See also:

Hands-Free Calling
1. Push . System responds: “OnStar ready.” 2. Say “Dial.” System responds: “Please say the name or number to call.” 3. Say the entire number without pausing, including a “1” and the ...

Tow/Haul Mode Light
This light comes on when the Tow/Haul mode has been activated. For more information, see Tow/Haul Mode on page 9‑26. ...

Engine Overheating
If the vehicle has the Duramax® Diesel engine, see the Duramax Diesel Supplement for more information. The vehicle has several indicators to warn of engine overheating. There is a coolant temperatu ...