old scangauge from gen 3 to gen4

According to to their website, it should work:

» OBDII Compatibility

 

Check the firmware release number. They will update for a modest fee.

 

From my reading of the ScanGuage website many of the Gen 4 XGuages require firmware 4.22.

» X-Gauge Categories » GENERATION IV PRIUS 2016+

From their site, if you have at least 4.00 you can purchase a firmware update for $25.

» Upgrade

 

I have an old ScanGauge2 without the Xgauge update and have recently moved it from my previous 2005 to my 2017. I just use it to check rpm and coolant temperature at the moment to get a feel for stage 4 warm up.

 

My old Scangauge caused the Sonic to have a hissy fit when plugged it; TC and ABS lights on with hard shifting. I contacted Linear Logic, and they said it likely needed a firmware update. They did so for free; I only had to pay for shipping to them. That fixed it. I recommend the Scangauge over other brands because they have great customer support.