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ProblemsByVin File / 2017-CADILLAC-CT6
2017 · cadillac

cadillac CT6 problems

1 safety recall. 25 owner complaints. We mapped every trouble spot before you sign the papers.

0 5 10
Reliability score
8.2 / 10

Solid reliability overall. Common issues are concentrated in a few systems.

0
Critical
1
Severe
0
Moderate

Top trouble spots 2 categories with 3+ complaints

powertrain
16 reports · avg $2,500
moderate
electrical
3 reports · avg $850
moderate

What owners are saying recent NHTSA-filed complaints · verbatim

2017 CT6 · body
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…
12/03/2018 · NHTSA ODI #11155667.0
2017 CT6 · other
My CT6 had a default engine light on,.Dealer reports broken EVAP line.Car has never been in an accident or damaged.Upon inquiry dealer reports no issues known to them with this problem.However ,this same vehicle had transmission issue when purchased new and the dealer stated…
11/21/2025 · NHTSA ODI #11700820.0
2017 CT6 · powertrain
These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and…
11/21/2024 · NHTSA ODI #11626548.0
2017 CT6 · powertrain
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…
10/21/2019 · NHTSA ODI #11270009.0

Estimate your repair exposure

Drag to your current mileage. Numbers are derived from this vehicle's complaint history.

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Active recalls showing 1 of 1

severe NHTSA 21V759000 29/09/2021

General Motors, LLC (GM) is recalling certain 2016-2017 Cadillac CT6 vehicles

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

Fix: 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.

Common questions

Is the 2017 Cadillac CT6 reliable?

Mostly yes. With a reliability score of 8.2 out of 10 based on 25 owner complaints filed with NHTSA, the 2017 Cadillac CT6 is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.

What's the most common problem on the 2017 Cadillac CT6?

Based on NHTSA records, the most-reported issue is powertrain, with 16 complaints filed. Average repair cost runs about $2,500 at an independent shop.

What's the most expensive thing that goes wrong?

The powertrain is one of the costlier repair items. Average repair cost runs about $2,500 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.

How do I check if my Cadillac CT6 has open recalls?

Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.

Is an extended warranty worth it on a 2017 Cadillac CT6?

Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 25 complaints on file and the costliest repair averaging $2,500, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.

Related vehicles

Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database, last synced 14 hours ago. Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics. We are not affiliated with cadillac. Some links on this page are affiliate links and we may earn a commission if you complete a quote or purchase.
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