GMCSierra 15002020 · Fifth generation
  1. GMC Sierra 1500
  2. Owner info
  3. Owner’s manuals
  4. 2020
  5. Special Application Services

2020 GMC Sierra 1500 Owner’s Manual — Special Application Services

Service and Maintenance

    Vehicles with Dual Wheels: Check dual wheel nut torque at 160, 1 600, and 10 000 km (100,

1,000, and 6,000 mi) of driving. Repeat this service whenever a tire/wheel is serviced or removed.

    Severe Commercial Use Vehicles Only: Lubricate chassis components every oil change.
    Have underbody flushing service performed. See “Underbody Maintenance” in Exterior Care

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