2004 GMC Envoy xl slt unknown driver

Asked by larry May 13, 2020 at 08:47 PM about the 2004 GMC Envoy XL SLT

Question type: Maintenance & Repair

When I turn the key to the on position all the lights
come on it says unknown driver on the display then
it switches to service brake system  then the
odometer and all indicator lights shut off except
for  service engine soon and the seatbelt indicator

1 Answer

Your Answer:

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