2009 TOYOTA 4RUNNER ECU

180 2-4. Using other driving systems
■Shifting between H2 and H4
●Shifting from H2 to H4
Reduce the vehicle speed to less than 62 mph (100 km/h) and turn the
four-wheel drive control switch fully clockwise.
● Shifting from H4 to H2
Turn the four-wheel drive control switch fully counterclockwise.
This can be done at any speed.
■ If the four-wheel drive indicat or or the 4LO indicator blinks
● Shifting from H2 to H4
• If the four-wheel drive indicator continues to blink, drive straight ahead
while accelerating or decelerating.
• If the four-wheel drive indicator continues to blink and the buzzer sounds, stop the vehicle or reduce the vehicle speed to less than 62
mph (100 km/h). Operate the switch again.
● Shifting from H4 to H2
• If the four-wheel drive indicator continues to blink, drive straight ahead
while accelerating or decelerating, or drive forward or backward in a
short distance.
● Shifting to H4 or L4
If the 4LO indicator continues to blink when you operate the four-wheel
drive control switch to the H4 or L4 position, drive forward or backward in a
short distance, then stop the vehicle completely, shift the shift lever
securely into N and operate the switch again.
If the indicators continue to blink even if doing so, contact your Toyota dealer
as soon as possible. There may be a trouble in the four-wheel drive system.
■ Four-wheel drive usage freque ncy (Multi-mode 4WD models)
You should drive in four-wheel drive for at least 10 miles (16 km) each
month.
This will assure that the front drive components are lubricated.

203
2-5. Driving information
2
When driving
Cargo and luggage
Take notice of the following information about storage precau-
tions, cargo capacity and load.
●Stow cargo and luggage in the luggage compartment whenever
possible.
● Be sure all items are secured in place.
● Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
● For better fuel economy, do no t carry unnecessary weight.
■ Roof luggage carrier (if equipped)
Roof rails
Cross rails

208 2-5. Driving information
CAUTION
■Things that must not be carried in the luggage compartment
The following things may cause a fire if loaded in the luggage compart-
ment.
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
●Do not stack anything in the luggage compartment higher than the
seatbacks.
Such items may be thrown about and possibly injure people in the
vehicle during sudden braking or in an accident.
●Do not drive with objects on top of the instrument panel.
They may interfere with the driver’s field of view or move during sharp
acceleration or turning, thus impairing the driver’s control of the vehi-
cle. In an accident they may injure the vehicle occupants.
●Secure all items in the occupant compartment, as they may shift and
injure someone during an accident or sudden braking.
●Never allow anyone to ride in the luggage compartment. It is not
designed for passengers. They should ride in their seats with their seat
belts properly fastened. Otherwise, th ey are much more likely to suffer
death or serious bodily injury, in the event of sudden braking or an
accident.
■Capacity and distribution
●Do not exceed the maximum axle weight rating or the total vehicle
weight rating.
●Even if the total load of occupant’s weight and the cargo load is less
than the total load capacity, do not apply the load unevenly. Improper
loading may cause deterioration of steering or braking control which
may cause death or serious injury.

209
2-5. Driving information
2
When driving
CAUTION
■Roof luggage carrier precautions
To use the roof rails as a roof luggag
e carrier, you must fit the roof rails
with two or more genuine Toyota cross rails or their equivalent.
When you load cargo on the roof luggage carrier, observe the following:
●Before driving, make sure the cargo is securely fastened on the roof
luggage carrier.
●Loading cargo on the r oof luggage carrier will make the center of the
vehicle gravity higher. Avoid high speeds, sudden starts, sharp turns,
sudden braking or abrupt maneuvers, otherwise it may result in loss of
control or vehicle rollover due to failure to operate this vehicle correctly
and result in death or serious injury.
●If driving for a long distance, on rough roads, or at high speeds, stop
the vehicle now and then during the trip to make sure the cargo
remains in its place.
●Do not exceed 120 lb. (54 kg) cargo weight on the roof luggage carrier.
■ Cross rail adjustment
Make sure the cross rails are locked securely by pushing forward and rear-
ward them.
Failure to do so may cause an unexpected accident or severe injury in the
event of emergency braking or a collision.
●Place the cargo so that its weight is
distributed evenly between the front
and rear axles.
●If loading long or wide cargo never
exceed the vehicle overall length or
width.
( P. 470)

