2020 TOYOTA 4RUNNER phone

1063-1. Key information
4RUNNER (U)■
Key battery depletion
Vehicles with a smart key system
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin wh en the engine
stops.
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( P. 442)
• The smart key system or the wireless remote control does not o perate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 3 ft. (1
m) of the following electrical appliances that produce a magnet ic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
Vehicles without a smart key system
If the wireless remote control function does not operate, the b attery may be
depleted. Replace the battery when necessary. ( P. 442)
■ Precautions when disconnecting the battery (vehicles with a sma rt key
system)
● In some cases, it may not be possible to unlock the doors using the smart
key system immediately after the battery has been disconnected. Use the
wireless remote control or the mechanical key to lock or unlock the doors.
● The engine may not start on the first attempt after reconnectin g the battery
but will start normally after the second attempt. This is not a malfunction.
● The engine switch mode is memorized by the vehicle. When the ba ttery is
reconnected, the system will return to the mode it was in befor e the battery
was disconnected. Before disconnecting the battery, turn the en gine switch
off.
If you are unsure what mode the engine switch was in when the b attery was
disconnected, be especially careful when reconnecting the batte ry.

1223-2. Opening, closing and locking the doors
4RUNNER (U)■
Conditions affecting operation
The smart key system uses weak radio waves. In the following si tuations, the
communication between the electronic key and the vehicle may be affected,
preventing the smart key system, wireless remote control and en gine immobi-
lizer system from operating properly. (Ways of coping: P. 510)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio stati on, large dis-
play, airport or other facility that generates strong radio wav es or electrical
noise
● When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
● When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When multiple electronic keys are in the vicinity
● When other wireless keys (that emit radio waves) are being used nearby
● When carrying the electronic key together with the following devices that
emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If window tint with a metallic content or metallic objects are attached to the
back window
● When the electronic key is placed near a battery charger or ele ctronic
devices
● When the vehicle is parked in a pay parking spot where radio wa ves are
emitted.
If the doors cannot be locked/unlocked using the smart key syst em, lock/
unlock the doors by performing any of the following:
● Bring the electronic key close to either front door handle and operate the
entry function.
● Operate the wireless remote control.
If the doors cannot be locked/unlocked using the above methods, use the
mechanical key. ( P. 510)
If the engine cannot be started using the smart key system, ref er to P. 511.

4286-3. Do-it-yourself maintenance
4RUNNER (U)■
Situations in which the tire pressure warning system may not op
er-
ate properly
●In the following cases, the tire pressure warning system may no t operate
properly.
• If non-genuine Toyota wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equip-
ment) tire.
• A tire has been replac ed with a tire that is not of the specif ied size.
• Tire chains etc . are equipped.
• If a window tint that affects the radio wave signals is instal led.
• 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 sp ecified
level.
• If the spare tire is in a location subject to poor radio wave signal
reception.
• If a large metallic object whic h can interfere with signal reception is
put near the spare tire.
• If tires not equipped with the tire pressure warning valves an d trans-
mitters are used.
• If the ID code on the tire pressure warning valves and transmi tters 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 stat ion, large
display, airport or other facilit y that generates strong radio waves or
electrical 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 s tart or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.

592Alphabetical index
4RUNNER (U)
Shift lock system ..................... 220
Side airbags ............................... 35
Side marker lights ................... 225Light switch ........................... 225
Replacing light bulbs............. 455
Wattage ................................ 531
Side mirrors ............................. 160 Adjusting and folding ............ 160
Side turn signal lights ............. 223
Slide deck ................................. 368
Smart key system .................... 118 Antenna location ................... 118
Entry functions ...................... 110
Starting the engine................ 212
Snow tires ................................ 333
Spare tire .................................. 492 Inflation pressure .................. 530
Storage location .................... 493
Spark plug ................................ 526
Specifications .......................... 522
Speedometer .............................. 88
Steering lock ............................ 215 Column lock release ............. 215
Steering lock system
warning message ............... 215
Steering wheel ......................... 156 Adjustment ............................ 156
Storage feature ........................ 358
Storage precautions ................ 189
Stuck If the vehicle becomes stuck ................................... 520
Sun visors ................................ 370 Switches
Automatic High Beam
switch ................................. 231
Cruise control switch ............ 273
Door lock switches................ 113
Driving position memory switches ............................. 149
Emergency flashers switch ... 464
Engine switch ............... 209, 212
Fog light switch ..................... 235
Garage door opener
switches ............................. 382
Ignition switch ............... 209, 212
LDA (Lane Departure Alert) switch ................................. 265
Light switches ....................... 225
Moon roof switches............... 170
Outside rear view mirror switches ............................. 160
Power back window
switch ................................. 166
Power door lock switch ......... 113
Power window switches........ 162
Rear window and outside rear view mirror defoggers
switch ......................... 342, 348
Rear window wiper and
washer switch..................... 240
Seat heater switches ............ 353
Seat ventilator switches ........ 353
“SOS” button........................... 70
Telephone switches
*
VSC OFF switch ................... 323
Window lock switch .............. 162
Windshield wipers and washer switch.............. 237

593Alphabetical index
4RUNNER (U)
Tachometer ................................ 88
Tail lights .................................. 225Light switch ........................... 225
Telephone switches
*
Theft deterrent system
Alarm ...................................... 79
Engine immobilizer system ..... 76
Tire inflation pressure ............. 434 Maintenance data ................. 530
Warning light ......................... 481
Tire information ....................... 535 Glossary................................ 541
Size ....................................... 537
Tire identification number ..... 536
Uniform Tire Quality Grading............................... 539
Tire pressure warning system .................................... 422 Function ................................ 422
Installing tire pressure warning
valves and transmitters ...... 423
Registering ID codes ............ 424
Warning light ......................... 481 Tires .......................................... 420
Chains .................................. 332
Checking............................... 420
If you have a flat tire ............. 492
Inflation pressure .................. 530
Information............................ 535
Replacing.............................. 492
Rotating tires ........................ 421
Size....................................... 530
Snow tires ............................. 333
Spare tire .............................. 492
Tire pressure warning
system .......... ...................... 422
Warning light......................... 481
Tools ......................................... 493
Top tether strap ......................... 66
Total load capacity .................. 191
Towing Dinghy towing ....................... 208
Emergency towing ................ 470
Trailer towing ........................ 192
Toyota Safety Sense P ............ 246 Automatic High Beam ........... 231
Dynamic radar cruise
control ................................ 273
LDA (Lane Departure Alert) ....... 265
PCS (Pre-Collision System) ....... 254
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.