GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1999
🢒
GMC C Pickup - 2WD
🢒
Body and Accessories
🢒
Seats
🢒 Power Seat Adjuster Horizontal Chuck or Looseness
Problem
Action
The seat adjuster carriages are out of alignment or worn.
Inspect the transmission assembly.
Replace the transmission assembly if necessary.