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The video above shows you how to replace the battery in your 2008 Lexus RX350. We recommend changing the battery in Lexuss 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 RX350 that you need to replace.
Replacing the battery in your RX350 involves removing the terminals. When you reconnect the terminals, your radio presets are likely to be cleared out. In some RX350s, 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 Lexus and they will give you the code for free. In many Lexuss, 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.
If you have an electrical component that doesn't work, try replacing the fuse first2008 Lexus RX350 3.5L V6
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2008 Lexus RX350 3.5L V6
Harsh downshifts? Slipping gears? You might be low on transmission fluid2008 Lexus RX350 3.5L V6
If you are leaking oil and parking on your oil spots each night, the oil is breaking down your tires' rubber2008 Lexus RX350 3.5L V6
Coolant hoses wear out over time and need to be replaced - check 'em early and often2008 Lexus RX350 3.5L V6
Cars burn, leak and otherwise dispense of their oil. Check your level frequently and top up when necessary2008 Lexus RX350 3.5L V6