Cadillac XT4 Owner Manual (GMNA-Localizing-MidEast-14584650) - 2021 -
CRC - 7/15/20
290
VEHICLE CARE
Vehicles with tire sizes listed in the
High Speed Operation Inflation
Pressures table require inflation
pressure adjustment when driving the
vehicle at speeds of 160 km/h
(100 mph) or higher. Set the cold tire
inflation pressure to the
corresponding value in the table for
the tire size on the vehicle.
High Speed Operation Inflation Pressures
Tire Size
Cold Inflation Pressure kPa (psi)
235/55R18
260 kPa (38 psi)
245/45R20
260 kPa (38 psi)
Return the tires to the recommended
cold tire inflation pressure when
high-speed driving has ended. See
and
.
Tire Pressure Monitor
System
Caution
Modifications made to the Tire
Pressure Monitor System (TPMS) by
anyone other than an authorized
service facility may void
authorization to use the system.
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor the
air pressure in your vehicle's tires and
transmit tire pressure readings to a
receiver located in the vehicle.
Each tire, 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 tire inflation
pressure label. (If your vehicle has
tires of a different size than the size
indicated on the vehicle placard or tire
inflation pressure label, you should
determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your tires
is significantly under-inflated.