wheel torque KIA Optima Hybrid 2014 3.G Owner's Manual

437
Features of your vehicle
Electric power steering
Power steering uses the motor to
assist you in steering the vehicle. If
the engine is off or if the power steer-
ing system becomes inoperative, the
vehicle may still be steered, but it will
require increased steering effort.
The motor driven power steering is
controlled by the power steering con-
trol unit which senses the steering
wheel torque and vehicle speed to
command the motor.
The steering wheel becomes heavier
as the vehicle’s speed increases and
becomes lighter as the vehicle’s
speed decreases for better control of
the steering wheel.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the power
steering checked by an authorized
Kia dealer.
✽ ✽NOTICE
The following symptoms may occur
during normal vehicle operation:
• The steering effort is increased
immediately after turning the igni-
tion switch on. This happens as the
system performs the EPS system
diagnostics. When the diagnostics
are completed, the steering wheel
will return to its normal condition
• A click noise may be heard from the EPS relay after the ignition
switch is turned to the ON or
LOCK position.
• Motor noise may be heard when the vehicle is at a stop or at a low
driving speed.
• The steering effort increases if the steering wheel is rotated continuous-
ly when the vehicle is not in motion.
However, after a few minutes, it will
return to its normal conditions.
• When you operate the steering wheel in low temperature, abnor-
mal noise could occur. If tempera-
ture rises, the noise will disappear.
This is a normal condition.
If the Electric Power Steering System
does not operate normally, the warn-
ing light will illuminate on the instru-
ment cluster. The steering wheel may
become difficult to control or operate
abnormally. Take your vehicle to an
authorized Kia dealer and have the
vehicle checked as soon as possible.
STEERING WHEEL

What to do in an emergency
14
6
Wheels and wheel covers may have
sharp edges. Handle them carefully
to avoid possible injury. Before put-
ting the wheel into place, be sure
that there is nothing on the hub or
wheel (such as mud, tar, gravel, etc.)
that prevents the wheel from fitting
solidly against the hub. 10. To install the wheel, hold it on the
studs, put the wheel nuts on the
studs and tighten them finger
tight. Jiggle the tire to be sure it is
completely seated, then tighten
the nuts as much as possible
with your fingers again.
11. Lower the vehicle to the ground by turning the wheel nut wrench
counterclockwise.
Then position the wrench as shown
in the drawing and tighten the wheel
nuts. Be sure the socket is seated
completely over the nut. Do not stand
on the wrench handle or use an
extension pipe over the wrench han-
dle.
Go around the wheel tightening
every nut following the numerical
sequence shown in the image until
they are tight. Then double-check
each nut for tightness. After changing
the wheels, have an authorized Kia
dealer tighten the wheel nuts to their
proper torque as soon as possible.
WARNING- Installing awheel
Make sure the wheel makes
good contact with the hub when
installed. If the contact of the
mounting surface between the
wheel and hub is not good, the
wheel nuts could come loose
and cause the loss of a wheel.
Loss of a wheel may result in
loss of control of the vehicle.
OTF060007

615
What to do in an emergency
Wheel nut tightening torque:
Steel wheel & aluminium alloy wheel:
9~11 kg.m (65~79 lb.ft)
If you have a tire gauge, remove the
valve cap and check the air pressure.
If the pressure is lower than recom-
mended, drive slowly to the nearest
service station and inflate to the cor-
rect pressure. If it is too high, adjust
it until it is correct. Always reinstall
the valve cap after checking or
adjusting the tire pressure. If the cap
is not replaced, air may leak from the
tire. If you lose a valve cap, buy
another and install it as soon as pos-
sible.
After you have changed wheels,
always secure the flat tire in its place
and return the jack and tools to their
proper storage locations.Note that most lug nuts do not have
metric threads. Be sure to use
extreme care in checking for thread
style before installing aftermarket lug
nuts or wheels. If in doubt, consult an
authorized Kia dealer.To prevent the jack, jack handle,
wheel lug nut wrench and spare tire
from rattling while the vehicle is in
motion, store them properly.CAUTION - Reducing lug
nuts
Make certain during wheelremoval that the same nuts thatwere removed are reinstalled -or, if replaced, that nuts withmetric threads and the samechamfer configuration are used.Your vehicle has metric threadson the wheel studs and nuts.Installation of a non-metricthread nut on a metric stud willnot secure the wheel to the hubproperly and will damage thestud so that it must be replaced.
WARNING- Wheel studs
Do not drive your vehicle with
damaged wheel studs. If the
studs are damaged, they may
lose their ability to retain the
wheel. This could lead to the
loss of the wheel and a colli-
sion.
WARNING - Inadequate
spare tire pressure
Check the inflation pressures
as soon as possible after
installing the spare tire. Adjust
it to the specified pressure, if
necessary. Refer to “Tires and
wheels” in chapter 8.

85
Specifications & Consumer information
TIRES AND WHEELS
CAUTION
When replacing tires, use the same size originally supplied with the vehicle.Using tires of a different size can damage the related parts or make it work irregularly.
*1 : Normal load : Up to 3 persons Item Tire size Wheel size
Inflation pressure kPa (psi)
Wheel lug nut torque
kg•m (lb N
Normal load *
1Maximum load
Front Rear Front Rear
Full size tire P205/65R16 94H 6.5J×16 235 (34) 235 (34) 235 (34) 235 (34)
9~11
(65~79, 88~107)
P215/55R17 93V 6.5J×17 235 (34) 235 (34) 235 (34) 235 (34)