2012 TOYOTA TUNDRA ECU

175
2-1. Driving procedures
2
When driving
CAUTION
■
When taking a nap in the vehicle
Always turn the engine off. Otherwise, you may accidentally move the shift
lever or depress the accelerator pedal, which could cause an accident or fire
due to engine overheating. Additionally, if the vehicle is parked in a poorly
ventilated area, exhaust gases may collect and enter the vehicle, leadin\
g to
death or a serious health hazard.
■ When braking the vehicle
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and may cause one
side of the vehicle to brake differently than the other side. Also the parking
brake may not securely hold the vehicle.
● If the power brake assist function does not operate, do not follow other
vehicles closely and avoid downhills or sharp turns that require braking.
In this case, braking is still possible, but it will require more force on the
pedal than usual. Braking distance may also increase.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems: If one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and braking distance
becomes longer.
Do not drive your vehicle with only a single brake system. Have your
brakes fixed immediately.

188
2-1. Driving procedures
Hor n
■After adjusting the steering wh eel (manually adjustable type)
Make sure that the steering wheel is securely locked.
The horn may not sound if the steering wheel is not securely locked.
( P. 85)
To sound the horn, press on or
close to the mark.

197
2-2. Instrument cluster
2
When driving
■
Indicators
The indicators inform the driver of the operating state of the
vehicle’s various systems.
Turn signal indicator
(P. 186)
(Canada)
Tail light indicator
( P. 210)
Headlight high beam
indicator ( P. 212)*1AUTO LSD indicator
(P. 246, 251)
(If equipped)
Security indicator
(P. 115, 117)*1,7
RSCA OFF indicator
( P. 134)
Shift position and shift
range indicators
(P. 181)
TRAC OFF indicator
( P. 251, 252, 253)
*1AIR BAG ON indicator
(P. 135)
*1AIR BAG OFF indicator
(P. 135)
(If equipped)
Cruise control indicator
(P. 223)
(4WD models)
4HI indicator ( P. 242)
*1,5
Slip indicator
( P. 247, 250)
(4WD models)
4LO indicator ( P. 242)
*1
VSC OFF indicator
(
P. 246, 251, 252, 253)
*1
(If equipped)
TOW HAUL indicator
(P. 184)
(U.S.A.)
Headlight indicator
(P. 210)

262
2-5. Driving information
Cargo and luggage
Capacity and distributionCargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load capacity)  (Total weight of occupants)
Steps for Determining Correct Load Limit—
(1) Locate the statement “The co mbined weight of occupants and
cargo should never exceed XXX kg or XXX lbs.” on your vehicle’s
placard.
(2) Determine the combined weight of the driver and passengers that
will be riding in your vehicle.
(3)Subtract the combined weight of the driver and passengers from XXX kg or XXX lbs.
(4) The resulting figure equals the av ailable amount of cargo and lug-
gage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will
be five 150 lb passengers in your vehicle, the amount of available
cargo and luggage load capacity is 650 lbs. (1400  750 (5  150)
= 650 lbs.)
(5) Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the
available cargo and luggage load capacity calculated in Step 4.
Take notice of the following information about storage precau-
tions, cargo capacity and load.
●Stow cargo and luggage in the rear deck whenever possible.
● Be sure all items are secured in place.
● Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
● For better fuel economy, do no t carry unnecessary weight.

264 2-5. Driving information
CAUTION
■Things that must not be carried in the luggage compartment
The following things may cause a fire if loaded in the luggage compart-
ment.
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
●Do not stack anything behind the front seats higher than the seat-
backs.
Such items may be thrown about and possibly injure people in the
vehicle during sudden braking or in an accident.
●Do not place cargo or luggage in or on the following locations as the
item may get under the brake or accelerator pedal and prevent the
pedals from being depressed properly, block the driver’s vision, or hit
the driver or passengers, causing an accident.
• Driver’s feet
• Front passenger or rear seats (when stacking items)
• Instrument panel
• Dashboard
• Auxiliary box or tray that has no lid
●Secure all items in the occupant compartment, as they may shift and
injure someone during sudden braking, sudden swerving or an acci-
dent.
●Never allow anyone to ride in the rear deck. It is not designed for pas-
sengers. They should ride in their seats with their seat belts properly
fastened. Otherwise, they are much mo re likely to suffer death or seri-
ous bodily injury, in the event of sudden braking, sudden swerving or
an accident.
■Capacity and distribution
●Do not exceed the maximum axle weight rating or the total vehicle
weight rating.
●Even if the total load of occupant’s weight and the cargo load is less
than the total load capacity, do not apply the load unevenly. Improper
loading may cause deterioration of steering or braking control which
may cause death or serious injury.

