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Cadillac · Mid-Size SUV · 2020–2025 Custom Search

Cadillac XT6 C1XX

Weaknesses, engine ratings and buying advice

★★★★★
5.0 / 5.0 · Based on 1 engine variants

Engine Overview

The Cadillac XT6 C1XX is available with one engine variant at 314 hp.

3.6L V6 · Petrol· 314 PS
2020 2025
Good Choice 3 weaknesses
Show all weaknesses →

The Cadillac 3.6L V6 (Petrol, 314 PS) has the LGX (3.6L V6) — rated: "Good Choice", 3 known weaknesses.

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Vehicle Weaknesses

WeaknessCost
!9-Speed Automatic Shudder (2020-2021)

GM 9T65 automatic develops shudder at low speeds — primarily 2020-2021 model years. Transmission fluid flush or torque converter replacement required.

Symptoms: Shudder at 20-30 mph, hard shifts when maneuvering
from 40,000 km
Ad 9T65 torque converter XT69-speed transmission fluid Cadillac XT6
 High
NHTSA Owner Complaints
Average
95 complaints · 2020–2025
Electrical
22
Powertrain
20
Other
16
Backup Camera/Sensors
14 ⚠ 1
Engine
10

Top Reported Issues

⚠ Electrical (22 complaints)
⚠ Powertrain (20 complaints)
⚠ Other (16 complaints)
Source: NHTSA (nhtsa.gov) · 2026-04

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Known Problems and Issues

A total of 7 weaknesses have been documented for the Cadillac XT6 C1XX (2020–2025) — 3 engine-related and 4 vehicle-related. Typical issues affect Gearbox, Other, Electronics. Considered reliable: LGX (3.6L V6).

What to watch out for with the Cadillac XT6? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Cadillac XT6 C1XX have? +
The Cadillac XT6 C1XX has 3 known engine weaknesses and 4 vehicle weaknesses.
What should I look for when buying a used Cadillac XT6 C1XX? +
faq.watch_a_solid
Which engine is recommended? +
Good choice: LGX (3.6L V6). The most reliable engine is the LGX (3.6L V6) with the lowest risk score. The most fun to drive is the LGX (3.6L V6).
Which Cadillac XT6 C1XX engine is the most reliable? +
The {code} ({displacement}) is the most reliable engine in the Cadillac XT6 C1XX. 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 XT6 C1XX engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Cadillac XT6 C1XX — rated: "Decent". {description} 314 hp in a three-row SUV handles everything a family needs. The LGX works quietly and reliably. The 9-speed auto had teething issues in 2020-2021 models — significantly improved from 2022 onward.
Is the Cadillac XT6 C1XX worth buying used? +
The Cadillac XT6 C1XX is a good choice as a used car — 1 of 1 engine variants are rated 'Good Choice'.
What horsepower variants are available for the Cadillac XT6 C1XX? +
The Cadillac XT6 C1XX is available with engine variants from 314 to 336 hp. Petrol: LGX (3.6L V6).

Last updated: February 2026 · All information without guarantee