ScreenToCarScreenToCar Support
ScreenToCar shows your phone screen (such as navigation) in your car's browser, on iPhone and Android. It is an independent app, not affiliated with Tesla.
- On your iPhone, go to Settings › Personal Hotspot, turn on "Allow Others to Join," and choose this iPhone in the car's Wi‑Fi settings.
- In ScreenToCar, tap "Start Sharing" › "Start Broadcast."
- Before you drive, while parked, open the full address shown in the app (for example,
http://172.20.10.1/?k=ab3xyz) in the car's browser.
- In your phone's settings, turn on Mobile Hotspot (tethering) and choose this phone in the car's Wi‑Fi settings.
- In ScreenToCar, tap "Start Sharing," then tap "Start now" in the system dialog.
- Before you drive, while parked, open the full address shown in the app (for example,
http://192.168.43.1:8080/?k=ab3xyz) in the car's browser. The numbers may differ on your phone.
What is the ?k= at the end of the address?
It's a car access code stored on your phone. It keeps other devices on the same hotspot or Wi‑Fi from viewing your screen just by knowing the address. Enter the address exactly as shown in the app, including the code. The code stays the same until you reset it in Settings, so you can bookmark the address in the car's browser and open it directly next time. If someone else has seen the code, reset it in Settings. If the car shows "The address has changed," the code was reset — open the new address shown on your phone and update your bookmark.
Connection troubleshooting, sound and Shortcuts
Pricing
- Free: 10 minutes per sharing session, up to 720p (Low heat and Standard)
- ScreenToCar Pro: no time limit and Sharp 1080p — yearly subscription or one-time lifetime purchase
Safety
While driving, show only navigation. While sharing, if driving is detected (using location access), the car display is limited to 3 frames per second. Map guidance stays visible, but this is not suitable for watching video. Full quality returns after you've been parked for about a minute. Driving detection relies on GPS speed and isn't always accurate. Watching video while driving is illegal in many places, so watch video only while parked.