290 2-5. Driving information
●The vehicle remains level when a loaded or unloaded trailer is hitched.
Do not drive if the vehicle is not level, and check for improper tongue
weight, overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors appropriate for
towing purposes.
● Depress TOW/HAUL button (if equipped)
■ Break-in schedule
If your vehicle is new or equipped with any new power train components
(such as an engine, transmission, differential or wheel bearing), Toyota rec-
ommends that you do not tow a trailer until the vehicle has been driven \
for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can s\
tart
towing. However, for the next 500 miles (800 km), drive the vehicle at a
speed of less than 50 mph (80 km/h) when towing a trailer, and avoid full
throttle acceleration.
■ Maintenance
●If you tow a trailer, your vehicle will require more frequent maintenance
due to the additional load. (See “Owner’s Warranty Information Booklet”
or “Scheduled Maintenance Guide” /“Owner’s Manual Supplement”.)
● Retighten the fixing bolts of the towing ball and bracket after approxi-
mately 600 miles (1000 km) of trailer towing.
■ If trailer sway occurs
One or more factors (crosswinds, passing vehicles, rough roads, etc.) can
adversely affect handling of your vehicle and trailer, causing instability.
●If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering wheel.
• Begin releasing the accelerator pedal immediately but very gradually to reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle
and trailer should stabilize. (if enabled, Trailer Sway Control can also help to
stabilize the vehicle and trailer.)

293
2-5. Driving information
2
When driving
CAUTION
■
When towing a trailer
Toyota recommends trailers with brakes that conform to any applicable fed-
eral and state/provincial regulations.
● If the gross trailer weight exceeds unbraked TWR, trailer brakes are
required. Toyota recommends trailers wi th brakes that conform to all appli-
cable federal and state/provincial regulations.
● Never tap into your vehicle’s hydraulic system, as this will lower the vehi-
cle’s braking effectiveness.
● Never tow a trailer without using a safety chain securely attached to both
the trailer and the vehicle. If damage occurs to the coupling unit or hitch
ball, there is danger of the trailer wandering into another lane.
NOTICE
■When installing a trailer hitch
Use only the position recommended by your Toyota dealer. Do not install the
trailer hitch on the bumper; this may cause body damage.
■ Do not directly splice trailer lights
Do not directly splice trailer lights. Directly splicing trailer lights may damage
your vehicle’s electrical system and cause a malfunction.
■ When towing a fifth wheel trailer
Be careful not to hit the cabin or bed with
the trailer while making a sharp turn.

Interior and exteriorfeatures3
297
3-5. Using the hands-free phone
system (for cellular phone)
Hands-free phone system (for cellular phone)
features .......................... 426
Using the hands-free phone system ................ 430
Making a phone call ......... 438
Setting a cellular phone ... 442
Security and system setup .............................. 446
Using the phone book ...... 449
3-6. Using the interior lights Interior lights list ............... 455
• Personal/interior light main switch .................... 457
• Personal/interior lights ... 457
• Cargo lamp main switch ............................. 460
3-7. Using the storage features List of storage features .... 461
• Glove boxes ................... 463
• Console box ................... 465
• Card holder .................... 467
• Map holder ..................... 470
• Pen holder ..................... 473
• Tissue pocket................. 475 • Overhead console .......... 477
• Front cup holders ........... 478
• Rear cup holders ........... 480
• Bottle holders ................. 481
• Auxiliary boxes ............... 483
• Storage box ................... 485
3-8. Other interior features Sun visors ........................ 488
Vanity mirrors ................... 489
Clock ................................ 490
Outside temperature display............................ 491
Power outlets (12V DC) ........................ 493
Power outlets (115V AC) ...................... 498
Seat heaters..................... 502
Seat heaters and ventilators ...................... 504
Armrest (CrewMax models only) .................. 506
Seatback table ................. 507
Floor mat .......................... 508
Luggage compartment features .......................... 510
Garage door opener......... 513
Compass .......................... 520