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:
Overheated Engine Protection Operating Mode
If an overheated engine condition exists and the ENGINE POWER IS REDUCED message displays, an overheat protection mode which alternates firing groups of cylinders helps to prevent engine damage. In th ...
Engine Compartment Overview
5.3 L V8 Engine Shown (4.3 L V6 Engine, 4.8 L V6 Engine, 6.0 L V8 Engine, and
6.2 L V8 Engine Similar)
A. Engine Air Cleaner/Filter on page 10‑17.
B. Coolant Surge Tank and Pressure Cap. S ...
Vehicle Messages
Messages are displayed on the DIC to notify the driver that the status of the
vehicle has changed and that some action may be needed by the driver to correct
the condition. Multiple messages may a ...