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Service bulletin 9004253

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10175617
Published by NHTSA2020-05-26
Manufacturer's number9004253
Manufacturer's date2020-04-15
NHTSA componentTRAILER HITCHES

NHTSA's summary

MODULE, Trailer Tow (Integrated Trailer Brake Module For concern of error message ?Park Assist System Disabled? displayed on the Cluster with DTC U0137 stored or active, please review the communication path between the ITBM and PTS (Parktronics ? Park Assist System). Follow U0137 and Communication Diagnostic Procedure to rule out potential improper connector installation, damage harness / connector, water intrusion, or TPO issues. If the DTC U0137 is stored, please do 5 igniton cycles from bus sleep mode and verify if the DTC becomes active. If the DCT U0137 is active, please create and email a copy of the Scan Report to: FCA Redacted Content We will review the scan report and let you know next step as soon as we can. Please contact FCA Redacted Content for any questions. If no response in 15 minutes, proceed with repair.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Trailer hitch

Trouble codes named

U0137

Vehicles listed
RAM 15002019, 2020
RAM 25002019, 2020
RAM 35002019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
S20230000182023-01-09. Service bulletin. Trailer Detection For Heavy Duty Truck - Blind Spot And Trailer Merge Assist
90044702022-11-07. Service bulletin. CONNECTOR Trailer Tow,WIRING Trailer Tow,CONNECTOR 7 Way,WIRING Rear Bumper If the connector or wiring is physically damaged, burned, melted or corroded, prior to replacing the part, please contact FCA Redacted Content If no response in 15 minutes, proceed with repair. Please send pictures of the failed part to FCA Redacted Content
23016202022-10-17. Service bulletin. 5th Wheel/Gooseneck Trailer Hitch Does Not Fit
90044702022-10-17. Service bulletin. CONNECTOR/WIRING, Trailer Tow If the connector or wiring is physically damaged, burned, melted or corroded, prior to replacing the part, please contact FCA Redacted Content If no response in 15 minutes, proceed with repair. Please send pictures of the failed part to FCA Redacted Content
W182022-09-26. Service bulletin. Customer Satisfaction Notification W18 Front Tow Hooks
S20230000182022-09-26. Service bulletin. Trailer Detection For Heavy Duty Truck - Blind Spot And Trailer Merge Assist
90044702022-09-26. Service bulletin. CONNECTOR/WIRING, Trailer Tow If the connector or wiring is physically damaged, burned, melted or corroded, prior to replacing the part, please contact FCA Redacted Content If no response in 15 minutes, proceed with repair. Please send pictures of the failed part to FCA Redacted Content
S2108000022RevA2022-09-26. Service bulletin. Service Trailer Brake Warning Message Displayed On The Cluster
08061212022-09-26. Service bulletin. Flash: Parktronics (PTS) Enhancements This bulletin involves reprogramming the PTS module with the latest software available. Customers may experience one or more of the following:False front object detection warning when a trailer is connected to the vehicle. Chime sounds when backing away from an object in front of the vehicle. Park assist system latches off when a trailer or snow plow is disconnected during the same key cycle. The system disabled message will still be displayed and the system will be turned off until a new key cycle.
S21080000222022-07-18. Service bulletin. Service Trailer Brake Warning Message Displayed On The Cluster