TOYOTA TUNDRA 2010 2.G Owners Manual

5
When trouble arises
591
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■ Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air cond itioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature g auge needle continually points
higher than normal
● Voltmeter continually points higher or lower than normal
(if equipped)
● Engine oil pressure gauge continually points lower than nor-
mal (if equipped)
● Automatic transmission fluid temperature gauge needle con-
tinually points higher than normal (if equipped)
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor

592
5-1. Essential information
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.Turn the engine switch to the ACC or LOCK position.
Restart the engine.
593
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an air-
bag inflates upon collision, the fuel pump shut off system stops sup-
plying fuel to the engine.

5
When trouble arises
593
5-1. Essential information
Event data recorder
In a crash or a near car crash eventThe SRS airbag sensor assembly contains the EDR. In a crash or a
near car crash event, this device may record some or all of the follow-
ing information:
● Engine speed
● Whether the brake pedal was applied or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver’s seat position
● SRS airbag deployment data
● SRS airbag system diagnostic data
● Front passenger’s occupant classification
The information above is intended to be used for the purpose of
improving vehicle safety performance. Unlike general data recorders,
the EDR does not record sound data such as conversation between
passengers.
Your vehicle has computers that monitor and control certain aspects
of your vehicle. These computers assi st in driving and maintaining
optimal vehicle performance.
Besides storing data useful for tr oubleshooting, there is an event
data recorder (EDR) that records data in a crash or a near car
crash event.

594 5-1. Essential information
Disclosure of the dataToyota will not disclose the data re corded in an EDR to a third party
except when:
● An agreement from the vehicle’s ow ner (or the leasing company for
a leased vehicle) is obtained
● Officially requested by the police or other authorities
● Used as a defense for Toyota in a law suit
● Ordered by a court of law
However, if necessary Toyota will:
● Use the data for research on Toyota vehicle safety performance
● Disclose the data to a third party for research purposes without dis-
closing details of the vehicle owner, and only when it is deemed
necessary
● Disclose summarized data cleared of vehicle identification informa-
tion to a non-Toyota organization for research purposes

5
When trouble arises
595
5-2. Steps to take in an emergency
If a war ning light turns on or a war ning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Parking brake engaged warning buzzer:
The buzzer sounds to indicate that parking brake is still engaged (with the
vehicle having reached a speed of 3 mph [5 km/h])
Stop the vehicle immediately.
The following warnings indicate the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
Warning lightWarning light/Details
(U.S.A.)
(Canada) Brake system warning li
ght (warning buzzer)*
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is
not released. If the light turns off after the parking
brake is fully released, the system is operating nor-
mally.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging sys-
tem.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

596 5-2. Steps to take in an emergency
*1: Vehicles without tachometer
*2: The light may come on when the oil level is extremely low. It is not designedto indicate low oil level, and the oil level must be checked using the engine
oil level dipstick.
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
*1Low engine oil pressure warning light
Indicates that the engine oil pressure is too low*2.
Warning lightWarning light/Details
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control sys-tem; or
• The emission control system.
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.

5
When trouble arises
597
5-2. Steps to take in an emergency
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Slip indicator The indicator comes on to indicate a malfunction in:
• The VSC;
• The TRAC;
• The A-TRAC or
• The AUTO LSD system.
Automatic transmission fluid temperature warn-
ing light Indicates that the automatic transmission fluid tem-
perature is too high.
(if equipped) Power steering warning light
Indicates a malfunction in the variable flow control
power steering system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door is
not fully closed. Check that all doors
are closed.
(On the instrument cluster) Driver’s seat belt
reminder light
(warning buzzer)
*2
Warns the driver to fas-
ten his/her seat belt.
Fasten the seat belt.
(On the center panel) Front passenger’s seat
belt reminder light
(warning buzzer)
*3
Warns the right front pas-
senger to fasten his/her
seat belt.
Fasten the seat belt.
Warning lightWarning light/Details

598 5-2. Steps to take in an emergency
Tire pressure warning
light
• When the light comes on: Low tire inflation pres-
sure. Adjust the tire
inflation pressure.
• When the light comes on after blinking for 1
minute: Malfunction in
the tire pressure warning
system. Have the system
checked by your
Toyota dealer.
Low fuel level warning
light
Low level of fuel. Refuel the vehicle.
*4Low washer fluid warn-
ing light
Low level of washer fluid. Fill the tank.
*4
(U.S.A.)Engine oil replacement
reminder light
• Illuminates for about 3
seconds and then flashes
for about 12 seconds: Indi-
cates that the engine oil is
scheduled to be changed. Check the engine oil,
and change if neces-
sary.
• Comes on and remains: Indicates that the engine
oil should be changed. Check and change the
engine oil.
*5
Master warning light
A buzzer sounds and the
warning light comes on
and flashes to indicate
that the master warning
system has detected a
malfunction. P. 604
Warning lightWarning light/DetailsCorrection procedure

5
When trouble arises
599
5-2. Steps to take in an emergency
*1: Open door warning buzzer:
The buzzer sounds to indicate that any door is opened (with the vehicle hav-
ing reached a speed of 3 mph [5 km/h])
*2: Driver’s seat belt reminder:
The driver’s seat belt reminder sounds to alert the driver that his or her seat
belt is not fastened. Once the engine switch is turned to the ON or START
position, the buzzer sounds for 6 seconds. If the vehicle has reached a
speed of at least 12 mph (20 km/h), the buzzer sounds intermittently for 10
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 20 more seconds.
*3: Front passenger’s seat belt reminder:
The front passenger’s seat belt reminder sounds to alert the right front pas-
senger that his or her seat belt is not fastened. The buzzer sounds intermit-
tently for 10 seconds after the vehicle has reached a speed of at least 12
mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound
in a different tone for 20 more seconds.
*4: Vehicles without multi-information display
*5: Vehicles with multi-information display
■ Four-wheel drive system warning buzzer
The buzzer indicated that the transfer mode is not selected correctly.
■ Key reminder buzzer
The buzzer indicates that the key has not been removed (with the engine
switch in the ACC or LOCK position and the driver’s door opened).
■ Open moon roof reminder buzzer
The buzzer indicate that the moon roof is still opened (with the engine switch
in the ACC or LOCK position and the driver’s door opened).
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.

600 5-2. Steps to take in an emergency
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Front passenger detect ion sensor and passenger seat belt reminder
If luggage or other load is placed on the right front passenger seat, depend-
ing on its weight, the reminder light to flash and buzzer to sound.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning reset switch does not turn off the tire
pressure warning light.
■The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such
as natural air leaks or tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (after several minutes).
■When a tire is replaced with a spare tire
The temporary spare tire is not equipped with the tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire is replaced with the temporary spare
tire. Replace the temporary spare tire with the repaired tire and adjust
the proper tire inflatio n pressure. The tire pres sure warning light will turn
off after several minutes.
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies
are nearby.