2016 Chevrolet Colorado

I LIVE IN A RURAL AREA WITH MODERATE HILLS AND MANY WINDING ROADS AND TREE OBSCURED CORNERS. WHILE DRIVING AT A MODERATE SPEED (30-40 MPH), I EXPERIENCE PROBLEMS WITH THE VEHICLE'S ABILITY TO DOWNSHIFT FROM OVERDRIVE TO ADDRESS THE INCREASING INCLINE. THE VEHICLE WILL, DESPITE NORMAL INCREASE IN FUEL PEDAL PRESSURE, LOSE RPM'S FROM APPROXIMATELY 2,000 TO 1,000. AS IT APPROACHES 1,000 RPM, THE VEHICLE BEGINS TO "STUTTER" AND "LURCH" AS THE ENGINE TRIES TO COPE WITH THE HIGHER GEAR. THERE ARE TWO "FIXES" FOR THIS; PUSHING THE GAS PEDAL DOWN FIRMLY, WHICH CAUSES THE VEHICLE TO RADICALLY DOWN SHIFT AND "LEAP" FORWARD, OR TO DROP THE TRANSMISSION LEVER TO "MANUAL" AND MANUALLY CHANGE GEARS (WITHOUT THE "LEAP" SEEN IN THE FIRST METHOD). THE END RESULT OF THE NON-MANUAL APPROACH IS TO CAUSE THE VEHICLE TO ACCELERATE RADICALLY IN AN ENVIRONMENT OF OBSCURED CORNERS AND UPHILL DRIVING. I BELIEVE THIS IS A DANGEROUS SAFETY PROBLEM AS THE AREA IS SWARMING WITH DEER, BICYCLISTS, PEDESTRIANS, ETC. I HAVE ALSO HAD "STUTTERING" INCIDENTS WHEN ACCELERATING FROM LOW SPEED, TO ENTER TRAFFIC, INTERSTATE, ETC., ALTHOUGH THESE HAVE BEEN INTERMITTENT IN NATURE. I HAVE NOTICED THAT THE VEHICLE WILL ALSO RADICALLY DOWNSHIFT GOING DOWNHILL WITHOUT WARNING AND SEEMS TO TAKE A LONG TIME TO UP SHIFT ONCE IT IS ON LEVEL GROUND - AGAIN AN INTERMITTENT ACTION. FORTUNATELY NO ONE HAS BEEN "TAILGATING" ME WHEN THIS OCCURS (A COMMON FAILING OF DRIVERS IN THIS AREA). I HAVE HAD THE VEHICLE TO THE DEALER TWICE FOR THE FAILURE TO DOWNSHIFT FOR A HILL AND THEY TELL ME CHEVROLET DOES NOT RECOGNIZE A PROBLEM WITH THE TRANSMISSION, SHIFTING, ETC. A SIDE NOTE: THIS PROBLEM DOES NOT EXIST IN CRUISE CONTROL, BUT USE OF CRUISE CONTROL ON THESE BACK ROADS WOULD NOT BE ADVISABLE.

CHEVY SAID THERE ARE NO FIXES FOR THE FOLLOWING COMPLAINTS. TRANSMISSION IS ACCEPTABLE AND SMOOTH SHIFTING UNDER LIGHT LOADS. UNDER A NEED FOR DOWNSHIFTING FOR ACCELERATION THE DOWN SHIFTING IS DELAYED OR HESITATES MOMENTARILY AND THEN THE TRUCK JERKS FORWARD TO A EXCESSIVELY LOWER GEAR & THE UPSHIFTS TO THE GEAR IT SHOULD HAVE IN THE FIRST PLACE. THE DELAY OR LAG IN DOWNSHIFTING CREATES A VERY DANGEROUS CONDITION WHEN NEEDING INSTANT POWER. THERE IS MUCH DIFFICULTY WHEN MERGING INTO TRAFFIC WHEN POWER IS NEEDED.. MANIPULATING THE MANUAL SHIFT CAN COVER UP THIS DEFECT ON SOME OCCASIONS WHEN IF YOU HAVE TIME TO PLAN FOR IT. THE TRANSMISSION ALSO SHUTTERS AT LOW LOAD MANY TIMES RESULTING IN NO POWER UNTIL YOU DOWNSHIFT. THEN THIS DOWNSHIFT IS DELAYED AND THEN BECOMES ABRUPT AGAIN. THE SHUTTER FEELS LIKE THE TRUCK IS GOING OVER SMALL BUMPS IN THE ROAD. THE TRANSMISSION SHIFTING IS CERTAINLY NOT CORRECT AND CERTAINLY RESULTS IN UNSAFE SITUATIONS. I SHOULD HAVE TEST DRIVEN THE TRUCK UNDER MORE CONDITIONS THAN I DID AND PROBABLY WOULD NOT HAVE PURCHASED IT. I HEAR THAT THIS PROBLEM CAN BE FIXED WITH AN AFTERMARKET COMPUTER UPDATE. CHEVY PROBABLY DOSE NOT WANT TO ADMIT THAT IN ORDER TO HAVE THE GAS MILEAGE RATINGS THE TRANSMISSION MUST BET THIS WAY. ALSO NOTE THAT THE 2017 COLORADO WILL HAVE AN 8 SPEED TRANSMISSION.

