Lexus IS250 2013 Using the Bluetooth audio system / LEXUS 2013 IS250,IS350 OWNERS MANUAL (OM53B64U)
Page 481 of 584
5
When trouble arises
481
5-2. Steps to take in an emergency
Once3 times
(Flashing)
Indicates that the 
driver’s door has 
been opened or 
closed with the 
shift lever in P, the 
“ENGINE START 
STOP” switch in 
any mode other 
than OFF and the 
electronic key 
outside of the 
detection area.
Tu r n  t h e  
“ENGINE START 
STOP” switch 
OFF or confirm 
the location of the 
electronic key.
OnceCon-
tinuous
(Displayed alternately)(Flashing)
Indicates that the 
driver’s door has 
been opened or 
closed (with the 
shift lever out of in 
P, the “ENGINE 
START STOP” 
switch in any 
mode other than 
OFF and the elec-
tronic key outside 
of the detection 
area).
• Shift the shift lever to P.
•Confirm the 
location of the 
electronic key.
Once
(Flashing)
Indicates that the 
key battery is low.Replace the bat-
tery. ( P.  4 2 6 )
Interior
buzzerExterior buzzerWa r n i n g  m e s s a g eDetailsCorrection 
procedure 
Page 482 of 584
482
5-2. Steps to take in an emergency
*: If the engine does not start when the electronic key is inside the vehicle, theelectronic key battery may be depleted or there may be difficulties receiving the
signal from the key. ( P.  3 7 )
Once
Indicates that a 
door has been 
opened or closed 
and the “ENGINE 
START STOP” 
switch has been 
switched twice to 
ACCESSORY 
mode from OFF.
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 turn-
ing the steering 
wheel with the 
brake pedal 
depressed.
OnceIndicates that the 
electronic key 
does not operate 
properly.
P.  4 9 8
Interior
buzzerExterior buzzerWa r n i n g  m e s s a g eDetailsCorrection 
procedure 
Page 483 of 584
5
When trouble arises
483
5-2. Steps to take in an emergency
If you have a flat tire
Remove the flat tire and replace it with the spare provided.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Stop the engine.
● Turn on the emergency flashers.
■ Location of the spare tire, jack and tools
Tool bag 
(including towing eyelet) Jack
Jack handle
Spare tire
Ti g h t e nLoosen 
Page 484 of 584
484
5-2. Steps to take in an emergency
Taking out the spare tireLift up the hook of the panel on the
trunk floor.
Secure the panel using the hook
provided.
Loosen the center fastener that
secures the spare tire.
STEP1
STEP2
STEP3 
Page 485 of 584
5
When trouble arises
485
5-2. Steps to take in an emergency
Replacing a flat tireChock the tires.
Slightly loosen the wheel nuts (one
turn).
Turn the tire jack portion “A” by
hand until the notch of the jack is in
contact with the jack point.
STEP1
Flat tireWheel chock positions
Front
Left-hand 
sideBehind the 
rear right-
hand side tire
Right-
hand sideBehind the 
rear left-
hand side tire
Rear
Left-hand 
sideIn front of the 
front right-
hand side tire
Right-
hand sideIn front of the 
front left-
hand side tire
STEP2
STEP3 
Page 486 of 584
486
5-2. Steps to take in an emergency
Raise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and the
tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
Installing the spare tireRemove any dirt or foreign matter
from the wheel contact surface.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, and the tire may come off
the vehicle.
STEP4
STEP5
STEP1 
Page 487 of 584
5
When trouble arises
487
5-2. Steps to take in an emergency
Install the spare tire and loosely
tighten each nut by hand to
approximately the same amount.
Tighten the wheel nuts until the
tapered portion comes into loose
contact with the disc wheel seat.
Lower the vehicle.
Firmly tighten each nut two or
three times in the order shown in
the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
STEP2
Disc wheel 
seat
Tapered portion
STEP3
STEP4
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
Use the compact spare tire temporarily only in an emergency.
●Make sure to check the tire pressure of the compact spare tire. (
P.  5 2 0 )
STEP5 
Page 488 of 584
488
5-2. Steps to take in an emergency
■When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated. Also, if you
replace the compact spare tire after the tire pressure warning light comes on, the
light remains on.
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on the front  of the vehicle. Perform the following steps
and fit tire chains to the rear tires.
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehi-
cle.
Fit tire chains to the rear tires.
■After completing the tire change
The tire pressure warning system must be reset. ( P.  4 0 8 )
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire. 
Do not use it on other vehicles, and do no t use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is  securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported by a jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greate r than that required to replace the tire.
STEP1
STEP2
STEP3 
Page 489 of 584
5
When trouble arises
489
5-2. Steps to take in an emergency
CAUTION
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one working on or
near the vehicle may be injured.
■Replacing a flat tire
●Do not attach a heavily damaged wheel orna ment, as it may fly off the wheel while
the vehicle is moving.
●Failure to follow these precautions could cause the wheel nuts to loosen and the
tire to fall off, resulting in death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts  to be excessively tightened, leading
to bolt or disc wheel damage. In addition, the oil or grease can cause the
wheel nuts to loosen and the wheel may fall off, causing a serious accident.
Remove any oil or grease from the wheel bolts or wheel nuts.
• Have the wheel nuts tightened with a to rque wrench to 76 ft•lbf (103 N•m,
10.5 kgf•m) as soon as possible after changing wheels.
■When using the spare tire
●Remember that your compact spare tire is specifically designed for use with your
vehicle. Do not use your compact spare tire on another vehicle.
●Do not use two compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration an d braking, as well as sharp cornering.
■Speed limit when using the spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for  driving at high speeds. Failing to observe
this precaution may lead to an accident causing death or serious injury. 
Page 490 of 584
490
5-2. Steps to take in an emergency
CAUTION
■When the spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
●ABS & brake assist
●VSC
●TRAC
●EPS
●VDIM
●Navigation system (if equipped)
●Intuitive parking assist (if equipped)
●Cruise control
Also, not only can the following system not be utilized fully, it may actually negatively
effect the drive-train components:
●AWD system (if equipped)