What is the 2020-2024 Buick Encore GX Encore GX CVT / 9-Speed Hesitation and Shudder?

The 2020+ Encore GX uses either the VT40 CVT (FWD 1.2L) or the GM 9T50 9-speed (AWD 1.3L). Both have reported issues: CVT hesitates from a stop, jerks on tip-in, and growls. 9-speed has been the subject of multiple TSBs covering harsh shifts, flares, and torque converter shudder. Repairs typically run $0-$3,500. Severity: high.

What is the 2020-2024 Buick Encore GX Electric EVAP Purge Pump Failure Causing Stalling, Fuel Odor and Emissions Faults?

Unlike older vacuum-driven purge systems, the GM three-cylinder turbo platform uses an electric EVAP purge pump to draw fuel vapor from the charcoal canister into the intake during boost, when there is no manifold vacuum available. The pump's motor and control circuit fail, and t… Repairs typically run $400-$850. Severity: medium.

What is the 2020-2022 Buick Encore GX Emergency Scissor Jack Fractures Under Load - Recall 21V440000?

GM recalled 2020-2022 Buick Encore GX (and 2021-2022 Chevrolet Trailblazer) vehicles because the supplied emergency scissor jack can fracture while in use if it is not positioned exactly as the owner's manual directs. The jack's load-bearing structure is not tolerant of off-nomin… Repairs typically run $0-$0. Severity: medium.

What is the 2020-2023 Buick Encore GX False "Shift to Park" Warning / Park Switch Failure (TSB 23-NA-119)?

A widely reported defect across 2020-2023 Encore GX vehicles is a false "Shift to Park" message that appears even when the vehicle is already in Park, caused by a faulty park switch inside the shifter assembly with spread or damaged electrical terminals. The fault can keep the ve… Severity: medium.

What is the 2020-2023 Buick Encore GX Incorrect Catalytic Converter Installed at Factory (Emissions Recall A202317281)?

Certain Encore GX vehicles with the turbocharged 1.2L (RPO LIH) engine left the factory with an incorrect catalytic converter that does not meet all emission system requirements, so the converter may not properly process exhaust gases. GM emissions recall A202317281 (NHTSA 101973… Severity: medium.

Buick · Known Issues

2020-2025 Buick Encore GX Problems: 12 Known Issues

2020-2025 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2020-2025 Buick Encore GX has 12 documented known issues, with 8 rated critical. The most serious are Plastic Coolant Control Valve / Water Pump Assembly Failure Causing Overheating (P3075) ($600-$1,500 repair), Turbocharger Wastegate Actuator Failure Causing "Engine Power Is Reduced" and Underboost (P0299) ($900-$2,400 repair), VT40 CVT Pressure Control Solenoid Failure - Complete Loss of Motive Power (P2714 / P0700) ($4,500-$7,800 repair), Lane Keep Assist Steering Intervention Pulling the Vehicle Toward Oncoming Traffic ($200-$600 repair), Encore GX CVT / 9-Speed Hesitation and Shudder ($0-$3,500 repair), ECM Ignition Timing Fault Causing Engine Knock After Auto Stop/Start (Recall A242435780), Instrument Panel Display Goes Blank While Driving (Recall 23V744 - VCU Software). at .

Frequently Asked Questions

What are the most common Buick Encore GX problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2020-2025 Buick Encore GX has 12 documented issues. The most frequently reported are: Plastic Coolant Control Valve / Water Pump Assembly Failure Causing Overheating (P3075), Turbocharger Wastegate Actuator Failure Causing "Engine Power Is Reduced" and Underboost (P0299), VT40 CVT Pressure Control Solenoid Failure - Complete Loss of Motive Power (P2714 / P0700). Of these, 8 are rated critical and should be addressed promptly.

Is the Buick Encore GX reliable?

