2012 TOYOTA IQ battery

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387 5-1. Essential information
When trouble arises
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NOTICE
To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
engine is not running.
Vehicles with automatic air conditioning system
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.

404 5-2. Steps to take in an emergency
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If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional as soon as possible.
Front passenger detection sensor and passenger seat belt reminder
If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash, even if a passen-
ger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and
warning buzzer may sound.
Customization that can be configured at any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 459)
CAUTION
When the electric power steering 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.

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423
5-2. Steps to take in an emergency
When trouble arises
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If the engine will not start
If the engine still does not start after following the correct starting
procedure (P. 176, 179) or releasing the steering lock (P. 177,
182), confirm the following points.
The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. (P. 176, 179)
There may be a malfunction in the engine immobilizer system.
(P. 108)
The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
The battery may be discharged. (P. 430)
The battery terminal connections may be loose or corroded.
The starter motor does not turn over. (vehicles with smart
entry & start system)
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(P. 424)

424 5-2. Steps to take in an emergency
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Emergency start function (vehicles with smart entry & start system)
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally.
Set the parking brake.
Put the shift lever in P (Multidrive) or N (manual transmission).
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Vehicles with a Multidrive: Press and hold the “ENGINE
START STOP” switch for about 15 seconds while depressing
the brake pedal firmly.
Vehicles with a manual transmission: Press and hold the
“ENGINE START STOP” switch for about 15 seconds while
depressing the brake pedal firmly and also depressing the
clutch pedal.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle checked by any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
One or both of the battery terminals may be disconnected.
The battery may be discharged. (P. 430)
There may be a malfunction in the steering lock system (vehi-
cles with smart entry & start system).
Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional, if the problem cannot be
repaired, or if repair procedures are unknown.

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427
5-2. Steps to take in an emergency
When trouble arises
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If the electronic key does not operate properly (vehicles with smart entr y & start system)
Locking and unlocking the doors (with the mechanical key)
Using the mechanical key
(P. 36) in order to perform the
following operations:
Locks all doors
Unlocks all doors
Vehicles with alarm: An alarm will
sound if the alarm is set.
(P. 119)
Starting the engine
Vehicles with a Multidrive
Shift the shift lever to P and apply the brakes.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
Press the “ENGINE START STOP” switch within 10 seconds
after the buzzer sounds, keeping the brake pedal depressed.
If communication between the electronic key and vehicle is inter-
rupted (P. 61) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless
remote control cannot be used. In such cases, the doors can be
opened or the engine can be started by following the procedure
below.

428 5-2. Steps to take in an emergency
iQ_WE_74014EVehicles with a manual transmission
Depress the clutch pedal.
Touch the Toyota emblem side of
the electronic key to the
“ENGINE START STOP” switch.
Press the “ENGINE START STOP” switch within 10 seconds
after the buzzer sounds, keeping the clutch pedal depressed.
In the event that the “ENGINE START STOP” switch still cannot be
operated, contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as
you normally do when stopping the engine.
Replacing the key battery
As this procedure is a temporary measure, it is recommend that the elec-
tronic key battery be replaced immediately when the battery depletes.
(P. 357)

430
5-2. Steps to take in an emergency
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If the vehicle batter y is discharged
The following procedures may be used to start the engine if the vehi-
cle’s battery is discharged.
You can call any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
If you have a set of jumper (or booster) cables and a second vehi-
cle with a 12-volt battery, you can jump start your Toyota following
the steps below.
Connect the jumper cables.
1KR-FE engine

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431 5-2. Steps to take in an emergency
When trouble arises
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1NR-FE engine
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in
the illustration.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Vehicles with smart entry & start system: Open and close
any of the doors with the “ENGINE START STOP” switch
OFF.
Maintain the engine speed of the second vehicle, and turn
the engine switch to the ON position (vehicles without
smart entry & start system) or turn the “ENGINE START
STOP” switch to IGNITION ON mode (vehicles with smart
entry & start system), and then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.