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).
○ The ignition key should come out only in LOCK/OFF.
Contact your dealer if service is required.
See also:
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All Terrain chassis and suspension
Based on the chassis of the 2011 Sierra HD trucks, the All Terrain HD
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Curve Tips
• Take curves at a reasonable speed.
• Reduce speed before entering a curve.
• Maintain a reasonable steady speed through the curve.
• Wait until the vehicle is out of the curve before acce ...





