# Over\-the\-air update ACM\-25.3.3 Nautilus

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: Over\-the\-air update
- NHTSA id: 11029610
- Published by NHTSA: 2026\-03\-04
- Manufacturer's number: ACM\-25.3.3 Nautilus
- Manufacturer's date: 2026\-02\-10
- Campaign id or software version: ACM\-25.3.3
- NHTSA component: BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING; FORWARD COLLISION AVOIDANCE: WARNINGS; ELECTRICAL SYSTEM

## NHTSA's summary

"25SA2 Recall remedy \- Audio Control Module update to address intsances where the pedestrian sounder alert sound may not be generated by the vehicle"

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029610-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029610-9999.pdf)

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

## Components

Driver assistance, Electrical system, Backup camera

## Vehicles listed

- 2024 to 2025 LINCOLN NAUTILUS

## Recalls for the same vehicles and component

- [26V415000](/recalls/nhtsa/26V415000.md), 2026-06-30: FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; BACK OVER PREVENTION:WARNINGS:EXTERNAL/PEDESTRIAN ALERT
- [26V165000](/recalls/nhtsa/26V165000.md), 2026-03-18: ELECTRICAL SYSTEM:ADAS; BACK OVER PREVENTION:SOFTWARE
- [25V691000](/recalls/nhtsa/25V691000.md), 2025-10-10: FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; BACK OVER PREVENTION:WARNINGS:EXTERNAL/PEDESTRIAN ALERT

## Other bulletins for the same vehicles and component

- [TSB 25\-2422](/bulletins/11023210.md), 2025-09-19, Other: UNKNOWN OR OTHER; LANE DEPARTURE: BLIND SPOT DETECTION; BACK OVER PREVENTION: WARNINGS; FORWARD COLLISION AVOIDANCE: WARNINGS. This article supersedes TSB 25\-2372 to update the vehicle symptoms.
- [SSM 52125](/bulletins/10247166.md), 2023-12-11, Service bulletin: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. Some 2024 Nautilus vehicles may exhibit diagnostic trouble code \(DTC\) U3000:49 in the camera module\-rear \(CMR\) when a diagnostic self\-test is performed. This may be due to the system triggering a shared variable and then enters a timeout reset process. The history state DTC U3000:49 has no effect on functionality. Replacement or reprogramming of the CMR will not resolve this condition. Engineering is currently working on a solution and a software update is expected in Q2 2024. Continue to monitor OASIS for additional information.

JSON: [/v1/bulletins/11029610](/v1/bulletins/11029610)

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