Voice Recognition
The voice recognition system uses commands to control the system and dial phone numbers.
Noise: The system may not recognize voice commands if there is too much background noise.
When to Speak: A tone sounds to indicate that the system is ready for a voice command. Wait for the tone and then speak.
How to Speak: Speak clearly in a calm and natural voice.
See also:
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 ...
Trailer Towing
If the vehicle has a diesel engine, see the Duramax diesel supplement for more information.
If the vehicle is a hybrid, see the hybrid supplement for more information.
Do not tow a trailer during br ...
Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to 10 minutes after the engine is turned off:
• Audio System
• Power Windows
• OnStar System (if equipped)
• Sunroof (if equipped)
The ...





