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:
Your Responsibility
Increase the volume of the radio if the OnStar advisor
cannot be heard.
If the light next to the OnStar buttons is red, the system
may not be functioning properly. Press
and request
a vehicle ...
Under the Hood
In all but the Ultra models, a standard 185-hp, 3.4-liter V-6 teams with a
four-speed-automatic transmission. The Rendezvous Ultra gets a 245-hp, 3.6-liter
V-6; this engine is optional in the CXL. ...
Cargo Cover
If your vehicle has a cargo cover, you can use it
to cover items in the cargo area of your vehicle.
To install the cargo cover, do the following:
1. Align the endcap with the pocket in the trim ...