Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Coverage
Services are provided up to 5 years/ 160 000 km (100,000 mi), whichever comes
first.
In the U.S., anyone driving the vehicle is covered. In Canada, a person driving
the vehicle without permission ...
Headlamp Washer
For vehicles with headlamp washers, they are located to the side of the
headlamps.
The headlamps must be on in order to use the headlamp washers.
If the headlamps are not on, only the windshiel ...
Hydroplaning
Hydroplaning is dangerous. Water can build up under the vehicle's tires so they
actually ride on the water. This can happen if the road is wet enough and you are
going fast enough. When the ve ...