Lane Departure Related Problems of the 2025 Buick Enclave

Table 1 shows three common lane departure related problems of the 2025 Buick Enclave.

Table 1. Lane Departure related problems of Buick Enclave

Problem Category Number of Problems
Assist problems
1
Blind Spot Detection problems
1
Warning problems
1

Assist problem #1

On 7/20/2025 the following warnings were displayed: brake system warning light (brake), abs warning light, lane keep assist light is white, automatic emergency braking disabled light stayed on, traction control system (tcs) electronic stability control light stays on. Messages: auto hold unavailable, service brake assist, service esc, service stability control: your vehicle may be hard to control in certain driving conditions, schedule service soon. On page 103 in the owner's manual the warning for the brake system warning light said driving with the warning light on can lead to a crash. Have the vehicle towed for service. I had it towed to a local GMC /Buick service department. My safety and the safety of others were put at risk if the car did not brake. Could have led to a crash. The problem has been confirmed by the dealer. They indicated the brake master cylinder needs to be replaced. ( 7/28/2025 I was told it was on back order, when available is unknown) warning lamps etc have been described above. I had just pulled into the driveway of a friend and got all the warning lights.

Blind Spot Detection problem #2

The contact owns a 2025 Buick Enclave. The contact stated that while attempting to switch lanes, the blind spot indicator on the passenger’s side mirror failed to illuminate to signal a nearby vehicle or object. The failure occurred intermittently. The vehicle was taken to the dealer four times; however, the dealer was unable to determine the cause of the failure. The mirror was replaced; however, the failure persisted. The manufacturer was informed of the failure and informed the contact that the mirror was designed for the sensor to activate within a certain proximity, and if the vehicle or object was not within that range, the driver would not receive a signal. The contact was referred to the dealer, who confirmed that the indicator was working intermittently. The failure mileage was unknown.

Warning problem #3

Digital dash display is completely black. There is no display of speed, lane departure, back-up camera or parking assist/surround view camera. Neither vehicle restart nor software reset corrects the issues.


Lane Departure related problems in other Buick Enclave model year vehicles:



Enclave Service Bulletins
Enclave Safety Recalls
Enclave Defect Investigations