kb42

We've had our 2013 RX350 CPO for about a month now. We traveled to NC a few weeks ago and I noticed that the speedo would read 70 but the computer Ave. MPH would read 4 mph less. This was using cruse on the highway. In about an hours time I zeroed the Ave. MPH a couple of times only to have the same result. It still is happening at any speed. Is anyone else experiencing this or is it a dealer issue? Thanks for any input.

yardie876

The average speed read out I believe takes the total time the car is running into the average speed. That includes time idling at a light, in the driveway, etc. the most I have seen is ~19mph.

Raoul

OP is resetting it while the cruise is engaged and flying through beautiful North Carolina @ 70 mph, no idling or traffic lights in play.

Best to go to Confucius on this one.

Confucius say,
Man with watch knows what time it is.
Man with two watches never sure.

Clutchless

I find it to be minimally useful. It is a good reminder that just because you go 80 you waste more time at traffic signals and slow traffic than was apparent at the time.

mcomer

Try a reset before releasing the car to a family member...or a valet parker!