I own a 2007 Lexus IS250. This morning the car turned on just fine and wife dropped my son off at day care. After she wanted to turn the car back on it completely died (no lights, no alarm). I have checked the battery and it is fine (I bought it 6 months ago).

Do you guys know what the problem could be? Is there a relay that goes out and causes the car to completely turn off? I need help! Thanks

 

When did you check the battery? I understand it's pretty new but was wondering when it was checked. Did you try jump starting it?

 

I checked it just now with a voltmeter and also tried to jump start. No luck at all! The car is completely dead.

 

Now I'm stuck because I can't figure out why a jump from a good running vehicle wouldn't work. Sorry I couldn't help any more.

 

My friend who works at a Lexus dealer told me they sometimes find wires chewed up by rodents in the engine bay. Does the car have any warranty left? Check all fuses too.

 

I haven't looked at the cables just yet. As far as fuses, I don't know if there is a main fuse that can cause the whole electrical system to shut down. Do you guys know if there is any that can do that? I have never experienced anything like it...

 

Is the car able to lock/unlock with the remote?

 

No, everything electrical is dead.

 

If the battery reads 12V, I would check for power in the engine bay fuse box. Check the main fuse. Put that voltmeter to use!

 

my guess is you have a blown fuse if nothing electrical is working and you are sure you checked the battery.

 

Where is the main fuse? Sorry for being a noob

 

I was thinking the same thing, he can also check for a loose ground or positive cable.

 

Main fuse in in engine bay, you could find it near the battery. Good luck!
All fuse location was label in the back of the cover. You should check it and found the main fuse.

 

check out the picture. Fuse box was circled in red

 

There is one big fuse that controls everything! I am guessing this could be the problem since nothing is working... Thank you all!