2018 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Buick Regal has 1 documented issue, with 1 rated critical. The most serious is Loss of Power Brake Assist — EBCM Software Defect (Recall). DIY maintenance guides at au7o.io.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
SEAT BELTS:REAR/OTHER
General Motors LLC (GM) is recalling certain 2018 Buick Regal vehicles. During the manufacturing process, the rear seat belts may have been improperly routed around the bolster bracket on the rear outboard seats, which can cause inadequate restraint of the passengers.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
General Motors, LLC (GM) is recalling certain 2018-2020 Buick Regal vehicles. In the event of a vacuum-power brake assist failure, a software error in the electronic brake control module (EBCM) may result in a loss of power brake assist. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard No. 135, "Light vehicle brake systems."
SEATS
General Motors LLC (GM) is recalling certain 2019-2020 Buick Regal vehicles. The driver or passenger front seat frames may have a lower crossbar that was improperly welded.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Buick Regal has 1 documented issue. The documented issue is: Loss of Power Brake Assist — EBCM Software Defect (Recall). Of these, 1 is rated critical and should be addressed promptly.
The 2018 Buick Regal has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Loss of Power Brake Assist — EBCM Software Defect (Recall). 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.
2018-2020 fifth-generation Regals (Sportback/TourX) were recalled because a software error in the electronic brake control module (EBCM) may fail to activate the hydraulic-brake boost backup if vacuum brake assist is lost. The result is a hard, high-effort brake pedal with substa… Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
