2020 TOYOTA TUNDRA brake fluid

4206-3. Do-it-yourself maintenance
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehic le inspected by your Toyota dea ler.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
■Adding fluid
Make sure to check the fluid type and prepare the necessary ite m.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss o f braking effi-
ciency. Use only newly opened brake fluid.
Radiator and condenser
WARNING
■ When the engine is hot
Do not touch the radiator or condenser as they may be hot and c ause seri-
ous injuries, such as burns.
Brake fluid
Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Items Clean funnel

4216-3. Do-it-yourself maintenance
6
Maintenance and care
■Fluid level
The fluid level should be within the appropriate range.Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: Vehicle has been driven around 50 mph (80 km/h) for 20 minutes, or slightly longer in frigid temperatures. (Fluid
temperature, 140°F - 175°F [60°C - 80°C])
Cold: Engine has not been run for about 5 hours. (Room tem- perature, 50°F - 85°F [10°C - 30°C])
WARNING
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damag e
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■ If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as t he brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serio us problem.
Power steering fluid
1
2
3
4

481
7
When trouble arises
7-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks un der the vehicle.
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points high er
than normal.
● Voltmeter continually points higher or lower than normal
● Engine oil pressure gauge cont inually points lower than normal
● Automatic transmission fluid temperature warning message is dis -
played
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine misses, stumbli ng or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

483
7
When trouble arises
7-2. Steps to take in an emergency
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and w arning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning li ght (warning buzzer)
• Low brake fluid
• Malfunction in the brake system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
 Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Toyota dealer
immediately.

4937-2. Steps to take in an emergency
7
When trouble arises
Indicates that the automatic transmission fluid
temperature is to highA buzzer also sounds.
 Immediately stop the vehicle in a safe
place, shift the shift lever to P and wait until
the light goes off.
If the light goes off, you may start the vehi-
cle again. If the light does not go off, con-
tact your Toyota dealer.
Indicates that the parking brake is still engaged
If the vehicle reaches a speed of 3 mph
(5 km/h), flashes and a buzzer
sounds to indicate that the parking brake is
still engaged.
 Release the parking brake.
Indicates that the washer fluid level is low
Add washer fluid.
(If equipped)
Indicates that intuitive parking assist is dirty or
covered with ice
Clean the sensor.
(If equipped)
Indicates that the Blind Spot Monitor sensors or
the surrounding area on the bumper is dirty or
covered with ice
A buzzer also sounds.
 Clean the sensor and its surrounding area
on the bumper.
Standard fuel tank
Indicates remaining fuel is approximately 4.0 gal.
(15.0 L, 3.3 Imp.gal.) or less
Large fuel tank
Indicates remaining fuel is approximately 3.8 gal.
(14.4 L, 3.2 lmp.gal.) or less A buzzer also sounds.
 Refuel the vehicle.
Warning messageDetails/Actions
High Transmission
Fluid Temp
See Owner’s Manual
Release
Parking Brake
(U.S.A) (Canada)
Windshield
Washer Fluid Low
Clean Parking Assist Sensor
Blind Spot Monitor
Unavailable
Fuel Low

4957-2. Steps to take in an emergency
7
When trouble arises
(If equipped)
Indicates a malfunction in the PCS (Pre-Collision
System).A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates a malfunction in the LDA (Lane Depar-
ture Alert).
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates that the LDA (Lane Departure Alert)
system cannot be used as the vehicle speed is
lower than approximately 32 mph (50 km/h).
Drive the vehicle at approximately 32 mph
(50 km/h) or more.
(If equipped)
Indicates that LDA (Lane Departure Alert) system
cannot be used due to the vehicle speed being
too high.
Slow down.
Indicates a malfunction in the SRS airbag sys-
tem.
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates the following:
• The brake fluid level is low; or
• The brake system is malfunctioning.
A buzzer also sounds.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Warning messageDetails/Actions
Pre-Collision System
Malfunction
Visit Your Dealer
LDA
Malfunction
Visit Your Dealer
(Yellow)
LDA
Unavailable
Below Approx. 32MPH
LDA
Unavailable
at Current Speed
SRS Airbag System
Malfunction
Visit Your Dealer
Check Brake System

5458-1. Specifications
8
Vehicle specifications
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N,
50 kgf) with the engine running.
*2: Parking brake pedal travel when depressed with a force of 67.1 lbf
(300 N, 30.6 kgf).
Transfer (4WD models)
Oil capacity 1.6 qt. (1.5 L, 1.3 Imp.qt.)
Oil typeToyota Genuine Transfer Gear oil LF or
equivalent
Recommended oil viscosity SAE 75W
Brakes
Pedal clearance*14.1 in. (104 mm) Min.
Pedal free play
0.04  0.24 in. (1  6 mm)
Brake pad wear limit 0.04 in. (1.0 mm)
Parking brake lining wear limit 0.04 in. (1.0 mm)
Parking brake pedal travel*26 — 9 clicks
Fluid typeFMVSS No. 116 DOT 3 or SAE J1703
Steering
Free playLess than 1.2 in. (30 mm)
Power steering fluid typeAutomatic transmission fluid DEXRON® II or III

597Alphabetical index
Blind Spot Monitor (BSM) ....... 305
Bluetooth®*
Bottle holders .......................... 372
BrakeFluid ...................................... 420
Parking brake........................ 233
Warning buzzer..................... 483
Warning light ......................... 483
Brake assist ............................. 320
Brake Override System ........... 185
Break-in tips ............................. 186
Brightness control Instrument panel light
control................................. 107
BSM (Blind Spot Monitor) ....... 305 Blind Spot Monitor
function ............................... 309
Rear Cross Traffic Alert function ............................... 312
Camper information ................ 586
Card holder .............................. 364
Care................................... 400, 403 Aluminum wheels.................. 401
Exterior ................................. 400
Interior................................... 403
Seat belts .............................. 404
Cargo capacity ......................... 195
Cargo lamp Light switch ........................... 359
Replacing light bulbs............. 468
Wattage ................................ 548
CD player
*
Certification label ............ 200, 539
Chains....................................... 332
Child restraint system ............... 59
Booster seats, definition ......... 60
Booster seats, installation ....... 69
Convertible seats, definition.... 60 Convertible seats,
installation ............................ 68
Front passenger occupant
classification syst em ............ 53
Infant seats, definition............. 60
Infant seats, installation .......... 67
Installing CRS with LATCH anchors ............ 65
Installing CRS with seat belts...................................... 67
Installing CRS with top tether strap........ 70, 73
Child safety ................................ 58
Airbag precautions.................. 44
Battery precautions............... 525
Child restraint system ............. 59
How your child should wear the seat belt ................. 36
Installing child restraints ......... 63
Moon roof precautions .......... 182
Power back window precautions......................... 178
Power window lock switch .... 172
Power window precautions ... 174
Rear door child-protector ...... 131
Removed wireless remote control battery
precautions......................... 451
Seat belt extender precautions........................... 39
Seat belt precautions .............. 62
Seat heater precautions ....... 355
Child-protectors ...................... 131
Cleaning ........................... 400, 403 Aluminum wheels ................. 401
Exterior ................................. 400
Interior .................................. 403
Seat belts.............................. 404
Clock
*
Compass .................................. 394
C
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER
’S MANUAL”.