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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet Tahoe 4x4: i have a 2007 Chevy Tahoe and it is telling

Customer Question

i have a 2007 Chevy Tahoe and it is telling me to service***** i have no lights on the switch and it does not engage
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.
Welcome! My name is ***** ***** I will do my best to assist you with this problem.Ask me about added features such as phone contact anytime if you wish !
i am sorry for the long wait
when you first key up this truck will the 4WD light bulb check then turn off ? or not even a bulb check ?
Customer: replied 1 year ago.

when you first key up no lights come on on the 4wd

Expert:  Gary replied 1 year ago.
can you check and see if the fuse called TREC is not blown and shows 12 volts at is and also the fuse called 4WD both in the under hood fuse box with the key ON