Question about 2003 Chevrolet TrailBlazer

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The battery light came on my trailblazer.

Also it displays battery not charging on the console. I charged the battery, but still displays 'battery not charging'

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  • Anonymous Apr 01, 2014

    The old battery charges ok light stays on when charged

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  • 362 Answers

You need to have the charging system tested before your vehicle leaves you stranded. The battery could be the victim.

Posted on Mar 05, 2009

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2006 chevy trailblazer is not charging battery. battery and alt are new


Volts slowly drop to where what quits ,The vehicle stops running ? Is the charge indicator light lit on the instrument cluster /? are any lights lit on the instrument cluster ? The instrument panel cluster (IPC) illuminates the charge indicator and the BATTERY NOT CHARGING message is displayed in the message center when the following occurs:
The engine control module (ECM)/powertrain control module (PCM) detects that the generator output is less than 11 volts or greater than 16 volts. The IPC receives a serial data message from the ECM/PCM requesting illumination.


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The IPC determines that the system voltage is less than 11 volts or greater than 16 volts. The IPC receives a serial data message from the body control module (BCM) indicating the system voltage.


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The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.


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The ignition is on, with the engine off

Mar 11, 2015 | 2006 Chevrolet Trailblazer

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Reduce Engine light on; battery light on; low charge from charging system; vehicle won't run faster than 30 mph


You may have damaged the ECM with a power surge from shorting out the alternator. Try to reset the CPU program using a code reader and look for fault codes while you are at it

Jan 26, 2014 | 2004 Chevrolet TrailBlazer

1 Answer

Battery not charging light on


YES ! ALSO CHECK BELT @ ALTERNATOR, TIGHT ?

Mar 15, 2013 | 2002 Chevrolet TrailBlazer

1 Answer

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If your battery charge light is on and your car is dying after u have already have it running u need a new alternator. If it stays running after started but it will not start again unless jumped you need a new battery.

Dec 28, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

2002 trailblazer battery


sounds like ur altinator is bad

Feb 14, 2010 | 2002 Chevrolet TrailBlazer

2 Answers

2004 Chevy Trailblazer is locked up, cant even get it out of gear.What do I do??


you may start finding a good mechanic and have your transmissions check, be ready for a transmission replacement. hope this helps

Jul 09, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

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Its the alternator for sure. this display light is directly wired to the alternator.

Mar 07, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

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start put volt meter on batt. should be between 13-15.5 volts if not alt. could be defect,if no meter pull neg. cable off batt. while its running be carefull! not to touch anything with cable, if truck stalls,alt,is probably defect!

Mar 07, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

Changed belt on 02 trailblazer now it won't start


Belt turns alternator, alternator charges battery.(no belt, no charging) Charge battery with a charger. Though it may start with a jump, the alt is designed to maintain the state of charge in the battery, not to fully charge it . Therefore jumping puts too much demand on alt and can damage it. or will shorten battery life considerably.

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1 Answer

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have your alternator checked if your battery was weak for a while this would put big strain on your alternator .chances are your alternator is not charging.

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