Page 627 of 812

6277-3. Do-it-yourself maintenance
7
Maintenance and care
C-HR_OM_Europe_OM10528E
■Before recharging 
When recharging, the battery produces hydrogen gas which is flammable and 
explosive. Therefore, observe  the following before recharging: 
● If recharging with the battery installed on the vehicle, be sure to disconnect 
the ground cable. 
● Make sure the power switch on the charger is off when connecting and dis- 
connecting the charger cables to the battery. 
■ After recharging/reconnecting the battery (vehicles with a smart entry & 
start system) 
● The engine may not start. Follow the procedure below to initialize the sys- 
tem. 
Shift the shift lever to P (Multi drive) or N (manual transmission). 
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart entry & start system may not be possi- 
ble immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors. 
● Start the engine with the engine switch in ACCESSORY mode. The engine 
may not start with the engine switch turned off. However, the engine will
operate normally from the second attempt. 
● The engine switch mode is recorded by the vehicle. If the battery is recon- 
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine 
before disconnecting the battery. Take extra care when connecting the bat- 
tery if the engine switch mode prior to discharge is unknown. 
If the system will not start even after multiple attempts at all methods above, 
contact any authorized Toyota retailer or Toyota authorized repairer, or any 
reliable repairer.
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        Page 652 of 812
6527-3. Do-it-yourself maintenance
C-HR_OM_Europe_OM10528E
Wireless remote control/electronic key  
battery
● Flathead screwdriver 
● Small flathead screwdriver 
● Lithium battery CR1620 (vehicles without a smart entry & start sys- 
tem), or CR2032 (vehicles with a smart entry & start system)
Vehicles without a smart entry & start system 
Remove the cover.
To prevent damage to the key, 
cover the tip of the screwdriver with 
a rag.
Remove the battery cover.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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        Page 653 of 812
6537-3. Do-it-yourself maintenance
7
Maintenance and care
C-HR_OM_Europe_OM10528E
Remove the depleted battery.
Insert a new battery with the “+” 
terminal facing up.
When installing, reverse the steps listed.
Vehicles with a smart entry & start system 
Release the lock and take out 
the mechanical key. 
Remove the cover.
Use an appropriate sized flathead 
screwdriver. Forceful prying may
deform the cover. 
To prevent damage to the key, 
cover the tip of the screwdriver with
a rag.
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        Page 654 of 812

6547-3. Do-it-yourself maintenance
C-HR_OM_Europe_OM10528E
Remove the depleted battery.
When removing the cover, if the 
battery cannot be seen due to the
electronic key module attaching to 
the upper cover, remove the elec- 
tronic key module from the cover
so that the battery is visible as 
shown in the illustration. 
Use an appropriate sized flathead 
screwdriver when removing the
battery. 
Insert a new battery with the “+” 
terminal facing up.
When installing, reverse the steps listed.
■ Use a CR1620 (vehicles without a smart entry & start system) or CR2032 
(vehicles with a smart entry & start system) lithium battery 
● Batteries can be purchased at any authorized Toyota retailer or Toyota 
authorized repairer, or any reliable repairer, local electrical appliance shops 
or camera stores. 
● Replace only with the same or equivalent type recommended by the manu- 
facturer. 
● Dispose of used batteries according to local laws. 
■ If the key battery is depleted  
The following symptoms may occur: 
● The smart entry & start system (if equipped), push button start (if equipped) 
and wireless remote control will not function properly. 
● The operational range will be reduced.
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        Page 679 of 812

679
8When trouble arises
C-HR_OM_Europe_OM10528E 
8-1. Essential information 
Emergency flashers ........... 680 
If your vehicle has  
to be stopped  
in an emergency .............. 681 
8-2. Steps to take  
in an emergency 
If your vehicle needs  
to be towed ...................... 683 
If you think something  
is wrong ........................... 691 
Fuel pump shut off  
system ............................. 692 
If a warning light turns  
on or a warning  
buzzer sounds ................. 693 
If a warning message  
is displayed ...................... 704 
If you have a flat tire  
(vehicles with  
an emergency tire  
puncture repair kit)........... 710 
If you have a flat tire  
(vehicles with  
a spare tire) ..................... 730 
If the engine will not  
start.................................. 745 
If the electronic key does  
not operate properly 
(vehicles with a smart 
entry & start system)........ 747 
If the vehicle battery  
is discharged ................... 750 
If your vehicle overheats .... 756 
If the vehicle becomes  
stuck ................................ 759 
         
