
3014-5. Using the driving support systems
4
Driving
C-HR_OM_Europe_OM10528E
WARNING
■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 serious 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 and the tires 
are allowed to rotate freely 
● When inspecting the vehicle using a drum tester such as a chassis dyna- 
mometer or speedometer tester, or when using an on vehicle wheel bal-
ancer 
● When a strong impact is applied to the front bumper or front grille, 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 
● When the tires are very worn 
● When tires of a size other than specified are installed 
● When tire chains are installed 
● When a compact spare tire or an emergency tire puncture repair kit is used 
● If equipment (snow plow, etc.) that may obstruct the radar sensor or cam- 
era sensor is temporarily installed to the vehicle 

3084-5. Using the driving support systems
C-HR_OM_Europe_OM10528E 
■ Pedestrian detection function* 
*: Depending on the region in which the vehicle was sold, the pedestrian 
detection function may not be available. 
■ Cancelation of the pre-collision braking 
● If either of the following occur while the pre-collision braking function is 
operating, it will be canceled: 
• The accelerator pedal is depressed strongly. 
• The steering wheel is turned sharply or abruptly. 
■ Conditions under which the system may operate even if there is no pos- 
sibility of a collision 
● In some situations such as the following, the system may determine that 
there is a possibility of a frontal collision and operate. 
• When passing a vehicle or pedestrian 
• When changing lanes while overtaking a preceding vehicle 
• When overtaking a preceding vehicle that is changing lanes 
The pre-collision system detects pedestri- 
ans based on the size, profile, and motion 
of a detected object. However, a pedes- 
trian may not be detected depending on
the surrounding brightness and the 
motion, posture, and angle of the 
detected object, preventing the system
from operating properly. ( P. 313) 
• When overtaking a preceding vehicle 
that is making a left/right turn 
• When passing a vehicle in an oncom- 
ing lane that is stopped to make a 
right/left turn 

3134-5. Using the driving support systems
4
Driving
C-HR_OM_Europe_OM10528E 
● In some situations such as the following, sufficient braking force may not be 
obtained, preventing the system from performing properly: 
• If the braking functions cannot operate to their full extent, such as when 
the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively 
worn, improper tire inflation pressure, etc.) 
• When the vehicle is being driven on a gravel road or other slippery sur-
face 
● Some pedestrians such as the following may not be detected by the radar 
sensor and camera sensor, preventi ng the system from operating properly*: 
• Pedestrians shorter than approximately  1 m (3.2 ft.) or taller than approx- 
imately 2 m (6.5 ft.)
• Pedestrians wearing oversized clothing (a rain coat, long skirt, etc.), mak- 
ing their silhouette obscure 
• Pedestrians who are carrying large baggage, holding an umbrella, etc.,
hiding part of their body 
• Pedestrians who are bending forward or squatting 
• Pedestrians who are pushing a stroller, wheelchair, bicycle or other vehi-
cle 
• Groups of pedestrians which are close together 
• Pedestrians who are wearing wh ite and look extremely bright 
• Pedestrians in the dark, such as at night or while in a tunnel 
• Pedestrians whose clothing appears to be nearly the same color or 
brightness as their surroundings
• Pedestrians near walls, fences, guardrails, or large objects 
• Pedestrians who are on a metal object (manhole cover, steel plate, etc.) 
on the road
• Pedestrians who are walking fast 
• Pedestrians who are changing speed abruptly 
• Pedestrians running out from behind a vehicle or a large object
• Pedestrians who are extremely close to the side of the vehicle (outside 
rear view mirror, etc.)
*: Depending on the region in which the vehicle was sold, the pedestrian 
detection function may not be available. 

4684-5. Using the driving support systems
C-HR_OM_Europe_OM10528E
WARNING
■When the TRC/VSC systems are turned off 
Be especially careful and drive at a speed appropriate to the road condi- 
tions. As these are the systems to help ensure vehicle stability and driving 
force, do not turn the TRC/VSC systems off unless necessary. 
Trailer Sway Control is part of the VSC system and will not operate if VSC 
turned off or experiences a malfunction.  
■ Replacing tires 
Make sure that all tires are of the specified size, brand, tread pattern and 
total load capacity. In addition, make sure that the tires are inflated to the 
recommended tire inflation pressure level. 
The ABS, TRC and VSC systems will not function correctly if different tires 
are installed on the vehicle.  
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer for further information when replacing tires or wheels. 
■ Handling of tires and the suspension 
Using tires with any kind of problem or  modifying the suspension will affect 
the driving assist systems, and may cause a system to malfunction. 
■ Trailer Sway Control precaution 
The Trailer Sway Control system is not able to reduce trailer sway in all situ- 
ations. 
Depending on many factors such as the conditions of the vehicle, trailer, 
road surface, and driving environment, the Trailer Sway Control system 
may not be effective. Refer to your trailer owner’s manual for information
on how to tow your trailer properly. 

