{"id":10993,"date":"2026-09-02T10:55:34","date_gmt":"2026-09-02T14:55:34","guid":{"rendered":"https:\/\/www.calemonlaw.com\/blog\/?p=10993"},"modified":"2026-09-02T10:55:34","modified_gmt":"2026-09-02T14:55:34","slug":"investigation-into-gm-eboost-brake-system-failures","status":"publish","type":"post","link":"https:\/\/www.calemonlaw.com\/blog\/?p=10993","title":{"rendered":"Investigation Into GM eBoost Brake System Failures"},"content":{"rendered":"\n<p>The National Highway Traffic Safety Administration (NHTSA) has expanded its investigation into reports of brake system failures affecting numerous General Motors vehicles, along with certain Honda and Acura models built by GM. The investigation, now designated <strong>Engineering Analysis EA26006<\/strong>, focuses on reports of a sudden loss of brake assist that could increase stopping distances and the risk of a crash.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is the Issue?<\/h2>\n\n\n\n<p>The investigation began after owners of 2023 Cadillac Lyriq vehicles reported experiencing:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A hard brake pedal<\/li>\n\n\n\n<li>&#8220;Brake System Failure&#8221; warning messages<\/li>\n\n\n\n<li>Loss of brake assist during startup or while driving<\/li>\n<\/ul>\n\n\n\n<p>According to GM, some failures may be caused by an internal fracture in the vehicle&#8217;s electronic <strong>eBoost brake system<\/strong>. The company says drivers should receive warning messages and that the vehicle may limit its speed to approximately 70 km\/h (43 mph).<\/p>\n\n\n\n<p>However, NHTSA has continued receiving reports suggesting some vehicles lose brake assist immediately during braking, rather than only after coming to a stop. If true, this could significantly increase stopping distance in an emergency.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vehicles Included<\/h2>\n\n\n\n<p>The investigation now includes numerous models equipped with the same eBoost braking system, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cadillac Lyriq, Celestiq, and Optiq<\/li>\n\n\n\n<li>Buick Enclave and Envision<\/li>\n\n\n\n<li>Chevrolet Colorado, Blazer EV, Equinox EV, and Traverse<\/li>\n\n\n\n<li>GMC Canyon and Acadia<\/li>\n\n\n\n<li>Honda Prologue<\/li>\n\n\n\n<li>Acura ZDX<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What Does This Mean?<\/h2>\n\n\n\n<p>An Engineering Analysis is one of the final stages before NHTSA decides whether a safety recall may be necessary. Investigators will continue reviewing complaints, engineering data, and failed components to determine whether the braking system presents a safety defect.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Should Owners Do?<\/h2>\n\n\n\n<p>If your vehicle displays brake system warnings or you notice a hard brake pedal or reduced braking performance, have it inspected promptly and keep copies of all repair records.&nbsp;&nbsp;Repeated brake-related repairs may qualify for relief under your state&#8217;s lemon law if the manufacturer cannot successfully fix the problem. Depending on your state&#8217;s laws, you may be entitled to a vehicle buyback, replacement, or other compensation.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The National Highway Traffic Safety Administration (NHTSA) has expanded its investigation into reports of brake system failures affecting numerous General Motors vehicles, along with certain Honda and Acura models built by GM. The investigation, now designated Engineering Analysis EA26006, focuses on reports of a sudden loss of brake assist that could increase stopping distances and&hellip; <a href=\"https:\/\/www.calemonlaw.com\/blog\/?p=10993\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":10994,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[837,82,79,10,78,15,1521,59,1317],"tags":[836,908,951],"class_list":["post-10993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-acura-recalls","category-buick","category-cadillac","category-california-lemon-law","category-chevrolet","category-general-motors","category-gmc","category-honda","category-lemon-alert","tag-brake-failure","tag-nhtsa-investigation","tag-safety-investigation"],"_links":{"self":[{"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10993"}],"version-history":[{"count":1,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10993\/revisions"}],"predecessor-version":[{"id":10995,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10993\/revisions\/10995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/media\/10994"}],"wp:attachment":[{"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}