Horn
Press 
on the steering wheel
pad to sound the horn.
See also:
2013 Buick Verano Review
Despite its commuter-car roots, the 2012 Buick Verano drives and feels more
like a luxury car, which makes its starting price all the more attractive.
Parent company GM sunk big cash into developi ...
OIL PRESSURE LOW — STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check th ...
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 interfer ...