4637-2. Steps to take in an emergency
7
When trouble arises
■When the electronic key does 
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in 
the customization setting. If it is 
off, turn the function on. (Custom-
izable features:  P.494)
●Check if battery-saving mode is 
set. If it is set, cancel the function. 
( P.133)
■Unlocking the door
Use the mechanical key 
( P.114) in order to perform the 
following operations: 1
Locks all the doors
2 Unlocks all the doors
Turning the key unlocks the driver’s 
door. Turning the key again unlocks 
the other doors.
■Key linked functions
1 Closes the windows and the 
moon roof
* (turn and hold)
2 Opens the windows and the 
moon roof
* (turn and hold)
These settings mus t be customized 
at your Toyota dealer.
*: If equipped
If  the electronic key 
does not operate prop-
erly
If communication between 
the electronic key and vehi-
cle is interrupted ( P.133) 
or the electronic key cannot 
be used because the battery 
is depleted, the smart key 
system and wireless remote 
control cannot be used. In 
such cases, the doors can 
be opened and the engine 
can be started by following 
the procedure below.
Locking and unlocking 
the doors 
         
        
        4677-2. Steps to take in an emergency
7
When trouble arises
traffic.
■When the battery is removed or 
discharged
●Information stored in the ECU is 
cleared. When the battery is 
depleted, have the vehicle 
inspected at you r Toyota dealer.
●Some systems may  require initial-
ization. ( P.507)
■When removing the battery ter-
minals
When the battery terminals are 
removed, the information stored in 
the ECU is cleared . Before remov-
ing the battery terminals, contact 
your Toyota dealer.
■Charging the battery
The electricity stor ed in the battery 
will discharge gradu ally even when 
the vehicle is not i n use, due to nat-
ural discharge and the draining 
effects of certain electrical appli-
ances. If the vehicle is left for a long 
time, the battery may discharge, 
and the engine ma y be unable to 
start. (The battery recharges auto-
matically during driving.)
■After jump starting the vehicle 
(Vehicles with Stop & Start sys-
tem)
Be sure to disable the Stop & Start 
system so that the battery can be 
charged. ( P.265)
■When recharging or replacing 
the battery
●In some cases, i t may not be pos-
sible to unlock the doors using the 
smart key system when the bat-
tery is discharged. Use the wire-
less remote control or the 
mechanical key to lock or unlock 
the doors.
●The engine may not start on the 
first attempt after the battery has 
recharged but will  start normally 
after the se cond attempt. This is 
not a malfunction.
●The engine switch mode is memo- rized by the vehicle. When the 
battery is reconnected, the system 
will return to the mode it was in 
before the bat
tery was dis-
charged. Before disconnecting the 
battery, turn the engine switch off.
If you are unsure what mode the 
engine switch wa s in before the 
battery discharged, be especially 
careful when reconnecting the 
battery.
●Vehicles with power back door: 
The power back door must be ini-
tialized. ( P.127)
●Vehicles with Stop & Start system: 
The Stop & Start system may not 
automatically stop the engine for 
up to an hour.
■When replacing the battery
●Use a Central Degassing type bat-
tery (European Regulations).
●Vehicles with Stop & Start system: 
Use a genuine battery specifically 
designed for use with the Stop & 
Start system or  a battery with 
equivalent specifications to a gen-
uine battery. If an unsupported 
battery is used, Stop & Start sys-
tem functions may be restricted to 
protect the battery.
Also, battery per formance may 
decrease and the engine may not 
be able to restart. Contact your 
Toyota dealer for details.
●Vehicles without Stop & Start sys-
tem: Use a battery that the case 
size is same as the previous one 
(LN3), 20 hour rate capacity 
(20HR) is equivalent (70Ah) or 
greater, and per formance rating 
(CCA) is equivalent (603A) or 
greater.
Vehicles with Stop & Start system: 
Use a battery that the case size is 
same as the previous one (LN3), 20 
hour rate capacity (20HR) is equiva-
lent (65Ah) or greater, and perfor-
mance rating (CCA) is equivalent 
(603A) or greater.
• If the sizes differ, the battery can- not be properly secured. 
         
        
        537Alphabetical Index
RCTA (Rear Cross Traffic Alert)........................................... 436
Seat belt ....................... 434, 435
Warning lights ........................ 431 ABS ...................................... 433
Brake hold operated indicator........................................... 438
Brake Override System ........ 433
Brake system ....................... 431
Charging system .................. 432
Drive-Start Control ............... 433
Electric power steering ......... 433
High coolant temperature ..... 431
Intuitive parking assist OFF indi- cator ................................... 436
Low engine oil pressure ....... 432
Low fuel level ....................... 434
LTA indicator ......................... 436
Malfunction indicator lamp ... 432
Parking brake indicator ........ 438
PKSB OFF indicato r ............. 437
Pre-collision system ............. 437
RCTA OFF indicator ............. 436
Seat belt reminder light 434, 435
Slip indicator......................... 438
SRS ...................................... 432
Stop & Start cancel indicator 436
Tire pressure ........................ 435
Warning message..................... 95
Warning messages................. 442
Washer Adding .................................. 392
Preparing and c hecking before 
winter.................................. 314
Switch........................... 216, 219
Washing and waxing .............. 370
Weight Cargo capacity ..................... 184
Load limits ............................ 184
Weight .................................. 474
Wheels ..................................... 407 Size ...................................... 479 Window lock switch ...............164
Windows
Power windows ....................162
Rear window defogger .........324
Washer .........................216, 219
Windshield defogger ..............324
Windshield wiper de-icer .......324
Windshield wipers Rain-sensing windshield wipers...................................216, 219
Winter driving tips ..................314
Wireless charger.....................350
Wireless remote control Battery-Saving Function .......132
Locking/Unlocking ................ 113
Replacing the battery ...........410
For infor mation regarding the equipment listed 
below, refer to the “MUL-
TIMEDIA OWNER’S MAN-
UAL”.
· Navigation system
· Audio/visual system
· Rear view monitor system
· Toyota parking assist monitor
· Panoramic view monitor