224 2-5. Driving information
■Matching trailer ball height to trailer coupler height
■ Before towing
Check that the following conditions are met:
●Ensure that your vehicle’s tires are properly inflated. ( P. 479)
● Trailer tires should be inflated according to the trailer manufacturer’s rec-
ommendation.
● All trailer lights work to be legal.
● 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.
No matter which class of tow hitch
applies, for a safe trailer hookup, the
trailer ball setup on must be the proper
height for the coupler on the trailer.
Coupler
Trailer ball

226 2-5. Driving information
CAUTION
■To avoid accident or injury
●Avoid holding the brake pedal down too long or applying the brakes too
frequently. This could cause the brakes to overheat and result in reduced
braking efficiency.
■ Hitches
●If you wish to install a trailer hitch, contact your Toyota dealer.
● Use only a hitch that conforms to the gross trailer weight requirement.
● Follow the directions supplied by the hitch manufacturer.
● Lubricate the hitch ball with a light coat of grease.
● Remove the trailer hitch whenever you are not towing a trailer. After
removing the hitch, seal any mounting hole in the vehicle body to prevent
entry of any substances into the vehicle.
■ When towing a trailer
●If the gross trailer weight exceeds 1000 lb. (453 kg), trailer brakes are
required. Toyota recommends trailers with brakes that conform to all appli-
cable federal and state/provincial regulations.
● Never tap into your vehicle’s hydraulic system, as this will lower the vehi-
cle’s braking effectiveness.
● Never tow a trailer without using a safety chain securely attached to both
the trailer and the vehicle. If damage occurs to the coupling unit or hitch
ball, there is danger of the trailer wandering into another lane.

248 3-2. Using the audio system
●Radio ID
You will need the radio ID when activating XM® service or reporting a
problem. Select “CH000” using or , and the receiver’s 8-
character ID number will appear.
● Satellite tuner
The tuner supports only Audio Services (Music and Talk) and the accom-
panying Text Information of XM
® Satellite Radio.
■ If the satellite radio does not operate normally (type B and C)
If a problem occurs with the XM
® tuner, a message will appear on the dis-
play. Refer to the table below to identify the problem, and take the suggested
corrective action.
ANTENNA The XM
® antenna is not connected. Check
whether the XM® antenna cable is attached
securely.
There is a short-circuit in the antenna or the sur-
rounding antenna cable. See a Toyota certified
dealer.
UPDATING You have not subscribed to the XM
® Satellite
Radio. The radio is being updated with the latest
encryption code. Contact the XM
® Satellite Radio
for subscription information. When a contract is
canceled, you can choose the “CH000” and all
free-to-air channels.
The premium channel you selected is not autho-
rized. Wait for about 2 seconds until the radio
returns to the previous channel or “CH001”. If it
does not change automatically, select another
channel. If you want to listen to the premium chan-
nel, contact the XM
® Satellite Radio.
NO SIGNAL The XM
® signal is too weak at the current location.
Wait until your vehicle reaches a location with a
stronger signal.

331
3-6. Other interior features
3
Interior features
■
The power outlet can be used when
12V
The engine switch is in the ACC or ON position.
115V AC
The engine switch is in the ON position.
CAUTION
■Using a power outlet
Observe the following precautions to reduce the risk of injury.
●Use of the power outlet when it is wet with drinking water or snow may
result in electrical shocks and is extremely dangerous. The power outlet
must be thoroughly dried before use.
● Do not allow children to use or play with the power outlet.
● Be careful not to get any part of your body caught in the power outlet lid.
● When using electrical appliances, strictly follow any cautions and notices
written on their labels and in the manufacturers’ instruction manuals.
● Do not modify, disassemble or repair the power outlet or its inverter, in any
way. Doing so may result in unexpected malfunctions or accidents, which
could cause serious damage or injuries. Contact a Toyota dealer for any
necessary repairs.
■ To prevent injuries and accidents, secu rely fix all electric appliances
before use and do not use any app liances that may do any of the fol-
lowing:
● Distract the driver while driving, or hamper safe driving.
● Result in a fire or burn injuries due to the appliance rolling, falling or over-
heating while driving.
● Emit steam, while the windows of the cabin are closed.