Well, I was looking for a new speedo for my 2017 Road King Special and I was going to go with the Cvo style Harley speedo, but my friend has a Dakota Digital led speedo he was offering. I like the Dakota digital speedos, I almost put one on my breakout when I had it. I plugged in the speedo to see if all the leds still worked and then plugged in my speedo. When I turned my bike on my odometer read the 10k miles he had on his bike. I disconnected the battery and unplugged the main fuse, waited and plugged everything back in. Still showed 10k. I thought the pcm or bcm would store the actual mileage and it would throw a dtc with the Dakota speedo on and it would go back to normal after oem speedo was plugged back in like a car. Any ideas?

 

I've heard that that's the way it works.
The mileage is stored in both the BCM and Speedo. The two talk and sync up to the highest mileage.
When you put on the speedo with 10K miles it changed your BCM to 10K.
When you put your OEM speedo back on the BCM changed it to 10K...

You may be screwed. For your sake, I hope not. I don't think the dealership can mod the mileage for obvious reasons. May need to call the MoCo... Good luck.

 

Wow, looks like you’ve got the expensive service due now......

 

Did you try riding bike around for 20 to 30 minutes to see if speedo would reset with bikes mileage?

 

I called a buddy of mine at my local dealer and he told me to ride it, sometimes, some harley speedos take up to 30 miles for things to sync up. I rode it and took it to them. But when I was there it still read 10k miles. According to my buddy, Dakota Digital has an option to program your mileage within the 1st 100 miles when it is new. If true I may just send in the Dakota speedo and program it that way. Just don't see if that is true because what would keep someone with a high miileage bike from getting a speedo and changing the mileage to a lower one.

 

...in reverse for 9,000 miles?

But seriously...talk to the dealer. But, sounds like, for consumer protection, everything was reset to highest mileage.

 

I have been told you cant take any off one bike and put on another so you can never try to cheat on the mileage. Sounds normal to me it would switch to the high number. I hope your dealer can help you out. Keep us up-dated.

 

Yep and the 30 mile thing is what happens on a brand new speedo. After 30 miles that new speedo is locked to that BCM mileage. Be interesting to know if Harley can somehow roll it back. I suspect not but ya might get lucky.

 

HD will fu(k with you on this one I'd say.

 

I'm thinking you probably will not get any help from the MOCO. Changing mileage, even if legit, can put them in a very bad place