2017 Cadillac CT6 Plug-In Hybrid Owner Complaints

ON MORE THAN THREE OCCASIONS, THIS VEHICLE HAS LOST SUBSTANTIAL OR ALL PROPULSION DUE TO ENGINEERING DESIGN DEFECTS WITH THE GAS/HYBRID ELECTRIC TRANSMISSION SYSTEM. ALL BUT ONE OF THESE SITUATIONS OCCURRED ON A HIGH SPEED FREEWAY CAUSING POTENTIALLY LIFE THREATENING CONDITIONS WHEN THE VEHICLE SUBSTANTIALLY SLOWED OR STOPPED. THIS IS A KNOWN ISSUE AS IS EVIDENCED BY OTHER OWNERS OF THIS VEHICLE REPORTING THE SAME ISSUE AND THE MANUFACTURER FAILING TO HAVE A VIABLE PERMANENT REMEDY. AS OF TODAY'S DATE, 3/4/2020, THE VEHICLE HAS BEEN IN THE SHOP FOR THE PAST 62 OF 92 DAYS AND IS STILL AWAITING REPAIRS. THIS FIRST OCCURRED WHEN THE VEHICLE HAD LESS THAN 10,000 MILES.

NHTSA ID

11316043

Incident

Dec 3, 2019

Mileage

9,759 mi

TL* THE CONTACT OWNS A 2017 CADILLAC CT6. WHEN THE VEHICLE WAS STARTED, IT LURCHED FORWARD WITHOUT WARNING. THE FAILURE OCCURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO GOLD COAST CADILLAC (732-709-2168, LOCATED AT 2123 STATE ROUTE 35, OAKHURST, NJ 07755), BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND REFERRED THE CONTACT BACK TO THE SAME DEALER. THE DEALER PROVIDED A TECHNICAL SERVICE BULLETIN (DOCUMENT ID NUMBER: 4605342 - 16-NA-361: INFORMATION ON TRANSMISSION HARSH 1-2 SHIFT UPON FIRST STARTUP/SHIFT OF THE DAY UNDER LIGHT THROTTLE (JUL. 21, 2017)). THE CONTACT WAS INFORMED THAT THERE WAS NO REMEDY FOR THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 1,700. *LN*JB *JS *BF CONSUMER STATED VEHICLE LURCHED FORWARD AGAIN ON 12/18/19. CAR WAS TAKEN IN FOR SERVICE ON 10/2019.*JB

NHTSA ID

11270009

Incident

Jan 10, 2018

Mileage

1,700 mi

I PURCHASED THE USED 2017 CADILLAC CT6 IN MARCH 2019 WITH 24,192 MILES. IT WAS A CERTIFIED PRE -OWNED CAR BY THE DEALER. ADDITIONALLY I PURCHASED A CPO PROTECTION PLUS PROTECTION PLAN WITH THE CAR. I AM EXPERIENCING PROBLEMS WITH THE TRANSMISSION. DURING ACCELERATION AND DECELERATING THE CAR FEELS A HESITATION FOLLOWED BY A SIGNIFICANT SHAKE, SHUDDER, JERK, CLUNK OR HARD SHIFT. THE AUTO START STOP FEATURE IS NOT WORKING CORRECTLY. WHEN YOU COME TO A LIGHT THE ENGINE WILL TURN OFF AND WHEN IT RESTARTS IT WILL JERK INTO GEAR SO VIOLENT THAT IT FEELS AS THOUGH THE VEHICLE HAS BEEN HIT FROM BEHIND. ADDITIONALLY AT 35, 45, AND 55 MILES PRE HOUR THE VEHICLE MAKES A WHINING NOISE EITHER FROM THE TRANSMISSION OR DIFFERENTIAL. I HAVE HAD THE CAR IN FOR REPAIRS FOUR TIMES AT THE DEALERSHIP WITH NO SUCCESS ON CORRECTING THE PROBLEMS.

NHTSA ID

11255505

Incident

May 22, 2019

Mileage

24,192 mi

HARD SHIFTS IN LOW SPEEDS, INTENSE VIBRATION , SHUDDER THROUGHOUT DRIVING SPEED. CADILLAC DEALER SAID IT IS TORGUE CONVERTER ISSUE, CAR TRANSMISSION NEEDS TO BE FLUID EXCHANGED FOR $800.

