Special Application Services

○ Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/ 3,000 mi.
○ Have underbody flushing service performed once a year.

    See also:

    Dual Automatic Climate Control System
    Dual Automatic Climate Control System A. Driver and Passenger Temperature Controls B. Fan Control C. AUTO D. Defrost E. Air Recirculation F. Outside Air G. Air Delivery Mode Control H. Dis ...

    If the Vehicle Is Stuck
    Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. If the vehicle has a traction system, it can often help to free a stuck vehicle. Refer to the vehicle' ...

    Footnotes — Maintenance Schedule Additional Required Services — Normal
    a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. Replace as needed. b) Or every four years, ...