You must first get the code read and find out what made it come on. Then the code can be errased at the same time with the code reader. If the code was an anomalie then the light will go out after 3 or 4 drive cycles.
How do I reset the service engine light on a 2003 Chevy Trailblazer?
With a scan tool.
can you tell me why my 1999-2000 Chevy trailblazer light is on
When service engine light is on on a 2003 Chevy Trailblazer, the problem could be a faulty thermostat, a circuit range performance problem, or any other problem.
picture of engine
Why? Just reset it.
In US it says "SERVICE ENGINE SOON" in Canada it looks like an engine.
That requires an OBDII engine scanner.
The diagnostic code 410, on your 2004 Chevrolet trailblazer, is a reference to a vacuum hose problem. Check the vacuum hoses to make sure they are all connected.
With a code reader. Have your local auto parts store read the code(s). They provide this service for free.
key on engine off push gas pedal to the floor three times wait for it to flashthen your done
Have vehicle scanned to determine the problem and have codes cleared