Vehicle tire pressure alert system for paved road and off-road driving conditions

A tire pressure monitoring system comprising:

• a vehicle body structure;
• a plurality of wheels rotatably mounted to the vehicle body structure, each of the plurality of wheels having a tire pressure sensor installed therein;
• a receiver configured to receive tire pressure signals from each of the tire pressure sensors;
• an alerting device;
• an electronic input/output device configured to receive manually input instructions;
• and
• an electronic controller having electronic memory and being electronically connected to the receiver, the alerting device and the electronic input/output device, the electronic input/output device being configured for vehicle operator input of a first preset tire pressure and a second preset tire pressure for each of the plurality of wheels being stored in the electronic memory, the first preset tire pressure being for paved road driving conditions and the second preset tire pressure being for off-road driving conditions, the electronic controller storing in the electronic memory the vehicle operator input of the first preset tire pressure and the second preset tire pressure,
• in response to the vehicle operator inputting to the electronic controller a change from on-road driving to off-road driving the electronic controller is configured to monitor tire pressure for a first predetermined period of time while a person manually releases air one-by-one from each of the plurality of wheels, in response to determining one-by-one that the change in tire pressure in each of the plurality of wheels from the first preset tire pressure to the second preset tire pressure has been achieved the electronic controller for each of the plurality of wheels operates the alerting device to alert the person manually changing the tire pressure that the change to the second preset tire pressure has been achieved and the vehicle is now ready for off-road driving, and in response to determining that the first predetermined period of time has expired without any change in tire pressure in the plurality of wheels the electronic controller is configured to alert that the first predetermined period of time has timed out, and
• in response to the vehicle operator inputting to the electronic controller a change from off-road driving to on-road driving the electronic controller is further configured to monitor tire pressure for a second predetermined period of time while a person one-by-one adds air into each of the plurality of wheels, in response to determining one-by-one that the change in tire pressure in each of the plurality of wheels from the second preset tire pressure to the first preset tire pressure has been achieved the electronic controller for each of the plurality of wheels operates the alerting device to alert the person manually changing the tire pressure that the change in tire pressure to the first preset tire pressure has been achieved and the vehicle is now ready for on-road driving, and in response to determining that the second predetermined period of time has expired without any change in tire pressure in the plurality of wheels the electronic controller is configured to alert that the second predetermined period of time has timed out.