2021 Ram 3500 TPMS intermittency (Center Mount High Lamp leak?)

[rusticles]

Hello, I have been having intermittent issues with my TMPS sensors showing random tire (or tires) failing to read...displaying double dashes ( -- ) in place of the pressure.

When I visited the RAM dealership today, they suspect it is due to a Center Mount High Lamp (3rd brake light) leak. They suspect it is leaking on the Radio Frequency Hub (RFH) module

Known from service order:

• DTCS has stored codes for TMPS issues
• Scans of the individual TPMS sensors showed good battery life
• They relearned all sensors to the RFH
• The RFH was 'reset'
• Leak from CMHL into RFH a known issue
• Truck has 59k miles
  • They say this is not a warranty-able fix

They want $1350 to replace RFH, fix the leak, clean headliner and reprogram key fobs

Questions:

1. Has anyone experienced this?
2. Is this really not covered under warranty?

 

[flan]

Should fall under the 3/36 as far as I’m concerned.

 

[RunsWithBeer]

Lots of 5th Gen Ram 1500 owners had the leaking 3rd brake light and dealers were fixing them under warranty.

 

[rusticles]

Thanks. Apparently too many miles for the warranty coverage...

Such a bummer, since they know the design sucks...

 

[RunsWithBeer]

Thanks. Apparently too many miles for the warranty coverage...

Such a bummer, since they know the design sucks...

Well if it's the same design those forums offer advice on how to self repair. Basically, you just need a new gasket and lots of Black Silicone.