THE VEHICLE WAS DRIVING AROUND A CURVE AT APPROXIMATELY 45 MPH WHEN THE STEERING LOCKED. THE DRIVER IS UNCLEAR IF THE BREAKS WORKED OR NOT, BUT HE ENDED UP STEPPING ON THE GAS PEDAL ACCIDENTALLY. HE HIT A TREE HEAD ON AND TOTALED THE TRUCK. HE NOTICED THE AUDIO SYSTEM LOST THE SIGNAL FROM HIS IPHONE AND BEGAN PLAYING THE LOCAL RADIO STATION AT THE SAME TIME. THE IPHONE WAS CONNECTED VIA AN AUXILIARY CORD. THE DRIVER IS FAMILIAR WITH A LOSS OF POWER STEERING AND IS QUITE SURE THE STEERING LOCKED AND WAS UNABLE TO BE MOVED EVEN WITH CONSIDERABLE EFFORT. THE DRIVER WAS TAKEN TO A HOSPITAL BY AMBULANCE AND IS LUCKY TO HAVE ONLY MINOR INJURIES. PRIOR TO THIS, RECALL #17276 WAS COMPLETED ON THE TRUCK, BUT AFTER THAT IT DID HAVE AN ELECTRICAL INCIDENT WHERE ALL ELECTRICAL COMPONENTS WENT HAYWIRE, BLINKING & BEEPING & TURNING ON & OFF, THEN EVERYTHING WENT DEAD, INCLUDING THE STEERING. THE TRUCK WAS TOWED TO THE DEALERSHIP WHO REPLACED THE BATTERY & FOUND NO OTHER PROBLEMS. WE KEPT THE BATTERY THEY REPLACED, HAD IT TESTED & IT WAS FOUND TO BE FINE. THE DEALERSHIP REFUNDED THE COST OF THE NEW BATTERY, BUT OFFERED NO SOLUTION TO THE ELECTRICAL PROBLEM.