OnStar Additional Information

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Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them. • To mute a call, press , and then say “Mute call.” . To cancel ...

Making a Call
Calls can be made using the following commands. Dial or Call: The dial or call command can be used interchangeably to dial a phone number or a stored name tag. Digit Dial: This command allows a phon ...

Braking
Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time. Average driver reaction time is about three-fourths ...