andcas7

I heard a coworker say she was told it's a no no to have both of her prius' keys in one car at the same time, is it true and is it bad for our cars? Both my friend and I have Lexus and often drive in one or the other with both our keys, never been a problem but if it could cause a problem then we know not to do so. His is a es350 and mine is250.

CrtifiedMD

Really? What could possibly happen?

Quik208

iTrader: (7)

You will be fine.

Slammer1

I can't possible imagine why this would cause an issue..... Both keys are transmitters and send the same signal. Perhaps it's possible to lock your keys in the Prius? Did the friend say why it was bad to have both keys in the Prius?

Initial G

iTrader: (38)

No. Never heard of this being a problem. I've done this in the past a few times and no problems to report of. You should be fine.

SeanIS350

iTrader: (2)

Could it be that personalized settings on the car are programmed to the key??? So if u have both your keys it may be confused whose settings to follow?

RFFG

I've never heard of this happening.

Slammer1

Now that makes sense. Never occurred to me, but sounds like it could be an issue. You would think that one would just override the other if both were in at the same time though.

UniSlayEX

Yeah, but which one has preference. My assumption would be if the car read both it would not change its current settings.

This can be the only issue. I doubt the vehicle has a meltdown if it reads both signals.

As far as two different vehicle keys, I doubt they would interfere.

Kurtz

iTrader: (1)

I'm about 92% sure it uses any keyfob settings of whichever one opens the door... (I suppose if you had both in the pocket of the same person it'd be an issue but hardly one that kept you from using the car)

birador

iTrader: (10)

unless you left your only two keys inside your car and lock it---that's gonna be an issue.

08sgmis350

iTrader: (4)

I'm pretty sure it's fine. Whenever me and my wife go out, I have my own key in my pocket and my wife has 2nd set of key in her purse. No problem so far. You will be fine.

andcas7

I meant my cars key and my friends es350 key in the same car, not the same cars keys, either way i have never had a problem, just curious

laobo979

iTrader: (5)

They probably ment don't have both your key in at the same time. Cause if one left in the car it wont lock if your don't take both. I don't think they ment to different car keys.

Kurtz

iTrader: (1)

How are you going to do that exactly, since it won't lock using the door button if a key is inside the car?

It's virtually impossible to "lock your only keys in your car" on a 2IS (or any smartkey vehicle I would think).