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2015 Cadillac CTS problems: engine and transmission complaints and recalls

HIGH COMPLAINT SIGNAL
47%
22 of 48 relevant owner complaints are about the engine, transmission or fuel system

47% of relevant owner complaints filed with NHTSA on the 2015 Cadillac CTS are about the engine, transmission or fuel system. That is a model-level pattern, not bad luck.

Worse than 59% of the 1,789 model years we track (2010–2023).

NHTSA data checked October 3, 2026
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Does the 2015 Cadillac CTS have transmission problems?

Owner complaints say yes, as a model-year pattern. 22 of 48 relevant complaints filed with NHTSA about the 2015 Cadillac CTS concern the engine, transmission or fuel system (47%), and the largest group is filed under power train (19). For comparison, the 2014 scores 65% and the 2016 scores 45%. On a test drive, check for shuddering, slipping, delayed or harsh shifts, or a whine at speed. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
22
engine, transmission, fuel
Total complaints
48
this model year
Fires reported
2
owner-reported
Recall campaigns
4
2 crashes · 0 injuries

Complaints by component

POWER TRAIN19 · 40%
UNKNOWN OR OTHER8 · 17%
SERVICE BRAKES8 · 17%
SUSPENSION5 · 10%
ELECTRICAL SYSTEM5 · 10%
STEERING4 · 8%

The years either side

2010
too few complaints
2011
48%
38 of 108
2012
22%
11 of 67
2013
31%
18 of 73
2014
65%
90 of 146
2015
47%
22 of 48
2016
45%
13 of 31
2017
36%
9 of 27
2018
too few complaints
2019
too few complaints
2020
no data
2021
no data
2022
no data
2023
no data

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other luxury sedans with no elevated signal in 2015

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

SUSPENSION,SERVICE BRAKES,ENGINE07/25/2025
The contact owns a 2015 Cadillac CTS. The contact stated that while driving at undisclosed speeds, there was a loud grinding and squeaking sounds coming from the vehicle. Additionally, there was a high-pitched sound coming from the vehicle. The contact also stated that the water pump was inoperable. There were no warni…
POWER TRAIN07/16/2025
The contact owns a 2015 Cadillac CTS. The contact stated while driving 65 MPH, the vehicle shuddered and made an abnormally loud sound. The contact exited the highway and drove to the nearest mechanic shop at a gas station. The mechanic diagnosed the vehicle and determined that the rear differential was fractured and n…
POWER TRAIN10/04/2024
The contact owns a 2015 Cadillac CTS. The contact stated that there was an abnormal loud clunking sound coming from the rear end of the vehicle while the vehicle was shifting into gears. The vehicle was taken to AMCO Transmissions & Total Car Care, where it was diagnosed that the rear differential had failed and neede…

Three of 22 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2015 Cadillac CTS (4)

SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
General Motors LLC (GM) is recalling certain 2014-2016 Cadillac CTS vehicles, equipped with heated front seats. The flexible heating mats in the front seats may be damag…
SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
General Motors LLC (GM) is recalling certain model year 2015 Cadillac ATS and CTS vehicles. The affected vehicles have a bracket between the brake pedal assembly and the…
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE
General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalade ESV, XTS, 2015-2016 Cadillac ATS, CTS, and SRX vehicles. The front-driver air bag inflator …

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2015 Cadillac CTS

Questions people ask about the 2015 Cadillac CTS

Does the 2015 Cadillac CTS have transmission problems?

Owner complaints say yes, as a model-year pattern. 22 of 48 relevant complaints filed with NHTSA about the 2015 Cadillac CTS concern the engine, transmission or fuel system (47%). Before buying one, have an independent mechanic check the transmission and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2015 Cadillac CTS?

NHTSA lists 4 recall campaigns on the 2015 Cadillac CTS. Whether a specific car still has one open depends on its VIN.

Which Cadillac CTS years are better?

Among the Cadillac CTS years we track, the 2012 (22%), the 2013 (31%) and the 2017 (36%) have a lower engine and transmission complaint share than the 2015 (47%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2015 Cadillac CTS?

That depends on the car in front of you, not just the model year. The 2015 Cadillac CTS has an elevated transmission complaint pattern, so treat it as a car that needs proof: service records showing transmission work, a cold-start test drive, and an independent pre-purchase inspection focused on the transmission. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle. Combined across 2 body styles NHTSA files separately.