See also:

Airbag System Messages
SERVICE AIR BAG This message displays when there is a problem with the airbag system. Have the vehicle serviced by your dealer immediately. See Airbag Readiness Light for more information. ...

SIDE BLIND ZONE ALERT SYSTEM TEMPORARILY UNAVAILABLE
This message indicates that the SBZA system is disabled because the sensor is blocked and cannot detect vehicles in the blind zone. The sensor may be blocked by mud, dirt, snow, ice, or slush ...

Engine Compartment Overview
CTS 3.6L V6 Engine Shown, 3.0L V6 Engine Similar A. Windshield Washer Fluid Reservoir. See Washer Fluid. B. Engine Compartment Fuse Block (CTS V Wagon) or Engine Compartment Fuse Block (CT ...