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2017 Cadillac CT6

Plug-in hybrid Gas

Large Cars
4 EPA-rated configurations
Data refreshed 2026-10-26

Safety Signal

89 / 100 from the NHTSA recall record

RecallsNHTSA campaigns 2

Complaintsnone reporting a crash, fire or injury 26

Crash ratingnot rated by NHTSA —

Fuel economybest combined, EPA 26 mpg

2020 2019 2018 2017 2016

The 2017 Cadillac CT6 is sold in the U.S. as a plug-in hybrid and gas large sedan with 4 EPA-rated configurations. The most efficient version, the CT6 Plug-In, is EPA-rated at 26 mpg combined. NHTSA lists 2 recall campaigns for this model year, which gives it a Safety Signal grade of B. Owners have filed 26 complaints, most often about the power train.

Cadillac CT6 — photograph via Wikimedia Commons — Cadillac CT6 · Photo: JustAnotherCarDesigner · CC0 · Wikimedia Commons

Specs & fuel economy

Source: EPA fueleconomy.gov

Configuration	Powertrain	Drive	Engine / motor	City	Hwy	Comb	Range	kWh/100mi	Charge (240V)	Annual fuel*
CT6 Plug-In	Plug-in hybrid	RWD	2.0L 4-cyl turbo + 59 and 61kW 3-Phase AC	23	29	26 (39 MPGe blended)	31 mi electric	54	4.5 h	$3,150
CT6	Gas	RWD	2.0L 4-cyl turbo	22	30	25	—	—	—	$3,300
CT6 AWD	Gas	AWD	3.6L 6-cyl	18	27	21	—	—	—	$3,200
CT6 AWD	Gas	AWD	3.0L 6-cyl turbo	18	26	21	—	—	—	$3,900

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 38650, 37936, 37775, 37776.

Emissions & certification

Source: EPA emission certificates

Configuration	Smog rating	Emission standard	Where it can be sold new	SmartWay
CT6 Plug-In	6 / 10	Federal Tier 3 Transitional Bin 110	All 50 states (federal, all altitudes); California and states following California standards	SmartWay
CT6, CT6 AWD	6 / 10	Federal Tier 3 Transitional Bin 110	All 50 states (federal, all altitudes); California and states following California standards	—
CT6 AWD	6 / 10	LEV-III ULEV125 / Federal Tier 3 Bin 125	All 50 states (federal, all altitudes); California and states following California standards	—

Certified for all fifty states, so it can be registered new anywhere in the U.S.

The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.

Specifications filed with NHTSA

Source: NHTSA vPIC

Dimensions Exterior

Body style	Sedan/Saloon
Doors	4
GVWR class	Class 1: 6,000 lb or less (2,722 kg or less)

Engine Basics

Cylinders	4
Displacement	2 L
Engine configuration	In-Line

Fuel Economy

Fuel	Gasoline

Seating

Seat rows	2
Seating capacity	5 seats

Transmission

Drivetrain	AWD/All-Wheel Drive
Transmission	Automatic
Transmission speeds	8

Driver assistance

Standard: Adaptive cruise control, Anti-lock brakes, Automatic emergency braking, Backup camera, Blind-spot monitoring, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist, Parking assist, Pedestrian automatic emergency braking

Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: Luxury, Platinum, Premium Luxury, Premium Luxury (PHEV)). Figures for the trim you are looking at may differ.

Dimensions & weight

Source: Transport Canada

Length	203.9 in
Width (body, without mirrors)	74.0 in
Height	57.9 in
Wheelbase	122.0 in
Track, front	64.2 in
Track, rear	65.0 in
Curb weight	3,646–4,385 lb
Weight distribution, front/rear	51/49 to 54/46

Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 5 configurations: 2.0L 4-door Sedan, 3.0L Twin Turbo AWD 4-door Sedan, 3.0L Twin Turbo AWD Platinum 4-door Sedan, 3.6L AWD 4-door Sedan, 3.6L AWD Platinum 4-door Sedan. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.

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Recalls (2)

Source: NHTSA recall database

○minor

Exterior Lighting

N162016079

181 vehicles 56% reported repaired

Problem 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. 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.

Filed with NHTSAOwner letter PDF

NHTSA campaign 21V759000 reported Sep 29, 2021 General Motors, LLC the full filing, and every vehicle covered →

▲high

Seats

18228

22,043 vehicles 93% reported repaired built Sep 4, 2015 – Sep 21, 2017 Plug-in hybrid only

Problem 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. Fix 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.

Filed with NHTSAOwner letter PDF

NHTSA campaign 18V437000 reported Jun 28, 2018 General Motors LLC the full filing, and every vehicle covered →

These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.

Whether any of this applies to one specific CT6

A campaign covers a build range, not a model year, so two identical-looking cars from 2017 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Cadillac publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.

NHTSA VIN check →Cadillac’s own VIN lookup →

Hear about a recall before the letter does

The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2017 Cadillac CT6, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.

