WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Only bulletins with component: Throttle and cruise control are shown. Show all

Bulletins, newest first
91002472023-12-18. Service bulletin. BACK OVER PREVENTION; VEHICLE SPEED CONTROL. ERG Hydraulic Tensioner Before replacing any FEAD components, please check FEAD belt layout as per the engine sales code. Customer complaint may include a noise from under the hood described as a squeal, screech, squeak, chirp or belt-related noise and/or noisy tensioner/pulley. Please refer to SOL# S2309000007.
S18080001522023-10-02. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; BACK OVER PREVENTION. CEL (Check Engine Lamp) Illuminated, P057B Brake Pedal Position Sensor Performance
S1623000028 Rev.2023-02-13. Service bulletin. VEHICLE SPEED CONTROL; BACK OVER PREVENTION; POWER TRAIN; VISIBILITY; PARKING BRAKE. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S23230000082023-02-13. Service bulletin. VEHICLE SPEED CONTROL; AIR BAGS; BACK OVER PREVENTION. Buzz Squeak Or Rattle Noise From Left Side Driver Door Area.
W952023-01-17. Service bulletin. VEHICLE SPEED CONTROL:SPRINGS. Customer Satisfaction Notification W95 Built to Serve 1" Lift Springs
S22080001772022-12-12. Service bulletin. VEHICLE SPEED CONTROL. Speed Control Operates Intermittently
9004324A2022-10-17. Service bulletin. VEHICLE SPEED CONTROL. SEAL, REAR DOOR GLASS RUN Loose, deformed and torn door seals. If the door seal in question is being ordered for any of these conditions please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the area identifying the door and seal affected as well as the VIN of the vehicle and email pictures to FCA Redacted Content.
90043242022-10-17. Service bulletin. VEHICLE SPEED CONTROL. SEAL, REAR DOOR GLASS RUN Loose, deformed and torn door seals. If the door seal in question is being ordered for any of these conditions please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the area identifying the door and seal affected as well as the VIN of the vehicle and email pictures to FCA Redacted Content
90042622022-10-17. Service bulletin. STRUCTURE:BODY:TAILGATE; VEHICLE SPEED CONTROL; STRUCTURE:BODY:BUMPERS; BACK OVER PREVENTION. BUMPER, Tailgate (U-frame) When swing doors are opened on multi-function tailgate the overslam bumper sticks to the door and pulls out of the U-frame. If bumper is still stuck to the swing door remove and resecure using Mopar Bond-All Gel PN 04467709AA. It is recommended to apply adhesive to the mounting face of all 4 bumpers and replace any missing bumpers as required. Use adhesive sparingly to avoid squeeze out and follow manufacturers recommendations for surface preparation and cure time.
08116212022-09-26. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM; AIR BAGS. Flash: Driver Door Module (DDM) and Passenger Door Module (PDM) Updates This bulletin involves reprogramming the DDM and PDM with the latest available software. Customers may experience one or more of the following:Exterior mirrors do not return to the original position after shifting out of reverse gear. Exterior mirrors continue to tilt downwards even after shifting out of reverse gear.
90043962022-09-26. Service bulletin. VEHICLE SPEED CONTROL. WEATHERSTRIP (Front and Rear Door Triple Seals) Please call FCA Redacted Content prior to performing a repair on the triple seal. If no response in 15 minutes, please proceed with repair. Once the seal is replaced please return the seal to QEC on part retention for further investigation.
S1823000056RevE2022-09-26. Service bulletin. AIR BAGS; SEATS; VEHICLE SPEED CONTROL; EXTERIOR LIGHTING. Tailgate Ajar Indicator Light Is On And Or High Effort Required To Close And Latch The Tailgate
S1808000233RevA2022-09-26. Service bulletin. SEAT BELTS; VEHICLE SPEED CONTROL. The Passive Entry Door Handle Does Not Unlock The Door And B25A3-00 Or B25A4-00 May Be Active
S21140000012022-09-26. Service bulletin. VEHICLE SPEED CONTROL. Humming/Buzzing Noise From Under The Hood With The Key Off.
90043082022-09-26. Service bulletin. SEAT BELTS; VEHICLE SPEED CONTROL; SEATS. COVER, Tonneau If the tonneau retaining strap or hold down latch is broken, there are repair straps and latches available. It is not necessary to replace the full tonneau cover.
S21080000872021-05-24. Service bulletin. VEHICLE SPEED CONTROL; AIR BAGS; ELECTRICAL SYSTEM. CEL (Check Engine Lamp) On, Stop Start Inoperative, DTC B25C9 Driver Door Ajar Switch 2 Stuck Closed
08-047-212021-04-26. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; VEHICLE SPEED CONTROL; VISIBILITY. Door Control Module Window Inoperative This bulletin involves replacing one or both of the door modules. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) have been set: B18BA-12 - Window Control - Circuit Short to Battery B18BA-13 - Window Control - Circuit Open In addition the customer may notice one or more of the following:Driver and/or passenger windows stop working. If window switch is held in the up position for two seconds the obstructionautodown function, may not work. Windows may go up slower than expected.
23-012-212021-04-26. Service bulletin. VEHICLE SPEED CONTROL; AIR BAGS; SEAT BELTS. Driver Side Rambox Opens By Itself Unprompted This bulletin involves removing the driver side Rambox and replacing the Rambox door lock actuator wiring harness with a jumper wiring harness. The customer may comment on one or more of the following:Every time the vehicle is unlocked the driver side Rambox opens. Driver side Rambox opens for no reason.This can happen while the vehicle is sitting over night, or if the vehicle is left unlocked.
18-010-20 REV. A2020-09-28. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL:CRUISE CONTROL. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may comment on one or more of the following:ECO light does not illuminate in the cluster when Multiple Displacement System (MDS) is active(EMEA, LATAM and APAC). 2-3 kph (1.3-1.9 mph) difference between cruise set speed and the actual vehicle speed(EMEA, LATAM and APAC). Bump sensation during a coast down with light acceleration. Abnormal vibration when accelerating lightly during stop and go driving conditions.
90042502020-05-26. Service bulletin. SEATS; EQUIPMENT; VEHICLE SPEED CONTROL. CUPHOLDER, Center Console Please note: If the customer complains of the center console cupholder not latching or stuck closed, please follow the instructions below prior to replacing the part. The storage bin door located on the center console can get foreign material lodged on the underside of the door (which you cannot see). Please remove the cupholder bin per removal instructions, turn it over, remove the (4) M25 screws holding the shield down and look for/remove any foreign object found.
90040122020-05-18. Service bulletin. AIR BAGS; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); VEHICLE SPEED CONTROL; SEATS. Power Latch W/AJAR Prior to ordering this part for a customer stating the Tailgate will not auto release or Ajar light is on when the tailgate is closed, first try adjusting the tailgate strikers to minimize the force required to close. The striker must be centered up/down in the latch opening. You have to balance tailgate flushness and closing effort by moving the strikers fore or aft. Striker position also affects closing effort. In most cases moving the right side striker rearward or the left side forward fixes the issue and maintains flushness within tolerance. On the standard tailgate, the ajar switch is on the right side latch only. Please contact FCA Redacted Content for diagnostic assistance and information to assist in problem resolution. If no response in 15 minutes, proceed with repair.

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