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.
The worst 2016 Cadillac CT6 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Transmission6
- Airbags2
- Engine2
- Fuel system1
- Suspension1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Transmission6
- Airbags2
- Engine2
- Fuel system1
- Suspension1
- Wheels1
Recalls 3
Exterior lighting: headlights
- What is wrong
- 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."
- Risk
- The excessive brightness may affect the vision of other drivers, increasing the risk of a crash.
- 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.
Recall number 21V759000 · Recall details
Child seat: latch strap
- What is wrong
- 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."
- Risk
- If the child seat cannot be attached correctly to the anchorage bar, there is an increased the risk of injury.
- 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.
Recall number 18V437000 · Recall details
Seat belts: front: webbing
- What is wrong
- 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.
- Risk
- 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.
- 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.
Recall number 16V687000 · Recall details
Technical service bulletins for the 2016 Cadillac CT6 1,372
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- This PI communicates the proper part numbers for transmission connectors and internal harness to prevent...
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
- PI to help diagnose A/C concern
- This preliminary information communicates information about how to determine if a wheel and tires size...
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a...
- This Preliminary Information communication provides information to the technician about vehicles that have...
- This PI Addresses a possible solenoid wiring fault and how to inspect the build date to identify
- This PI advises dealers to inspect for a missing pump gasket if the vehicle exhibits no movement following...
- New Vehicle Monitoring Programs Section in IVH
What 2016 Cadillac CT6 owners say
Most recent owner complaints, unedited.
The turbo boost failed cylinder 2 ( after being repaired ) continues to show issues
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.
The car keep losing power pressure when driving it's jerk when put into gear
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.
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.
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
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.
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.
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.
Compare the 2016 Cadillac CT6
Other model years
Questions about the 2016 Cadillac CT6
Is the 2016 Cadillac CT6 reliable?
Owners have filed 11 complaints about the 2016 Cadillac CT6, close to a typical CT6 model year.
What is the 2016 Cadillac CT6 year score?
The 2016 Cadillac CT6 scores 64 out of 100 (average). The score compares it with the other model years of the Cadillac CT6: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2016 Cadillac CT6?
Transmission and drivetrain, with 6 complaints. Next is airbags (2).
How many recalls does the 2016 Cadillac CT6 have?
3 recalls, covering exterior lighting, child seat and seat belts.
What year does the Cadillac CT6 have bad transmission?
The Cadillac CT6 model years with the most transmission complaints are 2019 (14 complaints) and 2017 (10 complaints).
VIN decoder
See the problems and recalls for an exact car
Buying a used 2016 Cadillac CT6?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history