GM Remote Transmitters — Frequencies

I was reviewing a Corvette forum not long ago and saw several questions related to remote transmitters used on Corvettes in the last decade. Apparently, someone looked at some GM part catalog information and came away confused because there are so many different remote transmitters listed for any given model year. This is a common problem that even parts managers in GM dealerships voice. Nearly all automotive part catalogs can be very difficult to decipher and GM’s is among the most confusing.

What makes the Corvette remote controls so confusing is that different transmitters were used overseas versus in North America and it is not always easy to determine which are which. One clue is the notation about frequency. Most (but not all) remotes transmitters uses with factory keyless entry systems in North America transmit at a frequency close to 315 mHz. Often, systems used in vehicles sold overseas operated at a higher frequency. So, if you have a vehicle purchased in North America, need a remote, and you see a listing in a GM part catalog for a remote that says “high frequency” or “specific frequency”, it is probably an export part and not the correct remote for your vehicle. If you see the notation “low frequency” it probably is a North American part. To be absolutely certain you buy the correct remote, shop carefully and buy from a reputable source.

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