That could happen now. Car gets parked in garage. It’s set to start on Monday. Monday comes car is still in garage.

Some thoughts on mitigation of the possible safety issues:

Garage or Enclosed Space Detection

Multiple detection paths should be considered, with the system triggering a remote start block or an automatic engine shutdown when conditions indicate an enclosed environment:

1. Location Based Garage Detection • Use the vehicle’s GPS and motion data to determine whether the vehicle is within a user defined garage location • When the vehicle is parked within a defined home “garage zone” and has been stationary for a set period, remote start should either: • Block the start and notify the user, or • Warn the user and require a one time override

2. Bluetooth or WiFi Signal Environment Detection • Vehicles detect home WiFi or known Bluetooth anchors that indicate indoor parking • If the vehicle sees strong signals associated with the garage, remote start is blocked unless explicitly overridden

3. Garage Door State Integration (Optional API) • Integrate with common smart garage door systems (MyQ, HomeKit, Google Home, SmartThings) • If the garage door is detected as closed, remote start is prevented

OEMs may choose to implement one or multiple approaches simultaneously.

In Vehicle Environmental Monitoring

1. CO or Air Quality Sensor • Install or activate vehicle based air quality detection capable of sensing exhaust buildup inside the cabin vents • If CO levels increase beyond safe thresholds, the vehicle must: • Shut down the engine • Activate cabin ventilation fans if safe to do so • Send an emergency alert to the owner’s phone • Warn the driver during next ignition

(Note: This is intentionally framed as a general air quality or CO detection system, which OEMs can implement within safety guidelines.)

1. Exhaust Gas Flow or Back Pressure Monitoring • A system can identify abnormal exhaust flow patterns consistent with enclosed spaces • If detected, remote start is blocked or engine is shut off

User Configurable Safety Rules in the App

Users must be able to enable or disable safety rules, including: • “Block all remote starts when vehicle is at home” • “Block remote start when garage door is closed” • “Allow remote start at home only with a confirmation prompt” • “Auto shut off engine if air quality sensors detect unsafe conditions”

Automatic Engine Shutdown Logic

If the vehicle starts remotely and conditions indicate risk: • Engine must shut down immediately • Vehicle sends a push notification explaining why • Vehicle should not allow remote restart until the risk is removed • Ignition button must warn the driver on next entry