WenmarOpen by Wenmar Pro

Service bulletins for the 2019 Ram 1500

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1178 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
91001142023-05-30. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Duct Assy Charge Air Cooler In If the seal is missing from inside a Henn connector, please search for the missing seal. It could have been pulled out while removal of the hose from the spigot if it was partially stuck to the spigot. It could have been blown into the hose or CAC. If that is the only concern with the CAC Hose Assembly, then replace the seal with a new replacement seal instead of replacing the entire hose assembly.
S23230000042023-02-13. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Defogger Is Not Working. Terminal Detached From The Glass.
S22230000632023-01-09. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Ambient Temperature Sensor Servicing.
S2224000001RevA2023-01-09. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer indicates AC does not blow cool air. Possible DTC B11FE-11 or B11FE-15 Variable Compressor Control Circuits.
S22230000632022-11-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. Ambient Temperature Sensor Servicing.
S2224000001RevA2022-10-31. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer indicates AC does not blow cool air. Possible DTC B11FE-11 or B11FE-15 Variable Compressor Control Circuits.
S2224000001RevA2022-10-31. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer indicates AC does not blow cool air. Possible DTC B11FE-11 or B11FE-15 Variable Compressor Control Circuits.
23029222022-10-17. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Active Air Dam Not Functioning - X96 Warranty Extension This bulletin involves replacing the active front air dam. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find thatthe following Diagnostic Trouble Code (DTC) has been set: U0645 - Lost Communication With Active Air Dam Module. The customer may also comment on the following: The Active Air Dam is inoperable.
S20240000032022-09-26. Service bulletin. STRUCTURE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer Indicates A Whistle Noise From Dash During Certain Driving Parameters.
90039682022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM. CONDENSER, Air Conditioning CONDITION 1: If it is determined that the A/C compressor does not engage due to a refrigerant leak at the receiver/drier plug on the A/C condenser, order the receiver/drier plug kit P/N 68447796A$ and follow the repair instructions included on the instruction sheet. CONDITION 2: For stock at the dealership of the below Part Number level or older ONLY, use kit 68447796A$ to change the desiccant BAG and the desiccant bag access PLUG before installing the Cooler on the vehicle. 52014588AD level and older only. 52014609AC level and older only. 52014632AC level and older only. 52014797AG level and older only. 52014948AE level and older only. 52014978AF level and older only.
S21240000032022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11
S19240000192022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer Indicates That Temperature Varies From Side To Side Being Colder On One Side Compared To The Other.
S1924000019RevB2022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer Indicates That Temperature Varies From Side To Side Being Colder On One Side Compared To The Other.
S21240000042022-09-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C does not cool and vehicle is low on Freon charge but no leak is found with sniffer or black light anywhere in the system
S1924000019 Rev.2021-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Customer Indicates That Temperature Varies From Side To Side Being Colder On One Side Compared To The Other.
S2024000003 Rev.2021-03-15. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT. Customer Indicates A Whistle Noise From Dash During Certain Driving Parameters.
24-001-202020-12-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC Housing Service This bulletin informing the Technician about an HVAC housing redesign with components that need to be serviced together when servicing the HVAC housing. Customers may experience the following: Poor Air conditioning system performance (Slow or excess time to cool down). HVAC is slow to cool, left center instrument panel outlet is warmer than right side instrument panel outlets.
24-001-202020-12-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. HVAC Housing Service This bulletin informing the Technician about an HVAC housing redesign with components that need to be serviced together when servicing the HVAC housing. Customers may experience the following: Poor Air conditioning system performance (Slow or excess time to cool down). HVAC is slow to cool, left center instrument panel outlet is warmer than right side instrument panel outlets.
S2024000003 Rev.2020-10-26. Service bulletin. STRUCTURE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. (Revision B) Customer Indicates A Whistle Noise Is Coming From The Dash During Certain Driving Conditions And HVAC Settings
90039682020-08-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. CONDENSER, Air Conditioning CONDITION 1: If it is determined that the A/C compressor does not engage due to a refrigerant leak at the receiver/drier plug on the A/C condenser, order the receiver/drier plug kit P/N 68447796A$ and follow the repair instructions included on the instruction sheet. CONDITION 2: For stock at the dealership of the below Part Number level or older ONLY, use kit 68447796A$ to change the desiccant BAG and the desiccant bag access PLUG before installing the Cooler on the vehicle. 52014588AD level and older only. 52014609AC level and older only. 52014632AC level and older only. 52014797AG level and older only. 52014948AE level and older only. 52014978AF level and older only.
S19080001092020-05-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Ambient Air Temperature Displayed Temperature Is Inaccurate
S19080001092020-05-18. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Ambient Air Temperature Displayed Temperature Is Inaccurate
90041682019-12-16. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. AC Lines RAM LIGHT DUTY. For AC Refrigerant Low pressure, AC blows warm, Not Cold, not cold enough, there is an investigation for a low charge on the HVAC diagnosis. Please when you detected an issue related with the R134a or 1234YF as a possible leaks, AC blows warm or not cold, prior to replacement or reload refrigerant, contact Juan Carlos Mendez at +52 1 55 1339-0508 (Mexico phone number) or by email: Juan Mendez at juan.mendez1@fcagroup.com Elsy Valencia at elsy.valencia@fcagroup.com Manuel Cruz at manuel.cruz@external.fcagroup.com, to receive more information. In case of suspected loss of refrigerant, A/C system should be thoroughly inspected for evidence of leaks using black light. The system contains fluorescent die which should assist in determining a leak location and mark it. If there is an indication of any leak on the ports/caps, do not remove the ports, consider replacing the complete AC line and return it to FCA for analysis. If there is an indication of any leak on the seal washer, do not remove the washer, consider replacing the complete AC line and return it to FCA for analysis. If no response in 15 minutes, proceed with repair.
549732019-07-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Outlet- Air conditioning & heater
124462018-11-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Inspection and Return: 68261532AA: Evaporator - Air Conditioning

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.