2015 Chevrolet Colorado Suspension Problems

WHEN SLOWING DOWN AND THEN ACCELERATING AFTERWARD WHILE IN TRAFFIC THE VEHICLE DOES NOT DOWN SHIFT TO THE CORRECT GEAR. THE VEHICLE WILL THEN SPUTTER AND WILL BE VERY SLUGGISH TO ACCELERATE. THIS HAPPENS WHILE IN MOTION AS WELL AS FROM A COMPLETE STOP. I WAS NEARLY REAR ENDED WHILE MAKING A RIGHT TURN INTO TRAFFIC AND THE TRUCK WOULD NOT FIND THE CORRECT GEAR AND THUS WOULD NOT ACCELERATE ENOUGH TO GET OUT OF THE WAY FROM ONCOMING TRAFFIC. SEVERAL TIMES I THOUGHT THAT THE TRUCK WAS GOING TO KILL BECAUSE IT WAS SPUTTERING SO MUCH WHEN IN THE INCORRECT GEAR. TRUCK ALSO WOBBLES MORE THAN USUAL WHEN TURNING AND MAKES A POPPING SOUND IN A TURN. ALSO, RADIO ACTS LIKE IT HAS A MIND OF ITS OWN. NAVIGATION WILL GO HAYWIRE AS IF SOMEONE IS TOUCHING THE SCREEN, BUT NO ONE IS TOUCHING IT. RADIO WILL CHANGE CHANNELS ON ITS OWN AND VOLUME WILL INCREASE AND DECREASE WITHOUT ANY DRIVER INPUT.