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Service bulletins for the 2020 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.

1228 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
S20080001242022-09-26. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. Power Side Steps, Running Boards, Do Not Extend When Exiting Vehicle Or Retract As Expected
S20080001262022-09-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION; UNKNOWN OR OTHER. RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start
S20080001232022-09-26. Service bulletin. UNKNOWN OR OTHER. Radio Resets While Driving Under 1000 RPM
S20180000092022-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTCs) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response.
S1923000042RevC2022-09-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. (Revision C) Service Air Suspension System And Power Side Steps Obstructed message With Chime When Power Side Steps Are Obstructed
S20230000372022-09-26. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. Wind Whistle Noise From Dash A Pillar Area While Driving
S1925000008RevA2022-09-26. Service bulletin. SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). (Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
S20080001142022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; PARKING BRAKE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SXM Is Inoperative, Button Grayed Out Or Stuck In Loading Screen
S20080001132022-09-26. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:IGNITION. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle
90036372022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL. USB PORT, Media Hub For Android Auto and Apple Carplay issues, do not replace this part. Android Auto and Apple Carplay applications may not operate with the vehicle if an aftermarket cable is being used. Verify the functionality of these applications using an OEM Apple Lightning cable or an OEM provided USB cable for Android phones before performing any additional troubleshooting. For questions regarding Android Auto or Apply Carplay functionality, please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90040182022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. LAMP, Cargo (CHMSL) If the CHMSL is being replaced for a water leak, new screws should be used, refer to STAR parts for the latest screw PN Ensure the screws are tightened to 2.8 NM / 24" lbs.
90042892022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. COMPRESSOR, Air Conditioning, Complete Diagnosing the vehicle for poor A/C performance call: FCA Redacted Content before changing the compressor. If no response in 15 minutes, proceed with repair.
08007202022-09-26. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS; EQUIPMENT:ELECTRICAL:INFOTAINMENT; BACK OVER PREVENTION; PARKING BRAKE. UAQ and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to: UAQ radios - 34.2. UCQ - 30.24. 2019 LA and WD with UAQ or UCQ radios and 2020 WD with UCQ radio has been removed from the service bulletin and are now covered under a safety recall. Please refer to published information in DealerCONNECT/Service Library for more details. Customers may experience one or more of the following:Speaker crackling noise on non amplified vehicles (UAQ Only). Active call not transferred to vehicle Bluetooth®(UAQ Only). Voice Recognition (VR) not understanding commands to switch sources (UAQ Only). Bluetooth phonebook not available (UAQ Only). "Setting" button removed after ignition cycle (UAQ Only). Coolant temperature value incorrect (UAQ Only). Blank display screen at start up.
18011202022-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience the following: A hesitation or rough feeling during engine-starting. Extended or longer than usual engine crank time. This conditions usually happens after a cold engine start and the vehicle is turnedoff and turned on within 3-5 minutes this will result in an extended or longer crank than usual before the vehicle restarts.
S20080001102022-09-26. Service bulletin. TIRES. Oversized Tire Calibration For Mopar Custom Calibration for Dodge RAM, MVP Update Required, MVP Hotline
S20080001052022-09-26. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. Remote Start Inoperative
S20080000942022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL. Uconnect Market Place APP Fatal Error Message
S20080000992022-09-26. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. Vehicle Cranks And Does Not Start, Multiple Low Voltage DTC?s Setting
S20080000102022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
S20250000062022-09-26. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
S20080000952022-09-26. Service bulletin. ELECTRICAL SYSTEM. Service Shifter Is Displayed In the EVIC
90042802022-09-26. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; VISIBILITY. GLASS, Mirror Replacement Prior to replacing this part for an outside mirror glass that is missing or not present please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90042072022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. AIR DAM, Front, With Actuator (Active Air Dam) Prior to replacing this part, please call FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90037042022-09-26. Service bulletin. SEATS; FUEL SYSTEM, GASOLINE; AIR BAGS; POWER TRAIN; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING. Transmission Oil Pan, Heater (TMU), Tube or O-ring Applies to vehicles equipped with 8 speed transmissions only; if you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. Please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. Please review the available quick connect and transfer tube parts, as replacement of the TMU may not be required. If a TOC line connection is found to be the source, the quick connect may need replacement. If the leak source is coming from the connection of the TMU to the transmission, the transfer tube may need replacement. When parts are returned to the QEC the retaining clips (snap ring) for the quick disconnect fittings are missing. (This leaves a question as to whether the clips were missing from the assembly plant, or the technician removed them in order to make line removal easier.) Please return the clips with the transmission heater and note if they were not there to begin with. For any questions regarding transmission heater, contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
08119212022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. UAX, UCX, UAV and UCV Radio Over the Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated to:DT with UAX and UCX - 34.31. All other vehicles and radio combinations - 34.2. The national launch for the FOTA will begin July 21, 2021. Customers may experience one or more of the following: SOS, Automatic SOS (ASOS) , assist calls not showing correct location(DT Vehicles with UAX and UCX Only). GPS inaccuracies(DT Vehicles with UAX or UCX Only). Uconnect radio apps are inoperable(DT Vehicles with UAX or UCX Only). SXM® button are greyed out(DT Vehicles with UAX or UCX Only). Intermittently, SXM loading screen is stuck(DT Vehicles with UAX or UCX Only). Uconnect App inoperative(DT Vehicles Only). Voice Recognition (VR) inoperative(DT Vehicles Only). Radio resets(DT Vehicles Only). Radio locks up, freezes or resets. Bluetooth device is slow to pair, or does not pair. GPS unable to load and find locations. Loss of saved radio presets. Display screen is back with no backlighting. No audio output coming from the radio. Cannot control audio volume. Rear view camera display will not turn off.

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