Tire Pressure For High-Speed Operation; Tire Pressure Monitor System - Chevrolet Blazer 2022 Owner's Manual

Chevrolet Blazer Owner Manual (GMNA-Localizing-MidEast-16401983) -
2023 - CRC - 6/17/22
268 Vehicle Care
Tire Pressure for High-Speed
Operation
Warning
Driving at high speeds, 160 km/h
(100 mph) or higher, puts additional
strain on tires. Sustained high-speed
driving causes excessive heat buildup and
can cause sudden tire failure. This could
cause 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 allow the vehicle to
be driven at high speeds, make sure the
tires are rated for high-speed operation,
are in excellent condition, and are set to
the correct cold tire inflation pressure for
the vehicle load.
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
235/65R18
235/55R20
265/45R21
Return the tires to the recommended cold
tire inflation pressure when high-speed
driving has ended. See Vehicle Load Limits
0 180 and
Tire Pressure 0 266.

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.
Cold Inflation Pressure kPa (psi)
280 kPa (41 psi)
280 kPa (41 psi)
280 kPa (41 psi)
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.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes