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the tyre pressure will be on a decal on the edge of the door ,door opening or door pillar
it will show the required tyre size, pressure for both laden and unladen rated speed of the tyres in use
contact a toyota service centre and ask the attendant
I can calculate it with spreadsheet I made, call myself tyre-pressure specialist nowadays.
Depends on tyres maximum load and Pressure needed for that ( AT pressure 6pr 55psi/3.8 bar, 8pr 65psi/4.5bar or 69/70psi/4.75/4.8bar). and maximum speed of tyre given as letter mostly N to R for caravans.
Then from Caravan MPVW ( max permissable Vehicle Weight).
Or better real weight ( overloading is more rule then exeption and unequall load is possible.
But normal car tyres or XL/reinforced/Extraload are sometimes OK if they have enaugh maximum load for MPVW.
Will try to make picture of example.
you should be running 8 ply tyres on the vehicle to carry the maximum load as required by the regulator
The recommended tyre pressure will be on a decal attached to the drivers door ( probably on the door frame under the latch)
Having said all that I recommend 45 psi for the rear and 40 for the front
If you run any less ,the ride will be smoother but if you load the vehicle, the rear tyres are under inflated and prone to failure from overheating
tyres are manufactured to run at a certain pressure due to the construction of the case. Talk to a tyre shop as to the pressure you should be using for the tyres.
The required tyre pressure is established by the amount of load or weight that the tyre is carrying. Over or under inflation can cause excessive tire tread wear. The recommended pressures for your tyres are shown in raised lettering on the sidewall of the tyres.
Depending on what you are towing, you will know how much additional weight is being placed on the cars rear tyres, and you can adjust the pressure accordingly.
Personally, When I am towing, I increase the tire pressures by about 5 psi just to reduce sidewall flexing and create a more stable towing package.
Hope this helps.
Keep air and fuel filters clean. Run standard tyres and not bigger/ better ones as they take power to rotate. Keep tyre pressures on the high side of recommended pressure.. Don't carry any unnecessary loads/bull bars/racks/ lights etc...Diesel engines only use enough fuel to maintain the setting required by you foot so high speeds mean full fuel setting at all times. Use a tray cover as the rear of the tray/ body creates drag from the air. Check that the brakes allow the rotors to turn free. Remember every bit of effort requires extra fuel so consider everything in the search for better economy.
Hi make sure your tyre pressure is correct then switch Ignition ON, scroll the the switch you mentioned untill the symbol of Tyre pressure monitor displayed at intrument cluster. press and release then Press again and hold for atlest 5 sec. the side button of switch untll the box beside the Tyre pressure monitor got tick sign. Ignition off and verify the system operation.
I believe your tire calls for 32PSI. Try to setting it to 36PSI and starting the car to see if it resets. If it does, you can let the extra air out. Sometimes a difference of 2-3 PSI from the set value won't reset it.
Some vehicles also require being driven at speeds above 40mph for about 15 minutes before the light will reset
It depends on the type of pressure monitor system that is used.
Some work off the ABS sensors, measuring the rotation speed of the wheels (if a wheel slows down it indicated the tyre pressure is low.) It is possible that a different wheel / tyre size could require the system to be reset / recalibrated.
More common is to have a set of sender units mounted inside the tyre (usually forming part of the valve assembly.) Did you transfer the sender units from your old wheels to your new ones? This could well be the problem.
All manufacturers put the tire size and air pressure requirements on a label attached either to the driver door post, or the end of the door. If u can't find it, let me know.
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