# Service bulletin S2523000076

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.

- Type: Service bulletin
- NHTSA id: 11022180
- Published by NHTSA: 2025\-08\-27
- Manufacturer's number: S2523000076
- Manufacturer's date: 2025\-08\-22
- NHTSA component: STRUCTURE:BODY

## NHTSA's summary

Active Air Dam Diagnostic Trouble Codes \(DTC\) U0645, C0604.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022180-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022180-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame

## Trouble codes named

C0604, U0645

## Vehicles listed

- 2024 to 2025 RAM 1500

## Other bulletins for the same vehicles and component

- [9100892](/bulletins/11037267.md), 2026-09-10, Service bulletin: STRUCTURE:BODY. Switch \- Tailgate Handle Prior to replacing the Tailgate Handle Switch, please review MasterTech Article \- Tailgate Handle Inoperative.
- [9100886](/bulletins/11036768.md), 2026-09-03, Service bulletin: STRUCTURE:BODY. Sunroof Assy Sunroof glass and/or sunshade cannot open/close \(inoperative\). 1. Please follow the service procedure: 08\-Electrical/8N \- Power Systems/ Power Top, Sunroof/ Diagnosis and Testing. 2. If sunroof motors continue to be inoperative, please contact STAR and reference SET 1599. \*\*\*This should be done before trying to replace the sunroof motors.\*\*\*
- [113855](/bulletins/11036364.md), 2026-08-26, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH AND BEZEL \- FRONT DOOR
- [113854](/bulletins/11036363.md), 2026-08-26, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. SWITCH AND BEZEL \- FRONT DOOR
- [S2608000033](/bulletins/11035198.md), 2026-07-23, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Cluster Message “To Operate Tailgate Shift to Park” Vehicle is In Park
- [9100855 Rev 1](/bulletins/11035067.md), 2026-07-18, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. 2 WAY LUMBAR SWITCH If the Driver Seat Lumbar Support is inoperative, stuck, or not responding as expected, obtain the following information from the customer prior to replacing the lumbar switch: 1.Which lumbar function is not operating properly? \-Inflate \(Extend\) \-Deflate \(Retract\) \-Both directions 2.Is the concern constant or intermittent? 3.If intermittent, how often does it occur? \-Daily \-Weekly \-Randomly 4.Is the lumbar support stuck in the extended or retracted position? \-Extended \-Retracted \-Neither 5.Does the lumbar support respond after pressing the switch multiple times? \-Yes / No 6.Does the concern occur only while driving, only at key\-on, or while the vehicle is parked? 7.Has the concern occurred after the vehicle has been sitting for an extended period \(overnight or several hours\)? \-Yes / No 8.Is the lumbar switch physically sticking or binding in either direction? \-Yes / No 9.Has the lumbar switch, seat assembly, or lumbar support assembly been previously repaired or replaced? \-Yes / No Before replacing the lumbar switch, verify proper power and ground, connector engagement, wiring integrity, and inspect for damaged harnesses, disconnected components, or signs of physical damage/abuse. If no external issues are identified, verify lumbar motor operation and related circuits prior to replacing the lumbar switch.
- [9100853](/bulletins/11035062.md), 2026-07-18, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. SWITCH Power Window 25\-26 DJ and D2. Driver door mirror switches are sticking down. This is being caused by excess trim panel material extending into the switch opening which puts pressure on the switch bezel. Material needs to be removed from the opening. Reference SOL S2523000066.
- [113069](/bulletins/11034910.md), 2026-07-08, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH – HEADLAMP
- [113070](/bulletins/11034909.md), 2026-07-08, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. SWITCH – HEADLAMP
- [08\-195\-26 REV. B](/bulletins/11034894.md), 2026-07-08, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Flash: Door Control Module \(DCM\) Updates Technician may find the following Diagnostic Trouble Code \(DTC\): SYMPTOM: ● B2577\-00 \- Window Not Calibrated / Lost Calibration.\*\* Customers may experience one or more of the following: ● Driver and passenger window 'auto up' function is inoperative. This bulletin involves inspecting and possibly reprogramming the DDM and PDM with the latest available software

JSON: [/v1/bulletins/11022180](/v1/bulletins/11022180)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20S2523000076&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11022180&vehicle=Service%20bulletin%20S2523000076)