brake fluid TOYOTA TUNDRA 2023 Owners Manual

19Pictorial index
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 330
Warning light/warning buzzer/warning message . . . . . . . P. 483, 496
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Headlights/parking lights/tail lights/daytime running lights . . . . P. 220
Fog lights
*4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . P. 230
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Warning messages
*5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 493
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Tilt and telescopic steering lock release lever . . . . . . . . . . P. 149
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . P. 338, 344
Usage (manual type)
*4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 338
Usage (automatic type)
*4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 344
Audio system
*6
*1: Vehicles without a smart key system
*2: Vehicles with a smart key system
*3: Vehicles with an automatic transmission
*4: If equipped
*5: For Canada only
*6: Refer to “NAVIGATION AND MULTI MEDIA SYSTEM OWNER’S MANUAL”.
5
6
7
8
9
10
11

942. Instrument cluster
*1: These lights turn on when the engine switch is turned to the “ON” position(vehicles without a smart key system) or IGNITION ON mode (vehi cles
with a smart key system) to indicate that a system check is being per-
formed. They will turn off after the engine is started, or after a few seconds.
There may be a malfunction in a system if the lights do not com e on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota dealer
for details.
*1, 3, 5PCS warning light
( P. 484)*4
(U.S.A.)
ABS warning light
(P. 491)
*2, 4, 5
(Yellow)
LDA indicator ( P. 484)
*4
(Canada)
ABS warning light
(P. 491)
*4
(U.S.A.)
Brake system warning
light ( P. 489)
*2, 4
Slip indicator ( P. 491)
*4
(Canada)
Brake system warning
light (P. 489)
*4, 5Tire pressure warning
light (P. 491)
*4Automatic transmission
fluid temperature warn-
ing light ( P. 490)*4Brake Override System/
Drive-Start Control warn-
ing light
(P. 492, 493, 503)
*4High engine coolant tem-
perature warning light
(P. 490)*4Low engine oil level
warning light ( P. 492)
*4Low engine oil pressure
warning light ( P. 490)*4
(Canada
only)
Low windshield washer
fluid warning light
(P. 493)
*4
Charging system warn-
ing light ( P. 490)

1774-1. Before driving
4
Driving
NOTICE
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehi-
cle.
● It may be difficult to control your vehicle.
● The vehicle will make abnormal sounds or vibrations.
● The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 511)
■ When encountering flooded roads or waterlogged roads
Do not drive on a road that has flooded after heavy rain, etc. Doing so may
cause the following serious damage to the vehicle:
● Engine stalling
● Short in electrical components
● Engine damage caused by water immersion
● Rubber or mechanical part damage or poor lubrication due to grease
being washed away, or grease becoming contaminated with mud or dirt
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have your Toyota dealer check the following:
● Brake function
● Changes in quantity and quality of oil and fluid used for the engine, trans-
mission, transfer (4WD models) differentials, etc.
● Lubricant condition for the propeller shaft, clutch fork, beari ngs and sus-
pension joints (where possible), and the function of all joints, bearings, etc.

3294-6. Driving tips
4
Driving
Winter driving tips
●Use fluids that are appropriate t o the prevailing outside tempera-
tures. • Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspec t the condition of the battery.
● Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
Perform the following according to the driving conditions:
● Do not try to forcibly open a window or move a wiper that is fr ozen.
Pour warm water over the frozen area to melt the ice. Wipe away
the water immediately to p revent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Check for and remove any excess ic e or snow that may have accu-
mulated on the exterior lights, vehicle’s roof, chassis, around the
tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
Accelerate the vehicle slowly, keep a safe distance between you and
the vehicle ahead, and drive at a reduced speed suitable to roa d con-
ditions.
Carry out the necessary preparations and inspections before
driving the vehicle in winter. Always drive the vehicle in a ma n-
ner appropriate to the prevailing weather conditions.
Preparation for winter
Before driving the vehicle
When driving the vehicle

4116-2. Maintenance
6
Maintenance and care
General maintenance
Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Own er’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified s ervice shop for advice.
Engine compartment
ItemsCheck points
BatteryCheck the connections. (P. 428)
Brake fluidIs the brake fluid at the correct level? ( P. 425)
Engine coolantIs the engine coolant at the correct level? (P. 423)
Engine oilIs the engine oil at the correct level? (P. 421)
Exhaust systemThere should not be any fumes or strange sounds.
Power steering fluidIs the power steering fluid at correct level?
(P. 426)
Radiator/condenserThe radiator and condenser should be free from for-
eign objects. ( P. 425)
Washer fluidIs there sufficient washer fluid? (P. 430)

4156-3. Do-it-yourself maintenance
6
Maintenance and care
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
Battery condition
(  P. 428)• Warm water• Baking soda• Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 425)• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant
level ( P. 423)
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(  P. 421)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P. 455)• Fuse with same amperage rating as original
Light bulbs
( P. 458)
• Bulb with same number and wattage rating as origi-
nal
• Phillips-head screwdriver
• Flathead screwdriver• Wrench
Power steering
fluid level

(
P. 426)
• Automatic transmission fluid DEXRON® II or III
• Rag or paper towel
• Funnel (used only for adding power steering fluid)
Radiator and
condenser
(
P. 425)

Tire inflation
pressure
(  P. 442)• Tire pressure gauge
• Compressed air source
Washer fluid
( P. 430)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)

4196-3. Do-it-yourself maintenance
6
Maintenance and care
Engine compartment
2TR-FE engine
Washer fluid tank (P. 430)
Radiator cap
Engine coolant reservoir ( P. 423)
Engine oil filler cap ( P. 422)
Power steering fluid reservoir ( P. 426) Engine oil level dipstick
( P. 421)
Brake fluid reservoir ( P. 425)
Fuse box ( P. 455)
Battery ( P. 428)
Condenser ( P. 425)
Radiator ( P. 425)1
2
3
4
5
6
7
8
9
10
11

4206-3. Do-it-yourself maintenance
2GR-FKS engine
Washer fluid tank (P. 430)
Power steering fluid reservoir ( P. 426)
Radiator cap
Engine oil level dipstick ( P. 421)
Engine coolant reservoir ( P. 423) Engine oil filler cap (
P. 422)
Brake fluid reservoir ( P. 425)
Fuse box ( P. 455)
Battery ( P. 428)
Condenser ( P. 425)
Radiator ( P. 425)1
2
3
4
5
6
7
8
9
10
11

4256-3. Do-it-yourself maintenance
6
Maintenance and care
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 vehicle inspected by your Toyota dea l e r.
■Checking fluid level
The brake fluid level should be between the “MAX” and “MIN” lin es
on the tank.
“MAX” line
“MIN” line
■Adding fluid
Make sure to check the fluid ty pe and prepare the necessary ite m.
Type B only
Turn the engine off.
Depress the brake pedal 20 times or more.
Remove the reservoir cap.
Add newly opened brake fluid up to the “MAX” line.
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
Ty p e AType B
1
2
Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Items Clean funnel
1
2
3
4

4266-3. Do-it-yourself maintenance
■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.
■
Fluid level
The fluid level should be within the appropriate range.
2TR-FE engine
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, 104°F - 175°F [40°C - 80°C])
Cold: Engine has not been run for about 5 hours. (Room tem- perature, 32°F - 104°F [0°C - 40°C])
WARNING
■ When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage
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 the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.
Power steering fluid
1
2
3
4