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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

Only bulletins with component: Brakes are shown. Show all

Bulletins, newest first
90043912022-09-26. Service bulletin. PARKING BRAKE; VEHICLE SPEED CONTROL. BEZEL, Hood If the DT TRX Hood Bezel Nameplate "6.2L Supercharged" is missing, coming off, loose or crooked, please replace only the Nameplate "6.2L Supercharged" P/N 68444262AB. It is a serviceable part. Please do not replace the entire DT TRX Hood Bezel Assembly. If you have any questions or need additional information, please contact FCA redacted content. If no response in 15 minutes, proceed with the repair.
S2108000060RevB2022-09-26. Service bulletin. PARKING BRAKE. Service Park Assist Message Or Rear Park Assist Unavailable Message Displaying On The Cluster
S21080000812022-09-26. Service bulletin. PARKING BRAKE. Electronic Parking Brake (EPB) DTC?s Setting For Opposite Side of vehicle. EPB Circuits Swapped
23014222022-09-26. Service bulletin. BACK OVER PREVENTION; PARKING BRAKE. Driver Side Seat incorrect fasteners This bulletin involves inspecting and if necessary replacing the driver?s side seattrack bolts. The customer may describe that the driver's side seat feels loose when adjusting and makes a rattling/clunk noise over bumps.
W822022-09-26. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER. Customer Satisfaction Notification W82 Front Brake Caliper Piston
S21210000152022-09-15. Service bulletin. PARKING BRAKE:DRIVELINE. Driveline Clunk When Stopping Or Upon Take Off Launch Immediately After A Stop
S21210000152022-08-22. Service bulletin. PARKING BRAKE:DRIVELINE. Driveline Clunk When Stopping Or Upon Take Off Launch Immediately After A Stop
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.
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.
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.
23014222022-05-31. Service bulletin. BACK OVER PREVENTION; PARKING BRAKE. Driver Side Seat incorrect fasteners This bulletin involves inspecting and if necessary replacing the driver?s side seattrack bolts. The customer may describe that the driver's side seat feels loose when adjusting and makes a rattling/clunk noise over bumps.
S21180000032021-05-24. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION; SERVICE BRAKES; EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P051B ? Crankcase Pressure Sensor Circuit Performance, and/or P04DB ? Crankcase Ventilation System Disconnected, Set After Powertrain Control Module (PCM) Replacement
08-042-212021-04-26. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE; STRUCTURE. Flash: Body Control Module (BCM) Updates This bulletin involves updating the BCM with the latest available software. Customer may comment that the hill descent button is inoperative.
18-028-212021-04-26. Service bulletin. FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; POWER TRAIN; AIR BAGS. 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, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0524 - Low oil pressure (during start up in cold ambient temps). P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P02E8-00 - Diesel Intake Air Flow Position Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P065A-00 - Generator System Performance. P00AF-00 - Turbocharger Boost Control Module "A" Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P0106-00 - Manifold Absolute Pressure Sensor Performance. Customers may experience the following:Radio may reset during engine idle. Electronic Throttle Control (ETC) lamp turns on. After a long cold soak a stumble/hesitation is felt during the first few light accelerations. Turbo Surge in park or neutral and high Idle. The cruise control and speed limited set speed doesn?t match the speedometer. It could be up to 2.5 kpm (1.5 mph) difference. Other Software enhancements:Speedometer accuracy improvement(s). Cruise control updates. Battery durability improvements in hot ambient temperatures. Improved idle quality during remote start.
S21080000812021-04-26. Service bulletin. PARKING BRAKE. Electronic Parking Brake (EPB) DTC?s Setting For Opposite Side of vehicle. EPB Circuits Swapped
W82 Combo2021-03-15. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER. Customer Satisfaction Notification W82 Front Brake Caliper Piston
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.
S1925000008 Rev.2020-12-28. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES; FUEL SYSTEM, GASOLINE. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.

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