The light is on because there is a problem with the vehicle. Until the problem is fixed the light will remain on. Have your local auto parts store plug in a diagnostic code reader to determine what the problem may be.
How do you reset check engine light for the 2009 Chevy trail blazer?
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
It requires an engine scanner to do that.
disconnect the battery for five minutes, It will reset
I reset the check engine light on my jeep by disconnecting it from the battery.
To reset the check engine light unplug the battery for 30 minutes. If the issues still persists the light will still light up when reattached.
That REQUIRES an ENGINE SCANNER to do that.
Fix the cause of the light coming on and the light will reset itself within a few drive cycles.
How do I reset the service engine light on a 2003 Chevy Trailblazer?
I have a 2006 Chevrolet C4500 Duramax Diesel and I would like to know how to turn off or reset the check engine light on the truck.
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
Disconnect the battery for approximately two minutes.