2018 Chevrolet Colorado Complaint Log

I HAVE A 2018 CHEVROLET COLORADO LT 4WD CREW CAB. MULTIPLE TIMES ON A COLD START THE ENGINE IS MISFIRING. THE CHECK ENGINE LIKE COMES ON, THE VSA, AND T/C LIGHTS ALL COME ON AND A NOTIFICATION ON THE DASH SAYING STABILITRAK IS DISABLED. THE VEHICLE SHAKES TERRIBLY. THE CHECK ENGINE LIGHT WILL FLASH AND THEN GO SOLID. I AM AN AUTOMOTIVE TECHNICIAN. I KNOW THAT A MISFIRE SHOULD SET A HARD DTC. WHEN THE VEHICLE IS TURNED OFF AND STARTED SEVERAL HOURS LATER THERE IS NO CHECK ENGINE LIGHT OR ANY OTHER LIGHT ON. THE DEALERSHIP IN MARYSVILLE, OH HAD MY TRUCK FOR 3 DAYS AND TOLD ME THEY CLEANED A BUNCH OF TERMINALS AT SEVERAL CONNECTORS. WHATEVER THAT IS SUPPOSED TO DO. THEY SAID THEY STARTED THE VEHICLE SEVERAL TIMES AFTER AND EVERYTHING WAS GOOD. THE NEXT DAY AFTER I PICKED THE TRUCK UP, IT DID THE SAME EXACT THING! EXTREMELY FRUSTRATING! I KNOW A CONTINUOUS MISFIRE LET'S UNBURNED FUEL INTO THE CATALYTIC CONVERTER WHICH LEADS TO PREMATURE BREAKDOWN OF THE CATALYST. SO MY QUESTION IS WHAT IS BEING DONE ABOUT THESE ISSUES? ANOTHER ISSUE IS WITH THE TRANSMISSION. ON A COLD START THERE IS A CLUNK NOISE. THEN WHEN YOU ARE DRIVING AT CRUISING SPEED AND YOU LET OFF THE THROTTLE AND DEPRESS THROTTLE AGAIN THERE IS A SHUDDER. ALSO, WHEN YOU COME TO A COMPLETE STOP THE VEHICLE TRIES TO JOLT FORWARD. THIS IS EXTREMELY CONCERNING ESPECIALLY ON A VEHICLE WITH ROUGHLY 18,000 MILES ON IT. THIS NEEDS TO BE ADDRESSED PROMPTLY!!

BRAND NEW 2018 MIDNIGHT EDITION CHEVY COLORADO LESS THAN 24HRS ON THE ENGINE AND HAD LESS THAN 900 MILES ON IT. WENT TO GO TO WORK ONE MORNING AND IT WOULDN'T DO ANYTHING. NO REVERE. NO POWER STEERING. ALL LIGHTS AND GAUGES WERE FLICKERING AND GOING CRAZY. ENGINE WAS CHUGGING AND MAKING ODD NOISES.IT WOULD NOT MOVE FROM MY GARAGE/DRIVEWAY. HAD IT TOWED IT TO NEAREST DEALERSHIP. OVER 2 WEEKS OF DIAGNOSTICS IT'S EITHER A STEERING MODULE OR A WIRING HARNESS PART. DEALERSHIP TELLS US ITS FAULTY WIRING/STEERING MODULE. IT IS AN INTERMITTENT ISSUE AND IT'S HARD TO DIAGNOSE. I REALLY FEEL THAT THIS COULD CAUSE MANY SAFETY ISSUES SINCE POWER STEERING WAS COMPLETELY OUT AND IT WANTED TO SHUT OFF ON US. THIS COULD HAVE BEEN BAD IF IT HAPPENED WHILE WE WERE DRIVING IT TO WORK. THE DEALERSHIP WE PURCHASED IT FROM HAD DONE SOME ELECTRICAL WORK BUT DID NOT DISCLOSE WHAT WAS DONE UNTIL IT QUIT WORKING AND WAS BROUGHT TO A DIFFERENT DEALERSHIP. THEY BROUGHT IT TO OUR ATTENTION WHEN IT WAS TOWED IN. THE WIRING THAT WAS DONE BEFORE PURCHASE IS WHAT'S CAUSING ALL ISSUES ELECTRONICALLY. TRUCK IS CURRENTLY IN THE SHOP WAITING FOR A PART THAT IS ON BACKORDER. WAITING FOR PAPERWORK AFTER REPAIRS ARE COMPLETED. IF THEY CAN BE COMPLETED. THEY'RE STILL TRYING TO FULLY UNDERSTAND THE ELECTRICAL ISSUES SINCE IT IS SO RANDOM. IT HAS BEEN IN THEIR SHOP FOR OVER 2 WEEKS NOW. I JUST WANT SOMEONE TO BE AWARE OF THESE ISSUES INCASE IT NEEDS TO BE RECALLED. THIS COULD BE A SCARY ISSUE IF IT HAPPENS WHILE DRIVING.

