2023 TOYOTA TUNDRA HYBRID warning light

Owners Manual_USA_M0C052_en
591What to do if... (Troubleshooting)
Is the power switch in ON?
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON. ( P.201)
 Is the window lock switch
pressed?
The power window except for the
one at the driver’s seat cannot be
operated if the win dow lock switch
is pressed. ( P.162)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the
hybrid system is not operat-
ing) for a period of time.
( P.198)
 The seat belt reminder light is
flashing
Are the driver and the front passen-
ger wearing the seat belts?
( P.507)
 The parking brake indicator is
on
Is the parking br ake released?
(  P.205)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.501, 511)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the alarm
sounds. ( P. 8 2 )
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors using the
entry function or wireless
remote control.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)
 Is the message displayed on
the multi-information display?
Check the message on the multi-
information display. ( P.501)
 When a warning light turns on
or a warning message is dis-
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The windows do not open
or close by operating the
power window switches
The power switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is a ctivated and
the horn sounds
A warning buzzer sounds
when leaving the vehicle
A warning light turns on
or a warning message is
displayed

Owners Manual_USA_M0C052_en
593Alphabetical Index
Alphabetical Index
A
A/C ........................................... 400Air conditioning filter ............. 479
Automatic air conditioning sys-tem ..................................... 400
Front seat concentrated airflow mode (S-FLOW) ................. 404
ABS (Anti-lock Brake System) ............................................... 374Warning light ........................ 503
Acoustic vehicle alerting system ................................................. 75
Active front spoiler ................ 388
Adaptive Variable Suspension System (AVS) ........................ 375
AHB (Automatic High Beam) . 214
AI-SHIFT .................................. 200
Air conditioning filter ............. 479
Air conditioning system ........ 400 Air conditioning filter ............. 479
Automatic air conditioning sys-tem ..................................... 400
Front seat concentrated airflow mode (S-FLOW) ................. 404
Air suspension ....................... 355
Airbags ...................................... 36 Airbag operating conditions.... 38
Airbag precautions for your child............................................. 41
Correct driving posture ........... 27
Curtain shield airbag operating conditions ............................. 39
Curtain shield airbag precautions ............................................. 41
Front passenger occupant clas- sification system ................... 46
General airbag precautions .... 41
Locations of airbags ............... 36
Modification and disposal of air- bags ..................................... 44
Side airbag operating conditions .............................................39
Side airbag precautions..........41
Side and curtain shield airbags operating conditions .............39
Side and curtain shield airbags precautions ...........................41
SRS airbags ...........................36
SRS warning light .................502
Alarm .........................................82 Warning buzzer ....................501
Ambient lights.........................410
Anchor brackets ... ..............55, 58
Antennas (smart key system)128
Anti-lock Brake System (ABS) ...............................................374Warning light.........................503
Approach warning ..................263
Armrest ......... ......................... ..425
Assist grips .............................425
Audio system-linked display ...98
AUTO LSD system ..................363
Automatic air conditioning sys- tem .........................................400
Automatic headlight leveling system ...................................212
Automatic High Beam ............214
Automatic light control system ............................................... 211
Automatic transmission.........200 If th e s hif t le ver ca n no t b e s hif te d from P .................................201
S mode .................................202
TOW HAUL switch................200
Auxiliary boxes .......................416
Average fuel economy .............97
Average vehicle speed .............98
AVS (Adaptive Variable Suspen- sion System) .........................375

