Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
See also:
Safety Belt
Refer to the following sections for important information
on how to use safety belts properly.
• Safety Belts: They Are for Everyone.
• How to Wear Safety Belts Properly.
• Lap-Shoulder B ...
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...
Side Blind Zone Alert (SBZA)
For vehicles with this feature, it may alert you to
vehicles located in your side blind zone. When the
system detects a vehicle in the side blind zone, an SBZA
display will light up in the corre ...