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Originally Posted by nando_bu
My wifes 2003 trailblazer has 7700 miles on it. The Service Engine Light just came on. The oil has been changed and tires rotated and balanced. The oil light is fine no problem with this. Does anyone know how to reset the Service Engine Light. Thanks
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VERY SIMPLE
1. Turn key to the "on" position but don't start car
2. Pull the PCM BAT and PCM IGN fuses in engine compartment
3. Wait approximately 5 minutes
4. Turn ignition off
5. Replace fuses
6. Start the car and the make sure the light has went off