While crossing an intersection (eastbound) in my ford explorer on a dry, flat straight paved road (i was starting from a stop sign, whereas the street i was crossing has no stop sign for the north and southbound intersecting road) ... with my foot on the gas at a very slow speed (under 5 mph), the vehicles brakes engaged on their own after i was partially through the intersection, bringing my vehicle to a stop. my foot was solely on the gas pedal, and i was not applying the brakes. four dashboard warning lights then illuminated; including the (1) stability control, (2) the 4x4, (3) the abs and (4) the wrench. i applied the gas pedal further to try to get out of the intersection, but the brakes did not release. then i took my foot off the gas and the brake released and the warning lights came off. this happened 3 times! i was then able to get out of the busy intersection with just the idle moving the vehicle forward. once out of the intersection i again pressed the gas pedal, and the brake engaged again, stopping the vehicle. after happening about another few times i was able to coast to the side of the road and there i left the vehicle. the vehicle was then brought to a local repair shop, who put the vehicle on a computer diagnostic device, and they determined that the brake sensor in the left front wheel was sensing a problem and automatically engaging the left front brake. i feel fortunate that i was not broad-sided by any oncoming vehicles when the faulty brake system brought my truck to a stop in the road intersection. brake problem also happened the night before, but in that case i was driving in a residential neighborhood at about 30 mph and coasting as i approached a stop sign. when i applied the brakes, the brake pedal did not want to depress and then within a few seconds all the same 4 warning lights came on. the brake pedal made a sound similar to when abs deploys, but the brake pedal resisted going down; in fact the brake pedal barely moved. *tr