2021 Ram 1500 Technical Service Bulletins

1,130 technical service bulletins (TSBs) are on record for the 2021 Ram 1500. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10241035Jun 29, 2023Equipment, Other or unknown. Radio Black Screen, Freezing, Reset, Cutting Out Or Inoperative Intermittently
• 10240962Jun 28, 2023Transmission and drivetrain. Transmission, Valve Body For 2021 DT with concerns related to DTC P0731 (Gear 1 Shift Incorrect ratio) contact FCA Redacted Content. If no response in 15 minutes, proceed with order.
• 10241110Jun 21, 2023Body and structure. Water Leak at Center High Mounted Stop Lamp (CHMSL) Warranty Extension XG1 Customers may experience one or more of the following: ? Water on the headliner. ? Water at the back of the cab. ? A leak from the third brake/cargo light/CHMSL. This bulletin involves replacing the CHMSL assembly.
• 10241046Jun 21, 2023Exterior lighting, Other or unknown. FCA Caribbean Warranty Bulletin ID-23-13 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT)
• 10241045Jun 21, 2023Exterior lighting, Other or unknown. Warranty Bulletin D-23-11 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT)
• 10241026Jun 21, 2023Other or unknown, Body and structure. Power Side Steps Reverse, Stop In Motion, And/Or Do Not Deploy Or Stow
• 10241056Jun 16, 2023Equipment, Electrical system. Customer Satisfaction Notification ZD7 - Radio Software Update
• 10239978May 26, 2023Equipment, Other or unknown, Electrical system. Radio Over The Air Updating from PR39.92 to PR40.12 Software Version ? Radio Wi-Fi Hotspot connection not working. This bulletin provides information regarding the latest Firmware 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 from PR39.92 to PR40.12. NOTE: National launch for this FOTA…
• 10240002May 24, 2023Equipment, Electrical system. Customer Satisfaction Notification ZD7 - Radio Software Update
• 10240035May 21, 2023Engine cooling. MIL lamp-on. Engine noise, rattle. Misfire or rough running.
• 10239959May 19, 2023Body and structure. Door Trim/Audio Related Noise This bulletin involves replacing the door trim panel retainer clips and securingthe door panel. The customer may describe a buzzing heard when playing music at higher volume,speaker rattles and/or crackles. Can occur on any or all doors.
• 10240004May 18, 2023Equipment. SOS, Assistance Calls Not Successful After Radio Replacement or Radio Software Update
• 10239957May 18, 2023Engine cooling. Water Quality When Mixed With Engine Coolant
• 10239859May 16, 2023Back-over prevention (rear camera), Wheels. SENSOR, Wheel Speed When replacing a front wheel speed sensor, hold the convolute towards the sensor head and add a zip tie over the convolute to secure it with the sensor pigtail wire to prevent movement. This will protect the wire from the brake splash shield.
• 10239855May 2, 2023Engine cooling. PSU right intake camshaft Case 1) If you are to flash the PSU (Pentastar Upgrade Engine) PCM due to P0300 code presence, only AB or previous LEVEL PSU right intake camshaft PN 05047913AA or AB (old version) should be replaced. If the engine is equipped with the AC/AD LEVEL PSU right intake camshaft PN 05047913AC or AD (new version), camshaft should NOT be replaced.
• 10239854May 2, 2023Back-over prevention (rear camera). ROCKER ARM ASSY - ROLLER ROCKER Case 1.- Before replacing the intake or exhaust rocker arms due to an abnormal ticking noise, please check that the INTAKE Hydraulic Lash Adjusters are not "collapsed". If a collapsed INTAKE HLA is found, replace all INTAKE HLAs on the suspect cylinder head (no need to replace rocker arms). The noise can occur at low or high RPMs, and at low or high temperatures. There are no…
• 10236877Apr 26, 2023Transmission and drivetrain, Electrical system. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Code (DTC) P2047 ? Reductant Injector 1/1 Circuit, Set.
