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.
2012 Chevrolet Cruze L4-1.8LFACTORY OEM SERVICE PROCEDURE
Transmission Position Sensor/Switch: Service and Repair
Manual Shift Detent Lever with Shaft Position Switch Assembly Replacement
Special Tools
DT-41229 - Manual Shaft Pin Installer
For equivalent regional tools, refer to Special Tools 6T30/6T40/6T45/6T50 - Automatic Transmission.
Removal Procedure
1. Remove the control valve body. Refer to Control Valve Body Replacement Control Valve Body Replacement.
2. Remove the manual shaft detent lever hub pin (1) using a pry bar and pliers.
3. Remove and DISCARD the manual shift shaft pin (5).
4. Remove the manual shaft (2).
5. Disconnect the actuator rod (3) from the detent lever assembly. Do not remove the actuator rod from the transmission case.
6. Remove the manual shaft detent (with shift position switch) lever assembly (4).
Installation Procedure
1. Connect the actuator rod (3) to the detent lever assembly.
2. Install the manual shaft detent (with shift position switch) lever assembly (4).
3. Install the manual shaft (2).
4. Install the manual shaft detent lever hub pin (1) to height of 7.9 mm (0.38 in) (b).
Caution: Use J 41229 to install the manual shaft pin at the correct height in order to properly secure the manual shaft. If you install the pin too deep, the case bore may crack.
5. Install the NEW manual shift shaft pin (5) using DT-41229 - pin installer. Use a NEW pin to ensure proper engagement with the case.
6. Inspect pin installed height is within 7.2-8.2 mm (0.28-0.32 in) (a).
7. Install the control valve body. Refer to Control Valve Body Replacement Control Valve Body Replacement.
8. Perform the transmission adaptive values learn procedure. Refer to Transmission Adaptive Values Learn Programming and Relearning.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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