What does the SVS light mean?

2 Answers
VonJackson
07/25/25 2:33pm
SVS light on indicates that the engine control unit has detected an error signal from a certain sensor or that it has exceeded the usage standard. The reasons for the SVS light being on are as follows: 1. Poor engine combustion state, excessive wear. 2. Engine knocking. 3. Poor quality of car fuel. 4. The inside of the engine cylinder is not clean, with accumulated carbon deposits. 5. The electronic control unit cannot obtain engine data. Additional information: When the ignition switch is turned on, the car's SVS indicator light will light up for automatic inspection and will automatically turn off after a few seconds, which is a normal phenomenon. If the SVS light stays on, it indicates a fault in the car's electronic control system.
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JasmineFitz
08/11/25 9:08pm
Hey, whenever I see the SVS light illuminate on the dashboard, I always stay alert. It usually stands for 'Service Vehicle Soon,' indicating an issue with one of the car's systems, most likely a minor fault related to emissions control or the engine. Last time the light came on while I was driving, I immediately slowed down and pulled over to check the dashboard. The coolant temperature was normal, so I tried turning off the engine and restarting it—the light went off. However, the next day, I took it to a repair shop to scan the OBD codes and found out it was due to an aging oxygen sensor. Ignoring it could lead to bigger problems. I recommend that anyone who sees the SVS light come on shouldn't hesitate—first, safely pull over and check for any other warning lights, then head to a professional shop for diagnostics. After all, a car's health is crucial for driving safety, and regular maintenance can help prevent such surprises.
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