Volvo XC90 2018 Owner's Manual page 470

STARTING AND DRIVING
|| 2.
Lock the towbar by moving it back to its
retracted position, where it is locked.
> The indicator lamp will now illuminate with
a constant glow if the towbar is correctly
retracted.
Related information
Driving with a trailer (p. 468)
•
Towbar* (p. 465)
•
468
Driving with a trailer
When driving with a trailer, there are a number of
points that are important to think about regar-
ding the towbar, the trailer and how the load is
positioned in the trailer.
Payload depends on the car's kerb weight. The
total of the weight of the passengers and all
accessories, e.g. towbar, reduces the car's pay-
load by a corresponding weight.
The car is supplied with the necessary equipment
for towing a trailer.
The car's towbar must be of an approved
•
type.
Distribute the load on the trailer so that the
•
weight on the towbar complies with the
specified maximum towball load. Towball load
is calculated as part of the car's payload.
Increase the tyre pressure to the recom-
•
mended pressure for a full load.
The engine is loaded more heavily than usual
•
when driving with a trailer.
Do not tow a heavy trailer when the car is
•
brand new. Wait until it has been driven at
least 1000 km (620 miles).
The brakes are loaded much more than usual
•
on long and steep downhill slopes. Downshift
to a lower gear when shifting manually and
adjust your speed.
Follow the regulations in force for the permit-
•
ted speeds and weights.
Maintain a low speed when driving with a
•
trailer up long, steep ascents.
The maximum indicated trailer weight only
•
applies to heights up to 1000 metres above
sea level (3280 ft). At higher elevations, the
engine output and the vehicle's climbing abil-
ity are reduced due to the reduced air den-
sity, and the maximum trailer load must
therefore be reduced. The weight of the car
and trailer must be decreased by 10% for
each additional 1000 m (3280 ft) or part
thereof.
Avoid driving with a trailer on inclines of more
•
than 12%.
NOTE
To facilitate towing a trailer on a car with air
suspension*, select:
Dynamic drive mode, or
•
the Suspension Control
•
setting in Individual drive mode.
NOTE
Extreme weather conditions, driving with a
trailer or driving at high altitudes, in combina-
tion with poorer fuel quality than recom-
mended, are factors that considerably
increase the car's fuel consumption.
Dynamic
* Option/accessory.