Cadillac 2007 Escalade - Manual (Page 458)

High-Speed Operation
{ CAUTION:
Driving at high speeds, 100 mph (160 km/h)
or higher, puts an additional strain on
tires. Sustained high-speed driving causes
excessive heat build up and can cause
sudden tire failure. You could have a
crash and you or others could be killed.
Some high-speed rated tires require
inflation pressure adjustment for high
speed operation. When speed limits and
road conditions are such that a vehicle can
be driven at high speeds, make sure the
tires are rated for high speed operation,
in excellent condition, and set to the
correct cold tire inflation pressure for
the vehicle load.
If your vehicle has P265/65R18 or P285/45R22 size
tires and you will be driving at high speeds, speeds
of 100 mph (160 km/h) or higher, set the cold
inflation pressure to 3 psi (20 kPa) above the
recommended tire pressure shown on the Tire and
Loading Information Label. When you end this
high-speed driving, return the tires to the cold
inflation pressure shown on the Tire and Loading
Information label. See Loading Your Vehicle on
page 366 and Inflation - Tire Pressure on page 456.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses
radio and sensor technology to check tire pressure
levels. If your vehicle has this feature, sensors
are mounted on each tire and wheel assembly,
except the spare tire. The TPMS sensors monitor
the air pressure in your vehicle’s tires and transmit
tire pressure readings to a receiver located in
the vehicle.
458