Owner complaints

Source: NHTSA complaint database

26complaints filed

0 involved a crash · 0 a fire · 0 injuries · 0 deaths reported

22 per 10,000 built · Cadillac reported 12,031 CT6 built (its Early Warning production report to NHTSA)

Filed per year: 2017: 2 · 2018: 3 · 2019: 3 · 2020: 3 · 2021: 3 · 2022: 3 · 2023: 2 · 2024: 2 · 2025: 3 · 2026: 2

Most-cited components

Power Train 17

Electrical System 5

Visibility/Wiper 2

Engine 2

Service Brakes 2

Vehicle Speed Control 2

In owners' own words

Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.

The vehicle experiences harsh shifting, surging, and jerking forward during normal driving conditions. The behavior has occurred repeatedly over several years and has been confirmed by the dealership. Multiple repair attempts, including transmission-related work, have not resolved the issue.

Power Train Jan 29, 2026 NHTSA owner report · ODI 11714281

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 same findings.

Fuel/Propulsion System Nov 21, 2025 NHTSA owner report · ODI 11700820

My vehicles transmission has a buzzing noise coming from the transmission oil pan and a gear shifting problem I took vehicle to Cadillac dealer whom can’t find the issue they changed the oil pan and the transmission lines . My vehicle is a 2017 Cadillac ct6 with 72027 miles .

Vehicle Speed Control Apr 18, 2025 NHTSA owner report · ODI 11655564

Water is getting into my trunk where the amp is and now my radio does not work only the back up camera. I cannot control the AC or turn on the air conditioner. Or is that how I would like it to blow

Electrical System Mar 20, 2025 NHTSA owner report · ODI 11649426

Transmission - Jerks and studders (hesitation) in the course of normal driving. Brakes - Makes a squealing noise which has gotten louder over time

Service Brakes Jun 22, 2024 NHTSA owner report · ODI 11595865

SIDEWALL CRACKING ISSUE WITH ALL FOR TIRES - PIRELLI P ZERO NERO 245/40/R20 While traveling out of town (Dallas to San Antonio) we experienced some tire issues which led to us needing to replace all 4 tires.

Tires Jul 6, 2023 NHTSA owner report · ODI 11530777

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Reported by Cadillac itself: 12 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 2 killed, 13 injured, as claimed, not verified — about 100 per 100,000 built. Every CT6 model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.

When owners reported it

Reported at 10k

miles, typically

Half the 12 owner reports with an odometer reading on file fall between 2,000 and 24,000 miles. That is when problems get reported, which is not the same as when they start — and not a failure rate, because nobody knows how many of these cars never had a problem at all.

Too few readings for a curve — the 12 on file: 7 under 10k, 1 10k–20k, 1 20k–30k, 1 50k–60k, 1 80k–90k, 1 100k–150k.

Odometer readings as filed by owners with NHTSA. Readings under 100 or over 400,000 miles are dropped as data entry rather than history, and a component needs at least 12 readings before a median is shown for it.

Crash ratings

Source: NHTSA NCAP

NHTSA has not published 5-Star crash ratings for this model year.

Service bulletins & campaigns

Source: NHTSA manufacturer communications

Extended coverage on file 1 filing by the manufacturer with NHTSA naming this model year

Term not in NHTSA’s summary · GM warranty extension 22-NA-244This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every GM warranty extension (33) → · Every warranty extension on file, all makes →

Communicationsfiled with NHTSA 1,328

Most recentmanufacturer date 2026-09-26

Kindsas classified by NHTSA 1324 service bulletins, 2 others, 1 warranty extension

Most often about: Equipment, Electrical System, Engine, Power Train, Unknown Or Other.

PIT5698F Service bulletin
2026-09-26 · Unknown Or Other
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
PIP5700H Service bulletin
2026-09-21 · Unknown Or Other
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
PIP4902W Service bulletin
2026-09-04 · Unknown Or Other
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIT5099J Service bulletin
2026-07-21 · Unknown Or Other
PI to help diagnose A/C concern
PIT3271Q Service bulletin
2026-04-01 · Unknown Or Other
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIP6104 Service bulletin
2026-03-09 · Unknown Or Other
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP4902V Service bulletin
2026-03-09 · Unknown Or Other
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP5700G Service bulletin
2026-01-12 · Unknown Or Other
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering

A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.

Diagnostic trouble codes on file

Source: NHTSA manufacturer communications and complaints

Codes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.

