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What does it mean when the TC light is on in a Buick business vehicle?

1 Answers

EmmettAnn

07/30/25 4:04am

When the TC light is on in a Buick, it indicates a fault in the vehicle's traction control system. Possible causes for the TC light being on include: 1. Solenoid valve: A malfunction in the solenoid valve; 2. Filter screen: Dirty engine oil clogging the solenoid valve's filter screen; 3. Gear and impeller: Wear in the actuator gear and impeller leading to oil pressure leakage and triggering an alarm; 4. Dirty throttle: The engine computer misjudging a TC fault. Additional relevant information is as follows: 1. Introduction: Buick is an automobile brand under General Motors, founded in 1900 in Detroit, Michigan, USA. 2. Features: Buick is known for its high horsepower, individuality, practicality, and maturity. Its models include the Excelle, Regal, LaCrosse, GL8, Highlander, Enclave, Encore, and others.

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