2,400 MILES AND THIS VEHICLE HAS BEEN BACK TO THE DEALER FOUR TIMES FOR "CHUGGING AND SHUTTERING" IN HEAVY TRAFFIC. DRIVING THOUGH AN INTERSECTION WITH HEAVY TRAFFIC IT WILL NOT KEEP UP WITH TRAFFIC BUT TENDS TO BOG DOWN ALMOST GETTING REAR ENDED FROM BEHIND. IF YOU TRY TO SMOOTHLY ACCELERATE IT WILL RAPIDLY DOWNSHIFT AND JUMP FORWARD ALMOST REAR ENDING ANY VEHICLE IN FRONT. VERY UNSAFE TO DRIVE. TRYING TO DRIVE WITH THE FLOW OF TRAFFIC AT 35-40 MPH THE TRUCK SHUTTERS AS IF THE SPARK PLUGS ARE WORN OUT. ALSO TRYING TO ACCELERATE INTO ON COMING TRAFFIC IT WILL SOMETIMES CHUG TO WHERE YOU WONDER IF IT'S GOING MAKE MAKE THE MERGE. VERY FRUSTRATING TO DRIVE FOR A BRAND NEW TRUCK, THE DEALER REPLACED THE TORQUE CONVERTER AT 500 MILES, THEN HAS PREFORMED SERVICE BULLETIN #PIP5342B THREE TIMES WITH ABSOLUTELY NO IMPROVEMENT. GM STATES IN THE BULLETIN "NOTE: PREFORMING THIS CALIBRATION UPDATE MAY NOT TOTALLY ADDRESS THE SHUDDER OR CHUGGING CONCERNS" HOW CAN NEW VEHICLES CONTINUE TO BE SOLD WITH THIS KNOWN PROBLEM? NOT ONLY IS IT FRUSTRATING TRYING TO DRIVE SMOOTHLY, BUT IT IS ALSO A SAFETY CONCERN. DUE TO THE POOR PERFORMANCE THE MILEAGE IS ABOUT 13 MPG IN CITY TRAFFIC, NOT EVEN CLOSE TO THE MILEAGE RATING OF 17 MPG.

WHILE DRIVING ON A HILLY HIGHWAY AT 55 MPH, THE TRUCK SUDDENLY LURCHED INTO AN EXTREME DOWNSHIFT AS I WAS GOING DOWNHILL. I HAD NOT BEEN MAKING ANY SIGNIFICANT BRAKING OR ACCELERATION MOTIONS--JUST DRIVING NORMALLY WITH THE FLOW OF TRAFFIC AND I HAD NOTHING IN TOW. THE TRUCK DECELERATED QUICKLY AND THE RPMS CLIMBED SIGNIFICANTLY. THIS OCCURRED TWICE: ONCE AROUND 2,800 MILES AND A SECOND TIME AT 3,400 MILES, UNDER THE SAME CONDITIONS - DRY ROADS, DAYTIME, GOING DOWNHILL ON A HIGHWAY. THERE WERE NOT ANY WARNINGS, AND NONE OF THE SERVICE LIGHTS CAME ON. IT WOULD NOT SHIFT OUT OF THIS GEAR. EACH TIME, I HAD TO AVOID BEING HIT FROM BEHIND, AND PULLED OVER TO THE SIDE OF THE ROAD TO STOP COMPLETELY. THEN I WAS ABLE TO PROCEED WITH NORMAL FUNCTIONING OF THE TRANSMISSION. THE CAUSE IS UNKNOWN.

WHILE DRIVING THE 2016 COLORADO, THE TRANSMISSION/ENGINE SEEMS TO HAVE TROUBLE SHIFTING AND ACCELERATING AND THE SHIFT PATTERNS ARE ERRATIC IT SEEMS, MAYBE ITS THE FUEL EFFICIENT CRAP THAT SHUTS DOWN CYLINDERS, MAYBE ITS THE TRANS? . EXPERIENCED IT ON HIGHWAYS AND LOWER SPEEDS, STOP AND GO TRAFFIC, TRUCK'S TRANSMISSION CLUNKS, SHIFTS HARD AT RANDOM AND STUTTERS ALLOT . IT'S AGGRIVATING. WHEN TRYING TO PASS, SEEMS TO BE ZERO ACCELERATION FELT WHEN FLOORING IT THEN SUDDENLY KICKS IN (ROUGHLY)..LIKE OH HEY-I NEED TO GO.. I COULD GET IN A WRECK-ENDED BECAUSE OF THIS AND I BETTER NOT TRY TO PASS ANYONE.. I FEEL MY SAFETY COULD BE AT RISK WITH AS MUCH HESITATION THEN SUDDENLY LURCHES AS IT HAS. I SEE QUITE A FEW COMPLAINTS ALREADY CONCERNING THIS AND/OR DESCRIBING JUST ABOUT THE SAME ORDEAL. DAILY - BUT RANDOM - CITY AND HIGHWAY, TURNING, STRAIGHT ETC. BASICALLY ANY SITUATION BUT IDLE.

