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To reset the service engine light on a 2003 Chevy Trailblazer, you can use an OBD-II scanner to clear the trouble codes. Alternatively, you can disconnect the negative battery cable for about 15 minutes to reset the system. After reconnecting, ensure that the light is off; however, if it reappears, it indicates an underlying issue that needs addressing. Always consult a mechanic if you're unsure about the cause of the light.

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3mo ago

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How do you reset service engine soon light on 2003 Chevy trailblazer?

How do I reset the service engine light on a 2003 Chevy Trailblazer?


How do you reset service engine soon light in Chevy Trailblazer?

Get the Trouble code read then have it reset at the same time. You can also disconnect the negative battery terminal for 10 minutes and it will reset. If you have not fixed the problem the code will set again causing your check engine light to come back on.


How do you reset service engine soon on a 2002 Chevy trailblazer?

A code reader that can plug into car's diag port can reset it, there is no point resetting anyway without repair or it comes back on and could be something serious so find out what the problem is.


How do you reset the computer on a Chevy Trailblazer?

disconnect the battery


How do you reset check engine light soon on 2003 Chevy 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


How do you reset service engine light soon on a 2002 Chevy trailblazer?

A code reader that can plug into car's diag port can reset it, there is no point resetting anyway without repair or it comes back on and could be something serious so find out what the problem is.


Is it required to reset the computer PCM when changing the battery on a 2003 Chevy Trailblazer LS?

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.


How do you reset the computer on 2006 Chevy Trailblazer?

How do you reset the computer in a 04 blazer 4.3L


How do you reset service engine light on a 1998 Chevy Astro?

disconnect the battery for 1 minute and it will reset.


How yo reset service engine soon light on Chevy cavalier .?

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How do you reset the change oil light on a 2004 Chevy Trailblazer?

AnswerIgnition on - engine off - floor the gas pedal 3 times. That's it!


How do you reset the service engine soon light on a 1998 Chevy S-10?

I reset the check engine light on my jeep by disconnecting it from the battery.

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