While driving at highway speed, Service Traction Control/Stabilitrak warning comes on. Vehicle slows and if driver attempts to accelerate (using accelerator pedal), it causes severe lurching of vehicle. This makes the vehicle basically undrivable while in the middle of traffic. You must use emergency measures to pull over (potentially across multiple lanes) off the road and while trying to do that, you are in a very high risk state of being hit. The problem is reproduceable. The manufacturer and dealer service centers are aware of this problem and it has been reported by many owners of GM vehicles since at least 2010. Search the internet and you will find hundreds of incidents being reported.

- West Newbury, MA, USA

We had truck since new. We have consistent suspension problems including struts and bushings. The parts were designed for car and not heavy SUV. This could result in accident if not repaired as involves steering and direction. We have also had the brake booster replaced 5 times to date. It starts squeaking. GM has said it will not effect the brake but they cannot lubricate or repair unless replaced. This also effects other GM trucks on same lambda platform including acadia and traverse.

- Margate, FL, USA

The contact owns a 2015 Buick Enclave. The contact stated that while stopped at a traffic light the engine shut off and the vehicle would not move forward. The engine rpms revved up with several warning lights illuminated. The vehicle restarted after an hour with no further issues. The failure recurred six times. The dealer (jerry's automotive Inc, 501 E 25th St, baltimore, md 21218 and anderson Buick GMC 10125 york rd, cockeysville, md 21030 (443) 578-4924, were contact by phone and stated the issue was cause by the brake booster and master cylinder malfunction. The vehicle was not repaired. The contact was informed by the manufacturer that the warranty had expired. The failure mileage was 48,000.

- Baltimore, MD, USA

The contact owns a 2015 Buick Enclave. While the vehicle was in neutral, it suddenly accelerated at a high speed. The contact stated that the accelerator pedal became stuck in position. The contact attempted to apply the brakes; however, the vehicle failed to stop. The contact applied the emergency brake and the passenger turned off the ignition. The contact drove the vehicle home. While driving to luther brookdale Chevrolet (located at 6701 brooklyn blvd, brooklyn center, mn 55429, 612-326-3850), the failure recurred. The dealer was unable to determine the cause of the failures. The vehicle was not repaired. The manufacturer was not made aware of the failures. The VIN and failure mileage were unknown.

- Columbia, MN, USA

Intermittent different levels in break pedal travel. At times my car stops normally when the brake pedal is first pressed (about 2 inches). Other times the brake pedal travel is much greater (about 4 inches or more), and the pedal has a spongy feel. I have taken the car back to Buick numerous times, and they state they can not find any problem. This is a very serious problem, especially at highway speeds, where I am never sure I will be able to stop the car in time to avoid an accident.

- Brooklyn, NY, USA

While driving a sensor came on for staiblitraks and no all wheel drive mode was disabled and ABS came on. Car started to jerk or lunge forward numerous times, until car got up to speed. After I shut the car off and my wife & son who was in a bowling tournement, we came out and started the car and I noticed that when I put the brakes on at first there wasn't any till I started moving.

- Lockport, NY, USA

Tuesday, 7/18/2017. I was coming over a small decline on local road in East brunswick, NJ. I applied the brakes and came upon the traffics light and traffics ahead and the vehicle shot foreword. Applying the breaks had no effect. In fact the car appeared to accelerate. I did not have enough time to avoid hitting the vehicle in front of me which caused that vechile to hit another. My vehicle accelerated vs braking when applying the brakes. Applying the brake had no or little effect in slowing the vehicle. Is there, or has there been, reports of similar problems with acceleration problems with the Buick Enclave, 2015 model ?.

- East Brunswick, NJ, USA

On two separate occasions all four vehicle brakes locked up while the vehicle was in motion. The first time was in a neighborhood and the vehicle was coming to a stop at a stop sign when the rear brakes locked and would not release. The vehicle was shut down for an extended period and then was able to be moved a short period. The brakes unlocked after sitting overnight. The local dealership serviced the vehicle and said the brake system was out of calibration. Two days later all four brakes locked while driving down a industrial area street. The vehicle was able to be forcibly moved off the roadway where it sat from two hours awaiting a tow. An ABS system malfunction was blamed for this failure and resulted in a very costly repair, not covered by the manufacturer.

- Pensacola, FL, USA

On Thursday, 7/26/2018, I had parked my car in a restaurant parking lot. I appear to have pulled the vehicle up onto a concrete space divider. When I tried leaving the restaurant, I couldn't back off of the space divider, the car wouldn't move backward, so I tried pulling foreword. When the car came free from the divider, it shot foreword. Applying the breaks had no effect. In fact the car appeared to accelerate. I was headed directly toward a concrete building, so to avoid hitting the building head on, I had just enough time to turn the steering wheel slightly causing the vehicle to side swipe the building but it crashed into two parked vehicles. It caused extensive damage to my vehicle and one of the parked vehicles and only slight damage to the third. It appeared that the vehicle accelerated beyond the effort I applied to the gas pedal, it ran away and the application of the brakes had no or little effect in slowing the vehicle. Is there, or has there been, reports of similar problems with acceleration problems with the Buick Enclave, 2015 model ?

- Radcliff, KY, USA