556
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check
that the warning message and light go off.
Interior
buzzer Exterior
buzzer
Wa r n i n g  m e s s a g eDetailsCorrection 
procedure
Sounds 
once
 ⎯
(Flashes)
The electronic key 
is not detected 
when an attempt 
is made to start 
the engine.
Confirm the loca-
tion of the elec-
tronic key.
Sounds 
once Sounds 
3 times
(Flashes)
The electronic key 
was carried out-
side the vehicle 
and a door other 
than the driver's 
door was opened 
and closed while 
the “ENGINE 
START STOP” 
switch was in a 
mode other than 
off.
Bring the elec-
tronic key back 
into the vehicle.
The driver's door 
was opened and 
closed while the 
electronic key was 
not in the vehicle, 
the shift lever was 
in P and the 
“ENGINE START 
STOP” switch was 
not turned off. 
Tu r n  t h e  
“ENGINE START 
STOP” switch off 
or bring the elec-
tronic key back 
into the vehicle.     
         
        
        574
5-2. Steps to take in an emergency
CAUTION
nUsing the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off the jack,
leading to death or serious injury.
lDo not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
lOnly use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replacing tires
on this vehicle.
lAlways check that the tire jack is securely set to the jack point.
lDo not put any part of your body under the vehicle is supported by the jack.
lDo not start or run the engine while your vehicle while it is supported by the jack.
lDo not raise the vehicle while someone is in it.
lWhen raising the vehicle, do not put an object on or under the jack.
lDo not raise the vehicle to a height greater than that required to replace the tire.
lUse 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.
nReplacing a flat tire
Observe the following precautions to reduce the risk of death or serious injury:
lDo not touch the disc wheels or the area around the brakes immediately after the
vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the brakes
will be extremely hot. Touching these areas with hands, feet or other body parts
while changing a tire, etc. may result in burns.
lNever 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. 
         
        
        5
When trouble arises
587
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air conditioning
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 sub-
sides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( →P. 464)
Check to see if the cooling fan is operating.
If the fan is operating: 
Wait until the temperature of the engine (shown on the instru-
ment panel) begins to fall and then stop the engine.
If the fan is not operating: 
Stop the engine immediately and call your Lexus dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.
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