TRANSMISSION SHUDDERING. - IDENTIFIED VARIABLE SPEED OCCURRENCE COULD HAPPEN AT 25 OR 65. UNRELATED TO TIRES/STEERING OR TO SHOCK CAVITATION OR ROUGH ROADS. HAPPENS ON SMOOTH OR ROUGH ROADS. VEHICLE HAS NOT BEEN OFF-ROAD. VARIED INCONSISTENCY. MORE APPARENT WHEN ENGINE IS COLD SHIFTING FROM 1ST TO 2ND TO 3RD THEN WILL DISSIPATE. SHIFTS HARD 1ST TO 2ND AND SOMETIMES 3RD WHEN ENGINE IS COLD. ONCE WARM SHIFTING IS SMOOTHER BUT SHUDDERING STILL OCCURS.

WHEN THE TRUCK IS PUT IN AUTO 4WD MODE WHILE PARKED, INSTEAD OF THE 4WD ENGAGING AS NECESSARY, IT ENGAGES IMMEDIATELY UPON MOTION. THIS MAKES THE AUTO 4WD OPTION OBSOLETE.THIS WAS FIRST NOTICED WHEN I USED 4WD AUTO MODE FOR THE FIRST TIME IN OCTOBER 2018. I'VE NOTIFIED THE DEALER BUT THEY DON'T SEEM TO THINK ANYTHING IS WRONG OR NOT FUNCTIONING PROPERLY.

MY VEHICLE SHAKES AND SHUTTERS WHEN ACCELERATING. I HAVE BROUGHT IT TO CHEVROLET OF WESLEY CHAPEL FL 3 TIMES FOR THE SAME PROBLEM. THE PROCEEDED TO DO A "FLUSH" AND HAVE REPLACED THE TORQUE CONVERTER.

TL* THE CONTACT OWNS A 2018 CHEVROLET COLORADO. THE CONTACT STATED THAT THE DRIVER AND PASSENGER SIDES OF THE FENDER WHEEL/CARGO BED WERE BUCKLING AND RIPPLING. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO ALL AMERICAN CHEVROLET OF SAN ANGELO (203 NORTH BRYANT BLVD, SAN ANGELO, TX 76903, 844-342-6320), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 95019035528. NO FURTHER ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS 69,000.

LOOSE RATTLING SHEET METAL OR OTHER PARTS IN DRIVERS DOOR PILLAR NEAR SIDEWALL AIRBAG AREA. MAY CAUSE SERIOUS INJURY IF IT INADVERTENTLY DEPLOYS AIRBAG, OR RESTRICTS AIRBAG DEPLOYMENT IN AN ACCIDENT. GM HAS BEEN NOTIFIED OF THIS DEFECTIVE PROBLEM ON ALL COLORADO AND CANYON MODELS SINCE 2016 WITH NO ACTIONS. OTHER DEALERS HAVE USED EXPANDING FOAM TO ATTEMPT TO SECURE LOOSE PARTS TO PREVENT THE NOISE. THIS MAY HINDER AIRBAG DEPLOYMENT IF NOT ADDRESSED.

