How do you reset maintenance light, reset service light indicator Chevrolet GMC Trucks Envoy/Trailblazer. For reset maintenance light and that can be made manually by use button on car dash board.
Reset service light indicator, engine oil life Chevrolet GMC Trucks Envoy/Trailblazer 2004-2009, oil reset instructions:
Turn the ignition to run (one position before starting engine).
Immediately after Step 1 press and release the gas pedal 3 times within 5 seconds.
If the Change Oil Soon light flashes the system is resetting.
Turn the ignition off and then start the engine to verify the indicator has been reset.