You must have a 0BD II engine scanner to do that.
There is a problem in the emission system that made it come on in the first place. So you will need to scan engine and read the trouble code / codes and then repair the problem, are when you clear the codes / turn light off it will just come back on again if problem is not fixed.
That REQUIRES an ENGINE SCANNER to do that.
You use a scan tool after repairing the cause of the code that turned the light on.
How do I reset the service engine light on a 2003 Chevy Trailblazer?
It requires an OBDII engine scanner to reset the light. If you don't fix the problem that made it come on, then it will not do any good to turn it off. You need to have the engine scaned to see why it came on to start with.
How do you reset check engine light for the 2009 Chevy trail blazer?
battery dicunnect for 3 min. or take to auto parts store and have cleared
key on engine off press accelerator pedal to the floor five times very rapidly should reset
when you disconnect your battery and reconnect it will reset cumputer
You must first find out what caused it to come on and that will REQUIRE an engine scanner. After you have scanned the engine and read the engine codes and then repaired the problem. You will be able to turn the light off with the scanner.
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
Turn the ignition set to on without starting the engine. Press the gas pedal three times in quick succession and watch for battery light to flash three times, when it does, it is reset.
That requires an OBDII engine scanner.