Four-Wheel-Drive Light

For vehicles equipped with the four-wheel-drive light, it comes on when a vehicle with a manual transfer case is shifted into four-wheel drive and the front axle engages.
Some delay between the shifting and the light coming on is normal.
See Four-Wheel Drive on page 9‑43 for more information.
See also:
Introduction
The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, GMC, the GMC Truck Emblem, and SIERRA are ...
Retrieve My Number
1. Push X. System responds: “OnStar ready.”
2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...
Cooling System
2.4L L4 Engine
A. Engine Cooling Fan (Out of View)
B. Engine Coolant Surge Tank and Pressure Cap
3.0L V6 Engine
A. Engine Cooling Fans (Out of View)
B. Engine Coolant Surge Tank and Pressure ...





