Lost my honda crv keyless entry remote?

Were can I buy replacement besides dealer?

Since you did not specify the Year for the CR-V so I have no idea what exactly what you'll need. If the fob is separate from the key then you'll need to buy the key fob and program it yourself. If the key and key fob is one unit then you will have to get a new key cut. This site will help to see what you'll need to buy:
http://www.keylessremotefobs.com/honda-cr-v-remotes.htm

There are shells with uncut keys listed for sale. Although some don't appear to have the actual Honda logo on the back, they are the proper shape/size. The only ones I saw for sale with the actual logo also come with the remote tiny circuit board, but it doesn't cost much more. One of the ads specifically mentions that you can't use your old key, and must get a new one cut. It says, "We get this question every day… No other way around it."

For your information: This site is one of so many on the Web:
http://www.autotransponder.com/honda_cr-v_keys_and_keyless_entry_remotes
or:
http://www.ebay.com/...rv+key+fob

Then you'll have the key fob program for the keyless entry to work. If you have other key fobs then all of them has to be program at the same time. In other hand, the key itself has to be programmed also so the security system will recognize the chip inside the key.

This link will show you how to. There are separate procedure for different year, look for the right one on this site:
http://blog.keylessentryremotefob.com/2013/03/2003-honda-crv-key-fob-remote.html

So buy the uncut key fob (Which ever you choose) then your cheaper option is call for a locksmith, explain to him that you have the uncut version key fob and he will cut the new key, reprogram all key fobs and take care of the security system re-programming. Ask before hand if he does all those thing, including "Laser" cut the new key.

Of course, your only option left is the dealer with more to pay. Do not buy the replacement until you work out your option with a locksmith or calling the dealer first as I've seen some prefer to use their part. Good luck to you. E mail if you need more help or have more questions. HTH

Edit: Be careful if this is apply to your CR-V: Read my answer to another member

Try go to the store you purchased it from

You can try amazon or eBay. Only thing is you'll have to find instructions on how to program it.