Chevrolet Low Cab Forward 4500 2019 Series Owner's Manual page 243

242 Vehicle Care
Warning
Consult your dealer before
replacing wheels. Never use
wheels that are not designed for
the vehicle. Doing so would
impede safe vehicle operation.
The use of wheels and/or tires with
higher load carrying limits than
originally equipped on your vehicle
does not in itself increase the
GAWR or the GVWR of the vehicle.
Replacement wheels can be
obtained from the authorized dealer
or tire dealer.
Checking Tires
Air Pressure
Too low or too high a tire air
pressure not only affects the ride or
causes damage to the cargo but
also can cause abnormal heat
buildup, premature wear, a tire
puncture, or may even cause the
tire to burst.
Use an appropriate tire air pressure
gauge when measuring the air
pressure of a tire. Tire air pressure
should be measured when the tire is
cold, or before the vehicle is driven.
(After driving, tire air pressure
increases by about 10%.)
As the tire air pressure varies
depending on the vehicle model and
tire size, refer to the Vehicle
Certification and Greenhouse Gas
(GHG) Emissions Plate on the
driver's door opening frame or the
tire air pressure information on the
following table.