Is it safe to have two lexus keys in one car?
08-13-12, 10:12 AM
#17
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There are small dead spots in our vehicles, more so with the larger ES's and GS's, where the smart keys are not detected by the vehicle. I have heard of situations, again, in the ES, not the IS, where ladies will have their keys in their purse, then place their purse in the trunk, and wind up locking their keys in the car that way. A pretty crazy scenario but it has none the less happened.
08-13-12, 01:14 PM
#21
I believe OP is wondering about two different Lexus key fobs from two different vehicles being in one car at the same time. He's wondering if the car would pick up the signal from the wrong key.
This would never happen, as it would cause a MAJOR security issue across all of the smartkey enabled Lexus vehicles. No company would ever allow something like this to get past quality control.
This is how I think the keys work. At the Lexus dealership/service centre, the key is programmed to the car using a specific access code that is unique to the key. So the car will read any Lexus smartkey that is within range, but it will only respond to the key that matches the access code programmed to the car's system.
This would never happen, as it would cause a MAJOR security issue across all of the smartkey enabled Lexus vehicles. No company would ever allow something like this to get past quality control.
This is how I think the keys work. At the Lexus dealership/service centre, the key is programmed to the car using a specific access code that is unique to the key. So the car will read any Lexus smartkey that is within range, but it will only respond to the key that matches the access code programmed to the car's system.
08-13-12, 06:11 PM
#24
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Almost did that with the key in the trunk. If the car is locked and you leave the key in the trunk it will let you open the trunk and get it. If the car is not locked, then you cannot open the trunk from outside, and you have to use the trunk open button in the car. Needless to say when it happened i thought technology let me down, then i noticed the car was unlocked. My friends are still making fun of the "impossible to lock your key" in the is2...
BTW, I have had both keys in the car at the same time and never noticed an issue.
BTW, I have had both keys in the car at the same time and never noticed an issue.
08-13-12, 08:38 PM
#25
I believe OP is wondering about two different Lexus key fobs from two different vehicles being in one car at the same time. He's wondering if the car would pick up the signal from the wrong key.
This would never happen, as it would cause a MAJOR security issue across all of the smartkey enabled Lexus vehicles. No company would ever allow something like this to get past quality control.
This is how I think the keys work. At the Lexus dealership/service centre, the key is programmed to the car using a specific access code that is unique to the key. So the car will read any Lexus smartkey that is within range, but it will only respond to the key that matches the access code programmed to the car's system.
This would never happen, as it would cause a MAJOR security issue across all of the smartkey enabled Lexus vehicles. No company would ever allow something like this to get past quality control.
This is how I think the keys work. At the Lexus dealership/service centre, the key is programmed to the car using a specific access code that is unique to the key. So the car will read any Lexus smartkey that is within range, but it will only respond to the key that matches the access code programmed to the car's system.
I would be interested to know from someone who knows for a fact if our keys are truely unique for every single Lexus in the world.
08-14-12, 01:40 AM
#27
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Having more than one FOB keys from the same/different manufacturer/model will not cause any harm/issue. As each FOB is programmed with a different access code in a different frequency. Your car won't even see or detect it.
08-14-12, 05:08 AM
#28
Lexus Champion
The only LPS tied to the key would be the memory seats (which, of course, isn't an LPS at all)--IF you have memory seats and IF you linked both keys to the memory presets. And I have been in the car when my wife had her key too--nothing happened, and the memory seats worked find.
08-14-12, 05:10 AM
#29
Lexus Champion
You CAN lock the other fob in the car if you lock with the first fob, and not with the door button.
08-14-12, 10:39 AM
#30
Also, given that Lexus probably uses a combination of letters and numbers for the access code, and for all we know the access code could be 7 or 8 characters long, the sheer number of different combinations of codes is enough to guarantee that every keyfob will have it's own unique code. And even if they did run out of combinations, they could just add another number or letter to the code, probably without any other issues.