2021 TOYOTA TUNDRA trailer

5007-2. Steps to take in an emergency
(If equipped)
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-collision
brake system operation is stopped.
Turn the VSC on. ( P. 323)
(If equipped)
Indicates that the pre-collision system is tempo-
rarily unavailable.
Please wait until the system returns. If the
message does not disappear, the system
may be malfunctioning. Have the vehicle
inspected by your Toyota dealer immedi-
ately.
(If equipped)
Indicates that the pre-collision system sensor is
dirty, covered with ice, etc.
Remove any dirt, ice, etc.
Indicates a malfunction in the RCTA (Rear Cross
Traffic Alert).
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates that the VSC ECU or G sensor is not
communicating with trailer brake control system.
Indicates a malfunction in the VSC system.
Have the vehicle inspected by your Toyota
dealer immediately.
Warning messageDetails/Actions
VSC Turned Off
Pre-Collision Brake
System
Unavailable
Pre-Collision System Unavailable
Pre-Collision System Unavailable
Clean Sensor
Rear Cross Traffic Alert Malfunction
Visit Your Dealer
Trailer Brake Error. If Towing,
Come to a Safe Stop
with Manual Controls.
Contact dealer.

5017-2. Steps to take in an emergency
7
When trouble arises
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your veh icle.
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displaye d even if
vehicle-to-vehicle distance decreases:
● When your vehicle and the vehicle ahead are traveling at the sa me speed or
the vehicle ahead is traveling more quickly than your vehicle
● When the vehicle ahead is traveling at a very low speed
● Immediately after cruise control speed is set
● At the instant the accelerator pedal is depressed
■
Conditions that the tire pressure warning system may not functi on
properly
 P. 4 3 2
Indicates that an internal switch failure of trailer
brake control system, an over current detected by
trailer brake control system.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that an internal microprocessor error,
output circuit to trailer brakes unintended current,
or manual brake output slider is stuck or broken
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the output circuit has reverse volt-
age, or the internal trailer brake control system
temperature is too high.
Check trailer wiring issue, check trailer
connection. If there is still a problem, have
the vehicle inspected by your Toyota dealer
immediately.
Warning messageDetails/Actions
Trailer Brake Error.
If Towing,
Come to a Safe Stop
Contact dealer.
Trailer Wiring,
Type, or Connection
fault.
See Owner’s manual.

5688-2. Customization
■Trailer brake controller* ( P. 327)
*: If equipped
■
Door lock* (  P. 127)
*: If equipped
FunctionDefault settingCustomized
setting
TBC trailer type Electric
0-4999lb Electric
5000+ lbO—O
E-O-H
0-4999lb
E-O-H
5000+ lb
TBC OFF
123
FunctionDefault settingCustomized setting
Unlocking using a key Driver’s door
unlocked in one step, all doors
unlocked in two
steps All doors
unlocked in one step—— O
Speed-detecting auto-
matic door lock function On Off—O O
Shifting gears to position
other than P locks all
doors Off On
—O O
Shifting gears to P
unlocks all doors
On Off—O O
Opening the driver’s door
unlocks all doors Off On—O O
123

610Alphabetical index
Tires .......................................... 426Chains................................... 332
Checking ............................... 426
If you have a flat tire ............. 506
Inflation pressure .................. 548
Information ............................ 554
Replacing .............................. 506
Rotating tires......................... 426
Size ....................................... 548
Snow tires ............................. 333
Spare tire .............................. 507
Tire pressure warning system ......... ....................... 427
Warning light ......................... 487
Tissue pocket........................... 368
Tools ......................................... 507
Top tether strap ................... 70, 73
Total load capacity .......... 195, 538
TOW/HAUL switch ... ................ 228
Towing Bumper towing ...................... 207
Dinghy towing ....................... 216
Emergency towing ................ 481
Fifth wheel trailer .................. 206
Trailer brake controller .......... 327
Trailer towing ........................ 197
TRAC (Traction Control) ......... 320
Toyota Safety Sense P ............ 252 Automatic High Beam ........... 239
Dynamic radar cruisecontrol................................. 280
LDA (Lane Departure Alert)........ 272
PCS
(Pre-Collision System)........ 260
Trailer brake controller ........... 327
Transmission ........................... 225 Automatic transmission......... 225
If the shift lever cannot be shifted from P ..................... 229
S mode ................................. 227 Trip meters ....................... 105, 107
Turn signal lights .................... 232
Replacing light
bulbs................... 463, 468, 470
Turn signal lever ................... 232
Wattage ................................ 550
USB charging ports................. 382
USB port
*
Vanity lights Vanity lights .......................... 378
Wattage ................................ 550
Vanity mirrors .......................... 378
Vehicle data recording ................ 9
Vehicle identification number ................................... 541
Vehicle Stability Control (VSC) ...................................... 320
Ventilators
(seat ventilators) ................... 354
Voice command system
*
VSC (Vehicle Stability Control) .... 320
U
V

611Alphabetical index
Warning buzzersBrake system ....... ......... 485, 495
Downshifting ......................... 231
Intuitive parking assist .......... 299
Key reminder ........................ 218
Light reminder ....................... 238
Open door ............................. 494
Open moon roof .................... 181
PCS (Pre-Collision System)........ 488
Seat belt reminder ................ 486
Warning lights.......................... 101 ABS....................................... 486
Brake system ....... ................. 485
Charging system ................... 485
LDA (Lane Departure Alert)........ 488
Low fuel level ........................ 486
Malfunction indicator lamp .... 485
Master warning light.............. 486
Parking brake warning light ....................... 486
PCS (Pre-Collision System)........ 488
Seat belt reminder light ........ 486
Slip indicator ......................... 487
SRS ...................................... 485
Tire pressure......................... 487
Warning messages .................. 493
Washer...................................... 245 Checking ............................... 425
Low windshield washer fluid
warning message ............... 495
Preparing and checking
before winter....................... 331
Switch ................................... 245 Washing and waxing ............... 400
Weight
Cargo capacity...................... 195
Cargo weight rating .............. 590
Gross axle weight rating ....... 592
Gross combination weight rating ....................... 201
Gross vehicle weight rating .................................. 592
Load limits ............................ 195
Towing capacity ............ 195, 201
Trailer Weight Rating ......................... 195, 201
TWR ............................. 195, 201
Vehicle capacity weight ......................... 195, 538
Wheels Replacing wheels ................. 446
Size....................................... 548
Window glasses ...................... 172
Window lock switch ................ 172
Windows................................... 172 Back window......................... 175
Back window defogger ..................... 342, 349
Power back window .............. 176
Power windows..................... 172
Windshield wiper
de-icer ............................ 343, 350
Windshield wipers ................... 245
Winter driving tips ................... 331
Wireless remote control key Locking/Unlocking ................ 128
Replacing the battery............ 451
WMA disc
*
W
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER
’S MANUAL”.