Grok Briefings
Long-press or ask Siri for an AI summary of your vehicle, battery, weather, and recent activity. Send briefings to your Tesla screen.
Tesla companion for iPhone
Your Tesla, smarter every drive.
Terssie brings a clean, Tesla-inspired experience to your iPhone — Grok briefings, automatic trip telemetry, proximity-aware sentry, BLE Phone Key, and messages delivered straight to your car screen.
GrokBriefings
BLEPhone Key
LiveTelemetry
Built for how you actually use your car
From pulling into the driveway to reviewing your last drive, Terssie automates the routines Tesla owners care about — without cluttering the experience.
Trip History & Scores
Automatic drive logging with energy use, efficiency, hard-brake events, regen stats, route labels, and a driving score.
In-Car Delivery
Push Grok summaries, custom messages, and Supercharger navigation directly to your Tesla display.
Phone Key (BLE)
Pair your iPhone as a Tesla Phone Key for local Bluetooth door unlatch when you approach home.
Smart Features
Approach welcome with flash lights and unlock, Supercharger charge-port auto-open, and battery guard with home-range alerts.
Proximity Sentry
Uses parking-sensor proximity to arm sentry only when needed — saving battery while keeping your car protected.
Designed like the Tesla app
Dark surfaces, red accents, glass cards, and a vehicle hero that puts battery and status front and center.
- Live vehicle dashboard with battery ring
- Push notifications for alerts and sentry events
- Diagnostics to verify backend and vehicle connectivity
- Cloud backend at api.terssie.com
Secure by design
Terssie connects through Tesla’s official Fleet API and OAuth. You stay in control of access at all times.
- No Tesla password stored on Terssie servers
- Revoke access anytime from your Tesla account
- Virtual key pairing via terssie.com public key
- BLE commands stay local to your iPhone
Ready to try Terssie?
Install on your iPhone, point the app at your backend, and pair your virtual key. Our support page walks you through every step.
Visit support