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.
Manual Coding
If version code number cannot be read, vehicle equipment and version must be determined. A corresponding code number must be obtained from spare parts microfiche and manually entered with HHT. Version coding data for each CM is different, following data is typical of information needed for coding:
- Vehicle model.
- Country version.
- Convenience feature.
- Remote trunk release.
- Lock confirmation via blinker lights.
- Engine displacement.
- Transmission code.
- Non-catalytic converter or three-way catalyst equipped.
- 19 MPH (30 km/h) limitation.
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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