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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.

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Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
1126512026-06-18. Service bulletin. SUSPENSION. SHOCK ABSORBER - SUSPENSION
1126522026-06-18. Service bulletin. SUSPENSION. SHOCK ABSORBER - SUSPENSION
S25020000012025-12-11. Service bulletin. SUSPENSION. Lower Ball Joint / Lower Control Arm Servicing Updates.
02-002-25 REV. A2025-09-17. Service bulletin. SUSPENSION. Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts.
1063522025-09-10. Service bulletin. SUSPENSION. SHOCK ABSORBER – SUSPENSION & SHOCKS - REAR
02-002-252025-05-30. Service bulletin. SUSPENSION. "Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
02-001-252025-03-03. Service bulletin. SUSPENSION. "Front Lower Control Arm Stabilizer Link Noise Customers may experience the following: ● Rattle or clunk noise coming from the front end of the vehicle when driving over bumps, performing turns or during normal operation. This bulletin involves road testing and possibly tightening the stabilizer link attachment to lower control arm nut. "
9100460 REV12025-01-21. Service bulletin. SUSPENSION. ARM Lower Control WHAT: Clunking noise from Front Stabar link to Front Lower Control Arm (FLCA). WHY: The joint is coming loose due to loss of clamp load when there is embedment on FLCA mating surface to the stabar link ball stud. We are currently updating the stabar link design and new design will be implemented in March 2025. HOW: If this Front stabar link to FLCA joint torque is under the residual torque of 70Nm, please retorque the joint to this spec of 110 (Min 70-Max 138). Otherwise proceed with regular diagnosis.
91004602024-12-10. Service bulletin. SUSPENSION. ARM Lower Control WHAT: Clunking noise from Front Stabar link to Front Lower Control Arm (FLCA). WHY: The joint is coming loose due to loss of clamp load when there is severe embedment on FLCA mating surface to the stabar link ball stud. We are currently updating the stabar link design and new design will be implemented in March 2025. HOW: If this Front stabar link to FLCA joint torque is under the residual torque of 70Nm, please retorque the joint to this spec of 110 (Min 70-Max 138). Otherwise proceed with regular diagnosis.
1017892024-12-03. Service bulletin. SUSPENSION. BUSHING - STABILIZER BAR
S2108000071 REV.E2024-08-12. Service bulletin. SUSPENSION. Message Displayed on the Cluster, "Service Active Dampening Suspension System"
S24020000012024-07-02. Service bulletin. SUSPENSION. Clunking Noise From Front Stabilizer Bar / Sway Bar Link.
91002292023-10-30. Service bulletin. SUSPENSION. LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
S21230000342023-01-17. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). C15A1-00 Unable To Obtain Desired Ride Height Service Air Suspension Message On Cluster
90043822023-01-17. Service bulletin. SUSPENSION; STRUCTURE:BODY:TAILGATE. BUSHING, Tailgate Pivot For vehilces built after Dec 1 2020 if the tailgate is making a noise when opening or closing or if the bushing is being replaced for any reason please 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. Mail pictures to FCA Redacted Content.
S22080001972023-01-17. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. Cluster Message ?Service Air Suspension?
90045032023-01-09. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ELECTRICAL SYSTEM; SUSPENSION. SWITCH, Instrument Panel (Air Suspension Switch) Suspension Switch INOP, after diagnosis do not swap the switch. Engineering needs to review the vehicle before any fix. Please contact FCA Redacted Content with the VIN number and contact name/phone if you are located in Detroit Metro area only. If no response in 15 minutes, proceed with repair.
S19020000082022-11-07. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE; SUSPENSION; ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Air Suspension Compressor Module Assembly Replacement.
S21230000342022-10-17. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. C15A1-00 Unable To Obtain Desired Ride Height Service Air Suspension Message On Cluster
S21230000342022-10-17. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). C15A1-00 Unable To Obtain Desired Ride Height Service Air Suspension Message On Cluster
90043822022-10-17. Service bulletin. BACK OVER PREVENTION; SEATS; SUSPENSION. BUSHING, Tailgate Pivot For vehilces built after Dec 1 2020 if the tailgate is making a noise when opening or closing or if the bushing is being replaced for any reason please 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. Mail pictures to FCA Redacted Content.
90045032022-10-17. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ELECTRICAL SYSTEM. SWITCH, Instrument Panel (Air Suspension Switch) Suspension Switch INOP, after diagnosis do not swap the switch. Engineering needs to review the vehicle before any fix. Please contact FCA Redacted Content with the VIN number and contact name/phone if you are located in Detroit Metro area only. If no response in 15 minutes, proceed with repair.
S22020000062022-09-26. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Air Suspension Compressor Quick Connect Adaptor Fitting Service.
17003212022-09-26. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER. Noise in Left Rear Shock Area Over Bumps This bulletin involves replacing the left rear shock absorber. The customer may describe the following:Clunk in left rear shock/suspension when driving over bumps.
17002212022-09-26. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER. Noise in Right Rear Shock Area Over Bumps This bulletin involves replacing the right rear shock absorber. The customer may describe the following:Clunk in right rear shock/suspension when driving over bumps.

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