Kia EV9 2023 Owner's Manual page 621

Maintenance
僅 The ABS works by comparing the speed of the wheels. The tire size affects wheel speed.
When replacing tires, all 4 tires must use the same size, type, construction and tread
pattern originally supplied with the vehicle. Using tires of a different size can cause the
ABS (Anti-lock Brake System) and ESC (Electronic Stability Control) to work irregularly.
CAUTION
When replacing the tires, recheck and tighten the wheel nuts after driving about 50 km (31
miles) and recheck after driving about 1,000 km (620 miles). If the steering wheel shakes
or the vehicle vibrates while driving, the tire is out of balance. Align the tire balance. If the
problem is not solved, contact a professional workshop. Kia recommends to visit an autho-
rized Kia dealer/service partner.
NOTE
We recommend that when replacing tires, use the same originally supplied with the vehi-
cles. If not, that affects driving performance.
Wheel replacement
Make sure the new wheels are equivalent to the original factory units in diameter, rim
width and offset.
WARNING
A wheel that is not the correct size may adversely affect wheel and bearing life, braking
and stopping abilities, handling characteristics, ground clearance, body-to-tire clearance,
snow chain clearance, speedometer and odometer calibration, headlight aim and bumper
height.
Tire traction
Tire traction can be reduced if you drive on worn tires, tires that are improperly inflated or
on slippery road surfaces. Tires should be replaced when tread wear indicators appear.
Slow down whenever there is rain, snow or ice on the road to reduce the possibility of los-
ing control of the vehicle.
Tire maintenance
In addition to proper inflation, correct wheel alignment helps to decrease tire wear. If you
find a tire is worn unevenly, have a professional workshop check the wheel alignment. Kia
recommends to visit an authorized Kia dealer/service partner.
When you have new tires installed, make sure they are balanced. This will increase vehicle
ride comfort and tire life. Additionally, a tire should always be rebalanced if it is removed
from the wheel.
Replacing components
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