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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
02001212022-09-26. Service bulletin. WHEELS; STEERING; SUSPENSION. Steering Wheel Off-center Due to Incorrect Front Wheel Alignment Specifications This bulletin involves adjusting the front wheel alignment to correct a steering wheel off center condition. This is due to an inaccurate alignment settings from the plant. The customer may describe the steering wheel is off center.
S21080000622022-09-26. Service bulletin. SUSPENSION; ENGINE AND ENGINE COOLING. Rumbling, Rough Engine Vibration 1600 to1800, CEL (Check Engine Lamp) On, Cylinder Misfire DTC?s
90045032022-09-26. 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.
S21080000532022-09-26. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Cluster Message, Service Air Suspension And Start/Stop Does Not Function
S21020000012022-09-26. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Service Air Suspension Message On Cluster With DTC?s C15D9-00 C15A1-00
S2108000062REVA2022-09-15. Service bulletin. SUSPENSION. Rumbling, Rough Engine Vibration 1600 to1800, CEL (Check Engine Lamp) On, Cylinder Misfire DTC?s
S21170000022022-09-15. Service bulletin. SUSPENSION. Vehicle Leans To The Left
08-137-212022-08-22. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION; STEERING. Flash: Electric Power Steering (EPS) Module Updates This bulletin involves updating the EPS module with the latest available software. Customers may experience the following: Vibration felt or noise heard when turning right at low speeds.
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
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
17003212022-05-31. Service bulletin. SUSPENSION. 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.
17002212022-05-31. Service bulletin. EQUIPMENT; 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.
757452022-05-31. Service bulletin. SUSPENSION:FRONT:HUB; SUSPENSION:FRONT:WHEEL BEARING. HUB AND BEARING - WHEEL
90045032022-05-31. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). 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.
02-006-212021-12-13. Service bulletin. SUSPENSION; SUSPENSION:FRONT. Front Shock Oil Weepage This bulletin involves re-torquing the front shock line fitting to stop a possible oil weepage issue. Customers may comment on the following: Oil from the shock fitting is seen on or around the shock fitting area, this may not leak or be seen on the ground where the vehicle is parked. Do not replace the shock assembly for this issue.
03-005-212021-12-13. Service bulletin. SUSPENSION; TRAILER HITCHES. Rear Axle Vibration, Shudder Or Chatter This bulletin involves changing the rear axle lube to possibly address a chatter, shudder or vibration. The customer may describe the following:A chatter, shudder, or vibration from the rear axle during turns. This may happen more as the vehicle ages, especially if the vehicle is used extensively for towing or hauling heavy loads. The cause of the concern may be due to degradation of the rear axle fluid. It is very important to follow the routine maintenance schedules on these vehicles when it comes to changing the rear axlefluid if the vehicle is used primarily for towing or hauling heavy loads. If you experience a vehicle with the above condition, please perform the proper maintenance procedures for the rear axle and replace the fluid first before replacing any hardware components.This service bulletin is only applicable to vehicles that have no history of an axle fluid replacement. If the vehicle usage includes police, taxi, fleet, off-road or frequent trailer towing, regular axle fluid changes are required every3 years or 30,000 miles (whichever comes first) per the Maintenance Schedule in the vehicle Owner's Manual.
02-001-21 REV. A2021-12-13. Service bulletin. WHEELS; STEERING; SUSPENSION. Steering Wheel Off-center Due to Incorrect Front Wheel Alignment Specifications This bulletin involves adjusting the front wheel alignment to correct a steering wheel off center condition. This is due to an inaccurate alignment settings from the plant. The customer may describe the steering wheel is off center.
S21230000342021-06-28. Service bulletin. SUSPENSION. C15A1-00 Unable To Obtain Desired Ride Height Service Air Suspension Message On Cluster
S21230000332021-06-28. Service bulletin. SUSPENSION. Underbody Ticking Noise That Increases With Vehicle Speed
02-001-212021-04-26. Service bulletin. STEERING; WHEELS; SUSPENSION. Steering Wheel Off-center Due to Incorrect Front Wheel Alignment Specifications This bulletin involves adjusting the front wheel alignment to correct a steering wheel off center condition. This is due to an inaccurate alignment settings from the plant. The customer may describe the steering wheel is off center.
90020542021-03-22. Service bulletin. STEERING; SUSPENSION. If replacing the steering linkage or drag link inner tie rod assembly at the pitman arm on a vehicle built before Febuary 14 th, 2008, verify that the pitman arm part number is 68039930AA. The part number is embossed on the pitman arm.~If the pitman arm is not a 68039930AA, it must be replaced with a 68039930AA.~ Issue 2: For 2003 to 2007 MY only. If the OE steering linkage has been replaced with 52122362AA, 52122362AB, 52122362AC, 52122362AD, 52122362AE, or 52122362AF and pitman arm 68039930AA the following service parts are available.
S21080000532021-03-15. Service bulletin. SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION. Cluster Message, Service Air Suspension And Start/Stop Does Not Function
S21020000012021-03-15. Service bulletin. SUSPENSION; EQUIPMENT. Service Air Suspension Message On Cluster With DTC?s C15D9-00 C15A1-00
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
02-002-20 REV. A2020-11-30. Service bulletin. STEERING; SUSPENSION. Steering Wheel Off Center This bulletin involves adjusting the front toe to correct a steering wheel off center condition. This is due to an inaccurate alignment settings from the plant. The customer may describe the steering wheel is off center.

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