2021 Owners - How is your A/C?

[AresSK]

Does anyone have the TSB number I see referenced in this thread? I have a 19 Limited which I took in for AC complaint while under warranty. They said it was normal. I’m out of warranty now but if there’s a TSB available now maybe I can get them do the fix. Thanks.


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[Snofire]

I haven't had any issues with my A/C. Works as it should

 

[Paultg]

Does anyone have the TSB number I see referenced in this thread? I have a 19 Limited which I took in for AC complaint while under warranty. They said it was normal. I’m out of warranty now but if there’s a TSB available now maybe I can get them do the fix. Thanks.


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See attached.

 

[Str8Cracker]

My 2019 AC was just ok and I don’t notice any difference with my 2021. Defiantly could be better.

 

[Fidomac]

I have a 2020 that's going in for the A/C TSB. They just ordered the parts.

2020 Bighorn Night Edition, 5.7 Hemi w/eTorque

What does that entail.? Or a link to the TSB.? Thx

 

[vincentw56]

TSB is above I think. It is a new blend box or something. I'm still waiting.

2020 Bighorn Night Edition, 5.7 Hemi w/eTorque

 

[R4M]

My 2021 blows very cold, even in hot and humid San Antonio, Texas. Today was in the 90s with heat index to 108, I’m able to cool off the interior quickly and cruise around with the fan on the lowest setting. For comparison, I had a early model 2019 that never got cold, fan on high/low, all kinds of combinations and it was just very uncomfortable to be in the truck. Seems like everything is fixed on this front!

For clarification

2019 tradesmen, 5.7 with manual ac controls
2021 lone star 5.7 with manual ac controls

 

[4x4Laramie]

My 2021 Laramie blows very cold. I've only had it since December, so I haven't had to deal with Texas summer yet...but its starting to warm up now and the A/C has felt nice and cold

 

[SpookyWatcher]

My only problem now is the musty smell that happens after I use max ac with recirc on. It happens after I turn ac off or with just fan. I know there is a thread on in. Need to go read it and tackle that this week.

 

[vincentw56]

My only problem now is the musty smell that happens after I use max ac with recirc on. It happens after I turn ac off or with just fan. I know there is a thread on in. Need to go read it and tackle that this week.

Try replacing your cabin filter.

2020 Bighorn Night Edition, 5.7 Hemi w/eTorque

 

[Malodave]

I think mine is just under OK, but I do have a Black Truck. The other thing
I noticed is if the Fan is at Max Speeds, it seems to be hunting for a RPM. You
would think that the Speed Controller would just put out a specific Voltage to
the Fan and hold it constant.

Malodave

 

[FN-2187]

I think mine is just under OK, but I do have a Black Truck. The other thing
I noticed is if the Fan is at Max Speeds, it seems to be hunting for a RPM. You
would think that the Speed Controller would just put out a specific Voltage to
the Fan and hold it constant.

Malodave

The fan speed will turn itself down if your phone gets a text message or the truck alerts you to something as well. I noticed that right away. I think they do that so you can hear the alerts.

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[Malodave]

The fan speed will turn itself down if your phone gets a text message or the truck alerts you to something as well. I noticed that right away. I think they do that so you can hear the alerts.

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No, this is just while driving. No Phone Text Messages/Calls or Alerts.
The Radio Volume needs to be low to hear it, but it is varying its Speed.

Malodave

 

[FN-2187]

No, this is just while driving. No Phone Text Messages/Calls or Alerts.
The Radio Volume needs to be low to hear it, but it is varying its Speed.

Malodave

I would be taking it to the dealer for sure. I will make sure to keep my eye on mine too. That is super weird.

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[Malodave]

I would be taking it to the dealer for sure. I will make sure to keep my eye on mine too. That is super weird.

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There is a TSB for 2019-2020 RAMs for the Fan Speed:

TSB S2008000171 - HVAC Blower Motor Changes Speed:

S2008000171 RAM Technical Service Bulletin

S2008000171 RAM Technical Service Bulletin

www.tsbsearch.com

This was Published the Day before my Truck was Built.

Malodave

 

[FN-2187]

There is a TSB for 2019-2020 RAMs for the Fan Speed:

TSB 52008000171 - HVAC Blower Motor Changes Speed

Malodave

Good to know. Yours is a 2021 right? I wonder how long it will take for that to include it?

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[Malodave]

Good to know. Yours is a 2021 right? I wonder how long it will take for that to include it?

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Yes, a 2021 Laramie. I may just run it past the Dealer to Document it.

Malodave

 

[mfrc51]

2021 Laramie 94 degrees out worked excellent..

 

[Morenar]

Just came across this for 2021 Ram 1500

https://static.nhtsa.gov/odi/tsbs/2021/MC-10194024-9999.pdf

Symptom/Vehicle Issue: A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11

 

[Quint]

It's been in the mid-to-upper 90s in Minnesota for the past week. I'm not impressed with the A/C. I blow all of the hot air out driving, then close the windows and it still takes a good 10 minutes to cool down. It never feels cold but just cool. I'll have to keep experimenting.