First try and disconnect the battery (positive side) for about 10 minutes. If this does not work take it to a local auto parts dealer and usually they won't charge you to reset the computer. They can also tell you what codes come up. Dealer will charge usually a minimum charge of 1/2 hr shop rate.
reset engine light on 2005 Chevy Colorado 3.5 engine
How do you reset check engine light for the 2009 Chevy trail blazer?
The engine light on a Chevy Colorado can be rest by connecting an OBD II reader to the interface port under the dash. Each code can then be reset which will disable the dash light until the error is detected again.
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
It's in the left engine compartment.
If the check engine light is blinking that means an engine cylinder misfire has been detected
The check engine light on a Chevrolet Colorado can be rest by connecting an OBD II code reader to the vehicle's computer . Each of the codes can then be reset which will turn the associated light off.
Check
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle.
It requires an engine scanner to do that.
No, only a problem that effects emissions will set the check engine light.
I have an 06 Colorado and there was a recall on them for that. Might be something to check into.