CADILLAC CT6 · model year

2016 CADILLAC CT6

15 NHTSA complaints, 5 crash reports, and 3 active recalls for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2016CADILLACCT6 carries 15 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 5 crashes, 0 fires, 2 injuries, and 1 fatality. For crash performance, NHTSA's New Car Assessment Program gave this cohort an overall Not Rated/5 rating, with Not Rated/5 front crash, Not Rated/5 side crash, and Not Rated/5 rollover scores derived from standardized barrier and dynamic tests.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2016 CT6 is power train with 6 filings, followed by unknown or other (2) and engine (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 3 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.

NHTSA currently has 10 investigation files overlapping the 2016 CT6, and 1 remain open. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

15
Complaints
5
Crashes
0
Fires
2
Injuries
1
Deaths

Total Complaints

15 filings

Crashes Reported

5 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

NHTSA NCAP overall: Not Rated/5 — Not rated · Front: Not Rated/5 · Side: Not Rated/5 · Rollover: Not Rated/5

Complaints by Component

ComponentCount
POWER TRAIN6
UNKNOWN OR OTHER2
ENGINE2
AIR BAGS2
SUSPENSION1
WHEELS1
FUEL/PROPULSION SYSTEM1

Recalls (3)

21V75900029/09/2021

EXTERIOR LIGHTING

General Motors, LLC (GM) is recalling certain 2016-2017 Cadillac CT6 vehicles. The Park/Position lights may be excessively bright. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment.

18V43700028/06/2018

SEATS:MID/REAR ASSEMBLY

General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CT6 vehicles. The inboard child seat anchorage bars may have had excess structural adhesive applied during assembly, which can interfere with the installation of a child seat. As such, these vehicles fail to comply with the requiremen

16V68700023/09/2016

SEAT BELTS:FRONT:WEBBING

General Motors LLC (GM) is recalling certain model year 2016 Cadillac CT6 vehicles manufactured July 21, 2016, to July 22, 2016. The bolt that connects the front passenger seat belt webbing to the seat's anchor plate may be missing. Without the bolt, the seat belt webbing may detach from the seat

Recent Complaints

20251020CrashFatalAIR BAGS

The contact's husband owned a 2016 Cadillac CT6. The contact stated that while her husband was making a left turn, the vehicle was struck on the front passenger side by another vehicle. The contact stated that her husbands air bag did not deploy. Medical attention was needed, and the contact's husband was transported to the hospital, where he succumbed to his injuries. A police report was taken. The vehicle was towed to the tow lot, where it was deemed a total loss. The contact stated that there were no additional injuries. The manufacturer was not yet notified of the incident. The failure mileage was unknown.

20250808ENGINE

The turbo boost failed cylinder 2 ( after being repaired ) continues to show issues

20250331POWER TRAIN

I am experiencing recurring transmission and drivability issues with my 2016 Cadillac CT6. 1.Rough Shifting: When shifting from park to reverse, the transmission shifts roughly, causing a noticeable jolt throughout the vehicle. 2.Fluid Leakage: I have observed fluid leaking from underneath the car when parked in my driveway. However, the leak is inconsistent—it disappears for a few days after rain or washing my driveway but then reappears under similar conditions. 3.Delayed Shifting: When accelerating from a stoplight, there is a delay before the transmission engages, causing hesitation before the car moves forward. 4.Automatic Start-Stop Issue: The vehicle has an automatic engine shut-off feature that activates when stopping at a light. When I take my foot off the brake, the engine restarts abruptly, causing a harsh jerk that shakes the entire car. This makes it feel like the transmission or another component is not engaging smoothly. 5.Check Engine Light Issue: The check engine lig

20250202POWER TRAIN

The car keep losing power pressure when driving it's jerk when put into gear

20240415POWER TRAIN

The contact owns a 2016 Cadillac CT6. The contact stated that while in reverse, the vehicle accelerated inadvertently. The brake pedal was depressed to stop the vehicle. Additionally, the contact stated while driving between 30-45 MPH on several occasions, the gears shifted, and the vehicle jolted forward. Additionally, that contact stated that the vehicle was constantly shaking. The vehicle was taken to a dealer where the failure was first not able to be duplicated. The vehicle was taken to another dealer for the third time where it was diagnosed that an unknown harness needed to be replaced. The vehicle was repaired, but the failure recurred a month later. The manufacturer was notified of the failure and a complaint was filed. The failure mileage was approximately 19,000.

