See also:

Trailer towing
Trailer towing with your vehicle may require the use of a trailer tow option package. Trailer towing puts additional loads on your vehicle’s engine, transmission, axle, brakes, tires and suspen ...

Exceptions
There are several exceptions to the Normal Schedule. They are listed below: Normal vehicle axle maintenance: Rear axles and power take-off (PTO) units with synthetic fluid and light-duty trucks e ...

Erasing the function button codes
Note: You cannot erase individual buttons. 1. Press and hold the outer two function buttons simultaneously for approximately 20 seconds until the LED lamps above the buttons flash rapid ...