Model year guide

2017 Cadillac CT6

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2017 Cadillac CT6 is worth — from official NHTSA and EPA data. 21 on record.

2017 Cadillac CT6 — representative photo
Representative photo · via Wikimedia Commons

2017 Cadillac CT6 at a glance

Safety recalls1
Owner complaints26
Combined25 mpg
Typical price$31,986

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2017 Cadillac CT6 recalls 1

Exterior Lighting:headlights NHTSA Campaign #21V759000 · manufacturer #N162016079 · 29/09/2021

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."

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.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2017 Cadillac CT6 common problems

The most-reported problem areas across all 26 owner complaints filed with NHTSA — and what to check before you buy.

Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Vehicle Speed Control
Test cruise control and throttle response, and watch for any hesitation or unintended acceleration.
Structure
Inspect for rust, fresh undercoating, mismatched paint, uneven panel gaps and any sign of prior collision or frame repair.
Service Brakes
Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.

2017 Cadillac CT6 MPG & running costs

Combined25 mpg
City22 mpg
Highway30 mpg
Est. annual fuel cost$3,300
EPA size classLarge Cars
TransmissionAutomatic (S8)
Forced inductionTurbocharged
Passenger volume110 cu ft
Cargo volume15 cu ft
5-yr fuel cost vs average new car$4,500 more

Source: U.S. EPA / DOE fueleconomy.gov.

What's a 2017 Cadillac CT6 worth?

Low
$27,984
Typical price
$31,986
High
$39,491

From 7 comparable 2017 Cadillac CT6 listings.

Estimated 5-year cost to own

A rough guide to what running a 2017 Cadillac CT6 costs over five years and 75,000 miles.

Fuel (5 yrs)$16,500
Fuel only$16,500
Per mile$0.22

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
203.9 in
Width
74.0 in
Height
57.9 in
Wheelbase
122.0 in
Curb weight
3,646–4,385 lb
Front track
64.2 in
Rear track
65.0 in

Manufacturer-reported figures for the 2017 Cadillac CT6 — ranges cover the 5 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

Manufacturer service bulletins 1317

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 1317.

This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

Bulletin PIT5698F · Sep 2026

This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering

Bulletin PIP5700H · Sep 2026

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

Bulletin PIP4902W · Sep 2026

PI to help diagnose A/C concern

Bulletin PIT5099J · Jul 2026

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

Bulletin PIT3271Q · Apr 2026

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

Bulletin PIP6104 · Mar 2026

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

Bulletin PIP4902V · Mar 2026

This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering

Bulletin PIP5700G · Jan 2026

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

Bulletin PIP4902U · Jan 2026

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General M…

Bulletin PIT5214G · Nov 2025

Source: NHTSA Office of Defects Investigation, listed for the CT6 AWD. Model-year data, not specific to one car.

Canadian recalls 1

Transport Canada recall campaigns for the 2017 Cadillac CT6. Relevant if the car was first sold in, or imported from, Canada.

Powertrain

Certain vehicles fail to comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 210.2 - Lower Universal Anchorage Systems for Restraint Systems and Booster Seats. A small amount of structural adhesive may have been inadvertently applied to the child seat anchorage bar during the assembly process. If this condition is present, the child seat would not be ab…

Transport Canada #2018348 · Jun 2018

Source: Transport Canada Motor Vehicle Safety Recalls Database.

About the Cadillac CT6

The Cadillac CT6 is a full-size luxury car manufactured by Cadillac starting in 2016 over two generations.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

2017 Cadillac CT6 trims & engines on record

Trims
Luxury · Platinum
Engines
3.6L 6-cyl · 3.0L 6-cyl

2017 Cadillac CT6 vehicles on record

Other Cadillac CT6 model years

2017 Cadillac CT6 — frequently asked questions

Does the 2017 Cadillac CT6 have any safety recalls?

NHTSA lists 1 recall campaign for the 2017 Cadillac CT6. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 2017 Cadillac CT6?

Across all 26 owner complaints filed with NHTSA, the most-reported problem areas are power train, electrical system, vehicle speed control.

What gas mileage does the 2017 Cadillac CT6 get?

The 2017 Cadillac CT6 has a U.S. EPA estimate of 25 mpg combined (22 city / 30 highway).

How much is a 2017 Cadillac CT6 worth?

Comparable 2017 Cadillac CT6 listings run roughly $27,984–$39,491, typically around $31,986 (from 7 vehicles).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.