What year make and model? Some common brands FOB (the box not the key blade) are found in AutoZone. If your key blade is built into the FOB most likely The Lock Shop on Hwy 111 and San Pablo in Palm Desert or your dealership.
Try Home Depot or the Palm Springs Walmart. You can have a key transponder made for almost 50% off the dealer price.
No only in the dealership cars
Only the dealership has those and they are expensive I had to change the battery on mine and it works perfectly
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