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2354-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10684U
WARNING
■Emergency steering assist
● As emergency steering assist operation will be canceled when th e system
determines that lane departure prevention function has been com pleted.
● Emergency steering assist may not operate or may be cancel in t he follow-
ing cases as the system may determine the driver is taking actions.
• If the accelerator pedal is being depressed strongly, the steering wheel is being operated sharply, the brake pedal is being depressed or the
turn signal lever is being operated. In this case, the system m ay deter-
mine that the driver is taking evasive action and the emergency steering
assist may not operate.
• In some situations, while the emergency steering assist is ope rating,
operation of the function may be canceled if the accelerator pe dal is
depressed strongly, the steeri ng wheel is operated sharply or t he brake
pedal is being depressed and the system determines that the dri ver is
taking evasive action.
• When the emergency steering assist is operating, if the steeri ng wheel
is held firmly or is operated in the opposite direction to that which the
system is generating torque, the function may be canceled.
■ When to disable the pre-collision system
In the following situations, disable the system, as it may not operate prop-
erly, possibly leading to an accident resulting in death or ser ious injury:
● When the vehicle is being towed
● When your vehicle is towing another vehicle
● When transporting the vehicle via truck, boat, train or similar means of
transportation
● When the vehicle is raised on a lift with the engine running an d the tires
are allowed to rotate freely
● When inspecting the vehicle using a drum tester such as a chass is dyna-
mometer or speedometer tester, or when using an on vehicle whee l bal-
ancer
● When a strong impact is applied to the front bumper or front gr ille, due to
an accident or other reasons
● If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle has been in an accident or is malfunctioning
● When the vehicle is driven in a sporty manner or off-road
● When the tires are not properly inflated
Page 455 of 548

4557-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10684U
WARNING
■Replacing a flat tire
●Observe the following precautions.
Failure to do so may result in serious injury:
• Do not try to remove the wheel ornament by hand. Take due care in
handling the ornament to avoi d unexpected personal injury.
• Do not touch the disc wheels or the area around the brakes imm edi-
ately after the vehicle has been driven.
After the vehicle has been driven, the disc wheels and the area
around the brakes will be extreme ly hot. Touching these areas with
hands, feet or other body parts while changing a tire, etc., ma y
result in burns.
●Failure to follow these precautions could cause the wheel nuts to
loosen and the t ire to fall off, resulting in death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 76 ft
·lbf
(103 N
·m, 10.5 kgf·m) as soon as possible after changing wheels.
• Do not attach a heavily damaged wheel ornament, as it may fly off
the wheel while the vehicle is moving.
• When installing a tire, only use wheel nuts that have been spe cifi-
cally designed for that wheel.
• If there are any cracks or defo rmations in the bolt screws, nut
threads or bolt holes of the wheel, have the vehicle inspected by
your Toyota dealer.
• When installing the wheel nuts, b e sure to install them with the
tapered ends facing inward.
Page 457 of 548

4577-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10684U
Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.
Tightening torque:
76 ft
·lbf (103 N·m, 10.5 kgf·m)
Stow the flat tire, tire jack and all tools.
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY US E
ONLY” on the tire sidewall.
Use the compact spar e tire temporarily, and only in an emergenc y.
●Make sure to check the tire inflation pressure of the compact spare tire.
( P. 4 8 2 )
■After completing the tire change
The tire pressure warni ng system must be reset. ( P. 378)
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, low inflation pressure of the spare tire will not be
indicated by the tire pressure warning system. Also, if you rep lace the
compact spare tire after the tire pressure warning light comes on, the light
remains on.
■When the compact spa re tire is equipped
The vehicle becomes lower when driving with the compact spare t ire
compared to when driving with standard tires.
■If you have a flat front tire on a road covered with snow or ic e
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and f it tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
4
5
1
2
3
Page 482 of 548
4828-1. Specifications
C-HR_OM_USA_OM10684U
17-inch tires
18-inch tires
Compact spare tire
Tires and wheels
Tire size215/60R17 96H
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front tires:
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear tires:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size 17 6 1/2J
Wheel nut torque76 ft·lbf (103 N·m, 10.5 kgf·m)
Tire size 225/50R18 95V
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front tires:
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear tires:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size 18 7 J
Wheel nut torque76 ft·lbf (103 N·m, 10.5 kgf·m)
Tire size T145/90D16 106M, T145/70D18 107M
Tire inflation pressure
(Recommended cold tire
inflation pressure) 60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size
16 4 T, 18 4 T
Wheel nut torque76 ft·lbf (103 N·m, 10.5 kgf·m)