What type of information can pilots receive from GPS systems?

Pilots can receive exact location and path information from GPS systems, which is essential for navigation. GPS, or Global Positioning System, utilizes a network of satellites that transmit signals to receivers on the aircraft, allowing precise determination of the aircraft's current position in terms of latitude, longitude, and altitude. This capability enables pilots to track their flight path accurately and make necessary adjustments to maintain the intended course. The precision of GPS is crucial for various phases of flight, including en-route navigation, approaches, and landings, enhancing operational safety and efficiency.

The other options, while related to aviation operations, do not pertain to the core functionality of GPS systems. Maintenance schedules are usually managed through internal company systems, weather updates may come from meteorological services or onboard weather radar, and air traffic control messages are communicated via radio transmissions and are not a function of GPS technology.