Chevrolet 2011 HHR Owner's Manual page 355

WARNING:
Using bias-ply tires on the vehicle may
cause the wheel rim flanges to develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly and cause
a crash. Use only radial-ply tires with the
wheels on the vehicle.
If you must replace your vehicle's tires with those
that do not have a TPC Spec number, make sure
they are the same size, load range, speed rating,
and construction type (radial and bias belted tires)
as your vehicle's original tires.
Vehicles that have a tire pressure monitoring
system could give an inaccurate low pressure
warning if non TPC Spec rated tires are installed
on your vehicle. Non TPC Spec rated tires may
give a low pressure warning that is higher or lower
than the proper warning level you would get with
TPC Spec rated tires. See Tire Pressure Monitor
System on page 6 58.
Your vehicle's original equipment tires are listed
on the Tire and Loading Information Label.
See Loading the Vehicle on page 5 23, for
more information about the Tire and Loading
Information Label and its location on your vehicle.
I n f o r ma t i o n P r o v i d e d b y :
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