• 10236969Apr 25, 2023Visibility (wipers, defrost, mirrors). Mirror
• 10236806Apr 25, 2023Visibility (wipers, defrost, mirrors). 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…
• 10236805Apr 25, 2023Electrical system. Parking Assist For any of the following concerns: (PARK SENSOR or Park Assist or Park Sense or PARKING SENSOR) WARNING (PARK SENSOR or Park Assist or Park Sense or PARKING SENSOR) INOP (PARK SENSOR or Park Assist or Park Sense or PARKING SENSOR) SERVICE (PARK SENSOR or Park Assist or Park Sense or PARKING SENSOR) DOES NOT OPERATE PROPERLY Please contact FCA Redacted Content prior to part replacement. If no response…
• 10236873Apr 22, 2023Electrical system. Ambient Air Temperature Missing, Malfunction Indicator Lamp (MIL) Lamp On, Diagnostic Trouble Code (DTC) P0070-15 Ambient Air Temperature Sensor Circuit-Circuit Short to Battery or Open, P0073 Ambient Air Temperature Sensor Circuit High
• 10236871Apr 20, 2023Electrical system. Ambient Temperature Sensor Servicing.
• 10236804Apr 20, 2023Equipment. 3.5 INCH - SPEAKER ASSY P2 Before ordering a speaker part for crackles or rattling noises make sure to take the following steps: 1. Check for electrical harness routing too close to speaker's rear moving parts, improper connection, and/or harness pinch or damage. 2. Ensure no loose components, including trim grilles, fasteners, surrounding IP parts, etc. were found when removing the speaker. 3. Try "bad" speaker at…
• 10236933Apr 15, 2023Equipment, Engine cooling. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
• 10236866Apr 15, 2023Seats. Heated Seat Cushion Element Inoperative
• 10248049Feb 28, 2023Back-over prevention (rear camera). Radio Over The Air Updating to QR40.12 Software Version Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 connection message on phone, when trying to connect to a device. This bulletin provides information regarding the latest Firmware 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…
• 10247967Feb 28, 2023Back-over prevention (rear camera), Exterior lighting. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10247966Feb 28, 2023Engine cooling. No Start, No Crank, Diagnostic Trouble Codes (DTC) P2504 Charging System Output High
• 10234522Feb 28, 2023Electrical system, Equipment. Radio Over The Air Updating to QR40.12 Software Version Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 connection message on phone, when trying to connect to a device. This bulletin provides information regarding the latest Firmware 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…
• 10234440Feb 28, 2023Back-over prevention (rear camera), Exterior lighting. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10234439Feb 28, 2023Electrical system, Engine. No Start, No Crank, Diagnostic Trouble Codes (DTC) P2504 Charging System Output High
• 10248045Feb 25, 2023Exterior lighting. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses (Fig. 1) . This bulletin is to communicate the procedure for head lamp condensation clearing.
• 10234518Feb 25, 2023Exterior lighting. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses (Fig. 1) . This bulletin is to communicate the procedure for head lamp condensation clearing.
• 10247906Feb 22, 2023Engine cooling. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use…
• 10234379Feb 22, 2023Engine cooling. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use…
• 10247953Feb 15, 2023Electrical system. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
• 10234424Feb 15, 2023Electrical system. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
• 10247952Feb 14, 2023Transmission and drivetrain. Enabling A New Power Side Step Module.
• 10247949Feb 14, 2023Body and structure. Power Side Step Does Not Operate Or Operates Intermittently
• 10247905Feb 14, 2023Back-over prevention (rear camera). ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY (with mileage above 30,000) review and follow instructions from STAR Online S1809000007 REV. C available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring…
• 10234423Feb 14, 2023Transmission and drivetrain. Enabling A New Power Side Step Module.
• 10234421Feb 14, 2023Electrical system. Power Side Step Does Not Operate Or Operates Intermittently
• 10234420Feb 14, 2023Electrical system. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
• 10234378Feb 14, 2023Engine cooling. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY (with mileage above 30,000) review and follow instructions from STAR Online S1809000007 REV. C available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring…
• 10247996Feb 3, 2023Electrical system, Back-over prevention (rear camera), Exterior lighting…. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs:P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent.
• 10247995Feb 3, 2023Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.
• 10234469Feb 3, 2023Exterior lighting, Electrical system, Electronic stability control, Back-over…. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs:P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent.
• 10234468Feb 3, 2023Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.
• 10231695Jan 27, 2023Transmission and drivetrain. Front Drive Shaft If replacing DT 5.7L front propeller shaft for concerns of a noise, please contact FCA Redacted Content prior to ordering part to create a FasTrack for return to analyze. If no response in 15 min, proceed with repair.
• 10231792Jan 24, 2023Back-over prevention (rear camera). Radio Over The Air Updating to 40.12 Software Version Mobile Wi-Fi inoperative upon start up. Hotspot gives 9No Internet9 connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware 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…

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