What is the SVS warning light?

[MalachiLee]

SVS is the engine malfunction indicator light. Below are the specific reasons why the engine warning light may illuminate: 1. Poor combustion: Suboptimal engine combustion is the primary cause of the engine warning light activation. To ensure the engine operates in good condition and maintains normal service life, oxygen sensors are installed to monitor combustion status. If combustion quality deteriorates—such as excessive hydrocarbon gas, carbon monoxide, or nitrogen oxide levels—it not only pollutes the environment but also leads to fuel waste and excessive engine wear. 2. Engine knocking: The engine is equipped with a dedicated knock sensor to monitor knocking. Engine knocking indicates potential severe mechanical damage or significant power loss. Typically, knocking is categorized as detectable or undetectable. In cases of undetectable knocking, the engine control unit adjusts parameters to mitigate adverse effects. However, when undetectable knocking exceeds the control unit's adjustment capacity, the engine warning light will illuminate as an alert.

[Josephine]

I've been driving for over a decade, and the SVS light is a pretty common warning indicator, meaning the vehicle needs service soon. Last time my car had this light on, it was due to low oil pressure, and replacing the oil pump fixed it. It can be triggered by various issues, such as emission control system faults, clogged catalytic converters, or faulty sensors like the oil pressure sensor. For safety, never push through and drive long distances when it's on—pull over immediately to check the oil level and top it up if low, or the engine could suffer serious damage. Regular maintenance like oil changes and filter checks is recommended to prevent such issues. Modern car dashboards are getting smarter, and the SVS light is essentially telling you it's time to visit the repair shop.

[DelAngelo]

The SVS warning light coming on basically means the vehicle needs inspection or repair. Common causes include low oil pressure, unstable battery voltage, or engine control system errors. For handling, I recommend first checking the oil dipstick to see if the level is sufficient; if the oil level is normal, inspect whether the fuses or sensor wiring are loose; if that doesn't work, use a diagnostic tool to read the fault codes. Remember not to drive long distances with the light on to avoid greater damage. Regular maintenance can prevent such troubles, such as changing the oil and checking the battery every 5,000 kilometers.

[McEmiliano]

The SVS light indicates that the vehicle needs servicing soon, don't ignore it. Stop and inspect immediately when the light comes on, it could indicate oil issues or emission faults. Go directly to a repair shop. Safety first.