2014 LEXUS LX570 check engine light

Maintenance and care
4
729
LX570_OM_OM60L21U_(U) 4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ............ 730
Cleaning and protecting
the vehicle interior ............. 733
4-2. Maintenance
Maintenance
requirements........................ 736
General maintenance .......... 739
Emission inspection and
maintenance (I/M)
programs ................................ 742
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ............................ 743
Hood ........................................... 746
Engine compartment ............ 747
Tires............................................. 762
Tire inflation pressure............. 771
Wheels ....................................... 775
Air conditioning filter ............ 777
Electronic key battery.......... 780
Checking and replacing
fuses ........................................ 782
Light bulbs ................................ 799

7574-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) Power steering fluid
■ Fluid level
The fluid level should be within the appropriate range.
Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: Vehicle has been driven arou nd 50 mph (80 km/h) for 20 min-
utes, or slightly longer in frigid temperatures. (Fluid tempera-
ture, 140  F - 175  F [60  C - 80  C]).
Cold: Engine has not been run for about five hours. (Room tempera-
ture, 50  F - 85  F [10  C - 30  C]).
■ Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall and remove the reservoir cap again.
Check the fluid level.Fluid type Automatic transmission fluid DEXRON ®
II or III
Items Rag or paper, Clean funnel (only for adding fluid)STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

7994-3. Do-it-yourself maintenance
4
Maintenance and care
LX570_OM_OM60L21U_(U) Light bulbs You may replace the following bulbs yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems
difficult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
■ Prepare a replacement light bulb
Check the wattage of the light bulb being replaced. (  P. 890)
■ Remove the engine compartment cover
 P. 74 8
■ Front bulb locations Headlight high beamFront turn signal light

8265-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel empty?
If it is, fill the fuel tank immediately. ●
Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, contact
your Lexus dealer as soon as possible. ■
If the low speed four-wheel drive indicator light or the center differential lock
indicator light blinks
Take the specified steps. (  P. 333)
If the brake system warning light or the ma lfunction indicator light also comes on, or
the low speed four-wheel drive indicator light or the center differential lock indica-
tor light continues to blink after taking th e specified steps, there may be a malfunc-
tion in the engine, the brake system or the four-wheel drive system. In this case, you
may not be able to transfer between “H4” and “L4” modes, and the center differen-
tial lock may not be able to be locked or unlocked. Have the vehicle inspected by
your Lexus dealer, immediately. ■
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 passenger is not sitting in
the seat. ●
If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.

5
When trouble arises
8275-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) ■
SRS warning light
This warning light system monitors the following: ●
The airbag sensor assembly ●
Front impact sensors ●
Side impact sensors (rear) ●
Side impact sensors (front door) ●
Safing sensor (rear) ●
The driver’s seat belt buckle switch ●
The driver’s seat position sensor●
Front passenger’s seat belt buckle switch ●
The airbags ●
The interconnecting wiring and power sources ●
The front passenger occupa nt classification system●
“AIR BAG ON” and “AIR BAG OFF” indicator lights ●
The seatbelt pretensioners ●
The “RSCA OFF” indicator light■
Changing the engine oil
Make sure to reset oil change system ■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch does not turn off the tire pressure warning light. ■
The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks or tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).

5
When trouble arises
8295-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) ■
If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by Lexus dealer.
CAUTION■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause 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 pres-
sure immediately. ●
If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If the tire is flat,
change to the spare tire and have the flat tire repaired by the nearest Lexus
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 system may not activate immediately.

8425-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Have the malfunction repaired immediately.
After taking the specified steps to co rrect the suspected problem, check
that the warning message and light go off. Interior
buzzer Exterior
buzzerWa r n i n g m e s s a g e Details Correction
procedure
Once
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.

8645-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) Emergency start function
When the engine does no t start, the following s teps 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”.
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch about 15 sec-
onds while depr essing the brake pedal firmly.
Even if the engine can be started using the above step s, the system may
be malfunctioning. Have the vehicle checked by your Lexus dealer.■ The starter motor does not turn over, the interior lights and head-
lights 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. 870)
● There may be a malfunction in the steering lock system.Contact your Lexus dealer, if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4