I just recently picked up a 2019 Ram 1500 used a few months back and now that we are hitting 100 degree temps I really notice that the AC isn't outputting like I was used to in my Highlander. I'm getting 55 degree vent temps. Since I bought this truck used, how does this TSB thing work? Is that an out of pocket expense on my part? Anyone have some idea what this fix runs? I'm likely to just apply the hack if I'm going to get raked over the coals on this. I like the truck but I've had several annoyances with this thing for sure. This just being the latest one.
You need to read the TSB, check yer Build Date and HVAC design and see if it falls under the TSB. 24-001-20.
AS SAID, TSB not a recall, is Tech Service Bulletin. I had done, but yer truck has to go to Dealership, and there are several checks and things has to be done, before approval. ALSO read TSB, and make sure U make the complaint/s that are listed to help with eligibility to get TSB done. Since I was still in my warranty period, no charge,. BUT it is like a 2 day JOB.
My temps now out vents are 48-50, as opposed to 48-57. A lil better. If U want to get it way down, IMHO, use the hack: Clamp or install Ball Valve in Heater core line and manually turn off, or there are blue tooth ones out there and others that can be used. The thread on the hack has numerous examples.
Good Luck on it.
(see my entries 1020, 1029-31). U have to make the decision to take the chance, cause look in PIC, had to pull out entire HVAC system: Box/Vents/Blowers and also PULL whole dash. SO U have to decide if U want to take the chance, a Personal Choice).