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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
S20080001822021-03-01. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Driver Or Passenger Power Windows Do Not Go Up Or Down
90043372021-03-01. Service bulletin. STRUCTURE:BODY:DOOR:HANDLE:EXTERIOR; ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; BACK OVER PREVENTION; STRUCTURE:BODY:TAILGATE. HANDLE, Tailgate For issues related to tailgate handle camera do not replace tailgate handle, the camera is serviceable and can be ordered through MOPAR separately as follows: 2019 - 68144068A$ 2020 - 68414414A$, 68144068A$ 2021 - 04672850A$
90043342021-03-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Power Window Regulator or Motor Owners may complain that the Driver and or Passenger Windows are inoperative. Technician may find DTC?s B18BA-12 - Window Control - Circuit Short to Battery, B18BA-13 - Window Control - Circuit Open (stored or active). Replace the DDM or PDM per detailed repair information in Service Library or reference Star Online Publlication S2008000182. Replacing regulators or motors will not correct this issue.
08-014-212021-02-16. Service bulletin. AIR BAGS; EXTERIOR LIGHTING; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING. 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.
05-001-212021-02-16. Service bulletin. AIR BAGS. 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.2021-02-16. Service bulletin. VISIBILITY. Water Leak On Sliding Rear Window Or Back Of Cab
S2108000025 Rev.2021-02-16. Service bulletin. ELECTRICAL SYSTEM. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S21080000252021-02-16. Service bulletin. ELECTRICAL SYSTEM. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S1923000042 Rev.2021-02-16. Service bulletin. SUSPENSION. Service Air Suspension System And Power Side Steps Obstructed message With Chime When Power Side Steps Are Obstructed
S21250000012021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. High Pressure (HP) Exhaust Gas Recirculation (EGR) Cooler, Perceived Internal Coolant Leak.
S2023000019 Rev.2021-02-16. Service bulletin. STRUCTURE. Noise From Headliner Roof Area
S21090000012021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. 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.
S21190000012021-02-16. Service bulletin. STEERING. Click Pop Creak Noise While Turning Steering Wheel
S2108000006 Rev.2021-02-16. Service bulletin. ELECTRICAL SYSTEM. Cluster Speedometer Digital Value Appears Slightly Discolored
S2108000003 Rev.2021-02-16. Service bulletin. ELECTRICAL SYSTEM; STEERING. Cluster Displays Blind Spot Alert Off Incompatible Trailer Message, Left Steering Wheel Switches Do Not Allow Update Or Change
S21080000112021-02-16. Service bulletin. ELECTRICAL SYSTEM. Battery Light Illuminates, 12V Battery Not Charging, No Start
S21080000062021-02-16. Service bulletin. EQUIPMENT. Cluster Speedometer Digital Value Appears Slightly Discolored
S21080000032021-02-16. Service bulletin. LANE DEPARTURE; STEERING. Cluster Displays Blind Spot Alert Off Incompatible Trailer Message, Left Steering Wheel Switches Do Not Allow Update Or Change
S21230000012021-02-16. Service bulletin. WHEELS. Rear Wheel Spat Has A Gap Or Appears Loose
S20080001932021-02-16. Service bulletin. SEAT BELTS. Air Bag Warning Lamp Illuminates, DTC B007F-2B Passenger Seat Belt Pretensioner Circuit
90043462021-02-16. Service bulletin. STRUCTURE. MOLDING, Day light opening If the complaint for this part is coming loose or pulling away from the door please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the part condition and an overall picture of the affected door/area and send them to FCA Redacted Content.
90043452021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. COOLER, EGR If you are replacing the high pressure EGR cooler (p/n 68490113A$) for a suspected internal coolant leak that was detected by wetness in the EGR pipe or valve, please perform proper cooling system pressure test first to verify the leak. Refer to all published service information regarding Cooling Diagnosis and Testing (LEAK TESTING) before proceeding.
90043432021-02-16. Service bulletin. SERVICE BRAKES, HYDRAULIC. VALVE, HIGH PRESSURE EGR If you are replacing the high pressure EGR valve (68490212A$) due to DTC P0407 or P0408 please refer to all published service information regarding proper diagnosis before proceeding. These DTCs are for the low pressure EGR system.
90043422021-02-16. Service bulletin. VISIBILITY. WINDSHIELD Windshield cracked or blemish. When customer comes in for a cracked windshield, please note the location of crack and take pictures before repair. Please send pictures to FCA Redacted Content or load to the warranty claims system.
90040392021-02-16. Service bulletin. WHEELS. Spat, Wheel Well Splash Shield If replacing this for a warrantable concern, prior to removal of the Spat, please contact FCA Redacted Content by phone at FCA Redacted Content. If no response within 15 minutes. Please take pictures and highlight the area concern; email pictures to FCA Redacted Content.

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