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4wd service light
I have a 2000 Yukon and the service 4wd message light comes on after the vehicle warms up. I did the TCCM test and when it's cold all the lights flash and it goes into 2 hi . As I drive the light goes out but stays in 2 hi, I push the 2 hi button and it lights back up. If I turn off engine and...- rdh55
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- Forum: Engine & Drivetrain
