TCSspeedrevJune 6, 2024 « Back to Glossary Index Abbreviation for Transmission controlled spark (GM). Abbreviation for Transmission Control Switch. Abbreviation for Traction Control Switch. Related Articles: Glossary: Vehicle Speed SensorGlossary: Time Delay RelayGlossary: Transmission Control SystemGlossary: Transmission Controlled SparkGlossary: Anti-Spin Regulation« Back to Glossary Index