VEHICLE STALLS SOMETIMES WHEN I STOP. SE LIGHT IS NOW ON. SERVICE BRAKE ASSIST COMES ON NOW. TRUCK SURGES AND SHUTTERS AND IS ANNOYINGLY HUNTING FOR GEARS AND CAN'T FIND THEM. SLUGGISH THROTTLE LIKE I'M TRYING TO PULL A BULL DOZER OUT OF THE MUD. THIS MOSTLY HAPPENS BETWEEN 15 AND 40 MPH BACK ROADS AND HIGHWAY STOP-N-GO. NOT SETTLING FOR THE "OH THAT'S NORMAL" BSHT. SHOULD HAVE BOUGHT A FORD F150. TIME FOR A TRADE IN. 10K MILES AND I AM COMPLETELY DISGUSTED WITH CHEVY NOW. ALL I CAN SAY IS GOOD LUCK IF YOU HAVE A 2016 COLORADO.

THE TRANSMISSION HESITATES WHILE TRYING TO FIND THE CORRECT GEAR..I SPOKE TO A MAINTENANCE REP AT THE DEALERSHIP WHERE I BOUGHT MY TRUCK AND HE SAID THAT THE ENGINEERS MADE THE TRUCK THAT WAY FOR FUEL EFFICIENCY. HE ALSO TOLD ME TO JUST FLOOR THE ACCELERATOR TO GET POWER WHEN I NEED IT. IT STILL HESITATES EVEN WHEN I FLOOR IT AND HOW DOES THAT HELP FUEL EFFICIENCY? HE SAID IF A TECHNICAL SERVICE BULLETIN COMES OUT ON THIS ISSUE THAT I CAN BRING IN MY TRUCK AND THEY WILL FIX THE ISSUE. I AM SCARED TO PASS A VEHICLE UNLESS ABSOLUTELY NOTHING IS COMING FOR FEAR OF THE TIME IT TAKES FOR THE TRUCK TO FIND THE CORRECT GEAR. IT ALSO KIND OF JERKS WHEN IT DOES FIND THE RIGHT GEAR. THIS HAS BEEN GOING ON SINCE I PURCHASED IT IN JANUARY OF 2016.

ON 6/6/16 I STARTED HAVING THE TROUBLE. AFTER BACKING UP AND PUTTING THE TRUCK IN GEAR, THE TRUCK WOULD SURGE FORWARD WITHOUT TOUCHING THE GAS PEDAL. THIS ALSO OCCURRED ON 6/11/16, 6/17/16 AND 6/23/16. ON 6/23/16 I WAS AT SURDYKES PORT 20 MARINA AT THE LAKE OF THE OZARKS. AFTER BACKING OUT OF THE PARKING SPACE I PUT IT IN GEAR. THIS TIME IT WAS MUCH MORE THAN A SURGE. IT LITERALLY SHOT FORWARD AND EVEN THE BRAKES DIDN'T HELP BECAUSE WITHIN 3-4 SECONDS MY TRUCK AND I WERE IN THE LAKE. FINALLY GOT THE WINDOW TO BREAK SO I COULD ESCAPE. JUST BEFORE I WENT IN THE LAKE THE TRUCK STRUCK AN OLD GOLF CART AND JET SKI TRAILER THAT WERE PARKED THERE AND TOOK THEM INTO THE LAKE ALSO.

WHILE DRIVING THE COLORADO, THE TRANSMISSION GETS SO CONFUSED ON WHAT GEAR TO BE IN AND THE SHIFT PATTERNS ARE THE CRAZIEST I HAVE EVER EXPERIENCED. FROM 40-20MPH, STOP AND GO TRAFFIC, THIS TRUCK'S TRANSMISSION CLUNKS, SHIFTS HARD, STUTTERS AND CANNOT FIGURE OUT WHICH GEAR TO BE IN. IT'S VERY FRUSTRATING. NOT TO MENTION, WHEN TRYING TO PASS, THERE IS ZERO ACCELERATION FELT WHEN FLOORING THE PEDDLE. I AM SO FRUSTRATED WITH THIS TRANSMISSION AND MANY DAYS DURING THE TO AND FROM WORK COMMUTE, I FEEL AS IF I AM GOING TO GET REAR-ENDED BECAUSE OF THIS TRANSMISSION. IT'S ANNOYING WHEN DRIVING BUT STRESSFUL AS WELL, BECAUSE I FEEL AS IF MY SAFETY IS IN JEOPARDY DUE TO THIS "LEARNING" TRANSMISSION. IT'S SO DISAPPOINTING.