OnStar Overview
EmergencyExterior Lighting
The exterior lamp control is on the turn signal lever on the left side of the
steering column.
There are four positions:
Turns on the headlamps together with
the parking lamps and instrument panel lights.
Turns on the parking lamps including
all lamps, except the headlamps.
Turns the ...
Brake Assist
The Brake Assist feature is designed to assist the driver in stopping or decreasing
vehicle speed in emergency driving conditions. This feature uses the stability system
hydraulic brake control module to supplement the power brake system under conditions
where the driver has quickly and forcef ...
Ignition Positions
The ignition switch has four different positions.
The uplevel key must be fully extended to start the vehicle.
To shift out of P (Park), the ignition must be in ON/RUN and the regular brake
pedal applied.
1 (STOPPING THE ENGINE/LOCK/ OFF): When the vehicle is stopped, turn the ignition
sw ...