Every Tesla You Own, Watched From One Account

Several Teslas, One Owner, One App

Maybe your household has two Teslas and three drivers. Maybe you rent yours out on a car-sharing platform. Maybe you keep a couple of cars that family, friends, or renters borrow. In every case they’re your Teslas, and you want to know how they’re driven when it isn’t you at the wheel.

Sentry Driver runs on Tesla’s official Fleet API across every vehicle on your account, with nothing for a driver to install and nothing to physically maintain. It’s an owner-only app: you connect your own cars, and the data goes to you.

Multi-Vehicle Support Built In

Subscription tiers support 1, 2, 3, or 5 vehicles. All monitored from a single account with:

• Per-vehicle alerts - Know which car triggered what event
• Trip history - Distance, duration, max speed, and hard brake counts for monitored drives
• Event logs - Timestamped records with recorded locations
• Per-vehicle rules - Use the same speed limits and geofences everywhere, or tune them per car

Whether it’s a second family car, a borrowed Tesla, or one you rent out, the same account watches all of them. If a car you drive belongs to your employer, see the company car page.

5 Alert Types for Cars You Don’t Drive Yourself

Speed Limit Alerts

Set a number. 5 over the limit? 10 over? Whatever you decide, violations are logged with speed, location, and timestamp - useful if you ever need to work out what happened to a car you’d lent or rented out.

Geofence Zones

Create circular boundaries for the city, a rental radius, or places a car shouldn’t go. Mark as “allowed” (alert when vehicles leave) or “restricted” (alert when vehicles enter). Get alerted when a car is where it shouldn’t be.

Accident Detection with 3 Sensitivity Levels

• Low (2g): Only significant impacts trigger alerts
• Medium (4g): Moderate collisions detected
• High (8g): Minor incidents caught, but more false positives

Choose based on your risk tolerance. Every detection includes recorded location for timely response.

Curfew Monitoring

Define allowed driving hours with start/end times and specific days of the week. Get alerted when a car is driven outside them. Timezone-aware configuration.

Driving Behavior Tracking

Hard braking and sudden acceleration events are logged per drive with three sensitivity levels. Use the data for a conversation, not a confrontation. Patterns become visible over time.

What You Get for Every Trip

Each monitored drive records:

• Start and end timestamps
• Total distance and duration
• Maximum speed reached
• Hard braking event count
• Acceleration event count
• Location, speed, and heading as telemetry is received

Plus an event log with timestamps and locations for rule violations.

Records That Protect Your Cars

When something happens to a car you’ve handed over, having data helps:

• Accident claims: Provide speed and location context for claims discussions
• Rental or loan disputes: Verify when the car was driven, where it went, and how fast
• Unauthorised use: Know if a car was taken somewhere, or at a time, it shouldn’t have been
• Insurance documentation: Provide trip records when requested

Less guesswork, more timestamped context.

Zero Hardware, Zero Driver Friction

Sentry Driver works through Tesla’s official Fleet API. That means:

• No OBD dongles to install
• No driver app to download
• No training required
• No driver-side app or dongle to manage
• Works with supported Model S, 3, X, Y, and Cybertruck vehicles that meet Tesla Fleet API and telemetry requirements

Tell Your Drivers

Let anyone who drives your cars know they’re monitored - family, friends, renters. Our terms require it, and it’s simply fairer. Sentry Driver records the vehicle, not the person: it doesn’t identify who is driving and doesn’t touch their phone.

Connect your vehicles in minutes. Monitoring can start as soon as setup is complete. See pricing and start a free trial.

Frequently Asked Questions

How many vehicles can I monitor?

Subscription tiers support 1, 2, 3, or 5 vehicles per account. Choose the tier that matches how many Teslas you own.

Do drivers need to install anything?

No. Drivers don’t install an app, pair a phone, or change how they operate the vehicle. Monitoring runs on your account, not on their phone.

Can I support a disputed incident with speed records?

Yes. Monitored drives record the maximum speed reached, and the event log captures speeds at specific times and locations. This data can support or refute claims about how the car was being driven.

Can I use this for a business fleet or to monitor employees?

Sentry Driver is sold to individuals for their own vehicles; we don’t offer business contracts or fleet-management features. If you connect a vehicle that belongs to an employer, you are responsible for complying with the laws that apply, including telling drivers the car is monitored.

What if I only want alerts during certain hours?

Use the curfew feature - set the hours you care about, or configure geofence alerts to activate only during specific time windows.

Does this use Tesla’s official Fleet API?

Yes. Sentry Driver connects through the same official Fleet API and telemetry that Tesla provides to third-party apps, with the authorisation you grant from your own Tesla account.