GMC Sierra

GMC Sierra

GMC Sierra

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CD Messages
Check Disc: Radios with a single CD player display Check Disc and/or eject the CD if an error occurs. Optical Error: The disc was inserted upside down. Disk Read Error: A disc was inserted with an i ...

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. • The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). †...

Different Size Tires and Wheels
If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, a ...