Page 266 of 392
266 4-3. Do-it-yourself maintenance
Scion_xB_OM_OM12G05U_(U)
■Driver’s side instrument panel
18 OBD 7.5 A On-board diagnosis system
19 STOP 10 AStop lights, high mounted stop-
light, multiport fuel injection sys-
tem/ sequential multiport fuel
injection system, anti-lock brake
assist system, body ECU
20 DOOR 25 A Power door lock system, body ECU
21 ACC-B 25 A CIG, ACC
22 FR FOG 15 A No circuit
23 AM1 7.5 AStarting system, shift lock control
system
FuseAmpereCircuit
1 POWER 30 A Power windows
2 DEF 30 A Rear window defogger, MIR HTR
3 PWR SEAT 30 A No circuit
FuseAmpereCircuit
Page 282 of 392
282 5-1. Essential information
Scion_xB_OM_OM12G05U_(U)
Emergency towingIf a tow truck is not available in
an emergency, your vehicle may
be temporarily towed using a
cable or chain secured to the
emergency towing eyelet(s).
This should only be attempted
on hard surfaced roads for short
distances at low speeds.
A driver must be in the vehicle to
steer and operate the brakes.
The vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition.
For vehicles with an automatic
transmission, only the front tow-
ing eyelet may be used.
Page 285 of 392
5
When trouble arises
285
5-1. Essential information
Scion_xB_OM_OM12G05U_(U)
Towing with a wheel-lift type truck
From the front Release the parking brake.
From the rear Vehicles with an automatic trans-
mission: Use a towing dolly
under the front wheels.
Vehicles with a manual transmis-
sion: We recommend using a
towing dolly under the front
wheels.
When not using a towing dolly,
turn the engine switch to the
“ACC” position and shift the shift
lever to N.
Page 286 of 392
286 5-1. Essential information
Scion_xB_OM_OM12G05U_(U)
Using a flatbed truckIf you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be
damaged.
■ Before emergency towing
Release the parking brake.
Shift the shift lever to N.
Turn the engine switch to the “ACC” (engine off) or “ON” (engine
running) position.
■ Emergency towing eyelet location
P. 303
CAUTION
■Caution while towing
● Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
● If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
STEP 1
STEP 2
STEP 3
Page 288 of 392

288
5-1. Essential information
Scion_xB_OM_OM12G05U_(U)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Cont act your Scion 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
● High engine coolant temperatur e warning light flashes or
comes on
● Low engine coolant temperature indicator comes on or does
not come on continuously
■ 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 roughly
● 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
Page 290 of 392

290
Scion_xB_OM_OM12G05U_(U)
5-2. Steps to take in an emergency
If a war ning light tur ns 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
Scion dealer.
*: Parking brake engaged warning buzzer: A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details
(U.S.A.)
(Canada) Brake system warning light (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 normally.
Calmly perform the following actio ns if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then goes
off, this does not necessarily indicate a malfunction in the system.
However, if this continues to o ccur, have the vehicle inspected by
your Scion dealer.
Page 292 of 392
292 5-2. Steps to take in an emergency
Scion_xB_OM_OM12G05U_(U)
Have the vehicle inspected by your Scion dealer immediately.Failure 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 Scion dealer immediately.
Warning lightWarning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system (if
equipped).
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.
Page 300 of 392

300 5-2. Steps to take in an emergency
Scion_xB_OM_OM12G05U_(U)
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient of the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sound.
CAUTION
■When the electric power steerin g system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If a tire is flat, change it with th e spare tire and have the flat tire
repaired by the nearest Scion dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.