Battery problems
Battery: It accumulates the electrical energy generated by the alternator. It provides energy to all the electric and electronic circuits of the car.
Read more
How to test your Trailblazer‘s battery, step by step
How do I start my Trailblazer with a dead battery?
More specific problems:
Related problems:
See owner's manual
Top problems
The battery light stays on after turning it off. Everything is good.
Chevrolet Trailblazer 2003 V6 263594 miles
The battery light stays on after turning it off. Everything
1
2 reports
JO
I have a similar problem from time to time, and the solution was to complete the rotation cycle in the ignition key completely. Whenever I remove the key without completing the complete rotation limit of the keyholder, the battery light remains lit. So make sure you turn your key all the way till the back to end. If the issue still exsist then there might be loose contact in the ignition itself.
Vote helpful
CommentHad VVT issue, replaced. Battery is fine. Now it won’t start.
Chevrolet Trailblazer 2002 Lt 260000 miles
VVT went bad, changed it, battery is fine, now it won’t start it ran right after part was changed. Someone suggested neutral safety switch. What could the problem be?
The battery light stays on after turning it off. Everything is good.
Chevrolet Trailblazer 2003 V6 263594 miles
The battery light stays on after turning it off everything is good
1
2008 chevy trailblazer has not electical activity when you try to star
Chevrolet Trailblazer 2008 chevy trailblazer 9788 miles
The car has no electrical activity, the key is stuck in the ignition, and the gear shift will not move. The battery is brand new, and the connectors are tight and in place. You can turn the key forward but the car will not start, and nothing takes place when you turn the key and you cannot remove the key from the ignition. The windows will not up or down and the automatic locks do not work. Which fuse do I need to check or what might the problem be. Thank you in advance.
9 reports
CommentWon’t start
Chevrolet Trailblazer 2004 Trailblazer 4.3 LT 156000 miles
Won’t start or turn over even with a good battery no clicking nothing
4 reports
Allegedly Alternator
Chevrolet Trailblazer 2023 Rs 55000 miles
My car only has 55k/miles. One day it starting saying battery saver on. Eventually the car just died. I had ot checked and was deemed the alternator was th culprit. No one had those part available then the proce for when it will be available was over $1800, crazy. Now it has been released and can be purchased at local part stores but im wondering if that is the problem for sure. We replaced the battery. It drove less than 10miles and then died again the same way. I cant even open the trunk. My car has been sitting aince 2/2025. Any insight??
The theft lock light goes on
Chevrolet Trailblazer 2005 LS 195788 miles
The car won’t start for a little after the theft lock light goes on and it also happens while driving all the lights goes off and the car won’t even unlock either and the battery meter goes down on the odometer.
Oil leak maybe
Chevrolet Trailblazer 2004 V6 179000 miles
So, my check gauges light came on oil light was moving low to high. I checked I didn't see oil I went to get it changed guy said low to no oil wth. I was due for an oil change the 20th but it broke down fuel pump went out. So now he says oil is under the vehicle parts? Why what? I never had a leak b4. Strange. I'm keeping an eye on it but need to get that looked at. Smh just spent $700+ plus to get fuel pump & battery replacement. I'm not happy. 🙄😡🤯😫
1 report
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