2016 Chevrolet Colorado

TRANSMISSION HESITATION: VEHICLE DOESN'T ACCELERATE WHEN ITS SUPPOSED TO. WHEN GOING FROM A NORMAL RATE OF SPEED TO SLOWING DOWN TO MAKE A TURN, DOESN'T DOWNSHIFT PROPERLY, THEREFORE WHEN YOU MAKE THE TURN AND ACCELERATE AGAIN IT HESITATES (NEARLY STALLING) JERKS AND SKIPS. HAVE HAD MANY CLOSE CALLS BECAUSE OF THIS. NEARLY BEING REAR ENDED ON SEVERAL OF THOSE OCCASIONS. HAVE TRIED CONTACTING GM ABOUT THE PROBLEM AND GOT NOWHERE. HAVE BEEN PUT ON A WAITING LIST AT THE DEALERSHIP WITH NO INDICATION OF WHEN THIS WILL BE FIXED. IT HAS EVEN GOT TO THE POINT WHERE MY FUEL ECONOMY HAS SERIOUSLY DIMINISHED.

NOTICED IMMEDIATELY AFTER PURCHASE WITH 18 MILES. NOTICED AT SLOWER SPEEDS UNDER 45 MPH THE TRUCK WOULD UP-SHIFT TO A HIGHER GEAR WHEN LETTING OFF THE ACCELERATOR. UPON DEPRESSING THE ACCELERATOR AGAIN THE TRUCK WOULD HESITATE, JERK,PING, OR JUST PLAIN NOT ACCELERATE UNTIL EXCESSIVE PRESSURE WAS PLACED ON THE ACCELERATOR. AT THIS POINT IT WOULD DOWN-SHIFT HARD A COUPLE OF GEARS AND CAUSE UNSAFE ACCELERATION IN HIGH TRAFFIC SCENARIOS.

AT APPROX. 3500 MILES STARTED EXPERIENCING SHIFTING ISSUES. WHEN SLOWING DOWN TRANSMISSION WANTED TO STAY IN 5TH OR 6TH GEAR. ATTEMPTS TO ACCELERATE CAUSED THE TRUCK TO BOG DOWN UNTIL IT SHIFTED TO A LOWER GEAR TO ACCELERATE AGAIN. WHEN IN CRUISE CONTROL PROBLEM WAS REALLY BAD. WOULD LOOSE AS MUCH AS 5-8 MPH BEFORE A LOWER GEAR WAS FOUND TO MAINTAIN SPEED IN HILLY CONDITIONS. I TOOK VEHICLE IN FOR ITS FIRST SERVICE AT APPROX. 6000 MILES AND HAD DEALER CHECK TRANSMISSION. THEY REMAPPED SHIFT POINTS TO SPEC SOFTWARE. THIS WAS A TEMPORARY FIX. ISSUE IS SLOWLY RETURNING. I HAVE WATCHED ON CONTROL PANEL AT TRANSMISSION OIL TEMP ( TRUCK HAS TRAILER TOWING PACKAGE ETC. THIS IS A CLUSTER FEATURE AVAILABLE.) SEEMS TO SHIFT PROPERLY UNTIL OIL REACHES 100 DEGREES PLUS THEN ISSUE ARRIVES. DEALER RELAYED THERE HAD ONLY BEEN A TECH SERVICE BULLETIN HAS BEEN TO RESET MAP/SHIFT POINTS. RECENTLY PULLED MY BOAT WITH THIS TRUCK AND TRANSMISSION SHIFTED FINE. REALLY WOULD LIKE THIS ISSUE FIXED BECAUSE OTHER THEN THIS PROBLEM REALLY LIKE THE TRUCK.

THE TRUCK WHEN SLOWING DOWN TO AROUND 20MPH AND ACCELERATING SEEMS TO LAG OR FOR LACK OF A BETTER DESCRIPTION SEEMS TO BE "UNABLE" TO FIND THE CORRECT GEAR. SOMETIMES IT ACTS AS IF THE ENGINE HAS A "MISS". I TOOK IT TO THE DEALER AND WAS TOLD THIS IS "NORMAL OPERATION". WHEN YOU GOOGLE THIS COMPLAINT THERE IS PAGE AFTER PAGE OF OWNERS HAVING THE SAME PROBLEMS WITH 2015 AND 2016. IT SEEMS TO ME THIS IS A PROGRAMMING ISSUE WITH THE TRANSMISSION. IT SEEMS TO HAVE TROUBLE FINDING THE CORRECT GEAR AND WILL SOMETIMES JERK OR DOWNSHIFT TOO LOW. IT HAPPENS AT ANY TIME THE VEHICLE SLOWS DOWN TO AROUND 20 AND ACCELERATES. IT ALSO HAPPENS AT TIMES WHEN AT A FULL STOP AND TAKING OFF IN A NORMAL MANNER.

