This page covers 4 recalls, 11 owner complaints and EPA fuel economy for the 2016 Cadillac CT6.
21–25 mpg combined
9.4–11.2 L/100km
Large Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 3 tested variants for this model year.
Powertrain complaints dominate owner reports for the 2016 CT6. Owners most often describe transmission-related symptoms: rough or abrupt shifting when moving from park into reverse or drive, unexpected jolts during gear changes at low to moderate speeds, and general drivability issues including persistent shaking. A few owners also report fluid leaking from underneath the vehicle while parked. On the engine side, a small number of reports describe recurring power or boost problems, with at least one owner noting that cylinder-specific issues returned after a repair attempt. Two airbag complaints exist in the data, including one involving non-deployment during a collision, but with only two reports, this cannot be characterized as a pattern. The transmission shifting and drivability concerns are what show up consistently across multiple owner accounts.
11
Total Complaints
3
Crash-Related
2
With Injuries
By System
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database.
The 2016 Cadillac CT6 has 4 recalls, the most serious involving child seat anchors and a front passenger seatbelt that may be missing a mounting bolt, leaving the belt unable to hold the occupant in a crash.
The child seat anchorage issue stems from excess structural adhesive applied to the inboard anchor bars during assembly, which can physically block a child seat's LATCH connectors from locking in properly. A child seat that cannot attach fully to the bar will not provide adequate protection in a crash. The seatbelt concern affects a narrow window of production: on certain vehicles, the bolt that secures the front passenger seatbelt webbing to the seat's anchor plate may have been left out entirely, meaning the belt can pull free of its mounting point under crash forces. There is also a lighting concern: the parking and position lights on certain vehicles can glow more brightly than federal standards allow, which can dazzle oncoming drivers and raise the risk of a collision.
At a glance
What can fail
The parking lights on these vehicles glow brighter than allowed by federal safety standards, failing to meet lamp brightness requirements.
What the fix does
Dealers will install new headlight jumper harnesses on both sides of the vehicle at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Excess structural adhesive applied to the inboard child seat anchorage bars during assembly may interfere with proper child seat installation.
What the fix does
Dealers will inspect the anchorage bars, remove excess adhesive, and apply anti-corrosion primer at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Structural adhesive may have been applied to the child seat anchorage bar during assembly. If present, a child seat cannot properly engage the lower universal anchorage system, increasing injury risk in a crash.
What the fix does
Dealers will inspect the inboard child seat anchorage bars for adhesive and remove it if found.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The bolt connecting the front passenger seat belt webbing to its anchor plate may be missing, allowing the seat belt to detach from the seat.
What the fix does
Dealers will replace or install the front passenger seat belt webbing anchor bolt at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
