Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine and/or an Allison Transmission, see the maintenance schedule section in the DURAMAX® Diesel manual.
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.
See also:
Transmission Messages
SERVICE TRANSMISSION
This message displays if there is a problem with the transmission. See your dealer.
SHIFT TO PARK
This message displays when the transmission needs to be shifted to P (Park).
...
Lumbar Adjustment
Manual Lumbar
If equipped, increase or decrease manual lumbar support by turning the knob forward or rearward.
See Lumbar Adjustment on page 3‑4 for more information.
Power Lumbar
To ...
Range Selection Mode (Allison® Transmission or Hydra-Matic® 6-Speed
Transmission)
The vehicle may have a Range Selection Mode. The Range Selection Mode helps control the vehicle's transmission and vehicle speed while driving down hill or towing a trailer by letting you select a d ...