If the vehicle battery is discharged LEXUS LX570 2016 Owners Manual

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6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 458
Cleaning and protecting the vehicle inte rior.................... 461
6-2. Maintenance Maintenance requirements ............................ 464
General maintenance.............. 466
Emission inspection and maintenance (I/M)
programs .................................... 469
6-3. Do-it-yourself maintenance Do-it-yourself service precautions.................................470
Hood ................................................ 472
Engine compartment ................473
Tires.................................................. 486
Tire inflation pressure ............... 495
Wheels ........................................... 499
Air conditioning filter ................ 501
Electronic key battery.............. 503
Checking and replacing fuses..............................................505
Light bulbs ....................................508 7-1. Essential information
Emergency flashers ....................514
If your vehicle has to be stopped in an emergency......515
7-2. Steps to take in an emergency If your vehicle needs to be towed..................................516
If you think something is wrong........................................... 522
Fuel pump shut off system ...... 523
If a warning light turns on or a warning buzzer
sounds ..........................................524
If a warning message is displayed .................................... 532
If you have a flat tire .................. 536
If the engine will not start .........547
If the shift lever cannot be shifted from P ........................... 549
If the electronic key does not operate properly ............. 550
If the vehicle battery is discharged ................................. 553
If your vehicle overheats ......... 556
If the vehicle becomes stuck ............................................. 559
6Maintenance and care7When trouble arises

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LX570_OM_OM60N01U_(U)3-2. Opening, closing and locking the doors
■Battery-saving function
The battery-saving function will be activated
in order to prevent the electronic key bat-
tery and the battery from being discharged wh ile the vehicle is not in operation for a long
time.
●In the following situations, the smart access system with push-button start may take
some time to unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of the outside
of the vehicle for 10 minutes or longer.
• The smart access system with push-butto n start has not been used for 5 days or
longer.
●If the smart access system with push-butto n start has not been used for 14 days or
longer, the doors cannot be unlocked at any doors except the driver’s door. In this case,
take hold of the driver’s door handle, or us e the wireless remote control or the mechan-
ical key, to unlock the doors.
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping the elec-
tronic key from receiving radio waves.
The smart access system with push-button start uses weak radio waves. In the following
situations, the communication between th e electronic key and the vehicle may be
affected, preventing the smart access system with push-button start, wireless remote
control and engine immobilizer system from operating properly.
(Ways of coping: P. 5 5 0 )
●When the electronic key battery is depleted
●Near a TV tower, electric powe r plant, gas station, radio station, large display, airport or
other facility that generates strong radio waves or electrical noise
●When the electronic key is in contact wi th, or is covered by the following metallic
objects
• Portable radio, cellular phone, cordless phone or other wireless communication
device
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
•Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the smart
access system with push-button start cannot be
used. To cancel the function, press any of the
electronic key buttons.

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LX570_OM_OM60N01U_(U)6-2. Maintenance
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Maintenance and care
Emission inspection and
maintenance (I/M) programs
The OBD system determines that a problem exists somewhere in the emission
control system. Your vehicle may not pa ss the I/M test and may need to be
repaired. Contact your Lexus dealer to service the vehicle.
●When the battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may not be com-
pletely set.
●When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary malfunction
and your vehicle may not pass the I/M test.
The error code in the OBD system will not be cleared unless the vehicle is driven
40 or more times.
Contact your Lexus dealer to prepare the vehicle for re-testing.
Some states have vehicle emission inspection programs which include OBD
(On Board Diagnostics) checks. The OBD system monitors the operation of
the emission control system.
If the malfunction indicator lamp comes on
Your vehicle may not pass the I/M test in the following situations:
When the malfunction indicator lamp s till remains on after several driv-
ing trips
If your vehicle does not pass the I/M test

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LX570_OM_OM60N01U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers ................... 514
If your vehicle has to be stopped in an emergency ..... 515
7-2. Steps to take in an emergency If your vehicle needs to be towed ................................. 516
If you think something is wrong ........................................... 522
Fuel pump shut off system ...... 523
If a warning light turns on or a warning buzzer
sounds.......................................... 524
If a warning message is displayed..................................... 532
If you have a flat tire................... 536
If the engine will not start ........ 547
If the shift lever cannot be shifted from P............................ 549
If the electronic key does not operate properly .............550
If the vehicle battery is discharged ................................. 553
If your vehicle overheats ......... 556
If the vehicle becomes stuck ............................................. 559

