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Symptoms indicates a wiring fault. Radio presets are stored in memory which receives constant power from the Radio fuse # 1 ( 20 A) in engine compartment fuse box.
I believe you have a loose connection or a bare wire somewhere that is affected by the braking. The sudden motion of the vehicle due to braking could be causing the connector to shift and the wire to short momentarily.
I would suggest checking the connectors at the underhood fusebox to the underdash. Check also for loose wires or harness that are affected by the brake pedal.
Does the brake bulb fuses each time the mentioned problem occurs?
Wednesday, April 8th, 2009 AT 2:01 AM