Two problems related to front seat power adjust have been reported for the 1999 GMC Sierra. The most recently reported issues are listed below.
: the contact stated while stopping the vehicle, both front seats move forward/backwards a quarter of an inch. The dealership determined the entire seat assembly needs to be replaced. Updated 5/10/2006 - the power seat track on both front seats were loose.
While approaching a stop sign at approximately 20 mph, the driver side seat adjustment broke free and the seat slid forward. Because of the anchorage of the seat belt being the seat itself, nothing held me back from contact with the steering wheel. Fortunately this happened at a low rate of speed. I am in the process of seeking reimbursement for repair cost in the amount of $513. 11 from gm who would not cover the repair because the vehicle is out of warranty.
| Seats problems | |
| Seat Broken problems | |
| Front Seat Recliner problems | |
| Front Seat Power Adjust problems | |
| Front Seat Head Restraint problems | |
| Mid/rear Seats Assembly problems |