2010 TOYOTA 4RUNNER check engine light

188 2-2. Instrument cluster
4RUNNER_U
■The meters and display illuminate when (Optitron type meter)
Vehicles without a smart key system:
The engine switch is in the “ON” position.
Vehicles with a smart key system:
The “ENGINE START STOP” switch is in IGNITION ON mode.
■ Eco Driving Indicator operates when
The vehicle is being driven with the shift lever in D.
■ When the average fuel consumption is reset
The average fuel consumption displayed on the accessory meter and “Past
Record” screen of the navigation system (if equipped) will be reset at the
same time.
■ The brightness of the instrument panel lights (Optitron type meter)
When the headlight switch is turned to on, the brightness will be reduced
slightly unless the control dial is turned fully upward.
NOTICE
■ To prevent damage to the engine and its components
● Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. ( P. 603)
■ While driving (Optitron type meter)
When the voltmeter indicates more than 19 V or less than 9 V, the battery
may be malfunctioning. Have your vehicle checked at your Toyota dealer.

192 2-2. Instrument cluster
4RUNNER_U
*: These lights turn on when the “ENGINE START STOP” switch is turnedto IGNITION ON mode (vehicles with a smart key system) or the
engine switch is turned to the “ON” position (vehicles without a smart
key system) to indicate that a system check is being performed. They
will turn off after the engine is started, or after a few seconds. There
may be a malfunction in a system if a light does not come on, or if the
lights do not turn off. Have the vehicle inspected by your Toyota dealer.
(if equipped)
Crawl Control indicator
(P. 241) Security indicator
(P. 106, 109)
Eco Driving Indicator
Light ( P. 185)
(if equipped)
Intuitive parking assist
indicator ( P. 213)
SRS airbag on-off indi-
cator (P. 129)
*
*
*

193
2-2. Instrument cluster
2
When driving
4RUNNER_U
CAUTION
■
If a safety system warning light does not come on
Should a safety system light such as the ABS or SRS warning light not come
on when you start the engine, this could mean that these systems are not
available to help protect you in an accident, which could result in death or
serious injury. Have the vehicle inspected by your Toyota dealer immediately
if this occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in any of the
vehicle’s systems. ( P. 565)
*: These lights turn on when the “ENGINE START STOP” switch is
turned to IGNITION ON mode (vehicles with a smart key system) or
the engine switch is turned to the “ON” position (vehicles without a
smart key system) to indicate that a system check is being per-
formed. They will turn off after the engine is started, or after a few
seconds. There may be a malfunction in a system if a light does not
come on, or if the lights do not turn off. Have the vehicle inspected
by your Toyota dealer.
(if equipped)(if equipped)(if equipped)(U.S.A.)
(Canada)(U.S.A.)(Canada)(if equipped)
(if equipped)(if equipped)
********
*****
***

206 2-3. Operating the lights and wipers
4RUNNER_U
■The windshield wipers and washer can be operated when
Vehicles without a smart key system: The engine switch is in the “ON” posi-
tion.
Vehicles with a smart key system: The “ENGINE START STOP” switch is in
IGNITION ON mode.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the
windshield washer fluid reservoir.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■ When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■ When a nozzle becomes blocked
Do not try to clear it with a pin or other object. The nozzle will be damaged.
Washer/wiper dual opera-
tion
The wipers will automatically
operate a couple of times after
the washer squirts.
CTH23AS029

208 2-3. Operating the lights and wipers
4RUNNER_U
■When the rear window wiper and washer switch is turned off
The rear wiper will stop operation, and return to the retracted position after
approximately 3 seconds.
However, if the engine switch is turned to the “ACC” or “LOCK” position
(vehicles without a smart key system) or the “ENGINE START STOP” switch
is turned to ACCESSORY mode or tur ned off (vehicles with a smart key sys-
tem) while the rear wiper is operating, the rear wiper will stop at that position
and will not return to the retracted position.
■ If no washer fluid sprays
Check that the washer nozzle is not blocked if there is washer fluid in the
washer fluid reservoir.
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. drip prevention function) can be changed.
(Customizable features P. 638)
NOTICE
■When the rear window is dry
Do not use the wiper, as it may damage the rear window.
■ When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■ When a nozzle becomes blocked
Do not try to clear it with a pin or other object. The nozzle will be damaged.

289
2-5. Driving information
2
When driving
4RUNNER_U
■
Service connector for towing brake controller
■ Before towing
Check that the following conditions are met:
● The vehicle’s tires are properly inflated.
● Trailer tires are inflated according to the trailer manufacturer’s recom-
mendation.
● All trailer lights work.
● All lights work each time you connect them.
● The trailer ball is set up at the proper height for the coupler on the t\
railer.
● The vehicle remains level when a loaded or unloaded trailer is hitched.
Do not drive if the vehicle is not level, and check for improper tongue
load, overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors appropriate for
towing purposes.
■ Break-in schedule
If your vehicle is new or equipped with any new power train components
(such as an engine, transmission, differential and wheel bearing), Toyota
recommends that you do not tow a trailer until it has been driven for over 500
miles (800 km).
However, avoid full throttle acceleration.
Your vehicle is equipped with a service
connector for the trailer brake controller
as shown.
CTH25AS008

Maintenance and care4
477
4RUNNER_U
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 478
Cleaning and protecting the vehicle interior .......... 481
4-2. Maintenance Maintenance requirements .................. 484
General maintenance....... 486
Emission inspection and maintenance (I/M)
programs ........................ 490
4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................... 491
Hood ................................ 494
Engine compartment ........ 495
Tires ................................. 514
Tire inflation pressure ...... 520
Wheels ............................. 524
Air conditioning filter......... 526
Wireless remote control/ electronic key battery ..... 528
Checking and replacing fuses .............................. 531
Light bulbs........................ 541

541
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perfor m, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( P. 622)
■ Removing the engine compartment cover
P. 497
■ Front bulb locations
CTH43AS100
Parking light
and front side
marker light
Fog light
(if equipped) Headlight high beam Headlight low beam
Front turn signal light and
daytime running light