2002 GMC Sierra Service 4WD Light

2002 GMC SIERRA
100,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
JOEL.S.HOLMES
  • MEMBER
  • 1 POST
My GMC 2002 Sierra has the service 4WD light on. The truck moves in Auto 4WD, 4WD HI, and 4WD Lo, but will not move in 2WD HI. the truck is rarely in 4WD anything and allways in 2WD. Please Help.
Apr 4, 2010 at 6:44 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Have you had the computer scanned?
Apr 4, 2010 at 4:14 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle