SBZA Detection Zones
The SBZA sensor covers a zone of approximately one lane over from both sides of the vehicle, or 3.5m(11 ft). This zone starts at each side mirror and goes back approximately 5.0 m(16 ft). The height of the zone is approximately between 0.5 m(1.5 ft) and 2.0m(6 ft) off the ground.
The SBZA detection zones do not change if the vehicle is towing a trailer. So be extra careful when changing lanes while towing a trailer.
See also:
Windshield Washer
(Windshield Washer): To
spray washer fluid
on the windshield, press the windshield washer
paddle. The wipers will clear the window and then
either stop or return to your preset speed.
CAUTION:
...
Following Distance
Stay at least twice as far behind the vehicle ahead as you would
when driving the vehicle without a trailer. This can help to avoid situations that
require heavy braking and sudden turns. ...
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free ...