Cold start after vehicle sits for a while vehicle shark bites and stutters. When you try and drive vehicle before it-€™s been warmed up significantly. It-€™s a safety concern because it feels very danger and could cause an accident. Alamo At caused my truck to stall out the other day with my children in it and a large accident. Dealership is dismissed my concern and says it-€™s normal gmc defects that I have to deal with. I will sue GMC if I have to.

- Mashpee, MA, USA

. the engine mounted mechanical vacuum pump may decrease over time decreasing the amount of vacuum/ power brake assist, causing vehicle not to stop. Same as my 2016 GMC. I had to also have the ( evap control valve replaced). Transmission surges and on the down shift its knocking coming tyo a stop..in my rear ending a parked vehicle because of the brakes pulsating and not stoping scared me..dealership..dealership.no

- Bellville, TX, USA

The vehicle was in motion on a city street, when the vehicle completely powered off. The steering wheel locked. This occurred on 11/22/2020 and 11/23/2020. The following message is on my dashboard 'steering assist is reduced drive with care.'

- Salinas, CA, USA