engine overheat TOYOTA xB 2012 Owners Manual (in English)

TABLE OF CONTENTSIndex
4
Scion_xB_OM_OM12G11U_(U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ........... 202
Cleaning and protecting the vehicle interior ............ 205
4-2. Maintenance Maintenance requirements .................... 208
General maintenance ......... 210
Emission inspection and maintenance (I/M)
programs .......................... 214
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 215
Hood................................... 218
Positioning a floor jack ....... 220
Engine compartment .......... 222
Tires ................................... 236
Tire inflation pressure......... 244
Wheels ............................... 248
Air conditioning filter ........... 251
Wireless remote control battery .............................. 254
Checking and replacing fuses ................................ 256
Light bulbs .......................... 266 5-1. Essential information
Emergency flashers ............ 278
If your vehicle needs to be towed ....................... 279
If you think something is wrong ............................ 286
Fuel pump shut off system .............................. 287
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... .......................... 288
If you have a flat tire ........... 301
If the engine will not start .... 315
If the shift lever cannot be shifted from P (automatic
transmission) .................... 316
If you lose your keys ........... 317
If the vehicle battery is discharged .................... 318
If your vehicle overheats..... 322
If the vehicle becomes stuck ................................. 325
If your vehicle has to be stopped
in an emergency ............... 327
4Maintenance and care5When trouble arises

109
2-1. Driving procedures
2
When driving
Scion_xB_OM_OM12G11U_(U)
CAUTION
●
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.
● Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle\
control.
● Do not shift the shift lever to D (vehicles with an automatic transmission) or
1 (vehicles with a manual transmission) while the vehicle is moving back-
ward.
Doing so can damage the transmission and may result in a loss of vehicle\
control.
● Moving the shift lever to N while the vehicle is moving will disengage the
engine from the transmission. Engine braking is not available when N is
selected.
● During normal driving, do not turn off the engine. Turning the engine off
while driving will not cause loss of steering or braking control, but the
power assist to these systems will be lost . This will make it difficult to steer
and brake, so you should pull over and stop the vehicle as soon as it is
safe to do so.
However, in the event of an emergency, such as if it becomes impossible
to stop the vehicle in the normal way: P. 327
● Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 122)
● Do not adjust the position of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents,
resulting in death or serious injury.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle, as this may result in death or serious injury.

111
2-1. Driving procedures
2
When driving
Scion_xB_OM_OM12G11U_(U)
CAUTION
■
When the vehicle is stopped
● Do not race the engine.
If the vehicle is in any gear other than P (vehicles with an automatic trans-
mission only) or N, the vehicle may accelerate suddenly and unexpectedly,
causing 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.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or ba ckward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine. Running the engine at high speed
while the vehicle is stopped may cause the exhaust system to overheat,
which could result in a fire if combustible material is nearby.
■ When the vehicle is parked
● Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the vehicle, and may also cause a short circuit in the vehi-
cle’s electrical components.

113
2-1. Driving procedures
2
When driving
Scion_xB_OM_OM12G11U_(U)
CAUTION
■
Exhaust gases
Exhaust gases include harmful carbon monoxide (CO), which is colorless
and odorless. Inhaling exhaust gases may lead to death or a serious health
hazard.
● If the vehicle is in a poorly ventilated area, stop the engine. In a closed
area, such as a garage, exhaust gases may collect and enter the vehicle.
This may lead to death or a serious health hazard.
● The exhaust system should be checked occasionally. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise,
be sure to have the vehicle inspected and repaired by your Scion dealer.
Failure to do so may allow exhaust gases to enter the vehicle, resulting in
death or a serious health hazard.
■ When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever
or depress the accelerator pedal, this could cause an accident or fire due to
engine overheating. Additionally, if the vehicle is parked in a poorly venti-
lated area, exhaust gases may collect and enter the vehicle, leading to
death or a serious health hazard.

120 2-1. Driving procedures
Scion_xB_OM_OM12G11U_(U)
NOTICE
■To prevent battery discharge
Do not leave the engine switch in the “ACC” or “ON” position for long periods
of time without the engine running.
■ When starting the engine
● Do not crank the engine for more than 30 seconds at a time. This may
overheat the starter and wiring system.
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have the engine
checked immediately.

152 2-4. Using other driving systems
Scion_xB_OM_OM12G11U_(U)
■Sounds and vibrations caused by the ABS, brake assist, VSC and
TRAC
● A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indi-
cate that a malfunction has occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.
■ Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally reactivated in the following situations:
● When the engine switch is turned to the “LOCK” position
● If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases.
If both the TRAC and VSC systems are turned off, automatic reactivation
will not occur when vehicle speed increases.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur,
refrain from excessive steering input or stop the vehicle and turn the engine
off. The EPS system should return to normal within 10 minutes.

When trouble arises5
277
Scion_xB_OM_OM12G11U_(U)
5-1. Essential informationEmergency flashers ......... 278
If your vehicle needs to be towed .................... 279
If you think something is wrong ......................... 286
Fuel pump shut off system ........................... 287 5-2.
Steps to take
in an emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 288
If you have a flat tire......... 301
If the engine will not start ................................ 315
If the shift lever cannot be shifted from P (automatic
transmission) ................. 316
If you lose your keys ........ 317
If the vehicle battery is discharged .................. 318
If your vehicle overheats ....................... 322
If the vehicle becomes stuck .............................. 325
If your vehicle has to be stopped
in an emergency ............ 327

5
When trouble arises
289
5-2. Steps to take in an emergency
Scion_xB_OM_OM12G11U_(U)
Stop the vehicle immediately.
The following warning indicates 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 Scion dealer.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low.
High engine coolant temperature warning light Indicates that the engine is almost overheating.
(P. 322)

322
5-2. Steps to take in an emergency
Scion_xB_OM_OM12G11U_(U)
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the high coolant temperature warning light
goes off and then stop the engine.
If the fans are not operating: Stop the engine immediately and call your Scion dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.STEP 1
STEP 2
STEP 3
STEP 5 STEP 4

5
When trouble arises
323
5-2. Steps to take in an emergency
Scion_xB_OM_OM12G11U_(U)
■
Overheating
If you observe the following, your vehicle may be overheating:
● The high engine coolant temperature warning light flashers or comes on
or a loss of power is experienced.
● Steam comes out from under the hood.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable.
(P. 335)
Have the vehicle inspected at t he nearest Scion dealer as soon as
possible.
STEP 5