Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
New for 2010
GM has dropped the long-running 6.0-liter V-8 engine from the Sierra lineup,
leaving the powerful 6.2-liter V-8 for heavy towing needs. The rest of the
Sierra's eight-cylinder lineup benefits from ...
Confident and agile driving experience
Two new engines are offered on all GMC Terrain models, each with fuel-saving
direct injection and variable valve timing technology. Vehicle highlights
include:
New 3.0L DOHC direct injected V-6 ...
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule on page 11‑3.
Tires are rotated to achieve a uniform wear for all tires. The first rotation is the most important.
...