I clear the check engine light with a Scangauge II. But most ODB-II devices can read and clear the code.
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.
How do you reset check engine light for the 2009 Chevy trail blazer?
May have to change oil.
If you mean the 'Check Engine' light it's on the instrument cluster on the left side near the engine coolant guage.
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
If the check engine light is blinking that means an engine cylinder misfire has been detected
Be sure the dash light dimmer switch is not turned off. Check the fuses.
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.
A flashing check engine light is an indication of a misfire.