594Alphabetical Index
Owners Manual_USA_M0C052_en
B
Back window Power back window ............. 163
Back-up lights Replacing light bulbs ............ 490
Battery (12-volt battery) ......... 463 Battery checking................... 463
If the 12-volt battery is dis-charged .............................. 529
Preparing and c hecking before
winter.................................. 395
Warning light ........................ 502
Battery (traction battery) ......... 76
Bed hooks ............ ................... 417
Bed lamp ................................. 410 Replacing light bulbs ............ 490
Blind Spot Monitor (BSM) ...... 267 Enabling/disabling the system........................................... 269
Trailer settings ...................... 100
Boost Meter .............................. 94
Bottle holders ......................... 415
Brake Brake hold ............................ 208
Fluid ............................. 461, 546
Parking brake ....................... 205
Regenerative braking ............. 74
Warning light ........................ 501
Brake assist ............................ 374
Brake hold ............................... 208
Brake Override System .......... 172
Break-in tips ........ ................... 172
Brightness control Instrument panel light control . 94
BSM (Blind Spot Monitor) ...... 267 Enabling/disabling the system........................................... 269
Trailer settings ...................... 100
C
Camper information ...............585
Care..................................442, 445 Aluminum wheel ornaments .442
Aluminum wheels .................442
Exterior .................................442
Hybrid battery (tr action battery)
air intake vents ...................481
Interior ..................................445
Seat belts .............................445
Cargo and luggage .................178
Cargo capacity ........................180
Cargo lamp ..............................410 Replacing light bulbs ............490
Chains......................................397
Child restraint system ..............53 Fixed with a LATCH system ...60
Fixed with a seat belt..............62
Front passenger occupant clas-sification system ...................46
Points to remember ................53
Riding with children ................52
Types of child restraint system installation method ...............55
Using an anchor bracket ........58
Child safety ...............................52 12-volt battery precautions ...464
Airbag precautions .................41
Battery precautions ..............533
Child restraint system .............55
Heated steering wheel and seat heater precautio ns..............407
How your child should wear the seat belt ................................30
Panoramic moon r oof ...........166
Power back window..............163
Power window lock switch ....162
Power window precautions...161
Rear door child-protectors .... 116
Removed electronic key battery precautions .........................485

Owners Manual_USA_M0C052_en
Alphabetical Index595
Seat belt extender precautions............................................. 30
Seat belt precautions ............. 52
Child-protectors .. ................... 116
Cleaning .......................... 442, 445 Aluminum wheel ornaments . 442
Aluminum wheels ................. 442
Exterior ................................. 442
Interior .................................. 445
Radar sensor........................ 226
Seat belts ............................. 445
Clock ......................................... 91
Coat hooks .............................. 426
Condenser .............................. 461
Console box ............................ 415
Console box light ................... 410
Consumption screen.............. 106
Coolant .................................... 460 Checking .............................. 460
Cooling system ...................... 460 Engine overheating .............. 535
Coussins gonflables Modification et é limination en fin
de vie des coussins gonflables ........................................... 583
Crawl Control .......................... 365
Cruise control Dynamic radar cruise control with full-speed range .......... 256
Cup holders ............................ 414
Current fuel consumption ....... 97
Curtain shield airbags ............. 36
Customizable features ........... 561D
DAC ..........................................372
Daytime running light system211
Daytime running lights Replacing light bulbs ............490
Deck divider ............................417
Defogger Outside rear view mirrors .....401
Rear window.........................401
Windshield ............................401
Differential ...............................546
Digital Rear-view Mirror .........146
Dimension ...............................540
Dinghy towing .........................194
Display Dynamic radar cruise control with full-speed range ..........256
Head-up display ...................102
Intuitive parking assist ..........274
LTA (Lane Tracing Assist) .....248
Multi-information display.........95
Warning messages ............... 511
Display change button .............93
Distance until next engine oil change .....................................93
Do-it-yourself maintenance ...449
Door courtesy lights...............410
Door lock Side doors ............................ 113
Smart key system .................128
Wireless remote control........ 111
Doors Automatic door locking and unlocking system ................ 116
Door glasses ........................160
Door lock .............................. 113
Open door warning buzzer . 114, 11 6
Outside rear view mirrors .....155
Rear door child-protectors .... 116
Side doors ............................ 113

