check engine light TOYOTA TACOMA 2012 Owners Manual (in English)

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4-3. Do-it-yourself maintenanceDo-it-yourself service precautions ....................... 430
Hood ................................... 434
Engine compartment ........... 436
Tires .................................... 452
Tire inflation pressure ......... 461
Wheels ................................ 466
Air conditioning filter............ 469
Wireless remote control battery ............................... 472
Checking and replacing fuses ................................. 474
Light bulbs........................... 484
5-1. Essential information Emergency flashers ............ 496
If your vehicle needs to be towed ........................... 497
If you think something is wrong ................................ 503
Fuel pump shut off system .............................. 504 5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... .......................... 505
If you have a flat tire ........... 515
If the engine will not start.... 532
If the shift lever cannot be shifted from P (vehicles
with an automatic
transmission) .................... 533
If you lose your keys........... 534
If the vehicle battery is discharged........................ 535
If your vehicle overheats .... 539
If the vehicle becomes stuck ................................. 542
If your vehicle has to be stopped in
an emergency .................. 544
6-1. Specifications Maintenance data (fuel, oil level, etc.) ........... 548
Fuel information.................. 569
Tire information .................. 572
6-2. Customization Customizable features........ 583
Items to initialize ................. 587
5When trouble arises
6Vehicle specifications

135
2-1. Driving procedures
2
When driving
CAUTION
■
When starting the vehicle (vehicl es with an automatic transmission)
Always keep your foot on the brake pedal while stopped with the engine run-
ning. This prevents the vehicle from creeping.
■ When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake
pedal will result in sudden acceleration that may lead to an accident
that could result in death or serious injury.
• When backing up, you may twist your body around, leading to a diffi- culty in operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly, allowing you to depress the brake and accelerator
pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● Do not drive the vehicle over or st op the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. This may
cause a fire if there is any flammable material nearby.
● On vehicles with an automatic transmission, do not let the vehicle roll
backwards while the shift lever is in a driving position, or roll forward while
the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering
performance, resulting in an accident or damage to the vehicle.
● If the smell of exhaust is noticed inside the vehicle, open the windows and
check that the back window is closed. Large amounts of exhaust in the
vehicle can cause driver drowsiness and an accident, resulting in death or
a serious health hazard. Have the vehicle inspected by your Toyota dealer
immediately.
● On vehicles with an automatic transmission, do not shift the shift lever to P
while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle\
control.

137
2-1. Driving procedures
2
When driving
CAUTION
■
When driving the vehicle
●Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.
■ When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle, resulting in an accident.
● Sudden changes in engine speed, such as engine braking caused by up-
shifting or down-shifting, may cause the vehicle to skid, resulting in an
accident.
● After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads may prevent
the brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected, resulting in
an accident.
■ When shifting the shift lever
On vehicles with an automatic transmission, be careful not to shift the shift
lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident and result in death or serious injury.
■ When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other than P (automatic transmission only) or
N, the vehicle may accelerate suddenly and unexpectedly, and may cause
an accident.
● Do not leave the vehicle with the engine running for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and check that exhaust fumes do not enter the vehicle interior.
● On vehicles with an automatic transmission, in order to prevent accidents
due to the vehicle rolling away, always keep depressing the brake pedal
while the engine is running, and apply the parking brake as necessary.

153
2-1. Driving procedures
2
When driving
Tur n signal lever
■Turn signals can be operated when
The engine switch is in the ON position.
■ If the indicators flash faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned
out.
Right turn
Left turn
Move and hold the lever
partway to signal a lane
change.
The right hand signal will flash
until you release the lever.
Move and hold the lever
partway to signal a lane
change.
The left hand signal will flash
until you release the lever.

