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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1667
Experience:  GM Grand Master Technician 2007. 14 year experience.
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I changed the battery in my 2003 GMC envoy, now it wont

Customer Question

I changed the battery in my 2003 GMC envoy, now it wont start and i'm getting a message on the display screen that reads, "unknown driver", what do I do?
Submitted: 1 year ago.
Category: GMC
Expert:  Dan replied 1 year ago.

Hello, my name is***** battery and with battery disconnected touch cable together for 10 seconds, let me know if this helps. Thanks.

Customer: replied 1 year ago.
ok, and after I reconnect the cables?
Expert:  Dan replied 1 year ago.

That is correct, let me know how it goes. Thanks.

Customer: replied 1 year ago.
nothing, its still not doing anything
Customer: replied 1 year ago.
hello?
Expert:  Dan replied 1 year ago.

I'm going to open question back up to see if someone else has some recommendations other then bringing to dealership because that would be next step in my book if you have already checked all the fuses.

Customer: replied 1 year ago.
dan, are you still there?
Customer: replied 1 year ago.
My GMC Envoy will not turn on after I disconnected the battery, I have a message that reads,"unknown driver".
Expert:  Dan replied 1 year ago.

Do disconnect trick again but this time hold cables together for 10 minutes, I think that may be your only hope. But question is still open incase someone else has more advice. Let me know if it changes anything if trying it for 10 minutes. Thanks.

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