{"id":9519,"date":"2026-08-21T13:58:04","date_gmt":"2026-08-21T17:58:04","guid":{"rendered":"https:\/\/gm-techlinkfrench.com\/?p=9519"},"modified":"2026-09-21T13:59:28","modified_gmt":"2026-09-21T17:59:28","slug":"boite-de-vitesses-bloquee-en-1re-vitesse","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=9519","title":{"rendered":"Bo\u00eete de vitesses bloqu\u00e9e en 1re vitesse"},"content":{"rendered":"<p>Sur certains mod\u00e8les Traverse et Acadia des ann\u00e9es 2024 \u00e0 2026, ainsi que sur certains mod\u00e8les Enclave des ann\u00e9es 2025 \u00e0 2026 \u00e9quip\u00e9s de la bo\u00eete automatique \u00e0 8 rapports 8T65 (\u00e9quipement facultatif commun (RPO) MF8), la bo\u00eete de vitesses peut se bloquer de mani\u00e8re intermittente en 1re vitesse. Si cela se produit, il faudra arr\u00eater le v\u00e9hicule et passer en position Park (Stationnement) pour r\u00e9soudre le probl\u00e8me (Fig. 3).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9522\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F03-Trans-gear-3.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F03-Trans-gear-3.png 740w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F03-Trans-gear-3-300x195.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F03-Trans-gear-3-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 3<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Le capteur de vitesse de sortie peut envoyer bri\u00e8vement un signal erron\u00e9, ce qui peut entra\u00eener un changement de vitesse irr\u00e9gulier et bloquer le v\u00e9hicule en 1re vitesse jusqu&#8217;\u00e0 ce qu&#8217;on passe en position Park (Stationnement).<\/p>\n<p>Si ce probl\u00e8me survient, commencer le diagnostic en v\u00e9rifiant qu&#8217;aucun code d&#8217;erreur (DTC) n&#8217;est enregistr\u00e9. Si des codes d&#8217;anomalie (DTC) sont enregistr\u00e9s, suivre les proc\u00e9dures de diagnostic indiqu\u00e9es dans les informations d&#8217;entretien correspondantes pour chaque code avant d&#8217;effectuer toute autre r\u00e9paration.<\/p>\n<p>Une fois qu&#8217;il a \u00e9t\u00e9 v\u00e9rifi\u00e9 qu&#8217;aucun code d&#8217;anomalie (DTC) n&#8217;est enregistr\u00e9 et que la bo\u00eete de vitesses reste bloqu\u00e9e en 1re vitesse, remplacer le capteur de vitesse de sortie de la bo\u00eete de vitesses (Fig. 4, n\u00b0 2). Se reporter \u00e0 la section \u00ab Remplacement du capteur de vitesse de sortie de la bo\u00eete de vitesses automatique \u00bb dans les informations d&#8217;entretien.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-9521\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1-1024x656.png\" alt=\"\" width=\"740\" height=\"474\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1-1024x656.png 1024w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1-300x192.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1-768x492.png 768w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1-780x500.png 780w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1-1160x743.png 1160w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F04-Trans-gear-1.png 1263w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 4<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Remplacer le capteur de vitesse de sortie<\/strong><\/p>\n<p>Le capteur de vitesse de sortie est situ\u00e9 derri\u00e8re le corps de l&#8217;\u00e9lectrovanne de commande. D\u00e9poser le couvercle du corps de la soupape de commande, le faisceau de c\u00e2bles, le sol\u00e9no\u00efde d&#8217;inhibiteur de la position Park (stationnement), le corps de l&#8217;\u00e9lectrovanne de commande et le tuyau de transfert de fluide ont \u00e9t\u00e9 retir\u00e9s pour acc\u00e9der au capteur de vitesse de sortie.<\/p>\n<p>Apr\u00e8s avoir install\u00e9 le nouveau capteur de vitesse de sortie, utiliser le lubrifiant Transjel DT-36850-A pour monter les quatre clapets anti-retour \u00e0 bille du corps de la soupape de commande. Ne pas placer les billes de retenue dans les emplacements indiqu\u00e9s par les fl\u00e8ches dans la proc\u00e9dure d&#8217;installation (Fig. 5). Si les billes de retenue sont plac\u00e9es \u00e0 ces emplacements, cela peut nuire \u00e0 la qualit\u00e9 du changement de vitesse.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-9520\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2-1024x686.png\" alt=\"\" width=\"740\" height=\"496\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2-1024x686.png 1024w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2-300x201.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2-768x515.png 768w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2-780x523.png 780w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2-1160x777.png 1160w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/09\/F05-Trans-gear-2.png 1258w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 5<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Se reporter au bulletin n\u00b0 26-NA-192 pour plus de d\u00e9tails, y compris les num\u00e9ros de pi\u00e8ces.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Matt Razz<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sur certains mod\u00e8les Traverse et Acadia des ann\u00e9es 2024 \u00e0 2026, ainsi que sur certains mod\u00e8les Enclave des ann\u00e9es 2025 \u00e0 2026 \u00e9quip\u00e9s de la bo\u00eete automatique \u00e0 8 rapports [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93],"tags":[],"class_list":["post-9519","post","type-post","status-publish","format-standard","hentry","category-2026-august"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9519"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9519\/revisions"}],"predecessor-version":[{"id":9523,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9519\/revisions\/9523"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}