The 2020-2025 Buick Encore GX has 12 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 8 issues are rated critical: Plastic Coolant Control Valve / Water Pump Assembly Failure Causing Overheating (P3075) and Turbocharger Wastegate Actuator Failure Causing "Engine Power Is Reduced" and Underboost (P0299) and VT40 CVT Pressure Control Solenoid Failure - Complete Loss of Motive Power (P2714 / P0700) and Lane Keep Assist Steering Intervention Pulling the Vehicle Toward Oncoming Traffic and Encore GX CVT / 9-Speed Hesitation and Shudder and ECM Ignition Timing Fault Causing Engine Knock After Auto Stop/Start (Recall A242435780) and Instrument Panel Display Goes Blank While Driving (Recall 23V744 - VCU Software) and Electronic Brake Boost Sensor Connection Failure - Loss of Power Assist (Recall 20V588). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Buick Encore GX problems?

Repair costs for known Buick Encore GX issues range from $0 to $7,800, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Plastic Coolant Control Valve / Water Pump Assembly Failure Causing Overheating (P3075), typically costs $600-$1,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Buick Encore GX is the most reliable?

Reliability varies across model years of the Buick Encore GX. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2020-2025 Buick Encore GX with 12 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.

All 12 Known Issues

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Frequently Asked Questions

What are the most common Buick Encore GX problems?

Is the Buick Encore GX reliable?

How much does it cost to fix common Buick Encore GX problems?

What year Buick Encore GX is the most reliable?

Turbocharger Wastegate Actuator Failure Causing "Engine Power Is Reduced" and Underboost (P0299)#

ECM Ignition Timing Fault Causing Engine Knock After Auto Stop/Start (Recall A242435780)#

VT40 CVT Pressure Control Solenoid Failure - Complete Loss of Motive Power (P2714 / P0700)#

Encore GX CVT / 9-Speed Hesitation and Shudder#

Lane Keep Assist Steering Intervention Pulling the Vehicle Toward Oncoming Traffic#

Emergency Scissor Jack Fractures Under Load - Recall 21V440000#

Instrument Panel Display Goes Blank While Driving (Recall 23V744 - VCU Software)#

False "Shift to Park" Warning / Park Switch Failure (TSB 23-NA-119)#

Plastic Coolant Control Valve / Water Pump Assembly Failure Causing Overheating (P3075)#

Electronic Brake Boost Sensor Connection Failure - Loss of Power Assist (Recall 20V588)#

Electric EVAP Purge Pump Failure Causing Stalling, Fuel Odor and Emissions Faults#

Incorrect Catalytic Converter Installed at Factory (Emissions Recall A202317281)#

What is the 2020-2024 Buick Encore GX Plastic Coolant Control Valve / Water Pump Assembly Failure Causing Overheating (P3075)?

What is the 2020-2025 Buick Encore GX Turbocharger Wastegate Actuator Failure Causing "Engine Power Is Reduced" and Underboost (P0299)?

What is the 2020-2025 Buick Encore GX VT40 CVT Pressure Control Solenoid Failure - Complete Loss of Motive Power (P2714 / P0700)?

What is the 2023-2025 Buick Encore GX Lane Keep Assist Steering Intervention Pulling the Vehicle Toward Oncoming Traffic?

What is the 2020-2024 Buick Encore GX Encore GX CVT / 9-Speed Hesitation and Shudder?

What is the 2024 Buick Encore GX ECM Ignition Timing Fault Causing Engine Knock After Auto Stop/Start (Recall A242435780)?

What is the 2024 Buick Encore GX Instrument Panel Display Goes Blank While Driving (Recall 23V744 - VCU Software)?

What is the 2020-2021 Buick Encore GX Electronic Brake Boost Sensor Connection Failure - Loss of Power Assist (Recall 20V588)?

What is the 2020-2024 Buick Encore GX Electric EVAP Purge Pump Failure Causing Stalling, Fuel Odor and Emissions Faults?

What is the 2020-2022 Buick Encore GX Emergency Scissor Jack Fractures Under Load - Recall 21V440000?

What is the 2020-2023 Buick Encore GX False "Shift to Park" Warning / Park Switch Failure (TSB 23-NA-119)?

What is the 2020-2023 Buick Encore GX Incorrect Catalytic Converter Installed at Factory (Emissions Recall A202317281)?