Passive entry stopped working

[pcschwenke]

About a week ago, my truck stopped unlocking the doors when insertiny hand into the handle. I changed batteries in my key FOB, and still no luck. The truck is filthy, so maybe this is the issues. Any other ideas? I live in Michigan, so the salt & sand is all over the roads...

2016 3500 Laramie
6.4l crew cab
4:10 gears

 

[boxofrokx]

Did you replace the radio? It is controlled thru it. Does your push to start work? That operates on the same system as the passive entry. There are 2 transmitters in your fob. One is the battery powered section that operates the remote door lock/unlock. The second is a RFID (like toll roads use) and operates the passive entry and push to start. It will operate with a dead battery.

 

[pcschwenke]

The radio is factory. Key fob works with the lock & unlock buttons and the passive push button lock on the door. The only part not working is the passive entry on both my wife’s key & mine on the doors.

 

[TomT]

This may be a dumb question, but is there any chance you have been wearing gloves since it’s cold?

 

[pcschwenke]

It’s not working with or without gloves. My wife said she noticed it stopped working yesterday also.

 

[TomT]

Do you have a spare key fob? Maybe try that one and see if it changes anything.

 

[pcschwenke]

Yeah, we have 2 key fobs, both do not work... If the weathers above freezing, I’ll give the truck a good bath and see if it helps. If not, I’ll have the dealer look at it when I have the tailgate latch recall done. Thanks for all the replies so far. Any other ideas should be appreciated!

 

[TomT]

I’ve never heard of cold hurting the sensors, but if you have a friend with a heated garage you could test that.

 

[TonyMM]

Did some recalls?
(Some settings were changed on mine Ram after some recalls done at the dealership)

 

[Jimmy07]

Did some recalls?
(Some settings were changed on mine Ram after some recalls done at the dealership)

^This. Go into your settings on the radio and make sure passive entry isn’t off

 

[pcschwenke]

I checked the setting first thing.

Update- it warmed up to 39 degrees F today and something must have thawed out, because the passive entry works now! Not sure what was froze... Thanks for all the replies!