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How do you reset the Service 4 wheel drive indicator after it has been serviced on a 02 Trailblazer?

To reset the service 4WD indicator after servicing on a 2002 Trailblazer:

- Insert the key into the ignition and turn it to the "ON" position without starting the engine.

- Press and release the accelerator pedal three times.

- Turn the ignition key to the "OFF" position.

- Wait for at least 15 seconds.

- Start the engine and let it idle for at least 10 minutes.

- If the service 4WD indicator does not reset, check the 4WD system for any faults or problems and fix them if necessary.

Note: Ensure the vehicle is in park and the parking brake is engaged before performing these steps.