WAS ON MY WAY TO WORK ON WET ROADS RAINED THE NIGHT BEFORE AND WAS RAINING THAT MORNING, I ROUNDED THE LAST CURVED ON A 30 MPH ROAD AND I WAS ONLY DOING BETWEEN 25 TO 28 I STARTED SLIDING AND TURNED MY WHEEL LEFT HANDED SO HARD THAT IT BROKE THE MULTI FUNCTION SWITCH AND HIT HEAD ON INTO A TREE IT LIFTED THE REAR OF MY TRUCK UP AND SLAMMED IT BACK DOWN I HAD 300 LBS OF SAND RATCHET STRAPPED WITH 2 RACHET STRAPS THE SAND BAGS ARE NOW AT THE CAB PART OF THE BED. NO MESSAGE LIGHTS OF ANY KIND WERE ON THE DASH PRIOR TO THIS ACCIDENT AND MY FRONT AIRBAGS DID NOT DEPLOY. I WOULD LIKE TO KNOW HOW THAT'S POSSIBLE WITH HITTING A FIRM OBJECT AT 25 MPH TO 28 MPH. THE INSURANCE COMPANY IS INVOLVED WITH THE ACCIDENT AND THE TRUCKS WAS TOWED TO A BODY SHOP BUT NO WORK HAS BEEN PERFORM ON IT AS OF YET BECAUSE I REQUESTED THE AIRBAGS BE INVESTIGATED.