Battery Warning Light Stays On After New Alternator What S Wrong You've changed your battery or recharged it and all of a sudden, the dashboard warning lights have lit up! don't panic. usually this means that the car is re. Changing a car battery can cause all warning lights to turn on due to a temporary loss of power. this is because the car’s computer system needs time to reset and recalibrate after the battery has been disconnected. if the warning lights do not turn off after a few minutes of driving, there may be an issue with the car’s electrical system.
Battery Warning Light On Dashboard Meanings What Causes It is not uncommon for warning lights to come on after changing a battery, especially in vw cars. there are a few reasons why this may happen: the new battery may not be properly connected. check the terminals to make sure they are tight and clean. the new battery may not be compatible with the car. some vw models require special batteries, so. I would suggest that you pop the hood and see if the battery has anything to identify it as agm or anything else to identify the capacity of the battery. you might also check your receipt to see if there is anything listed there. finally you might want to check the cables going to the battery to see if any are loose. Cleaning off the corrosion from the battery’s terminals. as said, one of the things that may trigger the battery warning light is corrosion buildups on the battery’s terminals. luckily, this is easy to spot and even easier to clean off. step 1 – hook up the car to the battery charger. The alternator belt connects multiple components. however, if cracked or broken due to continuous use or age, the battery light might come on. also, if the belt is misaligned, not well fitted, or too tight, the light can come on. besides the battery light, if the alternator belt is faulty, the car’s hood might squeal when the vehicle is running.
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