Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hi, I am Mike, welcome. I'm reviewing your question.
Allow me to get that wiring diagram to help figure this out.
May I ask which model this is a Sierra, etc what engine?
I looked it up for the 2002 GMC Sierra 6.0L Eng 1500 .
They are usually all the same anyhow.
I didn't see anything in common between the seats and that passenger window so I would use the diagram and check the seat fuse/circuit breaker and the wiring for the passenger window.
Do you still need help with this?
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