Just turn the ignition key one click forward and press the gas pedal 5 or 6 times should do it
How do I reset the service engine light on a 2003 Chevy Trailblazer?
AnswerIgnition on - engine off - floor the gas pedal 3 times. That's it!
When you change the battery you automatically reset the PCM. Any time you remove the negative battery cable for about 15-20 minutes you will reset the PCM. This will reset your Check engine light also. www.trailvoy.com Trailblazer enthusiasts forum with all the answers for your Trailblazer.
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
Key on engine off, press gas pedal to the floor three times, cycle key off and back on.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
The check engine light has nothing to do with an oil change. The check engine light is reset with a scan tool after repairing the failure that caused it.
The check engine light does not come on for an oil change.
The check engine light has nothing to due with an oil change.
The check engine light does not come on when an oil change is due. The check engine light is for an emissions related failure. It is reset with a scan tool after the fault is repaired.
The service engine soon is the same as a check engine light. It has nothing to do with an oil change.
Alot of times your local auto parts store will have free check engine light reader. Make sure you attend to the problem if one exsists but they should be able to reset it for you at no charge (Autozone for example). Not sure with the trailblazer but sometimes if you disconnect your battery for a hour or so it will reset the computer. Auto part stores scan for CEL (check engine light). The service light is different. It usually means your vehicle has hit a set number of miles for a certain service recommended by the manufacturer. I'm not sure about the trailblazer, but my silverado has a reset procedure. Turn key on, pump gas pedal 5 times, when the light flashes press the odometer reset button. Trailblazer might be different, but probably something close.