OnStar
Keys and LocksBrake Assist System Description and Operation
System Component Description
The brake assist system consists of the following:
Brake Pedal
Receives, multiplies and transfers brake system input force from driver.
Brake Pedal Pushrod
Transfers multiplied input force received from the brake pedal to the
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Battery Inspection/Test
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic
procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic
catego ...
Engine Coolant Thermostat Housing Installation
Caution: Refer to Engine Coolant Thermostat Housing Caution.
Clean sealing surface.
Install a NEW engine coolant thermostat housing seal.
Install the engine coolant thermostat housing (2).
Caution: Refer to Fastener Caution.
Note: Screw in the 4 ...