Tread Depth - Chevrolet Spark 2022 Owner's Manual

14. Set all four tires to the recommended air
pressure level as indicated on the tire
pressure label.
15. Ensure the tire loading status is set
according selected pressure. Driver
Information Center (DIC) 0 79.
Temperature dependency
The tire pressure depends on the
temperature of the tire. During driving, tire
temperature and pressure increase. Tire
pressure values provided on the tire
information label and tire pressure chart are
valid for cold tires, which means at 20 °C.
The pressure increases by nearly 10 kPa for a
10 °C temperature increase. This must be
considered when warm tires are checked.
The tire pressure value displayed in the DIC
shows the real tire pressure. A cooled down
tire will show a decreased value, which does
not indicate an air leak.

Tread Depth

Check tread depth at regular intervals.
Tires should be replaced for safety reasons
at a tread depth of 2-3 mm (4 mm for winter
tires).
For safety reasons it is recommended that
the tread depth of the tires on one axle
should not vary by more than 2 mm.
The legally permissible minimum tread
depth (1.6 mm) has been reached when the
tread has worn down as far as one of the
tread wear indicators (TWI). Their position is
indicated by markings on the sidewall.
Tires age, even if they are not used. We
recommend tire replacement every 6 years.
Vehicle Care
Changing tire and wheel size
If tires of a different size than those fitted
at the factory are used, it may be necessary
to reprogramme the speedometer as well as
the nominal tire pressure and to make other
vehicle modifications
After converting to a different tire size, have
the label with tire pressures replaced.
Warning
Use of unsuitable tires or wheels may
lead to accidents and will invalidate the
vehicle type approval.
Warning
Do not use different size and type of
tires and wheels than those originally
installed on the vehicle.
It can affect safety and performance of
the vehicle. It could lead to handling
failure or rollover and serious injury.
When replacing tires, be sure to install all
four tires and wheels of the same size,
tipe, tread, brand and load-carrying
capacity. The use of any other tire size or
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