Mileage: 19,000

20230804POWER TRAIN

Approximately in November 2022, I was driving my 2016 Cadillac CT6. While operating at a normal speed of 40 mph, while in traffic the vehicle began to hesitate and a loss of power. The vehicle was towed to Waldorf Cadillac & Chevrolet. The vehicle was diagnosed with a transfer case issue. The vehicle in the repair shop for approximately 4 months. I retrieve my vehicle in February 2023, with a brand-new Transfer Case with a price tag of $2,200.00. On Thursday, August 3, 2023, I managed to drive the vehicle back to Waldorf Cadillac & Chevrolet to have to vehicle repaired. The vehicle is doing the same thing it was doing , when the vehicle was previously in the Repair Shop. The Technician informed me that Cadillac recommend the fluid in the transmission be changed to a high-performance fluid. This recommendation was issued to the dealers several months ago. Now the dealer is charging me approximately $1,000.00 for Transmission Fluid. I asked the Technician why the problem was

20230804FUEL/PROPULSION SYSTEM

Approximately in November 2022, I was driving my 2016 Cadillac CT6. While operating at a normal speed of 40 mph, while in traffic the vehicle began to hesitate and a loss of power. The vehicle was towed to Waldorf Cadillac & Chevrolet. The vehicle was diagnosed with a transfer case issue. The vehicle in the repair shop for approximately 4 months. I retrieve my vehicle in February 2023, with a brand-new Transfer Case with a price tag of $2,200.00. On Thursday, August 3, 2023, I managed to drive the vehicle back to Waldorf Cadillac & Chevrolet to have to vehicle repaired. The vehicle is doing the same thing it was doing , when the vehicle was previously in the Repair Shop. The Technician informed me that Cadillac recommend the fluid in the transmission be changed to a high-performance fluid. This recommendation was issued to the dealers several months ago. Now the dealer is charging me approximately $1,000.00 for Transmission Fluid. I asked the Technician why the problem was

20230804UNKNOWN OR OTHER

Approximately in November 2022, I was driving my 2016 Cadillac CT6. While operating at a normal speed of 40 mph, while in traffic the vehicle began to hesitate and a loss of power. The vehicle was towed to Waldorf Cadillac & Chevrolet. The vehicle was diagnosed with a transfer case issue. The vehicle in the repair shop for approximately 4 months. I retrieve my vehicle in February 2023, with a brand-new Transfer Case with a price tag of $2,200.00. On Thursday, August 3, 2023, I managed to drive the vehicle back to Waldorf Cadillac & Chevrolet to have to vehicle repaired. The vehicle is doing the same thing it was doing , when the vehicle was previously in the Repair Shop. The Technician informed me that Cadillac recommend the fluid in the transmission be changed to a high-performance fluid. This recommendation was issued to the dealers several months ago. Now the dealer is charging me approximately $1,000.00 for Transmission Fluid. I asked the Technician why the problem was

20230325POWER TRAIN

Vehicle has sudden violent forward Jerking motion at stops, delayed performance when accelerating ,hard shifting when changing gears, clunking noise when shifting into low gear

20210415CrashAIR BAGS

VEHICLE INVOLVED IN A SEVERE ACCIDENT, AIRBAGS DID NOT DEPLOY. THE VEHICLE WAS IN MOTION ON A HWY. VEHICLE WAS STRUCK BY ONCOMING TRAFFIC AND THEN LAUNCHED INTO A DITCH. NONE OF THE AIRBAGS DEPLOYED DURING THE INCIDENT.

Mileage: 58,000

20200825ENGINE

WHEN I AM TURNING UNDER 25 MPH, I ACCELERATE AND THERE IS A DELAY AND A DRAG BEFORE THE VEHICLE STARTS TO ACCELERATE. IF I DO NOT ALLOW ROOM, I COULD GET HIT BECAUSE THERE IS A DELAY. VERY DANGEROUS. ALMOST FEELS LIKE A VACUUM ISSUE.