162 2-2. Gauges and meters
■Warning lights
Warning lights inform the driver of malfunctions in any of the
vehicle’s systems. ( P. 505)
*1: These lights turn on when the engine switch is turned to the ON
position to indicate that a system check is being performed. They
will turn off after the engine is started, or after a few seconds. There
may be a malfunction in a system if a light does not come on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota
dealer.
*2: The indicator flashes to indicate that the system is operating.
*3: The indicator light comes on to indicate a malfunction.
*4: The indicator flashes to indicate a malfunction.
*5: For 2WD models, even though there is no function of deactivatingthe curtain shield airbags in a vehicle rollover, the RSCA OFF indi-
cator turns on briefly when the engine switch is turned to the ON
position. But this is not a malfunction.
*1AIR BAG ON indicator
(P. 103)*1AIR BAG OFF indicator
(P. 103)
(U.S.A.)(Canada)(U.S.A.)(Canada)(U.S.A.)(Canada)
(U.S.A.)
(if equipped)
*1*1*1*1*1*1*1*1
*1*1*1*1
*1,3*4

172 2-3. Operating the lights and wipers
■The windshield wiper and washer can be operated when
The engine switch must be in the ON position.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked and if there is washer fluid in
the windshield washer fluid reservoir.
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency
Washer/wiper dual opera-
tion
Wipers will automatically oper-
ate a couple of times after the
washer squirts.
6
5
STY23AF020

198 2-4. Using other driving systems
■Operating tips
The system will operate when the shift lever is in a position other than P.
However, to make effective use of the system it is recommended that the
shift lever be shifted to 2 or L.
■ The system will not operate when
●The front-wheel drive control switch is in the H2 or H4 position.
● The rear differential is locked.
■ The downhill assist control system indicator light flashes when
● The shift lever is in the N position.
● The front-wheel drive control switch is in the H2 or H4 position.
● The rear differential is locked.
■ If the brake system overheats
The system will cease operation and a buzzer will sound to alert the driver.
Stop the vehicle in a safe place. (There is no problem with continuing normal
driving.)
■ System malfunction
●The downhill assist control system indicator does not come on when the
engine switch is turned to the ON position.
● The downhill assist control system indicator does not come on when the
DAC switch is pressed.
In the above cases have your vehicle checked by your Toyota dealer.
CAUTION
■Do not rely excessively on the downhill assist control system
It may not be able to maintain a low speed over road surfaces on which slid-
ing can easily occur, such as extremely steep slopes or icy or muddy roads.

384 3-7. Other interior features
■The protection circuit may be activated to cut the power supply if any
of the following conditions apply:
●The engine is started with the power outlet main switch on.
● Use of electrical appliances exceeding the maximum capacity is
attempted.
A sound may be heard when the protection circuit is activated.
This is normal and does not indicate a malfunction.
● Electrical appliances, which consume power exceeding 100W, have
been used continuously for a long time period.
● The total power usage by all electrical features (headlights, air condition-
ing, etc.) has exceeded the total vehicle maximum for an extended
period of time.
■ If the protection circuit is activated and the power supply is cut, con-
duct the following procedure:
Park the vehicle in a safe place, and then securely apply the park-
ing brake.
Check and ensure the following conditions:• The shift lever is in P or N. (automatic transmission)
• The shift lever is in N and the clutch pedal is not depressed. (manual transmission)
Make sure that the power consumption of the electric appliance is
within the maximum capacity of the power outlet and the appliance
is not broken.
Press the power outlet main switch again.
When the cabin temperature is high, open the windows to cool the tempera-
ture down. Once it reaches the normal temperature, turn the power outlet\
main switch on again.
If the power supply is not resumed even after performing the above proce-
dure, have the vehicle inspected by a Toyota dealer.

Maintenance and care4
417
4-1. Maintenance and careCleaning and protecting the vehicle exterior......... 418
Cleaning and protecting the vehicle interior.......... 421
4-2. Maintenance Maintenance requirements .................. 424
General maintenance....... 426
Emission inspection and maintenance (I/M)
programs........................ 429 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................... 430
Hood ................................ 434
Engine compartment ........ 436
Tires ................................. 452
Tire inflation pressure ...... 461
Wheels ............................. 466
Air conditioning filter......... 469
Wireless remote control battery ............................ 472
Checking and replacing fuses .............................. 474
Light bulbs........................ 484

447
4-3. Do-it-yourself maintenance
4
Maintenance and care
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])
4.0 L V6 (1GR-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, 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])
■ Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall and remove the reservoir cap again.
Check the fluid level.
Fluid type Automatic transmission fluid DEXRON® II or III
Items Rag or paper towel