NHTSA ID

11246532

Incident

Aug 22, 2019

Mileage

83,000 mi

TL* THE CONTACT OWNS A 2017 CADILLAC CT6. DUE TO THE CHANGES IN THE WEATHER, THE REAR WINDOW HAD A MARBLEIZED HAZE COVER, WHICH MADE VISIBILITY OUT OF THE WINDOW EXTREMELY DIFFICULT. THE VEHICLE WAS TAKEN TO SCHOOLEY CADILLAC (2101 45TH ST, WEST PALM BEACH, FL), BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT NO SOLUTION WAS OFFERED. THE FAILURE MILEAGE WAS 0. *TT VEHICLE PURCHASE DATE SHOULD BE ON OR BEFORE INCIDENT DATE. *JB

NHTSA ID

11155667

Incident

Apr 26, 2017

TRANSMISSION HAS A SIGNIFICATION CLUNK/HESITATION/DELAY SHIFTING UP FROM 1ST-2ND GEAR AND DOWN FROM 2ND-1ST GEAR. IN THE UPSHIFT, THE CAR VIOLENTLY LUNGES FORWARD ONCE THE ACCELERATION REV FROM THE PUSH OF THE PEDAL CATCHES UP WITH THE GEAR SHIFTING, NO MATTER HOW DELICATELY YOU MIGHT PUSH THE PEDAL. FEELS LIKE THE VEHICLE HAS BEEN HIT FROM BEHIND ONCE IT CATCHES. IN THE DOWNSHIFT, UPON BRAKING TO COME TO A STOP, THE CAR PULSATES AND LUNGES FORWARD AS WELL WHICH HAS CAUSED ME TO NEARLY HIT THE CAR IN FRONT OF ME ON SEVERAL OCCASIONS AND IF NO CAR IS IN FRONT OF ME IT HAS CAUSED ME TO CREEP OUT INTO THE INTERSECTION A BIT. THIS HAS HAPPENED REGULARLY SINCE MY ACQUISITION OF THE VEHICLE IN EARLY APRIL 2018 AND THE DEALER HAS REVIEWED AND ADVISED THAT IT SHIFTS JUST FINE.

NHTSA ID

11104282

Incident

Jun 27, 2018

Mileage

51,000 mi

I HAVE HAD ISSUES WITH MY VEHICLE THAT INVOLVES HARD SHIFTING AT TIMES AND ALSO, THE VEHICLE SOMETIMES WILL LURCH QUITE ABRUPTLY. IT ACTUALLY FEELS AS IF THE VEHICLE WAS REAR ENDED. I HAVE TAKEN THE VEHICLE TO THE DEALERSHIP ON 4 OCCASIONS AND THEY WERE ONLY ABLE TO "REPLICATE" THE PROBLEM ONE TIME. THIS HARD SHIFT/LURCHING OCCURS USUALLY WHEN AT A STAND STILL AND, ONCE YOU REMOVE YOUR FOOT FROM THE BRAKE, VEHICLE MAY SHIFT HARD. IT DOESN'T MATTE WHERE I AM; WHETHER ON STREETS OR ON THE FREEWAY. IF VEHICLE IS STOPPED, THEN THIS HAPPENS ON OCCASION. IT DOESN'T MATTER IF I AM USING THE "AUTOHOLD" FEATURE OR NOT BUT IT DOESN'T SEEM TO OCCUR AS OFTEN IF I AM USING THE "SPORT" MODE WHEN DRIVING. THE LAST TIME THIS EVENT OCCURRED, THE DEALERSHIP KEPT THE CAR FOR 3 DAYS AND CLAIMED THAT THEY COULD NOT REPLICATE THE PROBLEM, BUT, I DROVE AWAY AND THE ISSUE OCCURRED WITH ME LESS THAN 2 MILES FROM THE DEALERSHIP. I HAVE 2 GRANDSONS THAT I "TAXI" AROUND AND THEY HAVE BOTH FELT THIS PROBLEM. AS A MATTER OF FACT, ANYONE WHO RIDES IN MY CAR IS AWARE OF THIS PROBLEM BUT, FOR SOME REASON, CADILLAC IS STATING THAT THERE IS NOTHING WRONG WITH THE VEHICLE. THE FIRST TIME THIS OCCURRED WAS ON 9/13/17; AGAIN ON 10/5/17. (TERM USED WAS CCND - CUSTOMER CONCERN NOT DUPLICATED). NOW, ON 11/03/17 THEY DUPLICATED

NHTSA ID

11063627

Incident

Jan 5, 2018

Mileage

7,964 mi

VEHICLE'S TRANSMISSION LURCHES AND SLIPS OUT OF GEAR IN COAST CONDITIONS; DURING TURNS AND IN INTERSECTIONS.

NHTSA ID

11031458

Incident

Sep 5, 2017

Mileage

2,500 mi

LANE DEPARTURE WARNING ALERT DOES NOT WORK

NHTSA ID

11020336

Incident

Jun 14, 2017

Mileage

2,000 mi