Why don't car manufacturers use a different method for keyless entry fobs to avoid radio interference?

With regard to your reply to the problem with the keyless entry system on the Toyota RAV4. This problem is because the car manufactures install these keyless systems which have key fobs that have virtually...

How much are illegal radio transmitters likely to be interfering with keyless car entry systems?

I think you may be wrong about illegal transmitters stopping car keys from working. I believe that the keys work on a frequency of 433.92MHz and use a super-regenerative receiver. The general use of super-regens...

What caused the radio frequency of my Subaru Legacy's keyfob to go 'off beam'?

Last week, when 40 miles from home, my key fob failed to start my 2004 Subaru Legacy. I had to phone my wife to bring the spare key, which worked perfectly. I assumed it was the battery, but the Subaru...

Have you heard of electronic interference with keyless entry systems, such as that on my Toyota RAV4?

My 2008 Toyota RAV4 has a smart entry keyless system. This morning I went into a nearby garage to fill up with petrol and when I attempted to restart the car, I got the message that the key was not present....