        
        
     
        
        Page 682 of 812
6828-1. Essential information
C-HR_OM_Europe_OM10528E
Vehicles without a smart entry 
& start system: Stop the engine 
by turning the engine switch to 
the “ACC” position. 
Vehicles with a smart entry & 
start system: To stop the 
engine, press and hold the 
engine switch for 2 consecutive 
seconds or more, or press it 
briefly 3 times or more in suc- 
cession. 
Stop the vehicle in a safe place by the road.
4
Press and hold for 2 seconds or  
more, or press briefly 3 times or  more
4
WARNING
■ If the engine has to be turned off while driving 
● Power assist for the brakes and steering wheel will be lost, making the 
brake pedal harder to depress and the steering wheel heavier to turn. 
Decelerate as much as possible before turning off the engine. 
● Vehicles without a smart entry & start system: Never attempt to remove 
the key, as doing so will lock the steering wheel.
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        Page 690 of 812

6908-2. Steps to take in an emergency
C-HR_OM_Europe_OM10528E
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type 
truck 
● Vehicles without a smart entry & start system: Do not tow the vehicle from 
the rear when the engine switch is in the “LOCK” position or the key is 
removed.
The steering lock mechanism is not strong enough to hold the front wheels 
straight. 
● Vehicles with a smart entry & start system: Do not tow the vehicle from the 
rear when the engine switch is off. The steering lock mechanism is not 
strong enough to hold the front wheels straight. 
● When raising the vehicle, ensure adequate ground clearance for towing at 
the opposite end of the raised vehicle. Without adequate clearance, the 
vehicle could be damaged while being towed. 
■ To prevent damage to the vehicle when towing with a sling-type truck 
Do not tow with a sling-type truck,  either from the front or rear. 
■ To prevent damage to the vehicle during emergency towing 
Do not secure cables or chains to the suspension components. 
■ When towing a vehicle equipped with a Stop & Start system (if 
equipped) 
Vehicles without a smart entry & start system: When it is necessary to tow 
the vehicle with all 4 wheels contacting the ground, perform the following 
procedure before towing the vehicle to protect the system. 
Turn the engine switch off once, and then start the engine. If the engine 
does not start, turn the engine switch to “ON” position. 
Vehicles with a smart entry & start system: When it is necessary to tow the 
vehicle with all 4 wheels contacting the ground, perform the following proce- 
dure before towing the vehicle to protect the system. 
Turn the engine switch off once, and then start the engine. If the engine 
does not start, turn the engine switch to IGNITION ON mode. 
         
        
        
     
        
        Page 708 of 812

7088-2. Steps to take in an emergency
C-HR_OM_Europe_OM10528E 
■ If the following messages are shown (AWD models only) 
The system may be an overheated. Reduce the vehicle speed or stop the 
vehicle in a safe place. 
• “AWD System Overheated 2WD Mode Engaged” 
• “AWD System Overheated Switching to 2WD Mode” 
■ If “Oil Maintenance Required Soon” is shown 
Indicates that the engine oil is scheduled to be changed. (The indicator will 
not work properly unless the message has been reset.) 
Check the engine oil, and change if necessary. After changing the engine oil, 
the message should be reset. ( P. 621) 
■ If “Oil Maintenance Required Visit Your Dealer.” is shown 
Indicates that the engine oil should be changed. (After the engine oil is 
changed and the message has been reset.) 
Check and change the engine oil, and oil filter by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable repairer. After changing
the engine oil, the message should be reset. ( P. 621) 
■ If “A New Key has been Registered Contact Your Dealer for Details” is 
shown (vehicles with a smart entry & start system) 
This message will be displayed each time the driver's door is opened when 
the doors are unlocked from the outside for approximately one week after a
new electronic key has been registered. 
If this message is displayed but you have not had a new electronic key regis- 
tered, ask any authorized Toyota retailer  or Toyota authorized repairer, or any 
reliable repairer to check if an unknown electronic key (other than those in 
your possession) has been registered.