2020 TOYOTA TUNDRA trailer

4987-2. 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.

4997-2. 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.

5668-2. 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

606Alphabetical index
Tire pressure warning system .................................... 427 Initializing .............................. 428
Installing tire pressure
warning valves and
transmitters......................... 427
Registering ID codes ............ 429
Tire pressure warning reset
switch ................................. 428
Warning light ......................... 485
Tires .......................................... 426 Chains................................... 332
Checking ............................... 426
If you have a flat tire ............. 504
Inflation pressure .................. 546
Information ............................ 552
Replacing .............................. 504
Rotating tires......................... 426
Size ....................................... 546
Snow tires ............................. 333
Spare tire .............................. 505
Tire pressure warning system ......... ....................... 427
Warning light ......................... 485
Tissue pocket........................... 368
Tools ......................................... 505
Top tether strap ................... 70, 73
Total load capacity .......... 195, 536
TOW/HAUL switch ... ................ 228
Towing Bumper towing ...................... 207
Dinghy towing ....................... 216
Emergency towing ................ 478
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) ....... 259
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................... 461, 466, 468
Turn signal lever ................... 232
Wattage ................................ 548
USB charging ports................. 382
USB port
*
Vanity lights Vanity lights .......................... 378
Wattage ................................ 548
Vanity mirrors .......................... 378
Vehicle data recording ................ 9
Vehicle identification number ................................... 539
Vehicle Stability Control
(VSC) ...................................... 320
Ventilators (seat ventilators) ................... 354
Voice command system
*
VSC (Vehicle Stability Control) .... 320
U
V

607Alphabetical index
Warning buzzersBrake system ....... ......... 483, 493
Downshifting ......................... 231
Intuitive parking assist .......... 299
Key reminder ........................ 218
Light reminder ....................... 238
Open door ............................. 492
Open moon roof .................... 181
PCS (Pre-Collision System)........ 486
Seat belt reminder ................ 484
Warning lights.......................... 101 ABS....................................... 484
Brake system ....... ................. 483
Charging system ................... 483
LDA (Lane Departure Alert)........ 486
Low fuel level ........................ 484
Malfunction indicator lamp .... 483
Master warning light.............. 484
Parking brake warning light ....................... 484
PCS (Pre-Collision System)........ 486
Seat belt reminder light ........ 484
Slip indicator ......................... 485
SRS ...................................... 483
Tire pressure......................... 485
Warning messages .................. 491
Washer...................................... 245 Checking ............................... 425
Low windshield washer fluid
warning message ............... 493
Preparing and checking
before winter....................... 331
Switch ................................... 245
Washing and waxing ............... 400 Weight
Cargo capacity...................... 195
Cargo weight rating .............. 588
Gross axle weight rating ....... 590
Gross combination weight rating ....................... 201
Gross vehicle weight
rating .................................. 590
Load limits ............................ 195
Towing capacity ............ 195, 201
Trailer Weight Rating ......................... 195, 201
TWR ............................. 195, 201
Vehicle capacity
weight ......................... 195, 536
Wheels
Replacing wheels ................. 444
Size....................................... 546
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............ 449
WMA disc
*
W
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER
’S MANUAL”.