2010 TOYOTA TUNDRA fuses

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4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 512
Cleaning and protecting the vehicle interior............. 514
4-2. Maintenance Maintenance requirements ..................... 517
General maintenance.......... 519
Emission inspection and maintenance (I/M)
programs........................... 522
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ....................... 523
Hood ................................... 527
Engine compartment ........... 528
Tires .................................... 542
Tire inflation pressure ......... 549
Wheels ................................ 553
Air conditioning filter............ 555
Wireless remote control battery ............................... 558
Checking and replacing fuses ................................. 560
Light bulbs........................... 571 5-1. Essential information
Emergency flashers............ 584
If your vehicle needs to be towed................................ 585
If you think something is wrong ............................... 591
Fuel pump shut off system .............................. 592
Event data recorder ............ 593
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... .......................... 595
If a warning message is displayed (vehicles
with multi-information
display) ............................. 604
If you have a flat tire ........... 608
If the engine will not start.... 625
If the shift lever cannot be shifted from P ................... 627
If you lose your keys........... 630
If the vehicle battery is discharged........................ 631
If your vehicle overheats .... 634
If the vehicle becomes stuck ................................. 637
If your vehicle has to be stopped in an
emergency ........................ 638
4Maintenance and care5When trouble arises

418 3-5. Using the hands-free phone system (for cellular phone)
■Steering wheel
Vo l u m e
The voice guidance volume
cannot be adjusted using this
button.
On-hook switch
Turns the hands-free sys-
tem off/ends a call/refuses a
call
Off-hook switch
Turns the hands-free sys-
tem on/starts a call
Talk switch
Turns the voice command
system on (press)/turns the
voice command system off
(press and hold)
■ Microphone

Maintenance and care4
511
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 512
Cleaning and protecting the vehicle interior .......... 514
4-2. Maintenance Maintenance requirements .................. 517
General maintenance....... 519
Emission inspection and maintenance (I/M)
programs........................ 522
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 523
Hood ................................ 527
Engine compartment ........ 528
Tires ................................. 542
Tire inflation pressure ...... 549
Wheels ............................. 553
Air conditioning filter......... 555
Wireless remote control battery ............................ 558
Checking and replacing fuses .............................. 560
Light bulbs........................ 571

523
4
Maintenance and care
4-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance yourself, be sure to follow the correct
procedures as given in these sections.
ItemsParts and tools
Battery condition ( P. 538)•Warm water
• Baking soda
• Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( P. 535)• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
Engine coolant level ( P. 534)• “Toyota Super Long Life Coolant”
or similar high quality ethylene
glycol based non-silicate, non-
amine, non-nitrite and non-borate
coolant with long-life hybrid
organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant”
is pre-mixed with 50% coolant
and 50% deionized water.
Canada:
“Toyota Super Long Life Coolant”
is pre-mixed with 55% coolant
and 45% deionized water.
Engine oil level P. 530) • Toyota Genuine Motor Oil or
equivalent
• Rag or paper towel
• Funnel (used only for adding oil)
Fuses ( P. 560)• Fuse with same amperage rating
as original

560
4-3. Do-it-yourself maintenance
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the engine switch off.
The fuses are located in the following places. To check the
fuses, follow the in structions below.
Engine compartment
Push the tab in and lift the lid
off.
Under the instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 563) for details about which fuse to check.

563
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1 A/F 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
2 HORN 10 A Horn
3 EFI NO.1 25 A Multiport fuel injection system/
sequential multiport fuel injection
system
4 IG2 MAIN 30 A INJ, MET, IGN fuses
5 DEICER 20 A Front windshield wiper de-icer
6 TOW TAIL 30 A Trailer lights (tail lights)
7 POWER NO.4 25 A Power windows
8 POWER NO.2 30 A Power back windows
9 FOG 15 A Front fog lights

566 4-3. Do-it-yourself maintenance
*: Replace the fuse with one of the same ampere rating as the original.
35 SPARE 30 A Spare fuse
36 DEFOG 40 A Back window defogger
37 SUB BATT 40 A Trailer towing
38 ABS1 50 A
Anti-lock brake system, vehicle sta-
bility control system
39 ABS2 40 A Anti-lock brake system, vehicle sta-
bility control system
40 ST 30 A Starting system
41 HTR 50 A Air conditioning system
42 LH-J/B 150 A AM1, TAIL, PANEL, ACC, CIG, LH-
IG, 4WD, ECU-IG No.1, BK/UP LP,
SEAT-HTR, A/C IG, ECU-IG No.2,
WSH, WIPER, OBD, A/C, TI&TE,
FR P/SEAT RH, MIR, DR/LCK, FR
P/SEAT LH, CARGO LP, PWR
OUTLET, POWER No.1 fuses
43 ALT 180 A
*LH-J/B, HTR, SUB BATT, TOW
BRK, STOP, FOG, TOW TAIL,
DEICER fuses
140 A
*
44 A/PUMP NO.1 50 A Multiport fuel injection system/
sequential multiport fuel injection
system
45 A/PUMP NO.2 50 A Multiport fuel injection system/
sequential multiport fuel injection
system
46 MAIN 40 A HEAD LL, HEAD RL,
HEAD LH, HEAD RH fuses
FuseAmpereCircuit

569
4-3. Do-it-yourself maintenance
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Maintenance and care
25 ACC
7.5 AAccessory meter, audio system,
rear seat entertainment system,
rear view monitor, navigation sys-
tem, back-up lights, trailer lights
(back-up lights), multiplex commu-
nication system, power outlet, out-
side rear view mirror
26 BK/UP LP 10 A Back-up light, gauges and meters
27 CIG 15 A Cigarette lighter
28 POWER No.1 30 A Power windows, power back win-
dow
■ After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. ( P. 571)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any
other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
● Do not modify the fuse or the fuse box.
FuseAmpereCircuit