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Cadillac · Mid-Size · 2020–2025 Custom Search

Cadillac CT5 A47

Weaknesses, engine ratings and buying advice

4.0 / 5.0 · Based on 4 engine variants
Most Fun Engine

669–692 PS

6.2L V8 Kompressor Benzin

Last V8 manual sedan on Earth — buy one before 2026

Legendary!
Most Reliable Engine

314–336 PS

3.6L V6 Benzin

3 weaknesses

Good Choice

Engine Overview

The Cadillac CT5 A47 is available with 3 engine variants — from 231 to 692 hp. 1 variants had engine changes — the model year is crucial.

2.0L Turbo I4 (LSY) · Petrol· 228 PS
2020 2025
Be Careful 4 weaknesses
3.6L V6 · Petrol· 335 PS
2020 2025
Good Choice 3 weaknesses
CT5-V · Petrol· 329–659 PS Engine Change
2020 2025
Good Choice 5 weaknesses
2022 2025
Be Careful 3 weaknesses

The Cadillac 2.0L Turbo I4 (LSY) (Petrol, 228 PS) has the LSY (2.0L Turbo I4 (LSY)) — rated: "Be Careful", 4 known weaknesses.

The Cadillac 3.6L V6 (Petrol, 335 PS) has the LGX (3.6L V6) — rated: "Good Choice", 3 known weaknesses.

The Cadillac CT5-V (Petrol, 329–659 PS) comes with 2 different engines: L3B (2020–2025, Good Choice) and LT4 (2022–2025, Be Careful). Pay attention to the model year for the CT5-V!

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Vehicle Weaknesses

WeaknessCost
!10-Speed Automatic Shudder

GM 10L80 automatic develops vibration and shudder at low speeds — torque converter clutch plate wears. Transmission fluid flush or torque converter replacement required.

Symptoms: Shudder when accelerating in 3rd-5th gear, vibrations at steady cruise
from 40,000 km
High
!Clutch Hydraulic Line Loosens (TR6060)

Clutch hydraulic line can work loose at the connection point — pedal goes soft or sinks to the floor. Multiple documented cases on CT5-V Blackwing.

Symptoms: Soft clutch pedal, clutch won't disengage cleanly, fluid loss under car
from 30,000 km
Medium
iTR6060 Notchy 1-2 Shift When Cold

Second gear engagement is stiff when transmission fluid is cold — normal TR6060 characteristic, disappears after warm-up. Dexron-III fluid change at 1,500 miles improves feel noticeably.

Symptoms: Notchy 1-2 and 2-3 shifts at cold start, disappears after 5-10 minutes of driving
Low
NHTSA Owner Complaints
Average
74 complaints · 2020–2025
Powertrain
19 ⚠ 1
Electrical
16 ⚠ 2
Other
12
Body Structure
10
Engine
10

Top Reported Issues

Powertrain (19 complaints)
Electrical (16 complaints)
Other (12 complaints)
Source: NHTSA (nhtsa.gov) · 2026-04

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Known Problems and Issues

A total of 24 weaknesses have been documented for the Cadillac CT5 A47 (2020–2025) — 15 engine-related and 9 vehicle-related. Typical issues affect Gearbox, Other, Electronics, Suspension. Considered reliable: LGX (3.6L V6), L3B (2.7L Turbo I4).

CT5 (LSY, 2020–2025) — Be Careful: Thrust bearing wear — crank walk (LSY), Thermal management valve failure (LSY), High-pressure fuel pump failure (LSY). Power: 228 PS.

CT5 (LT4, 2022–2025) — Be Careful: AFM Lifter Collapse (LT4), Intercooler Heat Soak on Track, Supercharger Noise at Higher Mileage. Power: 659 PS.

What to watch out for with the Cadillac CT5? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Cadillac CT5 A47 have? +
The Cadillac CT5 A47 has 15 known engine weaknesses and 9 vehicle weaknesses.
What should I look for when buying a used Cadillac CT5 A47? +
faq.watch_a_solid
Which engine is recommended? +
Good choice: LGX (3.6L V6), L3B (2.7L Turbo I4). The most reliable engine is the LGX (3.6L V6) with the lowest risk score. The most fun to drive is the LT4 (6.2L V8 Kompressor).
Which Cadillac CT5 A47 engine is the most reliable? +
The {code} ({displacement}) is the most reliable engine in the Cadillac CT5 A47. It has the lowest risk score of all available engines and is rated "Good Choice". However, there are 3 known weaknesses to be aware of.
Which Cadillac CT5 A47 engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Cadillac CT5 A47 — rated: "Legendary!". {description} BMW killed the M5 manual in 2011. Cadillac brought it back in 2022. In 2026, it's gone for good. 492 kW, TR6060, rear-wheel drive — the blower sings over the V8 bark above 3,500 rpm. Factory rev-match is too polite; heel-toe yourself and it rewards every time. Over 50% of buyers chose the manual. The 10-speed auto is faster around a track. Nobody buying the manual cares.
Is the Cadillac CT5 A47 worth buying used? +
The Cadillac CT5 A47 is a good choice as a used car — 2 of 4 engine variants are rated 'Good Choice'.
What horsepower variants are available for the Cadillac CT5 A47? +
The Cadillac CT5 A47 is available with engine variants from 231 to 692 hp. Petrol: LT4 (6.2L V8 Kompressor), LGX (3.6L V6), LSY (2.0L Turbo I4 (LSY)), L3B (2.7L Turbo I4).

Last updated: February 2026 · All information without guarantee