Toyota 4runner 2009 Owner's Manual page 222

4RUNNER_U.book Page 224 Wednesday, July 30, 2008 3:00 PM
2-5. Driving information
n Matching trailer ball height to trailer coupler height
n Before towing
Check that the following conditions are met:
l Ensure that your vehicle's tires are properly inflated. (→P. 479)
l Trailer tires should be inflated according to the trailer manufacturer's rec-
ommendation.
l All trailer lights work to be legal.
l All lights work each time you connect them.
l The trailer ball is set up at the proper height for the coupler on the trailer.
l The vehicle remains level when a loaded or unloaded trailer is hitched.
Do not drive if the vehicle is not level, and check for improper tongue
load, overloading, worn suspension, or other possible causes.
l The trailer cargo is securely loaded.
The rear view mirrors conform to all applicable federal, state/provincial or
l
local regulations. If they do not, install rear view mirrors appropriate for
towing purposes.
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4RUNNER_U_(L/O_0808)
No matter which class of tow hitch
applies, for a safe trailer hookup, the
trailer ball setup on must be the proper
height for the coupler on the trailer.
Coupler
Trailer ball