# OnStar outage reports and status

Canonical page: https://iszdown.com/now/onstar

Status: Current availability unconfirmed

24-hour window (UTC): 2026-10-18T05:00:00.000Z to 2026-10-19T05:00:00.000Z

Recorded outage reports in this window: 0

Last successful estimated-activity check: No usable observation available

OnStar Corporation is a subsidiary of General Motors that provides subscription-based communications, in-vehicle security, emergency services, hands-free calling, turn-by-turn navigation, and remote diagnostics systems throughout the United States, Canada, China, Mexico, Europe, Brazil, and Argentina. A similar service is known as "Vauxhall/Opel OnStar" in western Europe and "ChevyStar" in Latin American markets. In September 2011 the president of OnStar stated that the service had more than six million customers. On May 9, 2018, Vauxhall Motors announced that Vauxhall OnStar, alongside Opel OnStar services, would cease to operate after December 31, 2020, following Groupe PSA's purchase of Vauxhall Motors and Opel from General Motors. A new aftermarket interior rear-view mirror with a built-in OnStar module, branded as OnStar FMV, became publicly available on July 24, 2011.

## How to interpret this page

Estimated down reports are based on US Google Trends problem-intent searches. Values are relative activity from 0 to 100, not counts of submitted reports. The HTML chart averages samples into ten-minute intervals. Partial samples are excluded and missing samples are not invented.

Recorded outage reports and estimated activity are separate signals. Neither confirms that every user is affected. Missing or stale data does not establish that a service is working.

Methodology: https://iszdown.com/methodology

## Citation

Cite [OnStar on Iszdown](https://iszdown.com/now/onstar), include your access time and the observation time above, and qualify estimated activity as an estimate. Recheck before describing current status. Iszdown is independent of the monitored provider.

## Estimated activity samples

No usable Google Trends samples are available for this service in this window.

## Evidence and recovery

Current availability unconfirmed. More recent independent evidence is needed.

No recent recovery can be established from available evidence.

## Website measurements

Successful sampled checks (24h): Unknown (0/0). Restricted checks: 2. Median response: Unknown ms. P95 response: Unknown ms.

These are sampled public website checks from one US server, not continuous uptime or authenticated app/API tests. Missing data stays unknown.


## Related services

- [OnStar](https://iszdown.com/now/onstar)