key Lexus IS F 2011 Workshop Manual

391
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_EE
If the electronic key battery is discharged
The following symptoms may occur.
The smart entry & start system and wireless remote control will not
function properly.
The operational range is reduced.
Use a CR1632 lithium battery
Batteries can be purchased at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, jewelers, or camera
stores.
Replace only with the same or equivalent type recommended by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Dispose of used batteries according to the local laws.
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus
dealer can replace the battery for you.
CAUTION
Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
Certification for the smart entry & start system
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCOR-
RECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE
INSTRUCTIONS.

5When trouble arises
415
IS F_EE
5-1. Essential information
Emergency flashers .......... 416
If your vehicle needs to be
towed.............................. 417
If you think something is
wrong ............................. 423
Fuel pump shut off
system ............................ 4245-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds... ........................ 425
If a warning message is
displayed ........................ 431
If you have a flat tire........ 444
If the engine will not start 454
If the shift lever cannot be
shifted from P ................ 456
If you lose your keys ....... 457
If the electronic key does
not operate properly....... 458
If the vehicle battery is
discharged ...................... 462
If your vehicle overheats . 465
If the vehicle becomes
stuck............................... 468
If your vehicle has to
be stopped in an
emergency...................... 469

440
5-2. Steps to take in an emergency
IS F_EE
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Once
(Comes on for 10 sec-
onds.)
Indicates that an
attempt was
made to start the
engine without
the electronic
key being pres-
ent, or the elec-
tronic key was
not functioning
normally.
Start the engine
with the elec-
tronic key
present.
*
Once3
times
(Flashing)
Indicates that a
door other than
the driver’s door
has been opened
and closed with
the “ENGINE
START STOP”
switch in any
mode other than
OFF and the
electronic key
has been taken
out of the detec-
tion area.
Confirm the
location of the
electronic key.

5
441
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
Once3
times
Indicates that
the driver’s door
has been opened
and closed with
the shift lever in
P, the “ENGINE
START STOP”
switch in any
mode other than
OFF and the
electronic key
has been taken
out of the detec-
tion area.
Turn the
“ENGINE
START STOP”
switch OFF or
confirm the
location of the
electronic key.
Con-
tinu-
ousCon-
tinu-
ous
(Displayed alter-
nately)
(Flashing)
Indicates that
the driver’s door
has been opened
and closed with
the shift lever
out of in P, the
“ENGINE
START STOP”
switch in any
mode other than
OFF and the
electronic key
has been taken
out of the detec-
tion area.
• Shift the shift
lever to P.
• Confirm the
location of the
electronic key.
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure

442
5-2. Steps to take in an emergency
IS F_EE
Once(Comes on for 10 sec-
onds.)
(Flashing)
Indicates that
the key battery
is low.Replace the bat-
tery. (P. 390)

Indicates that
the “ENGINE
START STOP”
switch has been
turned twice to
ACCESSORY
mode without
starting the
engine when a
closed door is
opened.
Press the
“ENGINE
START STOP”
switch while
applying the
brakes.

(Flashing)
Indicates that
the steering lock
has not released
within 3 seconds
of pressing the
“ENGINE
START STOP”
switch.Press the
“ENGINE
START STOP”
switch again
while turning
the steering
wheel with the
brake pedal
depressed.
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure

5
443
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
*: If the engine does not start when the electronic key is inside the vehicle,
the electronic key battery may be depleted or there may be difficulties
receiving the signal from the key. (P. 41)
OnceIndicates that
the electronic
key does not
operate properly.
P. 4 6 0
Once
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure

5
457
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
If you lose your keys
New genuine Lexus keys can be made by any authorized Lexus dealer
or repairer, and another duly qualified and equipped professional,
using the other key and the key number stamped on your key number
plate.

458
5-2. Steps to take in an emergency
IS F_EE
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked func-
tions
Use the mechanical key built in to the electronic keys to operate
the doors. (P. 33)
An alarm will sound if the alarm is set. ( P. 9 7 )
Doors
Remove the cover on the
driver’s door handle.
Locks all doors
Closes the windows/moon
roof (turn and hold)
Unlocks all doors
Opens the windows/moon
roof (turn and hold)
If communication between the electronic key and vehicle is inter-
rupted (P. 41) or the electronic key cannot be used because the bat-
tery is depleted, the smart entry & start system and wireless remote
control cannot be used. In such cases, the doors and trunk can be
opened or the engine can be started by following the procedure below.
STEP1
STEP2

5
459
5-2. Steps to take in an emergency
When trouble arises
IS F_EEAfter the operation is com-
pleted, reinstall the cover.
Hook the upper claw of the
cover onto the upper catch on
the vehicle side, and then push
on the lower side of the cover.
Make sure that the lower claw
of the cover is securely fastened
to the lower catch on the vehicle
side. If the cover is not securely
attached, it may fall off while
driving.
Trunk
Turn the mechanical key clock-
wise to open.
STEP3

460
5-2. Steps to take in an emergency
IS F_EE
Changing “ENGINE START STOP” switch modes and starting the
engine
Shift the shift lever to P and apply the brakes.
Touch the Lexus emblem side
of the electronic key to the
“ENGINE START STOP”
switch.
An alarm will sound to indicate
that the start function cannot
detect the electronic key that is
touched to the “ENGINE
START STOP” switch if any of
the doors is opened and closed
while the key is touched to the
switch.
STEP1
STEP2