CHEVY COLORADO A BAD VIBRATION IN DRIVETRAIN. TOOK TRUCK TO DEALER WHO SAID IT WAS TORQUE CONVERTER PROBLEM. IT HAS BEEN AT DEALER FOR 9 DAYS BECAUSE THEY ARE DOING 9 VEHICLES A DAY FOR THIS PROBLEM. SUPPOSEDLY THEY ARE GOING TO CHANGE TORQUE CONVERTOR, OTHERS THEY JUST CHANGE THE OIL IN TORQUE CONVERTOR. THIS IS DONE APPROXMATELY 9 TIMES A WEEK AT THIS ONE DEALER, ROSS DOWNING IN HAMMOND, LA. THIS IS THE 8SP TRANS. THAT IS USED IN SEVERAL GM REAR DRIVE CARS AND TRUCKS. MY TRUCK ONLY HAS 6300 MILES ON IT. WHEN TRYING TO PASS VEHICLES ON INTERSTATE IT VIBRATES SO BAD OVER 70 MPH I AM AFRAID TO WRECK. OTHERS I HAVE TALKED TO AT DEALERSHIP CLAIM THERE VEHICLE VIBRATES AT LOWER SPEEDS, SURGES AND MAKING NOISE. THIS DEALERSHIP DOING 9 A WEEK, THAT PROBABLY IS SEVERAL THOUSAND A WEEK STATEWIDE. THIS IS A TERRIBLE PROBLEM THAT NEEDS FIXIN. MANY THANKS.

TL* THE CONTACT OWNS A 2018 CHEVROLET COLORADO. THE CONTACT STATED THAT THE HOOD BOUNCED UP AND DOWN WHILE DRIVING AT VARIOUS SPEEDS WITHOUT WARNING. THE CONTACT INITIALLY TOOK THE VEHICLE TO JEFF GORDON CHEVROLET (228 S COLLEGE RD, WILMINGTON, NC 28403) WHERE THEY ADJUSTED THE HOOD LATCH BUT THE FAILURE PERSISTED. THE CONTACT THEN TOOK THE VEHICLE TO OCEAN CITY CHEVROLET (2366 OCEAN HWY W, SHALLOTTE, NC 28459) WHERE THEY WERE UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS THEN NOTIFIED OF THE FAILURE AND A CASE WAS FILED. SHE WAS THEN INFORMED THAT SHE WOULD BE CALLED BACK FOR AN UPDATE. SINCE THE INITIAL CONVERSATION, THE CONTACT HAD NOT HEARD BACK FROM THE MANUFACTURER AND HAD BEEN UNABLE IN REACHING THE MANUFACTURER. THE VEHICLE HAD YET TO BE REPAIRED. THE FAILURE MILEAGE WAS 3,901. *BF *AS

TL* THE CONTACT OWNS A 2018 CHEVROLET COLORADO. WHILE DRIVING VARIOUS SPEEDS, THE STEERING WHEEL SEIZED AND THE STEERING ASSIST WARNING INDICATOR ILLUMINATED. THE CONTACT HAD TO USE EXTRA STRENGTH TO OPERATE THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED PERIODICALLY. THE VEHICLE WAS TOWED TO VIC KOENIG CHEVROLET (1040 E MAIN ST, CARBONDALE, IL 62901, (618) 529-1000) WHERE IT WAS DIAGNOSED THAT THERE WAS A LOOSE BOLT IN THE ELECTRIC POWER STEERING SYSTEM. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 9,242.

