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.
The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating.
See also:
Express Window Operation
Windows with an express-up or
down feature allow the front
windows to be lowered or raised
without holding the switch. Rear
windows only have express-down.
Pull a window switch up or push it ...
Automatic Crash Response
In a crash, built in sensors can automatically alert an
OnStar advisor who is immediately connected to
the vehicle to see if you need help. ...
Safety Locks
The vehicle may have power safety locks or manual safety locks. Power safety locks will lock the rear windows and not allow the rear doors to be opened from the inside.
Manual safety locks do not all ...
