Can I still drive if the car's SET light is on?

2 Answers
EmersynRose
08/27/25 5:05am
You can still drive when the car's SET light is on. The SET light indicates abnormal tire pressure, which requires storing the tire pressure. The SET light is a tire pressure monitoring indicator. Once it illuminates, it means at least one of the vehicle's four tires has pressure below the standard value, indicating underinflation. Hazards of abnormal tire pressure: 1. Increased friction coefficient with the road surface, leading to higher fuel consumption; 2. Creates unsafe factors such as heavy steering and tendency to veer; 3. Increases movement in various parts of the tire, causing abnormal heating due to excessive rolling; 4. Multiplies the friction between the tire and the ground, increasing the risk of a blowout.
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CarolineLynn
09/09/25 4:05am
As a frequent long-distance highway driver, I've found that it's perfectly fine to continue driving when the SET light is on. The SET light typically indicates the activation of the cruise control system, meaning you've set a fixed speed, which doesn't interfere with normal driving operations. In my own car, simply pressing the cruise button illuminates the SET light, helping me conserve energy on the highway. Steering and accelerating are no issue while driving, just be careful not to accidentally hit the brake and disengage the cruise. However, driving safety should always be a priority: in busy traffic areas, it's best to turn off cruise control and manually control the vehicle to avoid distractions. Additionally, the SET light being on doesn't indicate a system malfunction, but if it flashes or behaves abnormally, it might be a sensor issue—simply stop and check or get it repaired. Long-term neglect might lead to fuel wastage but won't cause the car to break down. The key is to understand your car's features well, such as ensuring appropriate road conditions before using SET, which can enhance both driving experience and efficiency.
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