KARR is a popular brand with a very small product line. This 3 button remote is from their most popular system, the KARR 2040a.
That system is usually found in cars that originated in the West Coast of the US. Many dealerships, especially Toyota dealers used this system as an up-sell for adding either alarm, keyless entry, or both to the vehicle.
Most users only use the center Arm/Disarm button. Some people’s cars have been wired to operate trunk or panic or both.
If you lost your remote or if it stopped working, you can order a replacement remote here. The original KARR ELVAT5H remote has been discontinued but clone replacement remotes with longer warranties are available for less than the originals used to cost.
Clone Replacement for ELVAT5H Remote
If you still have your remote and it works but the plastic is cracked or broken then you can use a Leather Remote Tote or a Remote Skin to re-attach the remote to your key-chain and keep your remote pieces together, protected.