GMC Complaints

Automatic Emergency brakes have unnecessarily or prematurely activated on 2 separate occasions causing my car to stop very abruptly which has resulted in Neck, Shoulder and back pain. I have been very lucky in the recent past and today that a vehicle was not directly behind me. The seat vibrated first when it sensed the car ahead was breaking. When I started to break, the emergency break kicked in. I did not report this the first time because I thought the car was doing what it was supposed to do. Today was unnecessary. No accident and no police report. I do plan on telling the dealership.

The contact owns a 2014 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. An undisclosed dealer was contacted and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

My truck shuts off in the middle of driving. Completely losing power to anything electric. I can not unlock or lock the door, the windows, hazard lights, steer the wheel to help me move. I can’t do anything. I have almost crashed.

The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving approximately 60 MPH and hauling a boat, the vehicle started operating at reduced power. There were no warning lights illuminated. The vehicle was taken to an independent mechanic and the contact was informed that the push rods were bent, and the lifter had collapsed. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the dealer. The failure mileage was approximately 90,000.

While towing our RV trailer the trailer brakes become disabled. This is a known problem to GM and they have a TSB (23-NA-113) "Information on Trailer Brake Disabled or DTC Stored" This is a know problem and GM solution seems to cast the blame on the trailer manufacture.

When shifting to Park the vehicle shuts down but message comes up to Shift to Park and electronics stay on. Vehicle is off but unable to exit vehicle and lock it since the Shift to Park messages keeps dinging.

When vehicle is put into park and you go to shut off the car it gives a message to shift to park. Diagnosis reveled that there is a service bulletin SB#19-NA206 which tells the mechanic to replace the the shift control assembly and add jumper harness to cure shift to park message when vehicle is turned off. Previous years of this vehicle model were covered under recall . This model year should also be under recall for this problem.

Consuming a lot of oil, makes a funny clicking noise sometimes when accelerations, had lil pieces of metal in my oil, Transmisson problems, 1 front headlight and all rear tail lights went out, trailer brake system would come on and go off now it won’t stop dinging and makes a whole bunch of other lights come on (trailer brake system, park assist, low brake fluid, traction control, collision) dings some much I can’t drive it. Called a gm shop near me and they told me it would cost a whole bunch for each diagnosis for every warning that came on.

The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 15 MPH and making a turn, the vehicle lost power steering functionality. A message indicating power steering failure was displayed. The contact stated that the steering wheel was extremely difficult to turn however, the contact was able to pull to the side of the road using physical strength to turn the steering wheel. The vehicle was taken to an unknown dealer where it was diagnosed, and the failure was linked to NHTSA Campaign Number: 14V719000 (Steering). The vehicle was taken to a GMC dealer, who informed the contact that the recall had already been completed on the vehicle. The dealer determined that the power steering control module needed to be replaced; however, the part was not available. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 85,000.

This is a known issue with GM 2016-2019 various models including my 2017 Acadia . the shift mechanism does not know that it is in Park position and so indicates "shift to park" on dashboard lights. Therefore ignition switch stays on and accessories that are on will run battery down in a couple of hours. Sometimes the engine will not cut off until you turn it on and off many times. The dealer estimates cost to fix of between $500 and $700. They want an additional $125 for diagnosis, which they already know problem. I found the Service Bulletin on it (19-NA-206) which calls for $42.43 in parts and 1.4 hrs labor. Many people are being ripped off on this problem, which should be a manufactor's recall ! They continued to use defective parts for years after they were aware of this hazard. Please HELP ! I don't think that I should have to pay for this repair!