596Alphabetical Index
Owners Manual_USA_M0C052_en
Downhill assist control system ............................................... 372
Drive distance ........................... 98
Drive information ..................... 98
Drive-start control .................. 177
Driving ..................................... 171 Break-in tips ......................... 172
Correct driving posture ........... 27
Hybrid Electric Vehicle driving tips...................................... 390
Procedures ........................... 171
Winter drive tips ................... 395
Driving information display ..... 97
Driving mode sel ect switch ... 358
Driving position memory ....... 137 Memory recall function ......... 139
Power easy access system .. 137
Driving range ............................ 97
Dynamic radar cruise control with full-speed range ........... 256Approach warning ................ 263
Warning message ................ 265E
ECB (Electronically Controlled Brake System).......................374Warning light.........................501
EDR (Event data recorder) .........8
Elapsed time .............................98
Electric motor (t raction motor)73
Electric Power Steering (EPS) ...............................................375Warning light.........................503
Electronic key ......................... 110 Battery-saving function .........129
If the electronic key does not operate properly .................527
Replacing the battery ...........484
Electronic sunshade ..............164
Electronically Controlled Brake System (ECB) ........................374Warning light.........................501
Electronically modulated air sus- pension ..................................355
Emergency flashers ...............494
Emergency tire puncture .......515
Emergency, in case of If a warning buzzer sounds ..501
If a warning light turns on .....501
If a warning message is dis-played ................................. 511
If the 12-volt battery is dis- charged ..............................529
If the electronic key does not operate properly .................527
If the fuel door cannot be opened ...........................................526
If the hybrid sys tem will not start
...........................................524
If the vehicle is submerged or water on the road is rising ..495
If you have a flat tire .............515
If you lose your keys.............526
If you think something is wrong

Owners Manual_USA_M0C052_en
Alphabetical Index597
........................................... 499
If your vehicle becomes stuck ........................................... 538
If your vehicle has to be stopped in an emergency................. 494
If your vehicle needs to be towed ........................................... 497
If your vehicle overheats ...... 535
Engine ..................................... 542 ACC...................................... 198
Compartment ....................... 457
How to start the hybrid system........................................... 195
If the hybrid sy stem will not start
........................................... 524
If your vehicle has to be stopped in an emergency................. 494
Overheating.......................... 535
Power switch ........................ 195
Engine coolant ....................... 460 Capacity ............................... 544
Checking .............................. 460
Preparing and c hecking before
winter.................................. 395
Engine coolant temperature gauge....................................... 91
Engine oil Capacity ............................... 543
Checking .............................. 458
Warning light ........................ 502
Engine oil pressure gauge ...... 91
Engine switch (power switch)195 Auto power off function ........ 198
Changing the power switch modes ................................ 198
If your vehicle has to be stopped in an emergency................. 494
Starting the hybrid system.... 195
Enhanced Vehicle Stability Con- trol (Enhanced VSC) ............ 375
Enhanced VSC (Enhanced Vehi- cle Stability Control) ............ 375 EPS (Electric Po
wer Steering)
...............................................375 Warning light.........................503
Event data recorder (EDR) .........8
F
Flat tire.....................................515 Tire pressure w arning system
...........................................468
Floor mats .................................26
Fluid Automatic transm ission ........545
Brake ....................................546
Washer .................................462
Fog light Replacing light bulbs ............490
Switch ...................................214
Footwell lights ........................410
Four-wheel drive system .......361
Front fog light Replacing light bulbs ............490
Front passenger occupant clas- sification system ....................46
Front seats ..............................133 Adjustment ...........................133
Cleaning ...............................445
Correct driving posture ...........27
Driving position memory .......137
Head restraints .....................140
Memory recall function .........139
Power easy access system ..137
Seat heaters ....... ..................407
Seat position memory...........137
Seat ventilators.....................407
Front tray light ........................410
Front turn signal lights ..........204 Turn signal lever ...................204
Front turn signal/parking lights Replacing light bulbs ............490
Wattage ................................548
Fuel Capacity ...............................542