Mileage: 16,500

20181101POWER TRAIN

CAR WILL NOT RESPOND FOR AT LEAST 2 SECONDS DURING A SLOW, ROLLING STOP, WHEN TRYING TO ACCELERATE AGAIN. UNABLE TO PERFORM EVASIVE MANUEVER, IF NEEDED, SECONDARY TO THE DELAY TO ACCELERATOR INPUT. HARSH 2-1 DOWNSHIFTS ALSO AT SLOW SPEEDS AND CAN EVEN FEEL AS THOUGH YOU WERE STRUCK FROM BEHIND. HIGHWAY DRIVING IS EXCELLENT; CITY DRIVING CHALLENGING WITH THE TRANSMISSION. THE DRIVER HAS TO LEARN HOW TO DRIVE THIS VEHICLE. FIND IT VERY UNUSUAL AFTER OWNING 5 OTHER CADILLACS AND NEVER HAD THIS PROBLEM. I BOUGHT THIS CAR AS A PRE-OWNED CERTIFIED VEHICLE FROM CADILLAC DEALER. THE CAR HAD 650 MILES ON IT AND I TRULY BEATIFUL/SHOWROOM CONDITION. I HAD THE TRANSMISSION RE-FLASHED, WHICH PROVIDED PERHAPS A 1-2 DAYS RELIEF. I WILL CONTINNUE TO PERSUE WITH DEALER, BUT WANTED YOU GUYS TO BE AWARE. CADILLAC SHOULD FIX THE PROBLEM; NEW/DIFFERENT TYPE OF TRANSMISSION OR RE-WORK THE 8L45/8L90'S WITH DIFFERNET VLAVES/SOFTWARE OR BUY IT BACK FROM ME.

Mileage: 750

20180510CrashSUSPENSION

THIS CAR HAS SAFETY ISSUES. I PURCHASED A YEAR AGO. THE AXLE AND WHEEL BROKE OFF IN ON THE CAR WITHIN 30 DAYS. THE CAR HAS HUGE MANUFACTURER BREAKDOWN. IT WOULDN'T START DIDN'T CARE WHAT GEAR IT WAS IN IT WAS ROLLING AND ALMOST RAN OVER MY FRIEND AND RAN OFF INTO A DITCH. I HAVE HAD SEVERAL ACCIDENTS IN CAR DUE TO THE REAR SUSPENSION. SHAKING. I BROUGHT IT IN AND NO ONE CAN SEEM TO DUPLICATE IT. BOTH TIRES HAVE BLOW OFF THIS 2016 CT6 WITH 23K MILES ON IT I BOUGHT IT WITH 26 MILES ON IT 100K WARRANTY NO DEDUCTIBLE, SCRATCH DENT AND DING REPAIR AND GMAC OR FRANK KENT WHERE I PURCHASE THE CAR NO WILL THE DEALERS. I BOUGHT THE EXTRA CONTRACTS FOR ARE BLOWING ME OFF. THIS IS RIDICULOUS THE CAR IS IN THE SHOP NOW B/C IT TORE OFF BOTH MIRRORS BACKING INTO GARAGE. I HAVE NO SIDE MIRROR. THE CAR WAS DRIVING ITSELF THEY CORRECT IS SELF AND BACKED INTO WALL. BLOWOUT OF NEW TIRES, NAVIGATION'S ISSUE TELLING ME TO GO TO THE WRONG PLACES BUT SCREEN SHOWS SOMETHING ELSE. HAVING TO CALL ONSTAR JUST TO

