Key Takeaways
| Feature | B-Pillar Sentry Mode |
| Requirement | HW4 computer |
| Limitation | Not available on HW3 vehicles |
| Part of | Spring 2025 software update |
Introduction
Tesla's Spring 2025 software update introduced a new B-Pillar Sentry Mode that provides side-view recording coverage. However, the feature is exclusive to HW4-equipped vehicles, leaving many HW3 owners unable to use it.
How It Works
The B-Pillar Sentry Mode activates cameras mounted in the B-pillar to record activity alongside the vehicle. This provides coverage that complements the existing front and rear Sentry Mode recording, significantly reducing blind spots.
Why HW4 Only
HW4's more powerful image processor handles the additional camera input without impacting vehicle performance. HW3 lacks the processing headroom to run Sentry Mode at full resolution across all cameras simultaneously.
Impact on HW3 Owners
If you own a pre-2024 Tesla with HW3, this feature will not be available via software update. The good news: existing Sentry Mode continues to function normally. For enhanced protection, consider a steering wheel cover and interior accessories that deter break-ins.
Tesevo Tesla News — Updated June 2025. Based on Tesla release notes and confirmed vehicle compatibility.
