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Buick · Full-Size SUV · 2018–2024 Custom Search

Buick Enclave C1XX

Weaknesses, engine ratings and buying advice

★★★★★
3.0 / 5.0 · Based on 1 engine variants · How we rate

Generations

Engine Overview

The Buick Enclave C1XX is available with one engine variant at 314 hp.

3.6L V6 (LFY) · Petrol· 310 PS
2018 2024

3.6-liter High Feature V6 with Active Fuel Management and Stop/Start, 310 hp. Timing chain issues from the LLT are largely fixed. Water pump remains a known wear item between 80,000 and 130,000 miles, expensive due to buried location.

  • !! Water pump failure (LFY) from 160,000 km

    Water pump is a known wear item on the 3.6 platform, typically failing around 80,000–130,000 miles. Located in a labor-intensive spot.

    Symptoms: Coolant loss, overheating, coolant under engine
    1,080–1,668 $
    Ad water pump 3.6 LFY

Vehicle Weaknesses

WeaknessCost
✖9T65 Transmission Shudder

The 9-speed 9T65 automatic suffers from torque converter shudder, especially in gears 2-5. GM launched a pilot program to replace affected transmissions.

Symptoms: Shuddering when accelerating from stop, vibrations at 25-40 mph, RPM spikes
from 30,000 km
Ad 9T65 torque converter Enclave9T65 transmission fluid
 High
NHTSA Owner Complaints
Below average
190 complaints · 2018–2024
  1. 01 Engine
    43 ⚠ 1
  2. 02 Brakes
    39 ⚠ 4
  3. 03 Powertrain
    36 ⚠ 3
  4. 04 Electrical
    32 ⚠ 3
  5. 05 Other
    30 ⚠ 2

Top Reported Issues

⚠ Engine (43 complaints)
⚠ Brakes (39 complaints)
⚠ Powertrain (36 complaints)
Source: NHTSA (nhtsa.gov) · 2026-04

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Known Problems and Issues +

A total of 6 weaknesses have been documented for the Buick Enclave C1XX (2018–2024) — 1 engine-related and 5 vehicle-related. Typical issues affect Gearbox, Electronics, HVAC, Body.

Enclave (LFY, 2018–2024) — Be Careful: Water pump failure (LFY). Power: 310 PS.

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

Frequently Asked Questions

What problems and weaknesses does the Buick Enclave C1XX have? +
The Buick Enclave C1XX has 1 known engine weaknesses and 5 vehicle weaknesses.
What should I look for when buying a used Buick Enclave C1XX? +
faq.watch_a_none
Which engine is recommended? +
Be careful: LFY (3.6L V6 (LFY)). No engine is rated 'Good Choice'. The most fun to drive is the LFY (3.6L V6 (LFY)).
Which Buick Enclave C1XX engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the Buick Enclave C1XX — rated: "Decent". {description} The LFY engine runs reliably, but the 9T65 transmission shudders in early years. Much improved from 2021 onward.
Is the Buick Enclave C1XX worth buying used? +
The Buick Enclave C1XX requires careful consideration — choosing the right engine variant is crucial.
What horsepower variants are available for the Buick Enclave C1XX? +
The Buick Enclave C1XX is available with engine variants from 314 to 314 hp. Petrol: LFY (3.6L V6 (LFY)).

Last updated: February 2026 · All information without guarantee