Some interesting tid bits in the owners manual...

[MFP]

Switched batteries a couple weeks ago so the clock time needs to be reset but I haven’t been able to get the hours or minutes to flash so I could adjust them, I must be doing something wrong but haven’t been able to figure it out ??

Do you need a pic of the info on how to do so from the manual?
*Edit: I see you have a '18 not a '13.

 

[Sierra1]

Switched batteries a couple weeks ago so the clock time needs to be reset but I haven’t been able to get the hours or minutes to flash so I could adjust them, I must be doing something wrong but haven’t been able to figure it out ??

Get to the maintenance screen. Toggle down to the clock. Push and hold the button on the left side of the screen that resets the trip. That gets it flashing.

 

[Cycledude]

Get to the maintenance screen. Toggle down to the clock. Push and hold the button on the left side of the screen that resets the trip. That gets it flashing.

Well I went back out to garage to try that with no luck so start trying some other stuff , not sure what I did but the time started flashing and I was able to set it properly. I often have trouble with the reset button not working properly after refueling. Thanks for the help !

 

[Kruzzin5]

Well I went back out to garage to try that with no luck so start trying some other stuff , not sure what I did but the time started flashing and I was able to set it properly. I often have trouble with the reset button not working properly after refueling. Thanks for the help !

To reset after fueling, I quickly tap the reset button…2X…and it starts flashing.

 

[Cycledude]

To reset after fueling, I quickly tap the reset button…2X…and it starts flashing.

Yes I guess that’s the way it’s supposed to work and that’s the way mine usually works but sometimes it gives me grief and doesn’t work like it’s supposed to for awhile.