Security & safety
Smartcar
wbyoung/smartcar · vv0.5.1
HACSCloud polling
Smartcar Integration for Home Assistant
In Apple Home through HomeKit Bridge
What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.
| Entity | Shows up as | Note |
|---|---|---|
switch | Switch or outlet | |
lock | Lock | Needs its own HomeKit Bridge in accessory mode |
binary_sensor | Sensor (motion, contact, leak, smoke…) | |
sensor | Sensor (temperature, humidity, air quality…) | |
device_tracker | Presence (as an occupancy sensor) |
How it connects
Cloud polling
Goes through the maker’s cloud, asking it for updates every so often. Needs the internet and an account.
Details
| Installs (analytics) | 124 (0.02%) |
|---|---|
| GitHub stars | 49 |
| Latest version | v0.5.1 (2026-09-25) |
| Set up in the UI | Yes |
| Maintainers | @tube0013, @wbyoung |
| License | Apache-2.0 |
Limitations from the README
- Vehicle Compatibility: Not all features are supported by all vehicle makes/models/years via the Smartcar API. Entities for unsupported features (e.g., fuel status for EVs or lock control for VW ID.4 2023+) may or may still be created, but not function. Check the Smartcar compatibility details for your specific vehicle.
- Fuel Data Availability: The sensor.fuel (amount in litres) is frequently null for many vehicles. However, sensor.fuelpercent and sensor.fuelrange` are typically more reliable and provide comprehensive fuel monitoring even when the amount is unavailable.
- API Latency: There can be significant delays (seconds to minutes) between sending a command (e.g., start charging) and the vehicle executing/reporting the change back through the API. The state in Home Assistant will update after the next successful data poll.
- Rate Limits: Be mindful of the 500 calls/vehicle/month limit on the free tier.
- Single User: Smartcar applications must be configured with only a single user connected to vehicles.
- FAQ: In case ou haven't found the FAQ yet, it is a great resource for troubleshooting and discovering if you're running up against an issue with this integration vs. a limitation in Smartcar's platform.
In ReReHome
Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.
Bridges get their own settings page listing the accessories behind them.
Sources
- Documentation: https://github.com/wbyoung/smartcar
- Source code: https://github.com/wbyoung/smartcar
- Issues: https://github.com/wbyoung/smartcar/issues
- HACS: https://hacs.xyz
