NHTSA vehicle safety data

2016 Cadillac CT6 Recalls & Complaints

The 2016 Cadillac CT6 has 3 NHTSA recall campaigns and 11 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Cadillac dealer.

NHTSA recall and complaint data for the 2016 Cadillac CT6. Recall data is refreshed daily from NHTSA.

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2016 Cadillac CT6 owner complaints

Owners have filed 11 complaints with NHTSA about the 2016 Cadillac CT6, describing incidents dated February 1, 2018 to September 27, 2025.

Most-cited components

Power Train 6 complaints
Air Bags 2 complaints
Engine 2 complaints
Unknown or Other 2 complaints
Fuel/Propulsion System 1 complaint
Suspension 1 complaint

Of the 11 complaints on file, 3 report a crash; across all 11 complaints, owners report 2 injuries and 1 death (owner-reported, not verified by NHTSA).

Newest complaints

ODI #11694492 · Filed October 20, 2025
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…
ODI #11679344 · Filed August 8, 2025
The turbo boost failed cylinder 2 ( after being repaired ) continues to show issues
ODI #11651834 · Filed March 31, 2025
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…

Read all 11 complaints

Park/Position Lights Too Bright/FMVSS 108

NHTSA #21V759000 · Exterior Lighting · NHTSA notice

Reported September 29, 2021 · General Motors, LLC

Potentially affected: 181 vehicles

Repair completion: 55.97% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign N162016079 · Owners notified November 3, 2021

Defect description

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."

Safety consequence

The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.

Manufacturer remedy

Dealers will install right and left side in-line headlight jumper harnesses, free of charge. Owner notification letters were mailed November 3, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N162016079.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Excess Adhesive on Child Seat Anchor/FMVSS 225

NHTSA #18V437000 · Seats — Mid/Rear Assembly · NHTSA notice

Reported June 28, 2018 · General Motors LLC

Potentially affected: 22,043 vehicles

Repair completion: 92.72% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign 18228 · Owners notified August 3, 2018 · Vehicles built September 4, 2015 – September 21, 2017 (per NHTSA)

Defect description

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 requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."

Safety consequence

If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk of injury.

Manufacturer remedy

GM will notify owners, and dealers will inspect, remove any excess adhesive, and apply anti-corrosion primer to the inboard child seat anchorage bars, free of charge. The recall began August 3, 2018. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 18228.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Missing Bolt may Allow Seat Belt Webbing to Detach

NHTSA #16V687000 · Seat Belts — Front — Webbing · NHTSA notice

Reported September 23, 2016 · General Motors LLC

Potentially affected: 131 vehicles

Repair completion: 99.24% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign 16035 · Owners notified September 24, 2016 · Vehicles built July 21, 2016 – July 22, 2016 (per NHTSA)

Defect description

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 anchor.

Safety consequence

If the seat belt webbing detaches from the seat anchor, the seat belt may not properly restrain the front seat passenger in the event of a crash, increasing the risk of injury.

Manufacturer remedy

GM will notify owners, and dealers will replace the existing front passenger seat belt webbing anchor bolt, or install a bolt if it is missing, free of charge. The recall began on September 24, 2016. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 16035. Note: Owners are advised not to allow an occupant to sit in the front passenger seat until the recall remedy has been performed.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

2016 Cadillac CT6 4DR FWD

—

out of 5

Overall Safety Rating

Not Rated

Frontal Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Pole

Not Rated

Rollover

Not Rated

Safety Technology

Electronic Stability Control Forward Collision Warning (Optional)

2016 Cadillac CT6 4DR AWD

—

out of 5

Overall Safety Rating

Not Rated

Frontal Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Pole

Not Rated

Rollover

Not Rated

Safety Technology

Electronic Stability Control Forward Collision Warning (Optional)

11 owner complaints have been filed with NHTSA for the 2016 Cadillac CT6.

Air Bags

ODI #11694492

Crash 1 injury1 death

Incident: September 27, 2025 · Filed: October 20, 2025

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.

Engine

ODI #11679344

Incident: March 2, 2025 · Filed: August 8, 2025

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

Power Train

ODI #11651834

Incident: February 17, 2025 · Filed: March 31, 2025

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 light came on for a day, but before I could take it to a repair facility, it turned off on its own. Because of this, I was unable to retrieve any diagnostic codes. I am concerned these issues indicate a faulty transmission system or related defect that may worsen over time. I request an investigation into whether this is a common defect in the 2016 Cadillac CT6 and if any recalls or manufacturer repairs are available.

Power Train

ODI #11640230

Incident: January 26, 2025 · Filed: February 2, 2025

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

Power Train

ODI #11583068

Incident: August 20, 2020 · Filed: April 15, 2024

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.

Power Train; Unknown or Other; Fuel/Propulsion System

ODI #11536546

Incident: November 1, 2022 · Filed: August 4, 2023

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 wasn't corrected while previously in the shop. No reply. If Cadillac knows this is the problem, why is the customer being charged for this service, if this will correct the problem. There is 64,000 miles on my vehicle.

Power Train

ODI #11513710

Incident: August 2, 2020 · Filed: March 25, 2023

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

Air Bags

ODI #11408187

Crash 1 injury

Incident: April 11, 2021 · Filed: April 15, 2021

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.

Engine

ODI #11351240

Incident: August 24, 2020 · Filed: August 25, 2020

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.

Power Train

ODI #11144689

Incident: July 31, 2018 · Filed: November 1, 2018

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.

Other Cadillac CT6 model years

Check your 2016 Cadillac CT6 VIN

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