaint 11430318
18. Filed Apr 7, 2021Failure Oct 12, 202012,000 milesMorton Grove, ILBody

    CAR DOORS UNLATCHED (BECOMING IN OPEN POSITION [UNLOCKED AND UNLATCHED] BEFORE IT BEING COMPLETELY OPEN). IT HAPPENED TWICE, ONES WHEN I WAS DRIVING AND THE WARNING BUZZER TURNED ON AND THE INSTRUMENT PANEL GIVE ME A MESSAGE TELLING ME THE DRIVING DOOR IS OPEN, THIS IS HAPPENED SUDDENLY AFTER DRIVING FOR 10 MINUTES IN VERY GOOD LOCAL STREETS CONDITION. I STOPPED TO CHECK THE DOOR AND I WAS SURPRISED TO FIND ITS BEEN UNLATCHED TO THE PRE OPEN POSITION. SECOND TIME HAPPENED WHEN WAS THE CAR PARKED AND LOOKED, AFTER ABOUT 30 MINUTES THE CAR HORN STARTS BEEPING AND THE LIGHTS FLASHING, L GOT A MESSAGE FROM ONSTAR ON MY PHONE TELLING ME MY CAR DOORS ARE IN OPEN POSITION. I WENT OUT TO CHECK THE CAR AND I FOUND THE DRIVER SIDE REAR DOOR IS IN OPEN POSITION (PRE OPEN POSITION, UNLOCKED AND UNLATCHED POSITION, IF YOU PULL THE DOOR IT WILL OPEN COMPLETELY). THIS IS A SAFETY CONCERN

    NHTSA complaint 11406833
19. Filed Feb 26, 2021Failure Nov 24, 202061,350 milesBrooksville, FLEngine

    PURCHASED VEHICLE JULY 25, 2020. TOOK THE CAR FOR ITS FIRST OIL CHANGE, IN OCTOBER. ON NOV 23, 2020, THE CAR ENGINE LIGHT CAME ON WHILE DRIVING ON THE HIGHWAY. ERROR CODE: P0430 "CATALYST SYSTEM LOW EFFICIENCY BANK 2". ON NOV 24, 2020, I TOOK THE CAR TO "RICK MATHEWS GMC/BUICK DEALERSHIP" FOR DIAGNOSTIC AND REPAIR. THEY PLACED AN ORDER FOR THE PARTS NEEDED FOR REPAIR AND TOLD ME, THAT MY CAR WAS DRIVABLE. ON DEC 4, 2020, I WAS HAVING PROBLEMS WITH DRIVING ON A CITY STREET WITH THE CAR SHAKING, I WAS SCARED TO TAKE THE HIGHWAY BUT THAT WAS MY ONLY WAY HOME, AND THE LOUD ENGINE NOISE AND SHAKING CONTINUED. ON DEC 7, 2020, I TOOK MY CAR BACK TO THE DEALERSHIP AND THEY TOLD ME MY CAR WAS INOPERABLE BECAUSE THE CATALYTIC CONVERTER HAD CRACKED AND THE PARTS WERE STILL NOT AVAILABLE TO COMPLETE REPAIRS. THAT DAY THEY PROVIDED A RENTAL/LOANER VEHICLE FOR ME TO DRIVE TO WORK UNTIL THE CAR WAS REPAIRED. ON JAN 13, 2021, I HAD TO SWAP OUT VEHICLES BECAUSE THE PART WAS STILL NOT AVAILABLE TO COMPLETE REPAIRS. IT IS NOW FEB 26, 2021, AND THE DEALERSHIP HAS TOLD ME THAT MY CAR IS FINALLY BEING REPAIRED. THIS ENTIRE TIME, I HAVE CONTINUED TO PAY FOR THE MONTHLY COST OF MY PERSONAL CAR LOAN WHILE NOT BEING ABLE TO DRIVE IT. I ONLY GOT TO DRIVE MY CAR 4 MONTHS BEFORE IT WAS STUCK IN THE SHOP AND I STILL CONTINUE TO PAY FOR MY PERSONAL CAR MONTHLY. THE DEALERSHIP IS NOW ASKING ME TO PAY A "RENTAL" FEE FOR THE USE OF THEIR VEHICLE, AND IT HAS TAKEN 3 MONTHS TO FINALLY REPAIR MY VEHICLE, ALL BECAUSE THE MANUFACTURER GMC/BUICK WAS OUT OF STOCK OF A 2017 CAR PART. I HAVE TRIED TO RESOLVE THIS WITH THE MANUFACTURER AND HAVE A CASE# (SR:9-6454995176). I'VE BEEN IN CONTACT WITH THEM AND THE DEALERSHIP SINCE DEC 7, 2020.

    NHTSA complaint 11398129
20. Filed Apr 24, 2020Failure Apr 23, 2000West Union, OHElectrical system

    GEARS OF TRANSMISSION ABRUPT AND HARD CONSTANTLY FLASHING SOME KIND OF SERVICE TRANSMISSION JERKS ON AUTO STOP BEEN HAVING PROBLEMS SINCE I GOT IT STARTING AT ABOUT 10000 MILES NOW HAS 48000 MILES

    NHTSA complaint 11322162