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2020 Buick Enclave

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By Research the Car 4 min read

The 2020 Buick Enclave is a mid-size luxury SUV known for its spacious interior, comfortable ride, and quiet cabin. It’s generally appreciated for its family-friendly features and smooth driving experience, although some drivers find the styling bland and the infotainment system somewhat dated. A common complaint is the lack of sportiness compared to some competitors. The sole engine option for the 2020 Enclave is a 3.6L V6 producing 310 horsepower and 266 lb-ft of torque, paired with a 9-speed automatic transmission.

Engine

3.6L V6 (LGY)

  • Excessive Oil Consumption
    • Description/Symptoms: Some owners have reported higher-than-normal oil consumption, requiring frequent top-offs between oil changes. Symptoms include the low oil level indicator illuminating and the need to add oil every few thousand miles.
    • Solution: In some cases, a revised PCV valve or valve cover can mitigate the issue. More severe cases may require piston ring replacement or, in extreme instances, engine replacement.
    • Estimated Cost to Fix: $100 (PCV valve) - $5,000+ (engine replacement)
    • Recalls: None Found
  • Timing Chain Issues
    • Description/Symptoms: The timing chain can stretch or fail prematurely, leading to rough running, engine misfires, and the check engine light illuminating. Error codes related to timing chain correlation are common.
    • Solution: Replacement of the timing chain, guides, and tensioners is necessary. It is often recommended to replace the water pump at the same time, as it’s located within the timing chain cover.
    • Estimated Cost to Fix: $1,500 - $3,000+
    • Recalls: None Found

Transmission

9-Speed Automatic (9T65)

  • Harsh Shifting/Hesitation
    • Description/Symptoms: Some owners experience harsh or jerky shifting, particularly during low-speed maneuvers or when shifting between gears. Hesitation upon acceleration is also reported.
    • Solution: A software update for the transmission control module (TCM) may resolve the issue. In more severe cases, valve body replacement or complete transmission replacement may be required.
    • Estimated Cost to Fix: $100 (software update) - $5,000+ (transmission replacement)
    • Recalls: None Found
  • Torque Converter Issues
    • Description/Symptoms: Shuddering, vibration, or hesitation, especially during light acceleration or when maintaining a steady speed. This can sometimes be mistaken for a misfire.
    • Solution: Replacement of the torque converter. In some cases, a transmission flush may temporarily alleviate the symptoms.
    • Estimated Cost to Fix: $1,000 - $2,500+
    • Recalls: None Found

Suspension

  • Rear Suspension Noise
    • Description/Symptoms: Clunking or rattling noises emanating from the rear suspension, particularly when driving over bumps or uneven surfaces.
    • Solution: Inspection and replacement of worn or damaged suspension components, such as sway bar links, bushings, or shocks/struts.
    • Estimated Cost to Fix: $100 - $500+
    • Recalls: None Found

Electrical

  • Infotainment System Glitches
    • Description/Symptoms: Freezing, slow response times, and occasional reboots of the infotainment system. Bluetooth connectivity issues and problems with Apple CarPlay/Android Auto are also reported.
    • Solution: Software updates from Buick may address some of these issues. In some cases, replacement of the infotainment system module may be necessary.
    • Estimated Cost to Fix: $0 (software update) - $1,000+ (module replacement)
    • Recalls: None Found
  • Battery Drain
    • Description/Symptoms: The battery drains unexpectedly, leading to a no-start condition. This can occur even when the vehicle is not in use for extended periods.
    • Solution: Diagnosis and repair of parasitic draws, which can be caused by faulty modules, wiring issues, or aftermarket accessories. Sometimes a replacement of the battery is required as well.
    • Estimated Cost to Fix: $100 - $500+
    • Recalls: None Found

Exterior

  • Automatic Liftgate Malfunctions
    • Description/Symptoms: The automatic liftgate may fail to open or close properly, or it may stop mid-operation. Issues can also arise with the hands-free operation of the liftgate.
    • Solution: Inspection and replacement of the liftgate struts, motor, or control module.
    • Estimated Cost to Fix: $200 - $800+
    • Recalls: None Found

Interior

  • Seat Heater Failure
    • Description/Symptoms: The seat heaters may fail to heat up properly or may stop working altogether.
    • Solution: Replacement of the seat heater element or control module.
    • Estimated Cost to Fix: $200 - $600+
    • Recalls: None Found

Summary

The 2020 Buick Enclave has some potential issues that buyers should be aware of. The most concerning are those related to the engine and transmission, which can lead to costly repairs. Issues with the infotainment system and other electrical components can be frustrating, while suspension and liftgate problems are less severe but still require attention. Overall, the 2020 Enclave can be a reliable vehicle, but potential buyers should thoroughly inspect the car and address any of these potential issues before purchasing, and stay up to date on maintenance.

Buick, Enclave
Buick Enclave 2020
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