Volvo XC70 Owner's Manual page 150

2003 VOLVO XC70
WARNING!
Bumper-attached trailer hitches must not be used on Volvo's, nor should safety chains be attached
to the bumper.
Trailer hitches attaching to the vehicle rear axle must not be used.
Never connect a trailer's hydraulic brake system directly to the vehicle brake system, nor a trailer's
lighting system directly to the vehicle lighting system. Consult your nearest authorized Volvo retailer
for correct installation.
When towing a trailer, the trailer's safety wire must be correctly fastened to the hole or hook
provided in the trailer hitch on the car. The safety wire should never be fastened to or wound around
the drawbar ball.
NOTE:
When parking the car with a trailer on a hill, apply the parking brake before putting the gear selector
in (P)ark. When starting on a hill, put the gear selector in (D)rive before releasing the parking brake.
If you use the manual (Geartronic) shift positions while towing a trailer, make sure the gear you select
does not put too much strain on the engine (using too high a gear).
The drawbar assembly/trailer hitch may be certified for trailers that are heavier than the car is
designed to tow. Please adhere to Volvo's recommended trailer weights.
* When driving for prolonged periods at temperatures above 86° F (30° C), the maximum recommended
weight is 2000 lbs (900 kg).
pg. 102 Detachable trailer hitch (accessory) - installing/removing
A - ball holder, B - locking bolt, C - cotter pin, D - hitch assembly
Installing the ball holder
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