Special Application Services
- Vehicles with manual transmissions: Every two years drain, flush, and fill clutch hydraulic system.
- 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:
Automatic Dimming Mirror
The vehicle has an automatic dimming mirror. The driver outside mirror automatically
adjusts for the glare of headlamps behind you. This feature is controlled by the
on and off setting on the insi ...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems. It also
checks the tire pressures, if the v ...
Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep
downgrade. If the transmission is not shifted down, the brakes might have to be
used so much that they would get hot and n ...