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Service bulletins for the 2021 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.

1129 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
S21210000152022-08-22. Service bulletin. PARKING BRAKE:DRIVELINE. Driveline Clunk When Stopping Or Upon Take Off Launch Immediately After A Stop
S21090000102022-08-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION: OIL COOLER. 3.0L Ecodiesel Engine Oil Information
S21080001992022-08-22. Service bulletin. ENGINE AND ENGINE COOLING. Check Engine Light (CEL), Start Stop Disabled, Vehicle Goes Into Limp In Mode
S21080001982022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL. Media Device Connection Guidelines For Bluetooth, Apple CarPlay, Android Auto Or USB To The Radio Head Unit
S21080001902022-08-22. Service bulletin. ENGINE AND ENGINE COOLING. Temperature Gauge Running Hot, Engine Cooling Warning Lamp On, Cluster Chime For The Condition, Radiator Cooling Fan Does Not Turn On
S16230000282022-08-22. Service bulletin. VISIBILITY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot
S21170000022022-08-22. Service bulletin. STRUCTURE. Vehicle Leans To The Left
S21080001862022-08-22. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Power Windows Do Not Operate, Stop Start Inoperative
S21180000132022-08-22. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Customer complaint may include the transmission going into neutral on its own. A Mil-on/check engine lamp-on condition may also be present. Upon further investigation, one or more of the following DTCs may be set in the powertrain control module (PCM): P219A-Bank 1 Air-Fuel Ratio Imbalance P219B-Bank 2 Air-Fuel Ratio Imbalance P2173-High Airflow/Vacuum Leak Detected (Slow Accumulation) P2172-High Airflow/Vacuum Leak Detected (Instantaneous Accumulation) P0172-Fuel System 1/1 Rich P0175-Fuel System 2/1 Rich (Incorrect "July 2021" on document)
90044102022-08-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. BEZEL, Instrument Panel For concern of instrument panel heads up display (HUD) bezel loose/warped Part number 6WH55*, prior to replacing the part please take a picture demonstrating the condition of the part. Contact FCA Redacted Content to send picture of part condition or Call FCA Redacted Content prior to replacing the bezel. If no response in 15 minutes, proceed with repair. Please ensure that the part doesn't need to be pressed back in, or something is interfering with part fitting into the top pad of the IP prior to replacement.
90043822022-08-22. Service bulletin. SUSPENSION; SEATS; BACK OVER PREVENTION. BUSHING, Tailgate Pivot For vehicles built after Dec 1 2020 and the tailgate is making a noise when opening or closing or if the bushing is being replaced for any reason please read this note PN 68437489AB is for multifunction tail gate only and PN 68437489AA is needed for standard tail gate only. Also there is a shim PN 68547105AA that can be added in the standard tailgate gate right side pivot cup to address side to side movement. For any other concerns call FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the inside of the pivot cup after plastic bushing removal and pictures of the pivot post on the box side hinge. Email pictures to FCA Redacted Content
90040742022-08-22. Service bulletin. VISIBILITY. MIRROR, Outside Rearview - w/ Memory If the outside rearview mirror is being replaced for concern of "Mirrors tilt in reverse but do not return to the pre-set position after shifting out of reverse gear or continue to tilt downwards even after shifting out of reverse gear". Do not replace the mirror as it will not correct the issue. A software update has been released. Please review TSB 08-116-21 for the repair procedure which would involve reprogramming the DDM and PDM with the latest available software.
08-014-212022-07-18. Service bulletin. ENGINE AND ENGINE COOLING; AIR BAGS; EXTERIOR LIGHTING. Motor Generator Unit (MGU) Connector Not Fully Seated This bulletin involves replacing the MGU. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs). U0594 - Implausible Data Received From HCP. P1B03-00 - Resolver Signal / MCPA Rationality. P0A3F-00 - Drive Motor A Position Sensor 1 Circuit. P0607-00 - ECU Internal Performance. P1C64-00 - Hybrid Perf - Engine Speed Below Target During Autostart. P0A92-00 - Hybrid Generator Performance. Customers may also experience the following: The vehicle has 15-40 minutes of driving time before a vehicle stall.The vehicle will be unable to re-start. The vehicle will lose charging of the main 12V battery. A check engine light and/or a low battery light illuminates.
05-001-212022-07-18. Service bulletin. SERVICE BRAKES. Front Brake (Chirp/Squeak) Noise This bulletin involves applying grease to the anti-rattle clips on both sides ofthe front brakes. The customer may comment on the following: A chirp and/or squeak from front of vehicle over bumps when the brakesare not applied.
S2023000005 Rev.2022-07-18. Service bulletin. STRUCTURE:BODY; VISIBILITY:REAR WINDOW WIPER/WASHER:LINKAGES. Water Leak On Sliding Rear Window Or Back Of Cab
S2108000025 Rev.2022-07-18. Service bulletin. BACK OVER PREVENTION. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S21080000252022-07-18. Service bulletin. BACK OVER PREVENTION. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S1923000042 Rev.2022-07-18. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); POWER TRAIN. Service Air Suspension System And Power Side Steps Obstructed message With Chime When Power Side Steps Are Obstructed
S21250000012022-07-18. Service bulletin. FUEL SYSTEM, GASOLINE; SERVICE BRAKES; ENGINE AND ENGINE COOLING. High Pressure (HP) Exhaust Gas Recirculation (EGR) Cooler, Perceived Internal Coolant Leak.
S2023000019 Rev.2022-07-18. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. Noise From Headliner Roof Area
S21090000012022-07-18. Service bulletin. SERVICE BRAKES. Customer may complain of a MIL lamp on. Upon further investigation there could be a fault code in the PCM for P1524 ? Oil Pressure Out of Range ? Camshaft Advance/Retard Disabled.
S21190000012022-07-18. Service bulletin. STEERING. Click Pop Creak Noise While Turning Steering Wheel
S2108000006 Rev.2022-07-18. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. Cluster Speedometer Digital Value Appears Slightly Discolored
S2108000003 Rev.2022-07-18. Service bulletin. WHEELS; LANE DEPARTURE; STEERING; TRAILER HITCHES; VISIBILITY. Cluster Displays Blind Spot Alert Off Incompatible Trailer Message, Left Steering Wheel Switches Do Not Allow Update Or Change
S21080000112022-07-18. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery Light Illuminates, 12V Battery Not Charging, No Start

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