Turn Signals When Towing a Trailer
The arrows on the instrument panel flash whenever signaling a turn or lane change. Properly hooked up, the trailer lamps also flash, telling other drivers the vehicle is turning, changing lanes, or stopping.
When towing a trailer, the arrows on the instrument panel flash for turns even if the bulbs on the trailer are burned out. For this reason you may think other drivers are seeing the signal when they are not. It is important to check occasionally to be sure the trailer bulbs are still working.
See also:
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems. It also
checks the tire pressures, if the v ...
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a problem with the airbag system. Have your
dealer inspect the system for problems. See Airbag Readiness Light
and Airbag System  ...
Turning the System On and Off
The system can be disabled through
the Driver Information Center (DIC).
See “Parking Assist” under Driver
Information Center (DIC) for more information.
URPA defaults to the on setting
each ti ...






