Independent · Not affiliated with NHTSA or any automaker MethodologyData sourcesData refreshed Oct 6, 2026

2016 Cadillac CT6: Problems, Recalls and MPG

What this means

NHTSA lists 3 recall campaigns for the 2016 Cadillac CT6, most recently filed September 2021. Owners have filed 11 complaints with NHTSA, most often about the power train.

Data summary generated from official records. Methodology Data: NHTSA, DOT, EPA · Refreshed Oct 6, 2026
Caution Fewer than 50 complaints filed. With this few reports, patterns may not be meaningful.
Compare

Recalls (3)

NHTSA lists 3 recall campaigns for the 2016 Cadillac CT6. Check whether yours was repaired with NHTSA's free VIN lookup ↗

Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.

Check on NHTSA ↗
Listed for 2016 Cadillac CT6. Not checked against your VIN.
Recall 21V759000 Filed Sep 29, 2021

Park/Position Lights Too Bright/FMVSS 108

Exterior lighting
Official NHTSA text
Summary
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."
Consequence
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.
49.6% repairedof 181 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 21V759000
Listed for 2016 Cadillac CT6. Not checked against your VIN.
Recall 18V437000 Filed Jun 28, 2018

Excess Adhesive on Child Seat Anchor/FMVSS 225

Child seat · latch strap
Official NHTSA text
Summary
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."
Consequence
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.
92.7% repairedof 22,043 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 18V437000
Listed for 2016 Cadillac CT6. Not checked against your VIN.
Recall 16V687000 Filed Sep 23, 2016

Missing Bolt may Allow Seat Belt Webbing to Detach

Seat belts · front · webbing
Official NHTSA text
Summary
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.
Consequence
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.
99.2% repairedof 131 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 16V687000

PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.

Owner complaints (11)

11 complaints filed with NHTSA (owner reports, not verified findings). The power train is mentioned most often.

3involved a crash
0involved a fire
2injuries reported
1deaths reported

As reported by owners in their complaints. These are reports, not NHTSA findings.

Most-reported components

Complaints filed with NHTSA for the 2016 Cadillac CT6, by component (top 7). One complaint can list several components, so these add up to more than 11.Source: NHTSA ODI owner complaints · Retrieved Oct 6, 2026 · Report a data error

How 2016 compares with other CT6 years

Best and worst CT6 years →
11 17 9 17 11
20162017201820192020
This year (2016)Other yearsStill collecting reports

Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.

Fuel economy: up to 25 mpg combined

25
mpg combined
22
city
30
highway
EPA annual fuel cost
$2,700
CO₂ tailpipe
357 g/mi
EPA class
Large Cars

What it costs you to run

$2,612per year
$218per month
600gallons a year

Miles ÷ 25 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.

EPA label estimates from lab tests; your mileage will vary.

Specs by configuration

2016 Cadillac CT6 configurations with EPA data
Engine · transmissionDriveCity / Hwy / CombEPA $/yrCO₂ g/mi
2 L 4-cyl · 8-speed automaticRear-Wheel Drive22 / 30 / 25$2,700357
3 L 6-cyl · 8-speed automaticAll-Wheel Drive18 / 26 / 21$3,900424
3.6 L 6-cyl · 8-speed automaticAll-Wheel Drive18 / 27 / 21$3,200414

Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.

Used blue SUV on a sunny dealer lot with its hood open and a clipboard on the fender

Looking at a 2016 CT6 for sale?

Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.

All CT6 years

Where to next

2016 Cadillac CT6 FAQ

How many recalls does the 2016 Cadillac CT6 have?

NHTSA lists 3 recall campaigns: 21V759000 (lighting), 18V437000 (latch), 16V687000 (seat belt). Use NHTSA's VIN lookup to see whether a specific car was repaired.

What are the most common 2016 Cadillac CT6 problems?

Owners filed 11 complaints with NHTSA. Power train (6), Air bags (2), Engine (2) are mentioned most. These are owner reports, not verified findings.

What mpg does the 2016 Cadillac CT6 get?

EPA rates the 2 L 4-cyl · 8-speed automatic version at 22 city, 30 highway and 25 combined mpg. Other configurations are listed in the fuel economy section.

How does the 2016 CT6 compare with other years?

Among the 2016–2020 Cadillac CT6 model years at least five years old, the 2018 drew the fewest complaints (9) and the 2019 the most (17). The 2016 drew 11. Counts are owner reports, not failure rates.

How this page was madeSources, processing, limits, review and changes

Processing

  • Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
  • Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.

Limitations

  • Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
  • Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
  • Recent model years are still collecting reports.

Review

Data compiled automatically from the official files listed here.

Changelog

  • 2026-10-06 Data refreshed from the official files.
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