Winter Tyres; Summer Tyres - Cadillac XT4 2023 Owner's Manual

Warning (Continued)
Overloading the tyres can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits 0 176.
Underinflated tyres pose the same
danger as overloaded tyres. The
resulting crash could cause serious
injury. Check all tyres frequently
to maintain the recommended
pressure. Tyre pressure should be
checked when the tyres are cold.
Overinflated tyres are more likely
to be cut, punctured, or broken by
a sudden impact - such as when
hitting a pothole. Keep tyres at
the recommended pressure.
Worn or old tyres can cause a
crash. If the tread is badly worn,
replace them.
Replace any tyres that have been
damaged by impacts with
potholes, curbs, etc.
(Continued)
Warning (Continued)
Improperly repaired tyres can
cause a crash. Only your dealer or
an authorised tyre service centre
should repair, replace, remove, and
reinstall the tyres.
Do not spin the tyres in excess of
56 km/h (35 mph) on slippery
surfaces such as snow, mud, ice,
etc. Excessive spinning may cause
the tyres to explode.
See Tyre Pressure for High-Speed
Operation 0 289 for inflation pressure
adjustment for high-speed driving.

Winter Tyres

This vehicle was not originally equipped
with winter tyres. Winter tyres are designed
for increased traction on snow and
ice-covered roads. Consider installing winter
tyres on the vehicle if frequent driving on
ice or snow covered roads is expected. See
your dealer for details regarding winter tyre
availability and proper tyre selection. Also,
see Buying New Tyres 0 296.
Vehicle Care
With winter tyres, there may be decreased
dry road traction, increased road noise and
shorter tread life. After changing to winter
tyres, be alert for changes in the vehicle
handling and braking.
If using winter tyres:
Use tyres of the same brand and tread
type on all four wheel positions.
Use only radial ply tyres of the same size,
load range and speed rating as the
original equipment tyres.
Winter tyres with the same speed rating as
the original equipment tyres may not be
available for H, V, W, Y and ZR speed rated
tyres. If winter tyres with a lower speed
rating are chosen, never exceed the tyre's
maximum speed capability.

Summer Tyres

This vehicle may come with 235/55R18 or
245/45R20 high performance summer tyres.
These tyres have a special tread and
compound that are optimised for maximum
dry and wet road performance. This special
tread and compound will have decreased
performance in cold climates, and on ice and
snow. It is recommended that winter tyres
be installed on the vehicle if frequent
driving at temperatures below
287