curl --request DELETE \
  --url https://vehicle.api.smartcar.com/v3/connections/{connectionId} \
  --header 'Authorization: Bearer <token>'

{
  "errors": [
    {
      "status": "400",
      "type": "VALIDATION",
      "code": "BAD_REQUEST",
      "title": "Bad Request",
      "detail": "The request could not be understood by the server due to malformed syntax.",
      "links": {
        "about": "https://smartcar.com/docs/errors/api-errors/v3/validation-errors"
      }
    }
  ]
}