The vehicle dossier US · 2021

2021 Buick
ENCORE GXProblems & recalls

53 distinct owner reports in the NHTSA snapshot. Engine appears in 19 of them. Explore what was reported—and which official actions are on file.

Snapshot Sep 28, 2026Live NHTSA complaint API How this dossier is compiled

01 / Owner-reported evidence

What owners reported.

Categories attached to 53 distinct reports. A report can mention more than one component, so category totals can overlap.

Engine19 reports
Other components16 reports
Transmission & drivetrain11 reports
Brakes8 reports
Fuel system7 reports
Electrical system4 reports
Steering1 reports
Air bags1 reports
Suspension1 reports
Visibility1 reports
See original component labels
ENGINE15
POWER TRAIN11
SERVICE BRAKES7
FUEL/PROPULSION SYSTEM7
UNKNOWN OR OTHER6
ELECTRICAL SYSTEM4
EQUIPMENT2
VEHICLE SPEED CONTROL2
STEERING1
FORWARD COLLISION AVOIDANCE: DYNAMIC BRAKE SUPPORT/BRAKE ASSIST1
SEAT BELTS1
ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER:INTERCOOLER1
LANE DEPARTURE: SENSING SYSTEM: OTHER1
ENGINE AND ENGINE COOLING1
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER1
AIR BAGS1
SUSPENSION1
SEATS1
VISIBILITY/WIPER1
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM1
SERVICE BRAKES, HYDRAULIC1
LANE DEPARTURE: ASSIST1
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL1
LANE DEPARTURE: WARNING1
BACK OVER PREVENTION1

These are reports made to NHTSA, not verified diagnoses. More reports can reflect more vehicles, more time on the road, or greater reporting activity.

The reporting timeline

When reports arrived.

Reports by year filed, not by the year a problem occurred. Showing the latest 6 years with reports.

Year filed (last two digits)Latest report: Sep 18, 2026
Mileage, where supplied

45,000 miles is the median among 15 reports with usable mileage. The middle half spans 17,500–58,000 miles.

This describes the submitted reports. It does not predict when a vehicle will fail.

02 / Official safety campaigns

2 recall campaigns on file.

A campaign can cover only certain production dates or configurations. The count does not tell you whether an individual car has an open recall.

Jun 10, 2021 Safety recallEQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STANDCampaign 21V440000

Reported concern

General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.

Manufacturer’s stated response

Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A212335470.

Manufacturer campaign: A212335470

Read campaign 21V440000 at NHTSA
Sep 24, 2020 Safety recallSERVICE BRAKESCampaign 20V588000

Reported concern

General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.

Manufacturer’s stated response

GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.

Manufacturer campaign: A202307260

Read campaign 20V588000 at NHTSA
Check this car’s VIN at NHTSA

03 / The manufacturer’s record

Instructions. Updates. Responses.

674 distinct communications list this model-year. Showing the latest 12. A matching model-year does not establish that every engine, trim or reported symptom is covered.

Sep 4, 2026 Service Bulletin/Repair InstructionsPIP4902WThis preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.NHTSA ID 11037253

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11037253 at NHTSA
Sep 4, 2026 Service Bulletin/Repair InstructionsPIT5995BThis Preliminary Information provides the dealer information of the location of the rear seat child anchors.NHTSA ID 11037252

This Preliminary Information provides the dealer information of the location of the rear seat child anchors.

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11037252 at NHTSA
Sep 1, 2026 Warranty Program/ExtensionN242450640-02Special Coverage. Certain 2021 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunctio…NHTSA ID 11036593

Special Coverage. Certain 2021 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Additionally, a message may be displayed indicating the vehicle’s available engine power is reduced. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 6, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 6, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the turbocharger as necessary. The repairs will be made at no charge to the customer.

Campaign / software reference: N242450640-02

Components: ENGINE. Confirm detailed applicability in the original document.

Source record 11036593 at NHTSA
Aug 28, 2026 Service Bulletin/Repair InstructionsPIT6196AThis Preliminary Information provides a diagnostic tip for diagnosing an issue with Cruise Control, Adaptive Cruise and Lane Keep Assist Turns Off or Inoperative.NHTSA ID 11036693

This Preliminary Information provides a diagnostic tip for diagnosing an issue with Cruise Control, Adaptive Cruise and Lane Keep Assist Turns Off or Inoperative.

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11036693 at NHTSA
Aug 20, 2026 Service Bulletin/Repair InstructionsPIC6551CThis Preliminary information communicates to dealer to perform a MEC reset for wireless projection issuesNHTSA ID 11036392

This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11036392 at NHTSA
Jul 23, 2026 Service Bulletin/Repair InstructionsPIC6548BThis Preliminary information communicates to the technician the direction needed when encountering an issue with switching between adaptive cruise control and regular cruise control or an issue with automatic high beam feature …NHTSA ID 11035349

This Preliminary information communicates to the technician the direction needed when encountering an issue with switching between adaptive cruise control and regular cruise control or an issue with automatic high beam feature after the front camera was replaced.

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11035349 at NHTSA
Jul 21, 2026 Service Bulletin/Repair InstructionsPIT5099JPI to help diagnose A/C concernNHTSA ID 11035340

PI to help diagnose A/C concern

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11035340 at NHTSA
Jun 23, 2026 Service Bulletin/Repair InstructionsPIT5966FThis Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.NHTSA ID 11034769

This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11034769 at NHTSA
Jun 3, 2026 Service Bulletin/Repair InstructionsPIP6032CPIP6032B provides diagnostic direction for dealers when encountering transmission leaksNHTSA ID 11033723

PIP6032B provides diagnostic direction for dealers when encountering transmission leaks

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11033723 at NHTSA
May 11, 2026 Service Bulletin/Repair InstructionsPIC6423APi created to provide GM dealers with information on gathering information for projection issueNHTSA ID 11032764

Pi created to provide GM dealers with information on gathering information for projection issue

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11032764 at NHTSA
May 11, 2026 Service Bulletin/Repair InstructionsPIC6551BThis Preliminary information communicates to dealer to perform a MEC reset for wireless projection issuesNHTSA ID 11032763

This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11032763 at NHTSA
Apr 21, 2026 Service Bulletin/Repair InstructionsPIP6029AThis PI instructs dealers to install foam around the shifter cable to stop rattlingNHTSA ID 11031713

This PI instructs dealers to install foam around the shifter cable to stop rattling

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 11031713 at NHTSA
Browse all manufacturer records by page

Records below contain the NHTSA bulk summary unless a document-reviewed explainer is linked. A service bulletin is not a safety recall or a promise of a free repair. Records may be revised or superseded; verify the current document with the manufacturer.

04 / Agency investigations

Official inquiries.

An investigation is an inquiry into a potential concern. Its presence does not establish a defect, and a closed case does not certify a car’s condition.

No investigation records matched this model-year in the snapshot.

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