The digital mph on my dash isn't accurate

[Goldnrod24]

I enjoy scrolling through the various displays shown on my dash. I usually keep it on the instant mpg mode. However, the mode with the digital speed reading isn't accurate.

It makes me wonder if that's the input used to calculate mpg and other readings.

Bad speed sensor? But the car runs fine. Does this dash display have its own speed sensor? Or is it shared with other functions?

I have far more questions than answers.

 

[jolly]

No "digital speed reading" in our Corollas...

 

[Goldnrod24]

No "digital speed reading" in our Corollas...

Push the "disp" button on your steering wheel. Gets you several different readings. 2 trip meters, instant mpg, average mpg and a digital mph meter.

 

[jolly]

I think you're confused : the last one is an "average speed" for the trip, not a digital speed reading.
Odometer / Trip A / Trip B / Instant MPG with temp bar / Average MPG with eco bar / Range / Average speed for trip (not "instant" speed)

 

[echarleswhyte]

yes, that is an average speed reading.

 

[Goldnrod24]

Thanks for setting me straight. I joined here to learn and it's working!