Maintanence Required Light - Toyota Yaris Forums

mkorejwo · 08-13-2007, 05:08 PM

It is possible to monitor the condition of the oil in real-time. Some cars have such a thing. One method detects the percentage of particulate material. New oil has very little, dirty oil is loaded with carbon particles. Wiki pedia has good information on turbidity.

Toyota tell us, in the owners manual, how to reset the light:
Buried on page 121 of the handy manual.....

ref: 2007 Yaris hatchback from Jan '06 Prod (OM52700U), page 121, item (m):

"
.....

The system must be reset after the engine oil replacement. Reset the system by the following procedure:

1. Turn the ignition key to the "OFF" position with the trip A reading shown.

2. Turn the ignition key to the "ON" position while holding down the trip meter reset knob.

Hold down the knob for at least 5 seconds. The indication light flashes and the bars displayed in the odometer disappear gradually. The odometer indicates "000000" and the light goes off.

If the system fails to reset, the light will continue flashing. "

Well these instructions seem reasonable. Toyota isn't telling us the mileage interval (probably 5000 miles) and it probably can be reset anytime, and the light will turnon when 5000 miles has elapsed. I think the light is just tied to an elapsed mileage counter. If you reset it at 7,000 miles, it would just turn on again at 12,000 miles.

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08-13-2007, 05:08 PM	#12
mkorejwo Drives: 2010 5 door hatchback Join Date: Apr 2007 Location: Philadelphia, PA, USA Posts: 10	It is possible to monitor the condition of the oil in real-time. Some cars have such a thing. One method detects the percentage of particulate material. New oil has very little, dirty oil is loaded with carbon particles. Wiki pedia has good information on turbidity. Toyota tell us, in the owners manual, how to reset the light: Buried on page 121 of the handy manual..... ref: 2007 Yaris hatchback from Jan '06 Prod (OM52700U), page 121, item (m): " ..... The system must be reset after the engine oil replacement. Reset the system by the following procedure: 1. Turn the ignition key to the "OFF" position with the trip A reading shown. 2. Turn the ignition key to the "ON" position while holding down the trip meter reset knob. Hold down the knob for at least 5 seconds. The indication light flashes and the bars displayed in the odometer disappear gradually. The odometer indicates "000000" and the light goes off. If the system fails to reset, the light will continue flashing. " Well these instructions seem reasonable. Toyota isn't telling us the mileage interval (probably 5000 miles) and it probably can be reset anytime, and the light will turnon when 5000 miles has elapsed. I think the light is just tied to an elapsed mileage counter. If you reset it at 7,000 miles, it would just turn on again at 12,000 miles.