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
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Lamp Messages
AFL (ADAPTIVE FORWARD
LIGHTING) LAMPS NEED
SERVICE
This message displays when the
Adaptive Forward Lighting (AFL)
system is disabled and needs
service. See your dealer. See
Adaptive Forwa ...
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Note that newspapers or dark
garments that can transfer color
to home furnishings can ...
Driving on Snow or Ice
Drive carefully when there is snow or ice between the tires and the road,
creating less traction or grip. Wet ice can occur at about 0°C (32°F) when
freezing rain begins to fall, resulting in even l ...