OnStar
Keys and LocksAutomatic Transmission Shift Lock Control Description and Operation
The automatic transmission park lock control system is a safety device that prevents
an inadvertent shift out of PARK. The driver must press the brake pedal before moving
the park lever out of the PARK position. The system consists of the following components:
The automatic transmission pa ...
Drive Range, First Gear (Gen 1)
As the vehicle speed increases, the transmission control module (TCM) receives
input signals from the automatic transmission input and output speed sensors, throttle
position sensor and other vehicle sensors to determine the precise moment to deenergize
or ?urn OFF?the shift solenoid, and to c ...
Transmission Disassemble (Gen 2)
Special Tools
3-9506289 Universal Adapter
R-0007758 Holding Fixture
S-9407198 Differential Bearing Race Wrench
For equivalent regional tools, refer to Special Tools.
Attach R-0007758 holding fixture (2) to the transmission.
Attach R-0007758 holding fixture (2 ...