First, you need to find it. Under the hood it will either just be in plain sight, or under a panel, probably with a plus and minus sign on it. Once you find it, take off the leads. There should be a bolt you can un-tighten and if you can't get those undone then a fair amount of wiggling should do the trick. Remember, these feeds will not shock you as long as you don't touch both at the same time. After you have the leads off, there might be a bolt or a couple bolts that hold the battery down. When you have it out, just take it down to your local autozone or checker autoparts, and they will replace it for you and just reverse these steps to put it back in :) Hope this helps,
Ted
You take it to Walmart and buy a new battery. They will replace it for free.
You need to charge or replace your battery
Lexus manufacturer recommend replace timing belt on Lexus rx300 every 105,000 miles.
need change knock sensor 2 bank 2 in 2000 lexus rx300
Take the new antenna and your RX300 to Circuit City. They will install it for about $50.
at 90K or 8 years.
225.00 a corner.
How do you change the spark plugs in 2001 lexus rx300?
Tune up for 1999 rx300 Lexus
To replace the alternator on a 1999 Lexus RX300, first disconnect the battery to ensure safety. Remove the serpentine belt by loosening the tensioner, then detach the electrical connections from the alternator. Unbolt the alternator from its mounting bracket and carefully remove it from the engine bay. Install the new alternator by reversing the steps, ensuring all connections are secure and the serpentine belt is properly reinstalled.
3 button fob 2003 onwards cr1616
The thermostat on a 2001 Lexus RX300 is replaced by removing the upper radiator hose and unbolting the thermostat housing. The thermostat can then be removed, a new gasket installed, and the replacement thermostat placed in the housing.