My Smart car battery is flat can I bump start it? Total failure of the alternator is another possibility. Jump to Latest Follow 1 - 20 of 26 Posts. There is a problem with the alternator : The alternator is used to charge the battery and help power the electrical system while the engine is working. The voltage in the battery will drop, which causes the Battery Light to come on. Owner Daimler then went on to manufacture a 4 seat variant, the Smart Forfour and later an electric version of the Fortwo and Forfour. I brought in my Smart ED with 40% on the battery - as I read somewhere that they would need to perform a full drain and recharge during the battery test. First things first: if the battery light comes on in your car when you turn it on, you probably have nothing to worry about. What it means: This warning light can have a lot of different meanings depending on which car model you have.In most car models, it says that there is a minor problem with your engine. The battery warning light in most cars indicates there is problem with the charging system as a whole, not just the battery. My smart entry dash warning light came on. I am closing in on 10,000 miles and I am now seeing a "wrench" symbol when I first start up the car. In some cars, it’s just a warning light that is telling you it’s time for scheduled service (like oil replacement, spark plug replacement, etc. I replaced the battery anyway because it … 23 Posts . If this is the case, pay it no mind. If you were just making a quick run to the supermarket or are a few minutes away from work, you can probably make it. It sounds to me like you have a problem with your alternator. Discussion Starter • #1 • Dec 29, 2011. But when I got in the car after buying the battery, the light had gone off. ). Sometimes the battery light will come on when you start your car, but then the light will quickly flick off. I have a 2016 Honda HRV. I also couldn’t get the car back charging. Key fob battery did seem to be getting a bit slow. [450] Applies to: Answer: Yes, see page 261 of the 450 manual. If the battery light comes on and stays on while you are driving, the most common cause is a broken alternator belt. I bought a new battery for it. Smart Car Dashboard Warning Lights The 2 seater Smart Car was first introduced in 1998 in the form of the Smart Fortwo. Putting the charger back on the car cause the malfunction warning to appear on the charging screen. No engine. The battery light indicates a battery charging problem. An hour later, the car starts up like nothing had ever been wrong. This is not the case. If this happens, it could be time to contact a mechanic for a battery replacement. Additionally, the Smart Car service interval indicator system is algorithm-driven, and takes into account the differences between light and extreme driving conditions, load weight, towing, or weather conditions - important variables that affect oil life. 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