# Over\-the\-air update 661.20

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: 11031774
- Published by NHTSA: 2026\-04\-30
- Manufacturer's number: 661.20
- Manufacturer's date: 2026\-04\-21
- Campaign id or software version: 661.20
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: ACP3: 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031774-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031774-9999.pdf)

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

## Vehicles listed

- 2026 CADILLAC VISTIQ

JSON: [/v1/bulletins/11031774](/v1/bulletins/11031774)

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