To reset the engine light in a 2008 Chevy Cobalt, you can disconnect the battery by removing the negative terminal for about 15 minutes and then reconnecting it. Alternatively, you can use an OBD-II scanner to clear the trouble codes that triggered the light. If the underlying issue is not resolved, the light may turn back on, so it's important to diagnose and fix any problems first. Always ensure the vehicle is off before working on the battery.
Fix the cause of the light coming on and the light will reset itself within a few drive cycles.
2008 Chevy cobalt tpms reset
Scan tool
How do I reset the service engine light on a 2003 Chevy Trailblazer?
First you must fix the problem that caused the light to be set. You can try to reset the light by disconnecting the negative battery cable for five minutes. If that does not work you will need an 0BD2 scanner in order to reset the light.
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.
I reset the check engine light on my jeep by disconnecting it from the battery.
It requires an engine scanner to do that.
disconnect the battery for five minutes, It will reset
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.
disconnect the battery for 1 minute and it will reset.