ent size than the size indicated on the vehicle placard or tyre inflation pressure label, you should determine the proper tyre infla-
tion pressure for those tyres.)
As an added safety feature, your vehicle has been equipped with a tyre pressure monitoring system (TPMS) that illuminates a
low tyre pressure telltale when one or more of your tyres is significantly under-inflated. Accordingly, when the low tyre pressure
telltale illuminates, you should stop and check your tyres as soon as possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tyre causes the tyre to overheat and can lead to tyre failure. Under-inflation also reduces fuel ef-
ficiency and tyre tread life, and may affect the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tyre maintenance, and it is the driver's responsibility to maintain correct
tyre pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tyre pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly.
The TPMS malfunction indicator is combined with the low tyre pressure telltale. When the system detects a malfunction, the
telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may
not be able to detect or signal low tyre pressure as intended. TPMS malfunctions may occur for a variety of reasons, including
the installation of replacement or alternate tyres or wheels on the vehicle that prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after replacing one or more tyres or wheels on your vehicle to ensure that the re-
placement or alternate tyres and wheels allow the TPMS to continue to function properly.
[1]
Volvo recommends an authorised Volvo workshop for any repair or service needs.
13.4.5.1.1. Limitations of tyre pressure monitoring
There are some circumstances in which the tyre pressure monitoring may not function correctly. Be sure to
familiarise yourself with them to understand the system's limitations.
Tyre pressure monitoring can be negatively affected by:
incompatible rims or tyres
wheel modifications
injected liquids such as tyre sealing fluid
snow chains
accessories that interfere with the system's wireless transmission or the car's electrical system
staying close to sources of strong radio waves or electrical fields. A few examples of locations that may cause this type of
interference are petrol stations, airports and TV stations.
If the car detects a fault with the system, it is indicated in the display.
13.4.5.2. Adjusting tyre pressure
The tyre pressure needs to be adjusted if you're planning to drive with a heavy load or at high speeds for
prolonged periods. It's also normal for tyre pressure to decrease over time. Adjusting it so you have the
The content of this manual represents the status of the user manual at the time of printing and may not be completely valid in future
instances. For more information, refer to the first page for the complete disclaimer note.
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