# Service bulletin 25\-NA\-026

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: 11014569
- Published by NHTSA: 2025\-02\-27
- Manufacturer's number: 25\-NA\-026
- Manufacturer's date: 2025\-02\-11
- NHTSA component: ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

## NHTSA's summary

This service bulletin provides repair information to correct a customer concern of Service Drivers Assist Message Illuminated, Super Cruise Inoperable, and DTC U1624 Setting.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014569-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014569-9999.pdf)

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

## Components

Driver assistance, Electrical system, Adaptive cruise control

## Trouble codes named

U1624

## Vehicles listed

- 2025 CADILLAC CT4

## Other bulletins for the same vehicles and component

- [PIC6582](/bulletins/11011462.md), 2024-12-05, Service bulletin: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This Preliminary information communicates that a Service Drivers Assist message with Super Cruise inop and a U1624 May be found and that Engineering is working on a resolution.

JSON: [/v1/bulletins/11014569](/v1/bulletins/11014569)

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