OnStar Services

See also:

ELECTRONIC KEY NOT DETECTED
If the vehicle has the keyless access system, this message displays if the vehicle does not detect the presence of a transmitter when you have attempted to start the vehicle or a vehicle d ...

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. En ...

Interior
Five occupants fit inside the Escalade EXT's cab, which includes a 60/40-split rear bench seat. The midgate extends the bed from 5 feet 3 inches long to 8 feet 1 inch, and it folds into the interi ...