However, you should still take your car in for a diagnosis as soon as possible. It is best to tow your vehicle to the nearest repair facility, as driving at extremely low speeds can … Though there is not much risk with the light coming ON, you should not ignore what your car’s system is trying to tell you. It might be bad O2 sensor or AF sensor. The first thing to look for is the reading on the engine temperature gauge or if the engine temperature warning light is on. What Makes The Check VSC Light To Come On? You will probably fail smog test due to malfunctioning CAT. It can drain the battery, trigger the check engine light, or even prevent the vehicle from starting. Can I drive with the reduced engine power light on? Since each fault code has its own level of severity, it is difficult to predict how many miles you can drive with the warning light on. While less common, it’s possible that your check engine light came on because your engine is overheating or misfiring. Safety Risks When Driving With a Check Engine Light On A serious engine issue can make you a hazard on the road. Here are some reasons. Read on and get informed. A red engine warning light tells you that you have a potentially serious problem, possibly a complete failure of one or more things that can result in damage to your engine if you continue to drive. In this case you must pull over in a safe area and shut the car off. If your BMW check engine light (or service engine soon light) stays on, it means that the Onboard Diagnostic System (also known as Digital Motor Electronics DME) has detected a problem with the emission system, engine, or transmission. Driving with the reduced power light or message displayed is possible, but this feature is called ‘Limp Home’, which is as much as the vehicle should be driven (within reason). Sometimes when the VSC light comes on, it is also accompanied by the ABS light or check engine light. Drive the car for a while and see if the light goes out (note that it may take a couple of restarts of the engine to make the light go out). Technically, you can (usually) drive slowly when Engine Power Reduced is illuminated on the dash. Yes, the lit emission light on car can mean a lot many things! So get them checked too. However, doing so is not recommended. Can I Drive With the Reduced Engine Power Warning Light on? How many miles can you drive with the check engine light? You might experience degraded MPG, stalling, and sluggish acceleration if your CAT is clogged. But there’s more you need to know. Before you know about the safety of driving with the emissions light “ON,” it is essential to understand why did the light pop-up. Even after a repair, you need to drive 50-100 miles for it to clear. This will save the engine from serious internal damage. 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