Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2009UPLANDER LT, 3.9 MREPAIR AND DIAGNOSISBODY & FRAMEIGNITION SWITCH/STEERING LOCKIMMOBILIZERREPAIR INSTRUCTIONSTHEFT DETERRENT MODULE REPLACEMENTREMOVAL PROCEDURE
2009 Chevrolet Uplander LT, 3.9 M
Removal Procedure
2009 Chevrolet Uplander LT, 3.9 MSECTION Removal Procedure
- Disable the SIR. Refer to SIR Disabling and Enabling .
- Remove the trim covers. Refer to Steering Column Trim Covers Replacement .
- Remove the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement .
- Remove the theft deterrent module (TDM) wiring harness from the steering column harness.
- Disconnect the electrical connector.
- Pull the TDM (2) away from the lock cylinder housing (1).
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.