4744-6. Driving tips
C-HR_OM_Europe_OM10528E
■Tire chain installation 
Observe the following precautions when installing and removing chains: 
● Install and remove tire chains in a safe location. 
● Install tire chains on the front tires. Do not install tire chains on the rear tires. 
● Install tire chains on front tires as tightly as possible. Retighten chains after 
driving 0.5   1.0 km (1/4  1/2 mile). 
● Install tire chains following the instructions provided with the tire chains.
WARNING
■Driving with snow tires 
Observe the following precautions to reduce the risk of accidents.  
Failure to do so may result in a loss of vehicle control and cause death or
serious injury. 
● Use tires of the specified size. 
● Maintain the recommended level of air pressure. 
● Do not drive at speeds in excess of the speed limit or the speed limit spec- 
ified for the snow tires being used. 
● Use snow tires on all, not just some wheels. 
■ Driving with tire chains 
Observe the following precautions to reduce the risk of accidents.  
Failure to do so may result in the vehicle being unable to be driven safely, 
and may cause death or serious injury. 
● Do not drive in excess of the speed limit specified for the tire chains being 
used, or 50 km/h (30 mph), whichever is lower. 
● Avoid driving on bumpy road surfaces or over potholes. 
● Avoid sudden acceleration, abrupt steering, sudden braking and shifting 
operations that cause sudden engine braking. 
● Slow down sufficiently before entering a curve to ensure that vehicle con- 
trol is maintained. 

6337-3. Do-it-yourself maintenance
7
Maintenance and care
C-HR_OM_Europe_OM10528E
Your vehicle is equipped with a tire pressure warning system that uses 
tire pressure warning valves and transmitters to detect low tire infla- 
tion pressure before serious problems arise. 
If the tire pressure drops below a predetermined level, the driver is 
warned by a warning light. ( P. 698)
◆Installing tire pressure warning valves and transmitters 
When replacing tires or wheels, tire pressure warning valves and 
transmitters must also be installed. 
When new tire pressure warning valves and transmitters are 
installed, new ID codes must be registered in the tire pressure 
warning computer and the tire pressure warning system must be 
initialized. Have tire pressure warning valves and transmitter ID 
codes registered by any authorized Toyota retailer or Toyota autho- 
rized repairer, or any reliable repairer. ( P. 635)
◆Initializing the tire pressure warning system 
When the tire size is changed, the tire pressure warning system 
must be initialized. 
When the tire pressure warning system is initialized, the current tire 
inflation pressure is set as the benchmark pressure.
Tire pressure warning system 

6367-3. Do-it-yourself maintenance
C-HR_OM_Europe_OM10528E
■When to replace your vehicle’s tires 
Tires should be replaced if: 
● The treadwear indicators are showing on a tire. 
● You have tire damage such as cuts, splits, cracks deep enough to expose 
the fabric, and bulges indicating internal damage 
● A tire goes flat repeatedly or cannot be properly repaired due to the size or 
location of a cut or other damage 
If you are not sure, consult with any authorized Toyota retailer or Toyota 
authorized repairer, or any reliable repairer. 
■ Replacing tires and wheels 
If the ID code of the tire pressure warning valve and transmitter is not regis- 
tered, the tire pressure warning system will not work properly. After driving for
about 20 minutes, the tire pressure warning light blinks for 1 minute and stays 
on to indicate a system malfunction. 
■ Tire life 
Any tire over 6 years old must be checked by a qualified technician even if it 
has seldom or never been used, or damage is not obvious. 
■ Routine tire inflation pressure checks 
The tire pressure warning system does not replace routine tire inflation pres- 
sure checks. Make sure to check tire inflation pressure as part of your routine 
of daily vehicle checks. 
■ If the tread on snow tires wears down below 4 mm (0.16 in.) 
The effectiveness of the tires as snow tires is lost. 

6377-3. Do-it-yourself maintenance
7
Maintenance and care
C-HR_OM_Europe_OM10528E 
■ Situations in which the tire pressure warning system may not operate 
properly 
● In the following cases, the tire pressure warning system may not operate 
properly. 
• If non-genuine Toyota wheels are used.  
• A tire has been replaced with a tire t hat is not an OE (Original Equipment) 
tire. 
• A tire has been replaced with a tire that is not of the specified size. 
• Tire chains, etc., are equipped.
• An auxiliary-supported run-flat tire is equipped. 
• If a window tint that affects the radio wave signals is installed. 
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings. 
• If the tire inflation pressure is extremely higher than the specified level. 
• If wheels without the tire pressure  warning valves and transmitters are 
used. 
• If the ID code on the tire pressure warning valves and transmitters is not 
registered in the tire pressure warning computer. 
● Performance may be affected in the following situations. 
• Near a TV tower, electric power plant, gas station, radio station, large dis- 
play, airport or other facility that  generates strong radio waves or electri- 
cal noise.
• When carrying a portable radio, cellular phone, cordless phone or other 
wireless communication device. 
● When the vehicle is parked, the time taken for the warning to start or go off 
could be extended. 
● When tire inflation pressure declines rapidly for example when a tire has 
burst, the warning may not function.