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:
Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill.
In order to get an accurate reading, the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See Engi ...
MP3 and WMA Supported Files
Format
The radio can play.mp3 or .wma files that were recorded onto a CD-R or CD-RW disc.
Compressed Audio or Mixed Mode Discs
The radio plays discs that contain both uncompressed CD audio and MP3/ ...
Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum
capacity, this message may come on. Push Q to try the call again or try again after
driving a few miles into anoth ...