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When trouble arises
7-2. Steps to take in an emergency
If the engine will not start
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 again following correct starting procedures.
(P. 2 0 5 )
●There may be a malfunction in the engine immobilizer system. ( P. 76 )
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 5 5 3 )
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfun ctioning due to an electrical problem
such as an open circuit or a blown fuse. However, an interim measure is available
to start the engine. ( P. 5 4 8 )
If the engine will not start even though correct starting procedures are being
followed ( P. 205), consider each of the following points:
The engine will not start even when the starter motor operates nor-
mally.
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.
The starter motor does not turn over.

5487-2. Steps to take in an emergency
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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. 5 5 3 )
●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.
When the engine does not start, the following steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.
Set the parking brake.
Put the shift lever in P.
Set the engine switch to the ACCESSORY mode.
Push and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle inspected by your Lexus dealer.
The starter motor does not turn over, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
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When trouble arises
7-2. Steps to take in an emergency
If the vehicle battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your Lexus following the steps below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate and
doors locked. ( P. 8 0 )
Open the hood. Remove the engine compartment cover. ( P. 4 74 )
Connect the jumper cables.
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 illus-
tration.
The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can also call your Lexus dealer or qualified repair shop.
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5547-2. Steps to take in an emergency
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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.
Open and close any of the doors with the engine switch off.
Maintain the engine speed of the second vehicle and turn the engine switch to
IGNITION ON mode, 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 connected.
Once the engine starts, have the vehicle checked at your Lexus dealer, as soon
as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic, etc.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharg e and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When the battery is removed or discharged
The power back door must be initialized. ( P. 1 2 6 )
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613What to do if... (Troubleshooting)
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●Did you press the engine switch while firmly depressing the brake pedal?
(P. 2 0 5 )
●Is the shift lever in P? ( P. 2 0 5 )
●Is the electronic key anywhere detectable inside the vehicle? ( P. 1 3 3 )
●Is the steering wheel unlocked? ( P. 2 0 8 )
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (P. 551)
●Is the battery discharged? ( P. 5 5 3 )
●Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in IGNITION ON mode ( P. 5 4 9 )
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal

617Alphabetical index
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Anti-lock brake system (ABS)...................................................... 379Function ..................................................379
Warning light .......................................524
Approach warning Dynamic radar cruise control with full-speed range ....................278
Armrest .................................................... 443
Assist grips .............................................. 445
Audio input
*
Audio system*
Automatic air conditioning system ............................................401, 412Air conditioning filter......................... 501
Front automatic air conditioning system ....................... 401
Rear air conditioning system..........412
Automatic door locking and unlocking systems................................ 119
Automatic headlight leveling system .................................................... 223
Automatic High Beam ....................... 224
Automatic light control system....... 222
Automatic transmission ...................... 210 2nd start mode....................................... 211
Downshift restriction warning buzzer ....................................................214
Driving mode select switch ......... 286
If the shift lever cannot be shifted from P .................................. 549
S mode ......................................................213
AUX port
*
Auxiliary boxes .......................................427 Back door .................................................. 122
Back door handle................................ 124
Jam protection function.................... 126
Power back door ................................ 123
Wireless remote control................... 110
Back-up lights Replacing light bulbs ...................... 509
Wattage ................................................. 570
Battery ...................................................... 482 Battery checking ................................ 482
If the vehicle battery is discharged.........................................553
Preparing and checking before winter .................................... 384
Warning light ....................................... 524
Blind Spot Monitor (BSM) ............... 365
Bluetooth
®*
Bluetooth® audio*
Bluetooth® phone*
Bottle holders .........................................426
Brake Fluid ......................................................... 568
Parking brake ........................................ 217
Warning light ....................................... 524
Brake assist ..............................................379
Break-in tips ............................................. 175
Brightness control Instrument panel light control ........ 89
BSM (Blind Spot Monitor) ............... 365 Blind Spot Monitor function......... 369
Rear Cross Traffic Alert function................................................ 375
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*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.