OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor.
To change the OnStar PIN, call OnStar and provide the Advisor with the current number.
See also:
Transmission
Driver Shift Control (DSC)
The DSC switch is located on the shift lever.
To enable the DSC feature:
1. Move the column shift lever to the M(Manual) position. The Driver Information
Center (DIC) ...
Turn and Lane-Change Signals
An arrow on the instrument panel cluster flashes in the direction of the turn
or lane change.
Move the turn signal lever all the way up or down to signal a turn.
Raise or lower the lever until t ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems. It also
checks the tire pressures, if the v ...