Chevrolet’s Change Oil Light Reset on Trailblazer:
- Turn ignition switch to ON position with engine off
- Fully depress and release the accelerator pedal 3 times within 5 seconds of turning key
- Change Oil lamp will flash for 2-10 seconds while it resets
- Once it stops flashing, the maintenance light reset is complete
- Turn key to OFF position and then start engine to verify indicator is no longer illuminated
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