DO?IT?YOURSELFMAINTENANCE -> Checking tire inflation pressure for Your Toyota 4 Runner SUV Fourth Generation (2003-2009)

07 12.25  
Checking tire inflation  
pressure  
Clean all dirt from the outside of the res-  
ervoir tank and look at the fluid level. If  
the fluid is cold, the level should be in the  
“COLD” range. Similarly, if it is hot, the  
fluid level should be in the “HOT” range.  
If the level is at the low side of either  
range, add automatic transmission fluid  
DEXRONrII or III to bring the level within  
the range.  
Keep your tire inflation pressures  
at the proper level.  
The recommended cold tire inflation  
pressures, tire sizes and the com-  
bined weight of occupants and cargo  
(vehicle capacity weight) are de-  
scribed on pages 462 and 467. They  
are also on the tire and loading infor-  
mation label.  
You should check the tire inflation  
pressure every two weeks, or at least  
once a month. And do not forget the  
spare!  
To remove the reservoir cap, turn it coun-  
terclockwise and lift up. To reinstall it,  
turn it clockwise. After replacing the reser-  
voir cap, visually check the steering box  
case, vane pump and hose connections  
for leaks or damage.  
The following instructions for  
checking tire inflation pressure  
should be observed:  
CAUTION  
The reservoir tank may be hot so be  
careful not to burn yourself.  
D The  
pressure  
should  
be  
checked only when the tires are  
cold. If your vehicle has been  
parked for at least 3 hours and has  
not been driven for more than 1.5  
km or 1 mile since, you will get  
an accurate cold tire inflation pres-  
sure reading.  
NOTICE  
Avoid overfilling, or the power steer-  
ing could be damaged.  
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07 12.25  
D If you cannot adjust the tire  
pressure when the tires are  
cold, add 20 to 30 kPa more to  
the front tires and rear tires than  
the cold tire pressure, but never  
exceed the maximum cold tire  
pressure molded on the tire side-  
wall.  
D Always use a tire pressure  
gauge. The appearance of a tire  
can be misleading. Besides, tire  
inflation pressures that are even  
just a few pounds off can degrade  
ride and handling.  
5. After completing the tire inflation  
pressure measurement and ad-  
justment, apply soapy water to the  
valve and check for leakage.  
Tire pressure gauge  
6. Install the tire valve cap.  
If a gauge and air pump are not avail-  
able, have your vehicle checked by  
your Toyota dealer.  
CAUTION  
Be sure to reinstall the tire valve  
caps. Without the valve caps, dirt  
or moisture could get into the  
valve core and cause air leakage.  
If the caps have been lost, have  
new ones put on as soon as pos-  
sible.  
INSPECTION AND ADJUSTMENT  
PROCEDURE  
1. Remove the tire valve cap.  
2. Press the tip of the tire pressure  
gauge to the tire valve.  
D Do not bleed or reduce tire  
inflation pressure after driving.  
It is normal for the tire inflation  
pressure to be higher after driving.  
D Never exceed the vehicle capac-  
ity weight. Passenger and lug-  
gage weight should be located so  
that the vehicle is balanced.  
3. Read the pressure using the grad-  
uations of the gauge.  
NOTICE  
4. In case the tire inflation pressure  
is not within the prescribed range,  
insert the compressed air from the  
valve. In case of applying too  
much air, press the center of the  
valve and release the air to adjust.  
Use only the original valve cap.  
If any other valve cap is used,  
it may corrode or melt and be-  
come difficult or impossible to  
remove.  
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