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:
Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep
downgrade. If the transmission is not shifted down, the brakes might have to be
used so much that they would get hot and n ...
Airbag Readiness Light
This light shows if there is an electrical problem with the airbag system.
The system check includes the airbag sensor(s), passenger sensing system, the
pretensioners, the airbag modules, the wiring ...
High-Beam On Light
The high–beam on light comes on
when the high-beam headlamps are
in use.
See Headlamp High/Low-Beam
Changer for more
information. ...