Lane Departure Related Problems of the 2020 GMC Sierra 1500

Table 1 shows four common lane departure related problems of the 2020 GMC Sierra 1500. The number one most common problem is related to the assist (two problems). The second most common problem is related to the lane departure (one problem).

Table 1. Lane Departure related problems of GMC Sierra 1500


Recently reported Lane Departure problems of the 2020 GMC Sierra 1500

The Assist problem

1. Lane keeping assistantance: the green vehicle indicator on the dashboard will disappear and stay off while driving. When it is off, it is unsafe. 2. Parking collision warning: the front and back sensors will disappear and become nonfunctional while driving and parking.   Read details...

The Lane Departure problem

The contact owns a 2020 GMC sierra. The contact stated that while driving at speeds over 38 mph, and the lane departure warning system was activated the seat indicator did not vibrate or sound an alert as intended.   Read details...

The Warning problem

Additional information re odi 116346689: tried to report to gm using 800-462-8782 provided by you. Agent would not accept any information that I tried to provide, including year/make /model and would not confirm or deny that the issue was known by them.   Read details...


Lane Departure related problems in other GMC Sierra 1500 model year vehicles:



Sierra 1500 Service Bulletins
Sierra 1500 Safety Recalls
Sierra 1500 Defect Investigations