THE BOTTOM SEAT COVER RETAINING CLIP KEEPS COMING LOOSE ON BOTH THE DRIVER SIDE SEAT AND THE PASSENGER SIDE SEAT, AND CAN START TO TEAR THE SEAT COVER. THIS APPEARS TO HAPPEN WHEN ENTERING OR LEAVING THE VEHICLE. IT CAN BE CLIPPED BACK, BUT QUICKLY COMES LOOSE AGAIN. I HAVE RETURNED IT TO THE DEALER FOR REPAIR; THEY PUT THE CLIP BACK IN PLACE, BUT IT QUICKLY CAME LOOSE AGAIN. I HAVE PUT IT BACK ON AND IT CONTINUES TO COME LOOSE.

TL* THE CONTACT OWNS A 2018 CHEVROLET COLORADO. THE CONTACT STATED THAT THE VEHICLE'S WINDSHIELD WAS REPLACED THREE TIMES DUE TO CRACKS FROM TINY STONES. MCCARTHY CHEVROLET (675 N RAWHIDE, OLATHE, KS 66061, (913) 324-7200) STATED THAT THE WINDSHIELD WAS NOT COVERED UNDER WARRANTY UNLESS AUTHORIZED BY THE MANUFACTURER. THE MANUFACTURER WAS CONTACTED AND PROVIDED A CASE NUMBER, BUT DID NOT GUARANTEE THAT THE GLASS WOULD BE FOUND DEFECTIVE. THE CONTACT WAS CONSIDERING REPLACING THE WINDSHIELD WITH AN AFTERMARKET WINDSHIELD. THE FAILURE MILEAGE WAS 1,500. *DT*JB

UPON ACCELERATING THE VEHICLE ONTO A 3 LANE ROAD, ALL WARNING LIGHTS CAME ON IN THE VEHICLE. A WARNING MESSAGE PRESENTED ON THE DASHBOARD STATING "ENGINE POWER REDUCTION" AND THEN THE VEHICLE SHUT DOWN COMPLETELY WHILE MOVING. THE ENGINE SHUT OFF AND THE VEHICLE WOULD NOT DISENGAGE FROM PARK. VEHICLE HAD TO BE TOWED FROM THE LOCATION. AT THE DEALERSHIP, THE DEALER INFORMED ME THE ENGINE THROTTLE BODY AND INTAKE TUBE DUCT HOSE SHOULD BE REPLACED. HE ALSO INFORMED ME GM IS AWARE OF THIS ISSUE WITH THE VEHICLE AND HAS NOT DEVELOPED A PERMANENT FIX FOR THE ISSUE.

TL* THE CONTACT OWNS A 2018 CHEVROLET COLORADO. THE CONTACT STATED THAT THE DIMMER SWITCH DID NOT ACTIVATE WHEN THE VEHICLE WAS IN MOTION. THE CONTACT STATED THAT THE INTERIOR LIGHTING WAS BRIGHT AND IMPAIRED HIS VISION WHILE DRIVING AT NIGHT. IN THE DAYTIME, THE LIGHTS ON THE INSTRUMENT PANEL WERE TOO DIM AND PREVENTED THE CONTACT FROM SEEING THE INSTRUMENT PANEL DISPLAY. THE VEHICLE WAS TAKEN TO BRUCE CHEVROLET (1084 SW OAK ST, HILLSBORO, OR 97123, (503) 388-4240) WHERE IT WAS DIAGNOSED THAT THE DIMMER LIGHTS FAILED DUE TO A SHORT IN THE COMPUTER SYSTEM. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 50. *TT

