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Service bulletins for the 2020 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.

1228 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
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
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.
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
W95 Combo2021-04-26. Service bulletin. SUSPENSION. Customer Satisfaction Notification W95 Built to Serve 1" Lift Springs
S1723000007 Rev.2021-04-26. Service bulletin. SUSPENSION. Air Suspension Inoperative And Or Compressor Freeze Up Or Sticking In Cold Weather.
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.
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.
02-002-202020-11-30. Service bulletin. SUSPENSION; STEERING. 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.
03-002-202020-11-30. Service bulletin. SUSPENSION:MULTIPLE AXLE; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION:LINES AND FITTINGS. Front Axle Noise While in 4WD Mode This bulletin involves replacing the front axle assembly. The customer may experience a growling noise from the front axle which is more noticeable at lower speeds in 4WD mode.
08-078-202020-10-26. Service bulletin. SUSPENSION. Flash: Air Suspension Control Module (ASCM) Updates This bulletin involves reprogramming the ASCM with the latest available software. Customers or technicians may experience a Malfunction Indicator Lamp (MIL) illumination after a battery disconnect. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set along with a notification in the instrument panel cluster ?Service Air Suspension? after a battery disconnected and reconnect event.U0422-00 - Implausible Data Received From Body Control Module.
S1923000042 Rev.2020-09-28. Service bulletin. EQUIPMENT; SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY. (Revision C) Service Air Suspension System And Power Side Steps Obstructed message With Chime When Power Side Steps Are Obstructed
S17230000072020-06-22. Service bulletin. SUSPENSION. Air Suspension Inoperative And Or Compressor Freeze Up Or Sticking In Cold Weather.
90042592020-06-22. Service bulletin. SUSPENSION. Two-inch Lift Kit (Rear Shock) When installing the Mopar 2 Inch Lift Kit do not compress the rear shocks fully, as the rear shocks can be over-compressed prior to being installed; leading to damage of the shaft seal. Please go to STAR parts and download the latest I-sheet K6862538AC for further details. Lift Kit 77072424AC or later will have the updated I-sheet. NOTE- shocks with this type of damage are not considered warranty.
02-001-202020-05-26. Service bulletin. SUSPENSION. Vehicle Pulls or Leads This bulletin involves properly correcting a lead/pull condition due to inaccuratealignment settings from the plant. The customer may describe the vehicle pulls or leads either left or right.

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