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How do you reset the change oil light on a 2002 Chevy Trailblazer?


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2015-07-15 19:04:59
2015-07-15 19:04:59

Turn the ignition to the "ON" position without starting the vehicle. Press the gas pedal in 3 times, holding it in for 2 seconds each time. When the "Change Oil" light flashes, start the vehicle.

take the neg battrey treminal off for like an hr

Make sure the car is off. Turn the car on (not started, but "on") and IMMEDIATELY hit the gas pedal three times. I know it sounds pretty stupid, but that's how you do it. You may not get it the first time, so you may have to turn the car off, then on again.


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How do I reset the service engine light on a 2003 Chevy Trailblazer?

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AnswerIgnition on - engine off - floor the gas pedal 3 times. That's it!

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When you change the battery you automatically reset the PCM. Any time you remove the negative battery cable for about 15-20 minutes you will reset the PCM. This will reset your Check engine light also. Trailblazer enthusiasts forum with all the answers for your Trailblazer.

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If you don't have a code reader you can disconnect the battery cable for a couple of minutes and that will reset the light

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