with the vehicle off...turn key switch to run and slowly press gas pedal in 3 times in less than 5 seconds
How do I reset the service engine light on a 2003 Chevy Trailblazer?
disconnect the battery
How do you reset the computer in a 04 blazer 4.3L
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.
AnswerIgnition on - engine off - floor the gas pedal 3 times. That's it!
i had the same thing happen to me and simply had it hooked up to a diagnostic and reset the codes and it fixed it apparently a sensor had malfuntioned and was not communicating with the computer
The best and fastest way to reset the instrument panel of 2004 Trailblazer is to disconnect both battery terminals. Reconnect them after about 30 minutes and everything should be reset.
Turn ignition key to "run" (don't start) and press the gas pedal 3 times within 5 seconds.
Press and hold the enter/select button for 3 sec. until it resets.
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
remove negative and positive cables from battery, touch cables together for 30 seconds and then reconnect.....will be reset.
Lock the truck with remote then unlock truck manually with key