06 Starting and driving
Difficult driving conditions
06
137 Driving on rough/unpaved surfaces
The Volvo XC90 is designed primarily for on-
road driving, and it has excellent handling cha-
racteristics on very rough or unpaved roads.
When driving on poorly maintained or unpaved
roads, please keep the following in mind:•
Reduce speed on rough surfaces to mini-
mize possible damage to the vehicle's
underbody.
•
When driving on soft surfaces such as dry
sand or snow, try to avoid stopping if at all
possible.WARNING
Avoid driving diagonally across steep
inclines as this could increase the risk of a
roll-over. Try to drive straight up or down the
slope.•
If the road is very steep, avoid turning
the vehicle around to help avoid the risk
of rolling over. Back the vehicle up or
down the incline instead.
NOTE
Avoid driving on steep inclines if the fuel
tank is nearly empty. If the flow of fuel to the
engine is interrupted due to the vehicle's
angle of inclination, this could result in dam-
age to the three-way catalytic converter. We
recommend keeping the fuel tank at least
half full when driving on steep inclines.Driving through waterThe vehicle can be driven through water up to
a depth of approximately 16 inches (40 cm), at
a maximum speed of 6 mph (10 km/h).
Take particular care when driving through flow-
ing water.
Clean the electrical connections for trailer wir-
ing after driving in mud or water.
When driving through water, maintain low
speed and do not stop in the water.
WARNING
After driving through water, press lightly on
the brake pedal to ensure that the brakes
are functioning normally. Water or mud can
make the brake linings slippery, resulting in
delayed braking effect.
CAUTION
•
Engine damage will occur if water is
drawn into the air cleaner.
•
If the vehicle is driven through water
deeper than 18 in (48 cm), water may
enter the differential and the transmis-
sion. This reduces the oil's lubricating
capacity and may shorten the service
life of these components.
•
Do not allow the vehicle to stand in
water up to the door sills longer than
absolutely necessary. This could result
in electrical malfunctions.
•
If the engine has been stopped while the
car is in water, do not attempt to restart
the engine. Have the car towed out of
the water.
06 Starting and drivingAutomatic transmission
06138
G026990
P (Park)Use this position when starting the engine or
parking the vehicle.
Never use P while the vehicle is in motion.
The parking brake should also be set whenever
the vehicle is parked.
The gear selector is mechanically locked in
the P position (SHIFTLOCK). To release the
gear selector from this position, the engine
must be running (or the ignition key must be in
positionII) and the brake pedal must be
depressed.
N (Neutral)Neutral – no gear engaged. Use the parking
brake.
WARNING
Never leave the vehicle unattended when
the engine is running. If, by mistake, the gear
selector is moved from P, the vehicle may
start moving.R (Reverse)Never engage R while the vehicle is moving.D (Drive)D is the normal driving position and should be
used as often as possible to help improve fuel
economy. The vehicle should not be moving
when shifting from R to the D position.
NOTE
The transmission has 6 forward speeds.
Automatic transmission – shift gate
positions
G020237
Shift gate positionsDepress the button on the front of the gear
selector knob to move between the R, N, D,
andP positions.KickdownAutomatic shift to a lower gear (kickdown) is
achieved by depressing the accelerator pedal
fully and briskly. An upshift will occur when
approaching the top speed for a particular gear
or by releasing the accelerator pedal slightly.
Kickdown can be used for maximum acceler-
ation or when passing at highway speeds.