598Alphabetical Index
Owners Manual_USA_M0C052_en
Fuel gauge ............................. 91
Information ........................... 549
Opening the fuel tank cap .... 222
Type ..................................... 542
Warning light ........................ 507
Fuel consumption Average fuel economy ........... 97
Current fuel consumption ....... 97
Fuel door When the fuel door cannot be opened ............................... 526
Fuel economy ......... .................. 97
Fuel gauge ................................ 91
Fuses ....................................... 486
G
Garage door opener ............... 433
Gauges ...................................... 91
Glove box ................................ 413
Glove box light ....................... 410
H
Head restraints ....................... 140
Head-up display ..................... 102 Driving support system display area .................................... 104
HUD (Head-up display) switch ........................................... 103
Hybrid System Indicator ....... 105
Navigation system-linked dis- play area ............................ 104
Outside temperature ............ 102
Pop-up display ..................... 104
Settings ................................ 103
Headlights Automatic High Beam system........................................... 214
Light switch .......................... 211
Replacing light bulbs ............ 490
Heated steering wheel ........... 407
Heaters Automatic air conditioning sys-
tem .....................................400
Heated steering wheel..........407
Outside rear view mirrors .....401
Seat heaters ....... ..................407
High mounted stoplight Replacing light bulbs ............490
High-voltage components .......76
Hill-start assist control...........375
Hood ........................................456 Open.....................................456
Hooks Coat hooks ...........................426
Retaining hooks (floor mat) ....26
Horn .........................................144
HUD (Head-up display) switch ...............................................103
Hybrid battery (traction battery) Location ..................................76
Warning message...................79
Hybrid battery (traction battery) air intake vents .......................79Cleaning ...............................481
Hybrid Electric Vehicle driving tips .........................................390
Hybrid Power Meter ..................94
Hybrid system .... .......................73
Acoustic vehicle alerting system .............................................75
Emergency shut off system ....79
High voltage components .......76
Hybrid system precautions .....76
If the hybrid sys tem will not start
...........................................524
Power (ignition) switch .........195
Regenerative braking .............74
Starting the hybrid system ....195
Warning lights .......................502
Hybrid System Indicator ..97, 105

Owners Manual_USA_M0C052_en
Alphabetical Index599
I
IdentificationVehicle.................................. 541
Ignition switch (power switch) ............................................... 195Auto power off function ........ 198
Changing the power switch modes ................................ 198
If your vehicle has to be stopped in an emergency................. 494
Starting the hybrid system.... 195
Immobilizer system .................. 81
Indicators .................................. 89
Initialization Items to initialize................... 571
Parking Support Brake ......... 292
Power windows .................... 160
Tire pressure warning system........................................... 470
Inside rear view mirror........... 145
Instrument panel light control. 94
Intercooler ............................... 461
Intercooler coolant ................. 460 Capacity ............................... 544
Checking .............................. 460
Interior lights .......................... 410 Wattage ................................ 548
Interior lights list .................... 410
Intuitive parking assist .......... 274 Enabling/disabling the system........................................... 275
Function ............................... 274
Warning lights....................... 504
Warning message ................ 276
J
Jam protection function Electronic sunshade ............. 165
Panoramic moon roof ........... 165
Power running boards .......... 118
Power windows .................... 160
K
Keyless entrySmart key system .................128
Wireless remote control........ 111
Keys ......................................... 110 Battery-saving function .........129
Electronic key ....................... 110
If the electronic key does not operate properly .................527
If you lose your keys.............526
Key number plate ................. 110
Keyless entry ........ 113, 120, 128
Mechanical key..................... 110
Power switch ........................195
Replacing the battery ...........484
Warning buzzer ....................128
Wireless remote control........ 111
Knee airbags .............................36
L
Lane Tracing Assist (LTA) ......242 Operation..............................242
Warning lights .......................504
Warning messages ...............252
Language (multi-information dis- play) .........................................99
LATCH anchors.........................60
Lever Auxiliary catch lever .............456
Hood lock release lever ........456
Shift lever .............................201
Turn signal lever ...................204
Wiper lever ...........................218
License plate lights Light switch........................... 211
Replacing light bulbs ............490
Light bulbs Replacing .............................489
Lights Ambient lights ....................... 411
Automatic High Beam system