check engine light Lexus ES350 2008 User Guide

Maintenance and care4
281
ES350_U_(L/O_0708)
4-1. Maintenance and care ............................... 282
Cleaning and protecting the vehicle exterior............ 282
Cleaning and protecting the vehicle interior ............. 285
4-2. Maintenance .................. 288 Maintenance requirements ....................... 288
General maintenance .......... 290
Emission inspection and maintenance (I/M)
programs
................................. 293
4-3. Do-it-yourself maintenance ................ 294
Do-it-yourself service precautions ........................... 294
Hood ......................................... 298
Positioning a floor jack ......... 299
Engine compartment ............. 301
Tires ............................................. 316
Tire inflation pressure ........... 324
Wheels ..................................... 328
Air conditioning filter........... 330
Electronic key battery ......... 332
Checking and replacing fuses......................................... 334 Headlight aim (vehicles with
discharge headlights) ........ 342
Light bulbs................................ 343

293
4-2. Maintenance
4
Maintenance and care
ES350_U_(L/O_0708)
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include
OBD (On Board Diagnostics) checks. The OBD system monitors the oper-
ation of the emission control system.
■If the electronic engine contro l system warning light comes on
The OBD system determines that a problem exists somewhere in
the emission control system. Your vehicle may not pass the I/M test
and may need to be repaired. Cont act your Lexus dealer to service
the vehicle.
■ Your vehicle may not pass the I/M test:
●When the battery is disconnected or discharged
Readiness codes that are set du ring ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The electronic engine control system warning light comes on as a
temporary malfunction and your vehicle may not pass the I/M
test.
■ When the electronic engine control system warning light goes off
after several driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Lexus dealer to prepare the vehicle for re-testing.

343
4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U_(L/O_0708)
Light bulbs
You may replace the following bulbs yourself. 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. 4 1 7 )
■ Remove the engine compartment cover.
→ P. 302
■ Front bulb locations
■ Rear bulb locations
Headlight high beam
Headlight
low beam
(halogen
bulb)
Front turn signal lightFront side marker light
Parking light
Rear turn signal light Stop/tail light
Rear side marker light

370
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by your Lexus dealer.
■Customization that can be configured at Lexus dealer
The vehicle speed linked seat belt reminder buzzer can be disabled. (Customizable
features →P. 433)
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.

5
When trouble arises
395
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
Emergency start functionWhen the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally. Set the parking brake.
Shift the shift lever to P.
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Push and hold the “ENGINE START STOP” switch about 15 sec-
onds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, 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. 4 0 0 )
● 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.
STEP1
STEP2
STEP3
STEP4

5
When trouble arises
401
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned 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.
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any part other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
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 START
STOP” switch OFF.
Maintain the engine speed on the second vehicle and turn the
“ENGINE START STOP” switch to the 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 con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP3
STEP4
STEP5
STEP6

413
6-1. Specifications
6
Vehicle specifications
ES350_U_(L/O_0708)
Electrical system
Automatic Transaxle
*: The fluid capacity is a reference quantity. If replacement is necessary, contactyour Lexus dealer.
Battery
Open voltage at
68 °F (20 °C):12.6  12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(Voltage is checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Fluid capacity*6.76 qt. (6.4 L, 5.63 lmp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
Using automatic transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transaxle accompanied by vibration,
and ultimately damage the automatic transaxle of your vehicle.

446
Alphabetical index
ES350_U_(L/O_0708)
DisplayDynamic radar crui se control ....... 142
Trip information .................................... 129
Warning message............................. 373
Do-it-yourself maintenance ............. 294
Door courtesy lights Door courtesy lights..........................247
Wattage.................................................... 417
Doors Door glasses ........................................... 60
Door lock................................. 22, 34, 37
Side mirrors ............................................. 58
Driver's seat belt reminder light ..... 364
Driving Break-in tips ...........................................107
Correct posture .................................... 75
Procedures ............................................ 106
Winter driving tips............................... 167
Driving position memory ...................... 44
Electronic key If the electronic key does not
operate properly ............................398
Emergency, in case of
If the electronic key does not operate properly ............................398
If the engine will not start ............... 394
If the shift lever cannot be shifted from P ...................................396
If the vehicle has discharged
battery ................................................. 400
If the warning buzzer sounds ...... 362
If the warning light turns on .......... 362 If the warning message is
displayed .............................................373
If you have a flat tire ........................ 384
If you lose your keys .........................397
If you think something is wrong .................................................. 358
If your vehicle becomes stuck .... 405
If your vehicle needs to be towed ................................................... 352
If your vehicle overheats................ 403
Engine Compartment ....................................... 301
Engine switch .......................................... 114
Hood ....................................................... 298
How to start the engine ..................... 114
Identification number ...................... 409
If the engine will not start ............... 394
Ignition switch ......................................... 114
Overheating ........................................ 403
Engine compartment cover ............. 302
Engine coolant Capacity .................................................. 412
Checking............................................... 307
Preparing and checking
before winter...................................... 167
Engine coolant temperature
gauge ....................................................... 122
Engine immobilizer system ................. 70
Engine oil Capacity .................................................... 411
Checking............................................... 303
Preparing and checking
before winter...................................... 167
Engine oil maintenance data ........... 306
Event data recorder ............................ 360
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