Chevrolet 2009 TrailBlazer Specifications download pdf (Page 373)

If your vehicle has P255/50R20 104V size tires installed

on the rear axle, they will require inﬂation pressure

adjustment when driving your vehicle at speeds above

99 mph (160 km/h). Set the cold inﬂation pressure, for the

rear tires only, to the maximum inﬂation pressure shown

on the tire sidewall, or 38 psi (262 kPa), whichever is

lower. See the example following. When you end this

high-speed driving, return the tires to the cold tire inﬂation

pressure shown on the Tire and Loading Information

label. See Loading the Vehicle on page 4-33.

Example:

You will ﬁnd the maximum load and inﬂation pressure

molded on the tire’s sidewall, in small letters, near

the rim ﬂange. It will read something like this: Maximum

load 690 kg (1521 lbs) 300 kPa (44 psi) Max. Press.

For this example, you would set the inﬂation pressure for

high-speed driving at 38 psi (262 kPa).

The inﬂation pressure for the front tires should be set to

the cold tire inﬂation pressure shown on the Tire and

Loading Information label.

Racing or other competitive driving may affect the

warranty coverage of your vehicle. See your warranty

booklet for more information.

Tire Pressure Monitor 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.

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 the tire to overheat and can lead to tire

failure. Under-inﬂation also reduces fuel efficiency

and tire tread life, and may affect the vehicle’s

handling and stopping ability.

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Chevrolet 2009 TrailBlazer Specifications Page 373

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