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What does it mean when the 'set' light is on in a Volkswagen car?

3 Answers

MacJanelle

07/30/25 2:53am

When the 'set' light is on in a Volkswagen car, it means the tire pressure is too low. Effects of low tire pressure: Low tire pressure increases tire body deformation, easily causing cracks on the tire sidewalls. It also generates flexing motion, leading to excessive heat buildup, which accelerates rubber aging, fatigue of the cord ply, and cord breakage. Additionally, it increases the tire's contact area with the ground, accelerating shoulder wear. Effects of high tire pressure: Excessive tire pressure overextends the tire cords, reducing the tire body's elasticity. This increases the load on the car while driving, and impacts may cause internal cracks or blowouts. High pressure also accelerates tread wear and reduces puncture resistance.

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DanielLynn

08/16/25 9:14am

Hey, I often encounter this with my Volkswagen. The SET light on the dashboard most commonly appears when you accidentally press the cruise control button. Last time on the highway, I thought it was a malfunction, but it turned out my finger brushed against the cruise control lever on the left side of the steering wheel. This light indicates the cruise system is ready but not yet activated. If you don't want to use it, find the button with a speedometer icon on the steering wheel or lever and press it to turn it off. In rare cases, it could be a tire pressure monitoring alert, in which case an exclamation mark inside parentheses will also light up nearby. If you're sure you didn't accidentally press the cruise control button, it's best to check the manual or have a repair shop read the fault codes, as a constantly lit light can interfere with diagnosing other issues.

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RhettFitz

10/22/25 2:09am

The SET light on a Volkswagen vehicle is mostly related to the cruise control function. I've helped friends deal with this several times. This light usually indicates that the cruise system is in standby mode. For example, when your speed exceeds 30 km/h and you press the RES/SET button on the steering wheel, the preparation light will activate. Additionally, it's important to distinguish that some models use this same indicator for tire pressure reset: hold the SET button near the gear lever for a few seconds until the light flashes, indicating that the new tire pressure value is being stored. If the light stays on continuously and you haven't accidentally pressed the cruise button, it might be a sensor communication fault. First, try repeatedly turning the cruise control switch on and off. If that doesn't work, connect a diagnostic computer to check for specific module issues.

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