While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position.
On all vehicles, the ignition key should come out only in LOCK/OFF.
Contact your dealer if service is required.
Automatic Transmission Shift Lock Control Function Check
Park Brake and P (Park) Mechanism CheckTransmission Indicators and Messages
The following transmission-related indicators and messages may be displayed on
the Instrument Panel Cluster (IPC). For a complete listing and description of all
vehicle indicators and messages, refer to Indicator/Warning
Message Description and Operation.
"TRANSMISSION HOT IDLE ...
Data Link Communications Description and Operation
Note: This is an overview of different serial data buses used by GM
devices to communicate with each others. Use Data Communication Schematics to
find out which serial data buses are configured for a specific vehicle.
Circuit Description
There are many components in a vehicle t ...
Timing Belt Removal
Special Tools
EN-6333 Locking Pin
EN-6340 Locking Tool
For equivalent regional tools, refer to Special Tools.
Note: The timing belt drive gear and oil pump housing must align.
Turn the crankshaft in the direction of engine rotation, by the crankshaft
balancer bolt ...