Today I took my car to the car wash and while they were vacuuming the car I went across the road to the corner store, while in the corner I realized I still had the key in my pocket, I ran back to the car wash knowing that they r gonna need to move the car, when I got there they had already moved the car. This made me wonder how far can the car be driven without the key being present? Can anyone can shed some light?

 

I think they just never turned the car off - you were too far away for them to be able to restart it if they had turned it off. A lot of car washes see the keyless start feature and just don't turn the car off.

Dave Mac

 

So under that circumstance if someone decided to make off with the car they could keep going until they ran out of gas?

I would like to think the motor would shut off after reaching a certain distance between the proximity device and the car but perhaps thats not the case.

 

It can go as much gas you have in the tank.

 

It's actually a good thing, twice now my wife in her car and mine with key less have stopped somewhere and the other jumps over and drives away forgetting the other has the key.

It will run for as long as the car is not shut off.

 

Hey no to but in but i had the same experience at my mechanic. And i have a 430! So you mean to tell me if i'm not in it the car and somone just jumps in it will just RUN til its outta gas?

 

That's right - the car will run until the tank is empty. The smart key only starts the car, it doesn't keep it running. I don't even think someone can start the car if the holder of the smart key is standing just outside of the car.

Dave Mac

 

I did not understand this "out of gas" thing

does it mean the gas door will not open from inside while the engine is running and the key is not detected.


A more accurate answer is that the car will run until the engine is turned off, because if some one stole the car he will refuel.

Actually I don't understand the point of the thread.

I mean do we expect the engine to trip if the electronics could not detect the key. If yes wouldn't that be dangerous?

 

MythBuster, I was told by my dealer (and I'm sure others here) that if I went into a say a gas station and left the car running for a second while standing outside, if someone jumped in the car and drove off (my Lexus trained dealer said) the car would shut off in a few blocks or less so someone could not steal it. We know now that is simply not true.

Who knows but if the car were never shut off it may run forever without the electronic key. I would just take a guess and say the fuel door would open. It's also possible the car does shut off after a certain time frame? wHAT WE DO KNOW IS WHAT THE DEALER TOLD ME IS INACCURATE.

I felt great knowing I could let the car run, letting the air or heat run in the car keeping it comfortable while I ran into a convenience store for a minute knowing my car could not be stolen because I had the electronic key, but that is simply not true.

I'm going to answer the next post because I don't feel like hearing about it; why would you keep your engine running and not be in the car, thats unsafe, irresponsible, negligent and just plan dumb.

 

you burned my cards

 

But to my knowledge nothing shuts the engine off including high temperature and low oil level which will damage the engine.

 

It follows then that if the key-less operator (thief or otherwise) refuels the car before it runs out of gas, the car can travel for a very long time and distance indeed...

 

Sorry about this (my 4th post) but I still did not make my point

If we think of the other side, Lexus will be liable if the electronics blipped thinking that the key is not inside the car when the key is actually inside the car and requested engine to trip. Depending how fast you were driving when the engine trips you could have a serious accident.

Nobody in his right mind will design a car where the engine trips if undesired situation is discovered.

It is easier for Lexus to hold you responsible for not shutting the engine rather than the driver hold them responsible for having a fatal accident because the engine triped unexpectedly.

 

This is one of those things with the SmartAccess system and the LS quiet engine, which has led to some drivers parking their car at the supermarket, going shopping, and coming back to realize that they (carelessly) left the engine running. But IIRC the car will not lock if the engine is still on...?

 

One word:

LoJack