{"product_id":"dorman-vehicle-speed-sensor-vss-replacement-for-gm-cars-and-vans-direct-fit-917-644-restores-speed-readings-shift-timing","title":"Dorman Vehicle Speed Sensor VSS replacement for GM cars and vans, direct-fit 917-644 — restores speed readings \u0026 shift timing","description":"\u003cp\u003e\u003cstrong\u003eThe Dorman 917-644 Vehicle Speed Sensor is a direct-fit replacement sensor engineered to restore accurate vehicle speed readings and compatible with a wide range of GM-era cars and vans.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your speedometer, transmission shift points, or cruise control are acting up, the vehicle speed sensor (VSS) is a common component to check. Dorman designed this aftermarket sensor to match the original equipment's mounting and electrical interface, providing a straightforward swap for supported Buick, Chevrolet, Cadillac, Pontiac, Oldsmobile and Saturn models. Before ordering, confirm fitment by entering your vehicle’s exact make, model and trim in the garage tool.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this sensor affect my vehicle's performance?\u003c\/h3\u003e\n\u003cp\u003eA functioning speed sensor supplies the engine and transmission controls with accurate speed data used for shift timing, speedometer readout and some stability systems. Replacing a faulty sensor can return normal shifting behaviour and correct dashboard displays without additional reprogramming on most vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores precise vehicle speed signal to ECU and transmission module.\u003c\/li\u003e\n  \u003cli\u003eHelps correct erratic or frozen speedometer readings.\u003c\/li\u003e\n  \u003cli\u003eCan resolve irregular gear changes caused by bad speed input.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles does the Dorman 917-644 fit?\u003c\/h3\u003e\n\u003cp\u003eThis part is built to match the original sensor for numerous GM-platform vehicles from the 1990s through early 2010s. Compatibility includes multiple models across Buick, Chevrolet, Cadillac, Pontiac, Oldsmobile and Saturn — verify exact years and trims in the vehicle lookup before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon Buick fits: Century, LeSabre, Lucerne, Regal, Rendezvous and more.\u003c\/li\u003e\n  \u003cli\u003eChevrolet coverage includes Camaro, Impala, Monte Carlo, Uplander and others.\u003c\/li\u003e\n  \u003cli\u003eAlso fits select Cadillac, Pontiac, Oldsmobile and Saturn applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and quality highlights?\u003c\/h3\u003e\n\u003cp\u003eDorman manufactures this replacement sensor using components chosen for longevity and consistent electrical output. The part aims to mirror the original sensor’s connection, mounting, and signal characteristics to minimize installation complications and provide dependable operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for a matching fit and electrical compatibility.\u003c\/li\u003e\n  \u003cli\u003eDurable materials and connectors to resist road and engine-bay exposure.\u003c\/li\u003e\n  \u003cli\u003eBacked by product support and industry experience from Dorman’s technicians.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I prepare?\u003c\/h3\u003e\n\u003cp\u003eInstallation is generally straightforward for anyone comfortable working under the vehicle or in wheel well areas. Typical installation requires basic hand tools and a few precautionary steps to avoid damage to the connector or sensor housing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrepare jack stands or ramps if access from underneath is needed.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery briefly when handling electrical connectors for safety.\u003c\/li\u003e\n  \u003cli\u003eRemove retaining hardware, swap the sensor, then verify electrical connection and test drive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Dorman 917-644 is suited to DIY mechanics, independent repair shops and fleet maintenance teams seeking a reliable replacement for a failing vehicle speed sensor on compatible GM-based cars and vans. If your vehicle shows speedometer errors, shifting faults, or cruise control inconsistencies and the vehicle lookup confirms fitment, this sensor provides a cost-effective alternative to dealer parts while matching the original fit and function.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the Dorman 917-644 fix a non-working speedometer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If the fault is a failed speed sensor, replacing it often restores speedometer operation. Confirm fitment with the vehicle lookup first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need a scan tool after installing this speed sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most vehicles will work without programming, but some systems may benefit from clearing codes or verifying sensor signal with a scan tool.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":48084415021214,"sku":"B00FY7Z2C0","price":32.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dorman-917-644-front-view.jpg?v=1785854602","url":"https:\/\/northtrailauto.ca\/products\/dorman-vehicle-speed-sensor-vss-replacement-for-gm-cars-and-vans-direct-fit-917-644-restores-speed-readings-shift-timing","provider":"North Trail Auto","version":"1.0","type":"link"}