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 MANUALSHONDA2008ODYSSEY EXREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSIMMOBILIZER SYSTEMIMMOBILIZER KEY REGISTRATIONALL KEYS ARE LOST
2008 Honda Odyssey EX
All keys are lost
2008 Honda Odyssey EXSECTION All keys are lost
- Prepare all new keys and have the immobilizer PCM code from the iN system.
- Connect the HDS to the data link connector.
- Turn the ignition switch ON (II).
- Select "IMMOBILIZER" from the "SYSTEM SELECT" menu.
- Select "Add and Delete Keys", then "ALL KEYS LOST".
- Do the registration according to the instruction of the HDS screen.
- Check if the engine can be started by all the registered keys.
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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.