Code	What it means	Most often filed under	Where it appears
P0300 P0300 on Cadillac →	Misfire detected, but not isolated to one cylinder.	Engine · Ignition coils →	12 bulletins
B3055 B3055 on Cadillac →	Manufacturer-defined — the meaning is set by the automaker, not the standard.	Electrical System · Battery →	11 bulletins
B3060 B3060 on Cadillac →	Manufacturer-defined — the meaning is set by the automaker, not the standard.	Electrical System · Battery →	11 bulletins
B3935 B3935 on Cadillac →	Manufacturer-defined — the meaning is set by the automaker, not the standard.	Electrical System · Battery →	11 bulletins
P0016 P0016 on Cadillac →	The crankshaft and camshaft are not where they should be relative to each other — timing, chain or phaser.	Engine	7 bulletins
P0018 P0018 on Cadillac →	Manufacturer-defined — the meaning is set by the automaker, not the standard.	Engine	7 bulletins
P0308 P0308 on Cadillac →	Cylinder 8 is misfiring.	Engine · Ignition coils →	6 bulletins
P050D P050D on Cadillac →	Manufacturer-defined — the meaning is set by the automaker, not the standard.	Engine	6 bulletins
P0011 P0011 on Cadillac →	Camshaft timing on bank 1 is more advanced than commanded.	Engine	5 bulletins
P0014 P0014 on Cadillac →	The second camshaft on bank 1 is timed further advanced than commanded.	Engine	5 bulletins
P0021 P0021 on Cadillac →	Camshaft timing on bank 2 is more advanced than commanded.	Engine	5 bulletins
P0024 P0024 on Cadillac →	Manufacturer-defined — the meaning is set by the automaker, not the standard.	Engine	5 bulletins

Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.

At the New York inspection station

Source: New York State DMV

New York inspections 7.5%

failed emissions

360 initial inspections of 346 vehicles.

Measure	The 2017 CT6	Every 2017 vehicle	Behind it
Failed the emissions check	7.5%	3.7%	360
Failed the safety inspection	1.1%	2.1%	360
Air-bag warning lamp stayed lit	0.28%	0.25%	360
Miles driven a year	7,775	10,048	odometer at inspection
Average odometer	72,066	93,238	odometer at inspection

New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2017 vehicle” is every 2017 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).

CT6 by model year

all years, side by side →

Year Safety Recalls Complaints

2020 B 2 11 21 mpg 2019 C 4 17 28 mpg 2018 B 2 12 25 mpg 2017 this page B 2 26 26 mpg 2016 B 3 11 25 mpg

Common questions about the 2017 CT6

Source: EPA, NHTSA and manufacturer press kits

Does the 2017 Cadillac CT6 have any recalls?

NHTSA has posted 2 recall campaigns for the 2017 Cadillac CT6. The most serious on file is 18V437000, covering Seats. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.

How safe is the 2017 Cadillac CT6?

NHTSA has not published a crash-test rating for the 2017 Cadillac CT6 yet. On the recall record WhichTrim grades it B (89/100), which measures open and severe recalls rather than crash protection.

What is the fuel economy of the 2017 Cadillac CT6?

Across the 4 EPA-rated configurations of the 2017 Cadillac CT6, the best EPA combined figure is 26 mpg (MPGe on the electrified versions). Figures are the EPA's own, per configuration, and every one is listed above.

What are the dimensions of the 2017 Cadillac CT6?

Transport Canada measured it at 203.9 in long, 74.0 in wide (body, without mirrors), 57.9 in tall, on a 122.0 in wheelbase. Curb weight: 3,646–4,385 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.

What do owners complain about on the 2017 Cadillac CT6?

Owners have filed 26 complaints with NHTSA about the 2017 Cadillac CT6, most often about power train, electrical system, visibility/wiper. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.

How clean is the 2017 Cadillac CT6?

The EPA smog rating for the 2017 Cadillac CT6 is 6 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — Federal Tier 3 Bin 125, Federal Tier 3 Transitional Bin 110, LEV-III ULEV125 — which the table above lists per configuration.

Are there service bulletins for the 2017 Cadillac CT6?

The manufacturer has filed 1328 service bulletins and related communications with NHTSA for the 2017 Cadillac CT6, most often covering equipment, electrical system, engine. The most recent is dated 2026-09-26. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.

How does the 2017 Cadillac CT6 do at state inspection?

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2017 Cadillac CT6 failed the emissions check on 7.5% of first inspections — higher than the 3.7% for every 2017 model-year vehicle inspected; and the safety inspection on 1.1% (every 2017 vehicle: 2.1%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.

What we hold, and what an empty row means

Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.

Data	Held	Source	What it covers — or what empty means
Fuel economy & configurations	4 configurations	EPA certification records	Every configuration the EPA certified for sale, with its own test figures.
Emission certificates	4 configurations	EPA emission certificates	Smog rating, standard and the sales area that decides where the car can be sold new.
Recalls	2	NHTSA recall campaigns	A complete federal register: every campaign covering this model year, with severity and advisory flags.
Owner complaints	26	NHTSA complaint database	Also complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold.
Crash ratings	none	NHTSA NCAP	NHTSA has not tested this model year. Cars are selected for testing, so untested is not unsafe.
Service bulletins	1328	NHTSA manufacturer communications	Everything the manufacturer told its dealers about a defect or malfunction, short of a recall.
Investigations	none	NHTSA Office of Defects Investigation	No defect investigation has been opened.
Driver-assist crash reports	none	NHTSA Standing General Order 2021-01	No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like.
Specifications filed with NHTSA	12 fields	NHTSA vPIC, decoded from VIN patterns	What the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder.
Measured dimensions	7 fields	Transport Canada, Canadian Vehicle Specifications	Length, width, height, wheelbase, track and curb weight, measured on the North American versions.
Trims, pricing & equipment	none	Manufacturer press kit	We have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind.

Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.

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