Checking Coolant

The engine coolant recovery tank is in the engine compartment on the passenger’s side of the vehicle. The cap has this symbol on it.
The vehicle must be on a level surface. When your engine is cold, the coolant level should be at FULL COLD, or a little higher.
See also:
Express-Open/Express-Close
To express-open the sunroof from
the closed or vent position, fully
press and release the rear of the
switch (B). The sunroof opens
automatically. To stop the sunroof
partway, press the swit ...
Compass Calibration
The compass can be manually calibrated. Only calibrate
the compass in a magnetically clean and safe location,
such as an open parking lot, where driving the vehicle in
circles is not a danger. I ...
Transferring Service
Push to request account transfer
eligibility information. The Advisor
can assist in canceling or removing
account information. If OnStar
receives information that vehicle
ownership has chan ...
