2008 VOLVO S80 traction control

The set speed, for example 55 mph, is then shown in parentheses. Speed and time interval are resumed by pressing .
WARNING
There may be a significant increase in speed after the
button has been pressed.
A short press on
in standby mode or a long press in active mode deactivates ACC.
The set speed is then cleared and cannot be resumed.
When ACC is activated, the vehicle's speed increases by approximately 1 mph (1 km/h) each additional time
is
pressed.
Deactivation due to action by the driver
ACC is deactivated:
when the brakes are applied
if the gear selector is moved to N
if the accelerator pedal is depressed for an extended period.
NOTE
If the accelerator pedal is only depressed for a short time, such as when passing another vehicle, ACC is deactivated
temporarily and is reactivated when the pedal is released.
Automatic deactivation
Adaptive cruise control is linked to other systems such as ABS, the stability and traction control system (DSTC) and
the Distance Alert system. If any of these systems are not functioning properly, adaptive cruise control is automatically
deactivated.
In the event of automatic deactivation a signal will sound and the message Cruise Control Canceled is shown in the
display. The driver must then intervene and adapt the vehicle's speed to the surrounding traffic.
Automatic deactivation may be caused if:
the vehicle's speed falls below 20 mph (30 km/h)
the wheels lose traction or if the anti-lock brake system (ABS) is activated
brake temperature is high
engine speed (rpm) is too low
the radar sensor is obstructed by, for example, wet snow or rain.
160 04 Comfort and driving pleasure
Adaptive Cruise Control-ACC
The radar sensor and its limitations
The radar sensor is used by both Adaptive Cruise Control and the Collision Warning System with Auto-brake (see
page 166
). It is designed to detect cars or larger vehicles driving in the same direction as your vehicle.
WARNING

Uniform Tire Quality Grading
ALL PASSENGER VEHICLE TIRES MUST CONFORM TO FEDERAL SAFETY REQUIREMENTS IN
ADDITION TO THESE GRADES
Quality grades can be found, where applicable, on the tire sidewall between the tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions
on a specified government test course. For example, a tire graded 150 would wear one and one half (1 1/2) times as
well on the government course as a tire graded 100. The relative performance of tires depends upon the actual
conditions of their use, however, and many depart significantly from the norm due to variation in driving habits,
maintenance practices and differences in road characteristics and climate.
TRACTION
The traction grades, from highest to lowest, are AA, A, B, and C, as measured under controlled conditions on specified
government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. The traction
grade assigned to this tire is based on braking (straight-ahead) traction tests and is not a measure of cornering (turning)
traction.
WARNING
The traction grade assigned to this tire is based on braking (straight-ahead) traction tests and is not a measure of
cornering (turning) traction.
TEMPERATURE
The temperature grades are AA (the highest), A, B, and C, representing the tire's resistance to the generation of heat
and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade C corresponds to a minimum level of performance that all
passenger vehicle tires must meet under the Federal Motor Safety Standard No. 109. Grades B and A represent higher
levels of performance on the laboratory test wheel than the minimum required by law.
WARNING
The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive
speed, under-inflation, or excessive loading, either separately or in combination, can cause heat buildup and tire
failure.
250 06 Maintenance and specifications
Wheels and tires
Snow chains, snow tires, studded tires
Snow chains
Snow chains can be used on your Volvo with the following restrictions:
Snow chains should be installed on front wheels only. Use only Volvo approved snow chains.

infant seats36-37
ISOFIX/LATCH anchors42
top tether anchors43
Child restraints


recalls and registration 44
Child safety 31-33
booster cushions41
child restraint systems34- 35
convertible seats38- 40
infant seats36- 37
Child safety locks48
Climate system


air distribution 127
air vents128
Interior Air Quality System127
introduction126
passenger compartment filter126
refrigerant126
Clock, setting 79
Cold weather driving190
Collision warning system166,168
Compass in rearview mirror149
Conserving electrical current189
Convertible seats38-40
Coolant214, 275
Cooling system, general information189
Courtesy lighting93-94
Crash mode30
Cruise control154-155
adaptive156- 159
Curb weight247
Current, conserving189
D
Defroster130
Detachable key blade57-58
Dimensions269
Disconnecting the front passenger's airbag22-24
Distance Alert163
Dome lighting93-94
Door mirrors99
Distance Alert system171
Driver distraction warning7
Driving economically188
Driving in cold weather190

uniform tire quality grading249
Top tether anchors (child restraint systems)43
Touching up paint266
Towing a trailer201-202
trailer hitch203
Towing the vehicle 204, 205
Traction control151
Trailer towing201-203
trailer hitch203
Transmission


Geartronic 110
general description110- 111
oil275
shiftlock override111
Tread wear indicator 235
Trip computer147
Trip odometers78
Trips, long distance189
Trunk


changing bulbs 222
driving with it open188
locking/unlocking64
opening from the inside65
Turn signals


changing bulbs 218
indicator lights76
using92
U
Uniform Tire Quality Grading 249
Unlocking the trunk55
Unlocking the vehicle54
Upholstery care264
V
Valet locking58
Vanity mirror185
changing bulbs222
Vehicle dimensions 269
Vehicle event data6, 208
Vehicle loading198-199, 247
roof loads200
Vehicle maintenance 208
performed by the owner209
Vehicle weights 270
Ventilated seats129