Mileage: 2,300

20180510CrashWHEELS

THIS CAR HAS SAFETY ISSUES. I PURCHASED A YEAR AGO. THE AXLE AND WHEEL BROKE OFF IN ON THE CAR WITHIN 30 DAYS. THE CAR HAS HUGE MANUFACTURER BREAKDOWN. IT WOULDN'T START DIDN'T CARE WHAT GEAR IT WAS IN IT WAS ROLLING AND ALMOST RAN OVER MY FRIEND AND RAN OFF INTO A DITCH. I HAVE HAD SEVERAL ACCIDENTS IN CAR DUE TO THE REAR SUSPENSION. SHAKING. I BROUGHT IT IN AND NO ONE CAN SEEM TO DUPLICATE IT. BOTH TIRES HAVE BLOW OFF THIS 2016 CT6 WITH 23K MILES ON IT I BOUGHT IT WITH 26 MILES ON IT 100K WARRANTY NO DEDUCTIBLE, SCRATCH DENT AND DING REPAIR AND GMAC OR FRANK KENT WHERE I PURCHASE THE CAR NO WILL THE DEALERS. I BOUGHT THE EXTRA CONTRACTS FOR ARE BLOWING ME OFF. THIS IS RIDICULOUS THE CAR IS IN THE SHOP NOW B/C IT TORE OFF BOTH MIRRORS BACKING INTO GARAGE. I HAVE NO SIDE MIRROR. THE CAR WAS DRIVING ITSELF THEY CORRECT IS SELF AND BACKED INTO WALL. BLOWOUT OF NEW TIRES, NAVIGATION'S ISSUE TELLING ME TO GO TO THE WRONG PLACES BUT SCREEN SHOWS SOMETHING ELSE. HAVING TO CALL ONSTAR JUST TO

Mileage: 2,300

20180510CrashUNKNOWN OR OTHER

THIS CAR HAS SAFETY ISSUES. I PURCHASED A YEAR AGO. THE AXLE AND WHEEL BROKE OFF IN ON THE CAR WITHIN 30 DAYS. THE CAR HAS HUGE MANUFACTURER BREAKDOWN. IT WOULDN'T START DIDN'T CARE WHAT GEAR IT WAS IN IT WAS ROLLING AND ALMOST RAN OVER MY FRIEND AND RAN OFF INTO A DITCH. I HAVE HAD SEVERAL ACCIDENTS IN CAR DUE TO THE REAR SUSPENSION. SHAKING. I BROUGHT IT IN AND NO ONE CAN SEEM TO DUPLICATE IT. BOTH TIRES HAVE BLOW OFF THIS 2016 CT6 WITH 23K MILES ON IT I BOUGHT IT WITH 26 MILES ON IT 100K WARRANTY NO DEDUCTIBLE, SCRATCH DENT AND DING REPAIR AND GMAC OR FRANK KENT WHERE I PURCHASE THE CAR NO WILL THE DEALERS. I BOUGHT THE EXTRA CONTRACTS FOR ARE BLOWING ME OFF. THIS IS RIDICULOUS THE CAR IS IN THE SHOP NOW B/C IT TORE OFF BOTH MIRRORS BACKING INTO GARAGE. I HAVE NO SIDE MIRROR. THE CAR WAS DRIVING ITSELF THEY CORRECT IS SELF AND BACKED INTO WALL. BLOWOUT OF NEW TIRES, NAVIGATION'S ISSUE TELLING ME TO GO TO THE WRONG PLACES BUT SCREEN SHOWS SOMETHING ELSE. HAVING TO CALL ONSTAR JUST TO

Mileage: 2,300

Compare 2016CADILLACCT6 to Similar Vehicles

NHTSA Investigations 1 Open

View all investigations

Frequently Asked Questions

How many complaints does the 2016 CADILLAC CT6 have?
The 2016 CADILLAC CT6 has 15 NHTSA complaints, 5 crashes, 0 fires, 2 injuries, and 1 deaths reported.
What is the safety rating for the 2016 CADILLAC CT6?
The 2016 CADILLAC CT6 received an overall NHTSA safety rating of Not Rated/5, front crash rating of Not Rated/5, side crash rating of Not Rated/5, and rollover rating of Not Rated/5.
Are there any recalls for the 2016 CADILLAC CT6?
Yes, the 2016 CADILLAC CT6 has 3 recall(s). The most common affected component is EXTERIOR LIGHTING. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2016 CADILLAC CT6?
The most-complained component for the 2016 CADILLAC CT6 is POWER TRAIN with 6 complaints. Other frequently reported areas include UNKNOWN OR OTHER and ENGINE.
Is the 2016 CADILLAC CT6 safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. The 2016 CADILLAC CT6 has an NHTSA safety rating of Not Rated/5. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.