My elderly father keeps running down the battery on his Lexus, because he leaves the car without turning off the lights, or turning off the seat warmers, etc. It seems to me the Lexus should be smart enough to turn off the lights, etc., if you leave the car. Is there a way to configure the car to at least ring an alarm if you leave the lights on?
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Re: Battery keeps running down.
Yes, there are aftermarket chimes, and there is also a battery level shutoff, when voltage under 8V is sensed, it will stop the battery from working until you put a key in the ignition.
The IS 300 should have a lights on chime minimally. Is the radio a factory one?
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It's just the annoying light because you are due for service soon. Lexus programs all of their cars to "tell you" when service is due. To turn it off, hold down the odometer reset button and press the start engine button WITHOUT your foot on the brake. Keep holding the odometer button for about 5 seconds until you see the mileage flash. Then it will go off.
if your battery maintainer(charger)has the capability to charge from a higher charge to lower charge as the battery gets charged up and shut off when proper voltage is attained then you can leave the battery in the car as every time you disconnect it you have to reset everything in the car.some now can detect when to turn off and turn on as the car sits and voltage drops to low.don`t know which ones do and don`t someone may be able to answer that if they know about them.
there 2 things that could possibly causing your problem either the battery you just bought isn't good aare you've got and alternator problem... Are you've been leaving something turned on, on the car that runs down the battery. let me know what happens.. Most of the Lexus have those problems.
You have overcharged the power to the cars on board computer and confused it. Remove both battery connections and leave to stand overnight preferably, this in most cases resets the computer and will turn the lights off.
The thing is once you triggered them the computer is told to not turn them off without the help of a dealer. Removing the power source from the computer for a short time wont do anything as the car has a small battery within the ECU to keep it going, 24hrs is normally enough.
It sounds like you have loose belt(s). When the A/C is turned on, it puts a big load on the belt, if it is loose and starts slipping and squeeling, then the alternator won't turn, so the battery runs down as you drive. Make sure all your belts and battery terminals are tight.
You can disconnect your battery for a short period of time, 5-10 minutes should do it. There is no guarantee that the check engine light will not come back on in time, but it will make it go away at least temporarily.If you go to Autozone, 99% of the time they will hook up a code reader and diagnose your problem. It may be a minor and/or inexpensive fix. Please vote appropriately and leave feedback. I hope this helps and good luck.
(bad factory design) First keep large items from under your seat make sure nothing is hanging down or loose check each wire manually softly wiggle from side to side and up and down if something is loose more than likely that particular wire is the problem under there second make sure your passengers aren't placing shoes /feet under you seat and kicking the sensors or motor. you may need to change the seat temp sensor it has a fuse in it that is going bad from wear n tear or from leaving heated seat on after exit and shorting out when you turn on vehicle may be cheaper to go to junk yard and replace your seat(s) electronics for about $15- $35 when you clip the sensor wires make sure you leave enough wire to work with when you install same thing leave some existing wire to work with and cap off any loose wires with heat shrink wire protectors or gel wire protectors also change your fuse for your seats heat feature located in the fuse panel box remember to disconnect your battery before performing any electric maintenance. now here is the trick you need to get some tie straps and strap everything you see under seat up away from pesty passengers feet and from anything you may place under your seat If this doesnt work change out your seats from Junk Yard the seat wires my have a short in them and you cant get to all of em without destroying the seat(s) integrity