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The video above shows you how to replace the battery in your 2010 Mazda 3. We recommend changing the battery in Mazdas every 4 years. Although some batteries last much longer, most batteries begin breaking down chemically after four years, so you could experience dimmer headlights and other negative effects before you have a dead battery in your 3 that you need to replace.
Replacing the battery in your 3 involves removing the terminals. When you reconnect the terminals, your radio presets are likely to be cleared out. In some 3s, you may need to re-enter a security code to get your radio to work again. Check for this code in your owners manual - it will usually be either a sticker or small card in the booklet. If you can't find it, call Mazda and they will give you the code for free. In many Mazdas, the transmission "learns" how you drive over time and makes adjustments, so you may experience altered driving dynamics as your car re-learns your driving style after changing the battery.
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2010 Mazda 3 i 2.0L 4 Cyl.
Stop! Checking your brake fluid from time to time is a great way to ensure safe stopping2010 Mazda 3 i 2.0L 4 Cyl.
Small bulbs that burn out regularly - did you know you can replace these with LED lights?2010 Mazda 3 i 2.0L 4 Cyl.
White light when you back up - yup, they burn out and you can replace them with bright LEDs2010 Mazda 3 i 2.0L 4 Cyl.
Transmissions that leak fluid usually have never been flushed and the seal is finally leaking. The right stop leak product can cure a lot2010 Mazda 3 i 2.0L 4 Cyl.
The best way to fix leaking hoses is to replace them, but if you don't have time, a stop leak product might work for you2010 Mazda 3 i 2.0L 4 Cyl.