About your car harness
A car harness connects comma four to your vehicle. The correct harness depends on your exact model, model year, and factory equipment.
Install your car harness
Use the setup guide for the connection points and installation steps for your vehicle.
Install your comma and harness
Using your car harness
Once installed, check that each connector is fully seated before your first drive.
Car harness troubleshooting
If your car is not recognized, confirm your exact car is supported, then reseat the harness and cable connections.
Still having issues? Contact support.