The contact owns a 2018 Buick Enclave. The contact stated that while idling or at a complete stop, the vehicle lunged forward upon acceleration. The contact then stated that while shifted to park, the vehicle inadvertently started. The contact also stated that she heard a screeching sound in the wheels while shifting in the first gear, and intermittently in second and third gear. Additionally, the contact stated that the check engine warning light was previously illuminated; however, after driving the vehicle, the check engine light turned off. The vehicle was taken three times to the dealer where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the warranty was not honored, and no assistance was provided. The failure mileage was 125,639.

- Maywood, CA, USA

The car has an auto-stop feature however at times, when the car is stopped, the entire electrical and engine shuts down even while the car is in drive. The driver must restart the car and put the car into park and then back into drive. When the car restarts, several lights/messages turn on including "Service Transmission" and the "Service Parking Brake" message and parking break light. This is a safety and hazard issue as it has happened while in traffic on the freeway when at a standstill.

- San Jose, CA, USA

While at a stop sign at a busy intersection, pressed brake and tachometer went to off instead of auto-stop. Engine still on but pressing gas didn't do anything.. transmission light went on. Had to push the start/stop button a few times before engine turned off and on again.

- San Jose, CA, USA

Shortly after getting gas, the car will rev to 2-3rpm when lightly accelerating, and seem to "run rough". then, after coming to a stop at a traffic light, the car will auto stop and then shift into neutral. I can not shift back into drive without pushing the start/stop button to restart the car. It does not happen every time I get gas, but all 3 times it has happened have been after getting gas. The first 2 times it happened, I was told there was a recall, which was the cause, but this last time, there was no recall, and they said there were no error codes, so they do not know what is wrong. The car stalling episodes occurred in August 2019, September 2019, and February 2020. It may or may not be related, but in October 2019, there were also 2 instances of an "evap leak" that were fixed.

- Tallahassee, FL, USA

During normal commute, vehicle began bucking badly, would not accelerate and began rolling backwards. Check engine light illuminated. Shut vehicle down, restarted, and the problem seemed to clear. Brought vehicle to dealership, found codes P0011, P0014, P0021 and P0024 set. Dealership contacted GM, who acknowledged the issue but offered no fix. They are still studying the issue and have no resolution. Dealership cleared codes and released vehicle back to us. Issue may return at any time. How can I trust my family in a vehicle that may suddenly, without warning, begin bucking, stop accelerating and cause an accident? this is an unsafe condition that GM needs to address. I am disappointed that they have no resolution. Dealership referenced bulletin pip5569E, so GM acknowledges the issue. I found references from almost a year ago to this issue via google - that's very disconcerting that, in this time, GM cannot identify a fix.

- Parsippany, NJ, USA

The "start stop" feature caused a life threatening hesitation upon acceleration from a full stop at an intersection. Enclave does not offer any override for this option. There must be a firmware update provided by GM to allow it to be disabled!!! this is going to kill somebody!!!

- Kansas City, MO, USA

2018 Buick Enclave. Consumer writes in regard to engine shuting down when vehicle stops. The consumer stated the start stop feature intermittently shuts down the engine when the vehicle is idle and does not recover quick enough for safe starts in traffic.

- Bay City, MI, USA

The contact owns a 2018 Buick Enclave. While the vehicle was at a stop, it stalled and hesitated to move. The contact stated that the automatic stop feature on the vehicle caused the failure. The vehicle was taken to cannon Chevrolet Buick Cadillac (100 N thacker loop, oxford, ms 38655, (662) 550-4208) where the contact was informed that the vehicle was built with the automatic stop feature and there was no remedy to repair the failure. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that there was no remedy. The failure mileage was approximately 3,500. Consumer stated the engine auto stop feature causes engine to go dead every time I come to complete stop. Engine starts after break is released. On 9/22/18 engine stopped while crossing a 4 lane highway. Updated 10/26/18

- Oxford, MS, USA