See also:

When to Inspect the Engine Air Cleaner/Filter
Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mile) interval. See Maintenance Schedule, for more inf ...

Cooling System
When it is safe to lift the hood: A. Engine Cooling Fan (Out of View) B. Engine Coolant Surge Tank and Pressure Cap WARNING An electric engine cooling fan under the hood can start up even ...

Grade Braking
The Grade Braking shift modes can be activated by pressing the button on the end of the shift control lever. While in Range Selection Mode, Grade Braking is deactivated allowing the driver to sele ...