# Over\-the\-air update 661.31

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: 11031822
- Published by NHTSA: 2026\-05\-01
- Manufacturer's number: 661.31
- Manufacturer's date: 2026\-04\-28
- Campaign id or software version: 661.31
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: ACP: ACP2 \(ADAS Compute Platform 2\), ACP3\_MCU \(ADAS Compute Platform 3 \- Microprocessor Control Unit\), ACP3\_SOC \(ADAS Compute Platform 3 \- System On A Chip\)

## NHTSA's summary

• Improvements to Super Cruise disengagement alerts. • Improvements to the availability of Super Cruise. • Improvements to driver attention monitoring to help reduce unnecessary OnStar escalation calls. • Improvements to Super Cruise lane merging performance. • Improvements to the responsiveness of rear view camera display. • Improvements to the performance of Brake Assist. • Fixes to help ensure proper Super Cruise lane change functionality. • Improvements to the availability of driver assistance features.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031822-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031822-9999.pdf)

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

## Vehicles listed

- 2025 CADILLAC LYRIQ

JSON: [/v1/bulletins/11031822](/v1/bulletins/11031822)

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