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 Sonic L4-1.8LFACTORY OEM SERVICE PROCEDURE
Vehicle Speed Sensor: Service and Repair
Vehicle Speed Sensor Replacement
Removal Procedure
1. Disconnect the speedometer speed sensor electrical connector.
2. Remove the speedometer housing retaining bolt (2).
3. Remove the speedometer-driven gear (1).
Installation Procedure
1. Coat the O-ring with transmission fluid.
2. Install the speedometer-driven gear (1).
Caution:
Refer to Fastener Caution Fastener Caution.
3. Install the speedometer housing retaining bolt (2) and tighten to 4 Nm (35 lb in).
4. Connect the speedometer speed sensor electrical connector.
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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