MAY 2018, MY WIFE AND I NOTICED AN OBNOXIOUS ODOR COMING FROM AC AFTER STARTUP AND BELIEVE AN AC ISSUE AS STARTS BLOWING COLD THEN WARM/HUMID THEN BACK COLD & IT PUTS OUT A MUSTY? SMELL THE SMELL GOES AWAY, BUT AFTER I HAVE STOPPED AND THEN RESTARTED TRUCK AFTER A COUPLE MINUTES AND DRIVE A COUPLE MORE MINUTES THE ODOR AGAIN PRESENTS ITSELF. IN JUNE TOOK THE TRUCK IN FOR SERVICE AND THEY SPRAYED THE AIR FILTER WITH A DISINFECTANT(?). THAT JUST MASKED THE SMELL FOR A DAY OR TWO, BUT THE ODOR STILL PRESENT. THE SERVICE TECH WAS NOT BEEN ABLE TO REPLICATE THE ISSUE. THIS IS STILL OCCURRING AND WE HAVE NOTICED THAT THE ODOR OCCURS WHEN USING HEAT TOO. INFORMED SERVICE ADVISOR IN DECEMBER WHEN TRUCK IN FOR WORK. ISSUE OF ORDER STILL CAN NOT BE REPLICATED.

5/20/18 AC ISSUES -- STARTS BLOWING COLD THEN WARM/HUMID THEN BACK COLD. INFORM SERVICE ADVISOR WHEN TOOK TRUCK IN (6/18/18) FOR SERVICE. TECH NOT FIND AC ISSUE. 8/7/18 TRUCK IN AGAIN -- AC STARTS BLOWING COLD AIR THEN PUTS OUT WARM/HUMID AIR THEN BACK TO COLD AIR. -- TEMP IS SET 72 AND OUTSIDE IS 85 - WHY DO I HAVE TO PUT ON AUTO TO GET COLD AIR TO BLOW OUT OR ADJUST DOWN TO GET? WHY ON AUTO IT WANTS TO FREEZE US AT 72 AND TEMP HAS TO BE ADJUSTED UP? TECH MONITOR DOORS WITH AC RUNNING & WERE WORKING AS DESIGNED -- NOTE THEY REPORT WAM TO COLD - NOT COLD TO WARM TO COLD AS I REPORTED. WELL THE ISSUE STILL HOLDS AND THE TRUCK'S CLIMATE CONTROL (BLENDING PROCESS) HAS AS ISSUE IN GETTING THE TEMP ADJUSTED ON STARTUP. 2/18/19 - ON MY DRIVE YESTERDAY WITH MY WIFE, TRUCK TEMP SET AT 74 AND OUTSIDE TEMP WAS 54 AND 40 MINUTES INTO DRIVE THE VEHICLE FOGGED UP THE SIDE WINDOWS AND I HAD TO TURN ON DEFROST. THEN THAT EVENING AS TEMP HAD DROPPED, WHEN TURNED ON TRUCK IT BLEW HOT THEN COLD THEN BACK TO HOT. THE BLENDING THAT THE SYSTEM IS DOING IS NOT WORKING CORRECTLY. NEED TO GO BACK TO THE MANUAL AC/HEAT CONTROL!

I WAS DRIVING SLOWLY AROUND 3 MPH ON A NATIONAL FOREST SERVICE ROAD WHEN SUDDENLY THE SIDE CURTAIN AIRBAGS WENT OFF AND SEATBELTS LOCKED. THE TRUCK WAS IN 4WD LOW AND OFF ROAD MODE WAS ACTIVE. THERE WAS NO REASON FOR THESE AIRBAGS TO HAVE GONE OFF.

WHILE DRIVING HOME, YELLOW CHECK ENGINE LIGHT CAME ON & I NOTICED REDUCTION OF OIL PRESSURE. PARKED IN DRIVEWAY, SHUT OFF ENGINE, WENT INSIDE. UPON RETURNING, NOTICED SIGNIFICANT AMOUNT OF OIL ON DRIVEWAY. DIPSTICK SHOWED NO OIL. TOWED TO DEALERSHIP. THEY VERIFIED LEAKING CAME FROM DEFECTIVE OIL COOLER LINE HOSE. WAITED SEVERAL DAYS FOR REPLACEMENT PART. THIS IS A NEW 2018 COLORADO Z71 WITH ONLY 5K MILES ON ENGINE. AND, THIS IS A SYSTEMIC PROBLEM THAT GM HAS KNOWN ABOUT SINCE 2015 AND IMPACTS BOTH COLORADO AND CANYON MODELS (THERE ARE SEVERAL COMPLAINTS ON WEB). THIS IS A DANGEROUS PROBLEM AND SHOULD BE INVESTIGATED BEFORE SOMEONE GETS HURT. IT WAS NOT A SLOW LEAK. OBVIOUSLY, IT IS MANUFACTURING PROBLEM. ADDITIONAL INFORMATION (INVOICE AND PICTURES) AVAILABLE UPON REQUEST.

