Shift Interlock Solenoid: Service and Repair

SHIFT LOCK CONTROL SOLENOID REPLACEMENT

Removal Procedure

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

Caution: For Vehicles equipped with OnStar (UE1) with Back Up Battery:
The Back Up Battery is a redundant power supply to allow limited OnStar functionality in the event of a main vehicle battery power disruption to the VCIM (OnStar module). Do not disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than OFF. Retained accessory power (RAP) should be allowed to time out or be disabled (simply opening the driver door should disable RAP) before disconnecting power. Disconnecting power to the OnStar module in any way while the ignition is On or with RAP activated may cause activation of the OnStar Back-Up Battery (BUB) system and will discharge and permanently damage the back-up battery. Once the Back-Up Battery is activated it will stay on until it has completely discharged. The BUB is not rechargeable and once activated the BUB must be replaced.






1. Disconnect the negative battery cable.
2. Remove the floor console. Removal and Replacement
3. Disconnect the wiring harness connectors from the shift control lever.






4. Loosen the control cable adjusting nut.
5. Disconnect the control cable from the shift control lever assembly.






6. Remove the shift control lever assembly mounting bolts.
7. Remove the shift control lever assembly.






8. Remove the two shift lever control knob retaining screws, the then knob from the assembly.
9. Carefully remove the shift select cover from the lever assembly.






10. Remove the shift lock solenoid retaining screws.
11. Remove the solenoid from the assembly.

Installation Procedure

1. Install the shift lock solenoid on the assembly.






2. Install the shift lock solenoid retaining screws.
3. Carefully install the shift select cover to the lever assembly.
4. Install the shift lever control knob, then the retaining screws.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.






5. Install the shift control lever assembly and mounting bolts.

Tighten
Tighten the shift control lever assembly mounting bolts to 8 Nm (71 lb in).






6. Connect the control cable to the shift control lever assembly.

7. Tighten the control cable adjusting nut.

Tighten
Tighten the control cable adjusting nut to 8 Nm (71 lb in).






8. Connect the harness connector.
9. Adjust the control cable. Adjustments
10. Install the floor console. Removal and Replacement
11. Connect the negative battery cable.