WHEN TRYING TO ACCELERATE FROM A LOW SPEED, MAYBE 20 MPH OR LESS, THE TRANSMISSION OFTEN DOES NOT DELIVER ANY POWER TO THE DRIVE WHEELS (THE MOTOR REVS UP BUT THE VEHICLE DOES NOT ACCELERATE). ALSO, WHEN CLIMBING A HILL AT NORMAL ROAD SPEEDS THE TRANSMISSION OFTEN DOES NOT DOWN SHIFT, TO THE POINT WHERE THE MOTOR ALMOST STALLS, AND THE FEW TIMES THAT IT DOES DOWN SHIFT THERE IS AN EXPLOSIVE INCREASE IN ENGINE RPMS RESULTING IN AN ALMOST UNCONTROLLABLE BURST OF VEHICLE SPEED. CHEVROLET SAYS THIS IS THE WAY IT'S DESIGNED TO WORK. IF IT IS, IT'S THE FIRST VEHICLE I'VE SEEN, OR EVEN HEARD ABOUT, THAT DOES THESE DANGEROUS THINGS.

VEHICLE STALLS. WHEN NAVIGATING A CORNER TRANSMISSION LOOSES ITS GEAR AND ACTS LIKE IT DOESN'T KNOW WHAT TO DO AND BANGS AND STALLS. ALSO TRANS ACTS CONFUSED STOP AND GO SITUATIONS(CITY) AND BANGS WHEN IT REMEMBERS. ALSO DOES THIS WHEN COASTING ON HIGHWAY AND ACCELERATING AGAIN. IT MAY JUMP DOWN SEVERAL GEARS AND TAKE OFF. VEHICLE ALSO HAS STALLED SEVERAL TIMES AT RED LIGHTS AND HAS A ROUGH IDLE MOST OF THE TIME LIKE IT WANTS TO STALL. BEEN IN SHOP NUMEROUS TIMES FOR SAME THING AND ADVISED CHEVY BUT THEY CANT FIGURE IT OUT AND IT IS STILL DOING IT. ALSO LOOKED ONLINE FOR POSSIBLE ANSWERS AND THERE ARE A LOT OF THESE SAME PROBLEMS REPORTED WITH NO ANSWERS.

CHEVY 2016 COLORADO Z71 V6 WITH A 6 SPEED AUTOMATIC: THE TRANSMISSION DOES NOT SHIFT UNDER LIGHT ACCELERATION OR WHEN UNDER LOAD GOING UP A HILL. THE TRUCK HESITATES SEEMS TO MISS AND DOESN'T KNOW WHAT TO DO TO GET IT SO ACCELERATE! IT ALSO HAS THIS ISSUE WHEN LIFTING MY FOOT ON THE GAS WHEN ROLLING THROUGH A CORNER AND THEN HITTING THE ACCELERATOR. THEN I HAVE TO PUSH THE ACCELERATOR HARD TO MAKE THE TRANSMISSION UP SHIFT 2 GEARS TO MAKE THE TRUCK ACCELERATE! THIS IS FRUSTRATING AND DANGEROUS AS IT COULD CAUSE BEING HIT FROM BEHIND WHEN THE TRUCK DOES NOT ACCELERATE AS IT SHOULD. I TOOK MY TRUCK BACK TO THE DEALERSHIP THREE TIMES AND THEY SAID 'THERE ARE NO CODES, THERE SEEMS TO BE NOTHING WRONG THE COMPUTER DOESN'T KNOW WHETHER TO STAY IN THAT GEAR OR UP SHIFT 1 GEAR OR 2. ALL YOU HAVE TO DO IS TO PUSH DOWN HARDER ON THE ACCELERATOR AND LEARN TO DRIVE WITH A SMART TRANSMISSION.' MY REPLY WAS 'I AM NOT PART OF THE VEHICLE SENSOR SYSTEM AND I SHOULD NOT HAVE TO LEARN HOW TO DRIVE TO A POOR SHIFTING SITUATION ESPECIALLY WHEN I AM PAYING THIS MUCH FOR A NEW VEHICLE.' GM SHOULD BE FORCED TO FIX THIS VERY COMMON PROBLEM BEFORE SOMETHING SERIOUS HAPPENS AS A RESULT OF THIS!

LOW TO MODERATE SPEED GEAR SHIFT HESITATION, TRANSMISSION NOT SMOOTHLY SHIFTING,. FEELS LIKE A BAD MISS. ELECTRONICS AND TRANSMISSION/ENGINE NOT IN SYNCH OR SYNCHING. HESITATION, LACK OF RESPONSIVENESS CAN BE SEVER AT TIMES. REBOOT OF ECM HELPED, BUT ISSUE HAS RETURNED WORSE THAN EVER. THIS HAS BEEN A PROBLEM SINCE DAY ONE OF OWNERSHIP. HILL DECENT CONTROL ACTIVATES AT AL SPEEDS INCLUDING HIGH END HIWAY SPEEDS. 40, 50, 60, 70+ MPH ENGAGEMENT - TAP THE BRAKE AND IT ACTIVES. ENGINE RPM'S GO THROUGH THE ROOF. DISABLING THE CONTROL WIT THE BUTTON DOES NOT DEACTIVATE. DEALERSHIP HAS NOT AND DOES NOT OFFER ANY SOLUTION. SEVER LOSS OF CONTROL OF VEHICLE COULD OCCUR IN INCLEMENT WEATHER OR OTHER CONDITIONS. ALSO, FAST SLOW DOWN WITH NO WARNING TO OTHER DRIVERS IN THE VICINITY. ENGINE RPM'S AS HIGH AS 5K IN MY TRUCK IN MOUNTAINOUS PENNSYLVANIA DECEMBER 2016.