2017 Cadillac CT6 Problems, Recalls & Reliability
Verdict
GoodComplaint Index
25/100
#4 most-complained of 5 CT6 years
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
The 2017 Cadillac CT6 has a Complaint Index of 25, ranking 4th out of 5 model years — better than 2016, 2019, and 2020, but behind 2018. NHTSA lists 17 complaints and 1 recall, with transmission and powertrain issues making up 59% of complaints.
- Complaints
- 17
- Recalls
- 1
- Crashes / fires
- 0 / 0
- Injuries / deaths
- 0 / 0
- NHTSA overall rating
- Not rated
- EPA combined MPG
- 23
- 20 city / 28 hwy
Top 2017 Cadillac CT6 problems
NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.
- Transmission & Powertrain10 (59%)
- Electrical System4 (24%)
- Engine3 (18%)
- Brakes2 (12%)
- Suspension, Wheels & Tires2 (12%)
- Collision Avoidance & Cameras1 (6%)
- Fuel System1 (6%)
- Other1 (6%)
- Steering1 (6%)
- Structure & Body1 (6%)
What owners report
- Owners report the 8-speed automatic transmission shudders, lags, and slips, sometimes with a humming noise, especially when merging or accelerating from low speed.
- Some describe the vehicle jerking hard when auto stop disengages, feeling like a rear-end collision when moving off from a stop.
- One owner reported the steering rack bound up and power assist failed, making the vehicle difficult to control and causing it to leave the roadway.
- A sunroof reportedly shattered while driving at highway speed with no impact.
- Brake complaints include a squealing noise that grew louder over time and side mirrors not tilting when reversing.
2017 Cadillac CT6 recalls
1 NHTSA recall campaign list this model year.
- NHTSA 21V759000Sep 29, 2021Electrical System181 vehicles
Exterior lighting:headlights
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.
2017 Cadillac CT6 fuel economy and fuel cost
- City
- 20 MPG
- Highway
- 28 MPG
- Combined
- 23 MPG
- Annual fuel cost (EPA)
- $3,150
- 15,000 mi/yr
- Fuel
- Premium
- Current regular gas
- $4.32/gal
- national avg.
EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.
2017 compared with other CT6 years
Frequently asked questions
- What problems does the 2017 Cadillac CT6 have?
- NHTSA lists 17 complaints for the 2017 CT6, with transmission and powertrain issues accounting for 59% of them, followed by electrical system complaints at 24% and engine complaints at 18%.
- Is the 2017 Cadillac CT6 a good year?
- Yes, relative to other CT6 years. It has a Complaint Index of 25 and ranks 4th out of 5 years, earning a 'Good' verdict, though 2018 scores better with an index of 0.
- Does the 2017 Cadillac CT6 have any recalls?
- Yes, one recall (campaign 21V759000) covers excessively bright Park/Position lights on 2016-2017 CT6 vehicles; the remedy is installing headlight jumper harnesses at no charge.
- At what mileage do 2017 CT6 problems usually appear?
- The median mileage at failure across all reported issues is 10,000 miles, with transmission and engine complaints both showing a median of 6,000 miles.