So when looking up a replacement for the 2015 LR4 HSE Interior Rearview mirror with Homelink and Auto Dimming features, I see listings for 2 types - one with 315 mHz and one that uses 433 mHz. Apparently it comes up in a search for TPMS sensors as well. So how do we determine which frequency is in use on the vehicle? Can it be seen with a GAP IID? Dealer wants me to bring it in for them to determine (with cost of course).

TIA//df

 

I believe 315mhz is for north America and 433 is for the rest of the world. At least it works that way for key fobs so I assume it's the same here