{"id":10875,"date":"2026-02-24T15:18:19","date_gmt":"2026-02-24T19:18:19","guid":{"rendered":"https:\/\/www.calemonlaw.com\/blog\/?p=10875"},"modified":"2026-02-24T15:18:19","modified_gmt":"2026-02-24T19:18:19","slug":"transmission-control-valve-may-lock-rear-wheels-in-2022-gm-suvs","status":"publish","type":"post","link":"https:\/\/www.calemonlaw.com\/blog\/?p=10875","title":{"rendered":"Transmission Control Valve May Lock Rear Wheels in 2022 GM SUVs"},"content":{"rendered":"\n<p><strong>NHTSA Campaign Number: 26V-085<\/strong><\/p>\n\n\n\n<p>Owners of certain <strong>2022 Cadillac, Chevrolet, and GMC full-size SUVs<\/strong> should be aware of an important new safety recall involving a potentially dangerous transmission defect. According to the National Highway Traffic Safety Administration (NHTSA), a problem with the transmission control valve in affected vehicles may cause the <strong>rear wheels to lock while driving<\/strong>, significantly increasing the risk of a crash.<\/p>\n\n\n\n<p>This recall affects several of General Motors\u2019 most popular SUV models equipped with a <strong>10-speed automatic transmission and Electronic Transmission Range Select (ETRS)<\/strong> system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vehicles Affected by Recall 26V-085<\/h2>\n\n\n\n<p>The recall applies to the following <strong>2022 model year vehicles<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chevrolet Tahoe<\/li>\n\n\n\n<li>Chevrolet Suburban<\/li>\n\n\n\n<li>GMC Yukon<\/li>\n\n\n\n<li>GMC Yukon XL<\/li>\n\n\n\n<li>Cadillac Escalade<\/li>\n\n\n\n<li>Cadillac Escalade ESV<\/li>\n<\/ul>\n\n\n\n<p>Only vehicles equipped with the <strong>10-speed transmission with ETRS<\/strong> and built within a specific production window are included.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is the Transmission Control Valve Problem?<\/h2>\n\n\n\n<p>General Motors determined that a <strong>defect related to motor vehicle safety<\/strong> may exist in certain vehicles due to excessive wear inside the transmission control valve body.<\/p>\n\n\n\n<p>Over time, internal components of the valve may wear prematurely, which can lead to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Loss of hydraulic pressure inside the transmission<\/li>\n\n\n\n<li>Unexpected valve movement<\/li>\n\n\n\n<li>Harsh or abnormal shifting behavior<\/li>\n<\/ul>\n\n\n\n<p>In rare situations, this condition may cause the <strong>rear wheels to momentarily lock \u2014 or remain locked until the vehicle stops<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why This Defect Is Dangerous<\/h2>\n\n\n\n<p>Rear wheel lockup while driving can cause a driver to lose control of the vehicle, particularly at highway speeds or during turns.<\/p>\n\n\n\n<p>According to the NHTSA:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>If the rear wheels lock up while driving, there is an increased risk of a crash.<\/p>\n<\/blockquote>\n\n\n\n<p>GM is aware of <strong>at least one reported crash<\/strong> potentially linked to this issue, though no injuries have been reported.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Warning Signs Drivers May Notice<\/h2>\n\n\n\n<p>Drivers may experience warning symptoms before a serious failure occurs. These include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Harsh or rough shifting<\/li>\n\n\n\n<li>Sudden or aggressive downshifts<\/li>\n\n\n\n<li>Unusual transmission behavior<\/li>\n<\/ul>\n\n\n\n<p>However, because the defect involves internal wear, symptoms may develop gradually and may not always provide sufficient warning before a lockup event.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Caused the Problem?<\/h2>\n\n\n\n<p>GM\u2019s investigation found that transmissions manufactured between <strong>April 2022 and September 2022<\/strong> contained <strong>unique internal hardware<\/strong> that may accelerate wear inside the transmission control valve.&nbsp;&nbsp;Additionally, affected vehicles were <strong>not equipped with diagnostic software<\/strong> capable of detecting early valve wear.<\/p>\n\n\n\n<p>Excessive wear can create a fluid leak inside the valve body, causing a pressure drop that allows internal transmission valves to move unexpectedly \u2014 leading to wheel lockup in extreme cases.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How the Recall Was Discovered<\/h2>\n\n\n\n<p>The issue came to light after a customer reported a transmission lockup through GM\u2019s internal <strong>Speak Up for Safety (SUFS)<\/strong> reporting system on November 5, 2025. The incident allegedly caused a loss of vehicle control and a collision with a guardrail.&nbsp;&nbsp;GM opened a formal investigation later that month and reviewed field data spanning nearly two years.&nbsp; Investigators identified <strong>13 field reports<\/strong> potentially related to the condition between November 2023 and October 2025, with 12 involving the affected 2022 SUV models.<\/p>\n\n\n\n<p>On <strong>February 5, 2026<\/strong>, GM officially authorized a safety recall.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Recall Remedy: What Dealers Will Do<\/h2>\n\n\n\n<p>To correct the problem, GM dealers will:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Install updated <strong>Transmission Control Module (TCM) software<\/strong><\/li>\n\n\n\n<li>Improve monitoring of valve performance and wear<\/li>\n\n\n\n<li>Perform repairs<\/li>\n<\/ul>\n\n\n\n<p>Owner notification letters are expected to be mailed beginning <strong>March 30, 2026<\/strong>.&nbsp;&nbsp;<strong>GM Recall Number:<\/strong> N252536750 ;&nbsp;<strong>NHTSA Campaign Number:<\/strong> 26V-085.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Owners Should Do Now<\/h2>\n\n\n\n<p>If you own one of the affected vehicles:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Watch for recall notification letters in the mail.<\/li>\n\n\n\n<li>Contact your local GM dealership to confirm recall eligibility.<\/li>\n\n\n\n<li>Schedule the software update as soon as possible.<\/li>\n\n\n\n<li>Pay attention to harsh shifting or unusual transmission behavior and seek service immediately if symptoms appear.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Final Thoughts<\/h2>\n\n\n\n<p>Full-size SUVs like the Tahoe, Yukon, and Escalade are often used for family transportation and long-distance travel, making drivetrain reliability especially important. While GM reports that rear wheel lockup events are rare, the potential safety risk is significant enough to warrant immediate attention.&nbsp;&nbsp;If your vehicle is included in Recall 26V-085, scheduling the repair promptly is the safest course of action.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NHTSA Campaign Number: 26V-085 Owners of certain 2022 Cadillac, Chevrolet, and GMC full-size SUVs should be aware of an important new safety recall involving a potentially dangerous transmission defect. According to the National Highway Traffic Safety Administration (NHTSA), a problem with the transmission control valve in affected vehicles may cause the rear wheels to lock&hellip; <a href=\"https:\/\/www.calemonlaw.com\/blog\/?p=10875\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":10877,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,79,10,78,15,1521,1317],"tags":[272,600,1421,1621,728,901],"class_list":["post-10875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-miscellaneous","category-cadillac","category-california-lemon-law","category-chevrolet","category-general-motors","category-gmc","category-lemon-alert","tag-cadillac-problems","tag-chevrolet-problems","tag-difficult-shifting","tag-general-motors","tag-gmc-problems","tag-transmission-problems"],"_links":{"self":[{"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10875","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=10875"}],"version-history":[{"count":1,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10875\/revisions"}],"predecessor-version":[{"id":10876,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/10875\/revisions\/10876"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=\/wp\/v2\/media\/10877"}],"wp:attachment":[{"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.calemonlaw.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}