OnStar Services
See also:
What to Use
WARNING!
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids can boil before
the proper coolant mixture will.
The coolant warni ...
Scheduled Maintenance
When the CHANGE ENGINE OIL DIC message
comes on, it means that service is required
for your vehicle. Have your vehicle serviced as
soon as possible within the next 600 miles
(1 000 km). It is poss ...
Engine Coolant (4.6L Engine)
The cooling system in the vehicle is filled with
DEX-COOL® engine coolant. This coolant is designed
to remain in the vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first ...