I WAS DRIVING ON SAND AND THE SIDE CURTAIN AIRBAGS DEPLOYED WITHOUT CAUSE, ALONG WITH THE SEAT BELT PRETENSIONERS.

TRANSMISSION HAS HORRIBLE SHIFTING. HARD SHIFTING AT LOW SPEEDS AND WHEN DECELERATING (FEELS LIKE I WAS REAR ENDED). TORQUE CONVERTER WAS REPLACED. FROM LOW SPEED, IT DOESN'T DOWNSHIFT TO ACCELERATE UNLESS THE PEDAL IS FLOORED. ALSO, THERE IS HESITATION/PEDAL LAG FROM A STANDSTILL, WHICH MAKES IT UNPREDICTABLE WHEN TRYING TO PULL INTO TRAFFIC. THAT PART IS A REAL SAFETY CONVERN.

TL* THE CONTACT OWNS A 2018 CHEVROLET COLORADO. WHILE DRIVING VARIOUS LOW SPEEDS AT NIGHT, THE BACK UP CAMERA MONITOR BECAME TOO BRIGHT FOR THE CONTACT TO SEE PROPERLY WHILE REVERSING THE VEHICLE. IN ADDITION, AT NIGHT, THE BACK UP CAMERA ILLUMINATED THE CABIN OF THE VEHICLE AND THE CONTACT COULD NOT SEE THE ROAD. HIDAY MOTORS IN BLUFFTON, INDIANA WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 1.

I HAD TRUCK STATIONARY PARKED ON A SLIGHT INCLINE ON A DIRT ROAD FOR ABOUT 5 MINUTES WHEN I HEARD A ODD SOUND LIKE "ARRRRR CLUNK" AND MY CAR ROLLED DOWN A HILL. I HAD MY CAR ON PARK WHILE ON 4LOW WITH THE ENGINE OFF. I DID NOT HAVE MY PARKING BRAKE ON THOUGH BUT THE INCLINE WAS SO SLIGHT I FEEL I DID NOT NEED IT. MY TRUCK WAS NOT LOADED WITH ANY EXTRA WEIGHT OR ANYTHING TO CAUSE IT TO ROLL DOWN THE HILL. I TRULY BELIEVE I AM NOT AT FAULT FOR THIS HAPPENING IT IS A BRAND NEW CAR HOW COULD THIS HAPPEN? PRIOR TO THIS I WAS NOT DOING ANYTHING EXTREME TO DAMAGE MY CAR IN ANY WAY. SOMETHING MUST HAVE FAILED ON MY TRUCK.

THE DISPLAY FOR THE BACKUP CAMERA IS ON AT FULL BRIGHTNESS. THERE IS A CONTROL KNOB TO DIM THE INTERIOR LIGHTING AND DISPLAY, BUT WHEN THE VEHICLE IS PUT INTO REVERSE, THE DISPLAY GOES TO FULL BRIGHTNESS AND CANNOT BE CONTROLLED BY THE BRIGHTNESS CONTROL KNOB. AT NIGHT, THE PASSENGER SIDE MIRROR IS NOT USEABLE SINCE THE BACKUP DISPLAY IS SO BRIGHT. THIS ALMOST RESULTED IN ACCIDENTS WHEN BACKING UP INTO A PARKING SPOT.