Having problems with your 2003 Chevrolet TrailBlazer ?

No gps signal allowed when truck on

\015 When i turn on my trailblazer i lose all signal to my gps. i have tried an external antenna but the problem persists.\015 Posted / edited by AnonymousUser on : 23-04-2018

Answers :

One other thing to check would be to see if the Onstar, has it's own fuse by chance & if yes, remove it & try yur GPS after.
Repair Help & Product Troubleshooting for 2003 Chevrolet TrailBlazer

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