Engine Oil Additives / Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M 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:
Using the Delete Command
The delete command allows specific name tags to be
deleted.
To use the delete command:
1. Press and hold for two seconds.
The system
responds with “Ready” followed by a tone.
2. Say “D ...
Using the Store Command
The store command allows a phone number to be stored without entering the digits individually.
1. Press
.
► For vehicles without a navigation system, the system responds “Ready,” followed ...
Checking Coolant
The vehicle must be on a level surface when checking
the coolant level.
The coolant level should be at or above the FULL
COLD mark when the engine is cold. The coolant level
should be above the ...