09 Wheels and tires
09
Tire Monitor - introduction
Calibrating Tire Monitor
NOTE
Tire Monitor uses the rotational speed of the
tires in combination with signal analysis of the
ABS sensor signals to determine if they are
properly inflated.
In order for Tire Monitor to work correctly, tire
pressure reference values must be set. This
must be done each time wheels or tire pres-
sures are changed.
If a malfunction occurs in the system, the
tire pressure warning light will flash for
approximately 1 minute and then remain
illuminated. Tire press. syst Service
required will be displayed.
When a tire is under-inflated, its diameter
(and consequently also its rotational speed)
changes. By comparing the individual tires
with each other it is possible to determine if
one or more tires are under inflated.
Calibration
1. Switch off the engine.
NOTE
2. Inflate the tires to the desired pressure
(consult tire pressure placard located on
the driver's side B-pillar (the structural
member at the side of the vehicle) and
put the ignition in mode II, see Ignition
modes (p. 79).
The system indicates low tire pressure but
does not replace normal tire maintenance.
For information on correct tire pressure,
please refer to the tire inflation pressure
table (see Tire inflation – pressure table
(p. 301)), the tire inflation pressure placard
located on the driver's side B-pillar (the
structural member at the side of the vehi-
cle, at the rear of the driver's door open-
ing) or consult your Volvo retailer.
When low inflation pressure is detected or if
the system is not functioning properly, Tire
Monitor will light up the tire pressure warning
light (
) (also referred to as a telltale) in
3. Press the MY CAR button on the center
console control panel and select Settings
the instrument panel and will display one of
the following messages in the text window,
for example: Tire pressure low Check rear
right tire6 or Tire press. syst Service
required.
Car settings Tire monitoring.
4. Press OK/MENU, select Calibrate tire
pressure and press OK/MENU again.
Related information
•
Tire pressure monitoring - introduction
(p. 306)
5. Drive away.
If two or more tires have low pressure or if the
system cannot determine which tire has low
pressure, a general text (Tire pressure low
Check tires) will be displayed.
> The calibration process will be comple-
ted while driving and will be interrupted
if the vehicle is parked and the engine
is switched off. Calibration continues
automatically when driving resumes.
The system will not give any confirma-
tion when calibration is finished
although it will state if calibration fails.
6
That last part of this message varies, depending on the tire(s) effected.
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