Horn
Pressa 
on the steering wheel pad
to sound the horn.
See also:
Add-On Equipment
When you carry removable items, you may need to put a limit on how many people you carry inside your vehicle. Be sure to weigh your vehicle before you buy and install the new equipment.
Notice: Overl ...
Driving Impressions
The overriding thing that struck me was how small the Acadia feels when you
drive it. Make no mistake, this is a big vehicle, but it doesn't feel that way,
and that's a good thing. It's easy to ju ...
Leaving the Vehicle with the Engine Running
WARNING
It can be dangerous to leave the vehicle with the engine running.
The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake firmly set. And, if you l ...