TOYOTA 2011 Tundra - Manual (Page 215)

191
2-1. Driving procedures
2
Wh
en drivin
g
Horn
n After adjusting the steering wheel (manually adjustable type)
Make sure that the steering wheel is securely locked.
The horn may not sound if the steering wheel is not securely locked.
(
→P. 83)
To sound the horn, press on or
close to the
mark.