aftermarket keyfob ?

Question

saw this while flying home tonight in one of those magazines they give you to keep you distracted from the fact that you're tearing through the atmosphere at 500+ mph in a tin can:

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Here's an excerpt:

-------- _The Car Alarm Remote Duplicator._ Imagine the jam you'd be in if your car alarm remote were broken or lost ... The Autobahn is compatible with any system. Just place your existing remote next to the Autobahn remote, press the alarm, keys and match the frequencies. Presto! You have a new remote with all the same functions. Universal Remote Control Alarm/Door Key

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IIRC, Saturn RKE systems use a rolling code, similar to modern garage door openers - which means that you can match the frequency all day long and nothing will happen except to lockout the RKE system for a few minutes because of multiple failed attempts on the frequency it is waiting for a code from?

Is the rolling code thing a myth? Is it easily mimiced or duplicated as this product describes?

-rj

98SL2

Jonnie Santos · Accepted Answer

...almost as much fun and finding an older Isuzu Trooper in the parking lotand pressing my OEM remote buttons and hearing the Trooper set its alarmoff...  (grin)>

Robert Hancock · Answer

Maybe on some car ALARM systems this would work (though it would have to bepretty cheesy), but I can't see how this would work with an RKE system. Thedata sent by the remote on one unlock command does not give you anyinformation about what should be sent to unlock the doors again.

Oppie · Answer

According to the owner's manual on my '01 lw300, there is a different code every time the button is pressed. This makes it harder on the bad guys since they can't just sit in a busy parking lot with a scanner and record codes (to play back later and get access to your car). The manual has a section on re-synchronizing the fobs if they ever get out of whack. Oppie

aftermarket keyfob ?

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