2017 Chevrolet Colorado

WHEN AUTOMATIC TRANSMISSION DOWNSHIFTS INTO 1ST GEAR COMING TO A STOP, IT LUNGES FORWARD. IF WHEN NOSING INTO A PARKING SPACE WITH ANY KIND OF POLE OR VEHICLE DIRECTLY IN FRONT OF MY TRUCK, NOT LEAVING ENOUGH SPACE MY TRUCK WOULD HIT WHATEVER. WHEN DRIVING SLOWLY WITH MY 8 SPEED AUTOMATIC TRANSMISSION SOMETIMES IT RATTLES AS IF I AM ON A RUMBLE STRIP AND SOMETIMES IT JUST CLUNKS OR THUDS. THIS AND OTHER SHIFT ISSUES MAKE ME EVEN MORE HYPER VIGILANT WHEN DRIVING. 6 MONTHS AFTER I PURCHASED MY BRAND NEW 2017 COLORADO, DURING A SPELL OF NEGATIVE DEGREE WEATHER I LOST THE FOLLOWING: MY CRUISE CONTROL, TRACTION CONTROL, FOUR-WHEEL DRIVE; MY ENGINE LIGHT CAME, OIL LIGHT ALL LIGHTS CAME ON AND MY RADIO STOPPED WORKING. I WAS TOLD BY MY CHEVY DEALER THAT THIS WAS NORMAL IN COLD WEATHER. NEXT, I WAS INFORMED IT MUST BE BECAUSE I WASHED MY VEHICLE THE DAY BEFORE. THIS WENT ON FOR A FEW MONTHS, WITH ME SHOWING THEM VIDEOS AND THEM TELLING ME THEY COULD NOT DUPLICATE THE ISSUE. OCTOBER OF 2018 THEY REPLACED MY RADIO BECAUSE EVIDENTLY THE RADIO HAD A BULLETIN THAT SHOWED ALL OF THE THINGS I HAD COMPLAINED ABOUT. I WANT TO SAY THIS HAPPENED IN EXCESS OF 10 OR MORE TIMES. DRIVING TO MY MOTHERS ONE EVENING IN THE DARK MY DASH LIGHTS WERE NOT DIMMING CORRECTLY AND THEN WENT OUT. AS I GOT TO A FOUR WAY INTERSECTION WITH CARS COMING THEY CAME ON SO BRIGHTLY I ALMOST GOT IN AN ACCIDENT WHICH PROMPTED ME TO MAKE AN APPOINTMENT AND I WASN'T WILLING TO HEAR SILLY EXCUSES.

THE AIR CONDITIONER PERIODICALLY AND AT RANDOM WILL FREEZE UP ON TRIPS OVER 1/2 HOUR. I HAVE TAKEN IT TO THE DEALER TWICE. ONCE THEY COULD DUPLICATE THE PROBLEM AND REPLACED THE EVAPORATOR TEMPERATURE SENSOR. BUT I STILL HAVE THE PROBLEM. THIS LAST TIME THEY KEPT THE VEHICLE TWO DAYS AND COULDN'T DUPLICATE THE PROBLEM. I HAVE MEASURED THE VENT AIR TEMPERATURE AS LOW AS 35 DEGREES (THE TEMP SENSOR SHOULD NOT ALLOW THIS) AND HAVE ALSO MEASURED THE TEMP AT 40 DEGREES F AT WHICH TIME IT STARTED TO FREEZE UP. WHEN THIS OCCURS, THE VOLUME OF AIRFLOW DROPS, THE VENT AIR TEMPERATURE STARTS TO CLIMB AND IF I STOP AND OPEN THE HOOD I WILL SEE ICE ON THE EVAPORATOR LINE. THE PROBLEM HAS OCCURRED ON THE HIGHWAY ON 2 TO 3 HOUR TRIPS BUT ALSO HAS OCCURRED ON A 1 HOUR TRIP AT 50 MPH AND ALSO A 1/2 HOUR TRIP IN CITY (STOP AND GO) TRAFFIC. THE AC COMPRESSOR DOES NOT APPEAR TO EVER TURN OFF, UNLESS I PUSH THE BUTTON TO TURN OFF THE AC. THE DEALER CANNOT FIX. GM ENGINEERS ARE STUDYING BUT DON'T HAVE A SOLUTION.

AIR CONDITIONING IS INTERMITTENT/BLOWS WARM/EMITS FOG FROM VENTS. THE DEALER SAYS NO FIX AVAILABLE YET CITES PER DOC ID:5125499.SAYS ENGINEERING IS STUDYING PROBLEM. MINE STOPS WORKING-BLOWS WARM WITH IN 1/2 HOUR. ALSO IN STOP/GO TRAFFIC THE TRANSMISSION DOWNSHIFTS ABRUPTLY AND CAUSES TRUCK TO ACCELERATE FORWARD-HAVE TO APPLY BRAKES HARD TO AVOID COLLISION. DEALER SAYS CAN NOT REPEAT BUT SHIFTING IS CONSISTENTLY ABRUPT AND I HAVE ASKED ABOUT SOFTWARE UPDATES TO ALLIEVIATE THIS SAFTY CONCERN TO NO AVAIL