Abstract: A method for protecting occupants in the passenger compartment of a parked motor vehicle from exposure to dangerously elevated temperatures and CO2 concentration levels is based on control of vehicle systems by a central microprocessor in communication with CO2 and temperature sensors and a wireless communication module. The method implements a graduated, progressive series of warnings and responses as the cabin temperature and/or CO2 concentration levels reach certain designated setpoints, so that security-compromising steps, such as opening windows, can be deferred until less extreme measures have been exhausted.

Abstract: A method for protecting occupants in the passenger compartment of a parked motor vehicle from exposure to dangerously elevated temperatures and CO2 concentration levels is based on control of vehicle systems by a central microprocessor in communication with CO2 and temperature sensors and a wireless communication module. The method implements a graduated, progressive series of warnings and responses as the cabin temperature and/or CO2 concentration levels reach certain designated setpoints, so that security-compromising steps, such as opening windows, can be deferred until less extreme measures have been exhausted.

Abstract: A method for protecting occupants of in passenger compartment of a parked motor vehicle from exposure to dangerously elevated temperatures is based on control of vehicle systems by a central microprocessor in communication with CO2 and temperature sensors and a wireless communication module. The method implements a graduated, progressive series of warnings and responses as the cabin temperature reaches certain designated setpoints, so that security-compromising steps, such as opening windows, can be deferred until less extreme measures have been exhausted.

Abstract: A method for protecting occupants of in passenger compartment of a parked motor vehicle from exposure to dangerously elevated temperatures is based on control of vehicle systems by a central microprocessor in communication with CO2 and temperature sensors and a wireless communication module. The method implements a graduated, progressive series of warnings and responses as the cabin temperature reaches certain designated setpoints, so that security-compromising steps, such as opening windows, can be deferred until less extreme measures have been exhausted.