Cadillac XT4 Owner Manual (GMNA-Localizing-Europe-15440913) - 2022 -
CRC - 5/13/21
VEHICLE CARE
323
High Speed Operation Inflation Pressures
Tyre Size
Cold Inflation Pressure kPa (psi)
235/55R18
260 kPa (38 psi)
245/45R20
260 kPa (38 psi)
Return the tyres to the recommended
cold tyre inflation pressure when
high-speed driving has ended. See
and
.
Tyre Pressure Monitor
System
Caution
Modifications made to the Tyre
Pressure Monitor System (TPMS) by
anyone other than an authorised
service facility may void
authorisation to use the system.
The Tyre Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tyre pressure
levels. The TPMS sensors monitor the
air pressure in your vehicle's tyres and
transmit tyre pressure readings to a
receiver located in the vehicle.
Each tyre, including the spare (if
provided), should be checked monthly
when cold and inflated to the
inflation pressure recommended by
the vehicle manufacturer on the
vehicle placard or tyre inflation
pressure label. (If your vehicle has
tyres of a different size than the size
indicated on the vehicle placard or
tyre inflation pressure label, you
should determine the proper tyre
inflation 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 efficiency 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.