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A car locksmith in Melbourne explains how car remotes works

Sales Galmier - Thursday, July 25, 2019

car remote

Car remotes have been around for so long, it’s almost impossible to imagine a time before them.

And like many staples of modern life, many of us don’t really have an in-depth understanding of how they work.

Today, our car locksmiths in Melbourne explain exactly what powers your car remote… as well as how our auto locksmith service can help you should you lose or damage your car remote!

 

Our auto locksmiths in Melbourne explain the basics of car remotes

Just click a single button, and your car and everything inside it is safe from theft. For most, our thoughts on car remotes don’t really go much deeper than that!

As an auto locksmith in Melbourne, we understand that the locksmithing trade - auto locksmiths, in particular - can get bogged down in jargon and industry terms.

Today, we’re going to cut through all the jargon and explain in simple terms just how your car remote works.

How it all works

Both the transmitter (your remote) and receiver (your car) uses 40-bit encryption - this allows manufacturers to generate up to a trillion different possible combinations.

To provide extra security, your car doesn’t just use one code, either. Instead of a single code, the transmitter constantly generates different codes to create what we refer to as a rolling code.

The way it works is this:

  1. Your remote sends a unique, single-use unlock code to the receiver
  2. If this code is valid, your car unlocks
  3. Once the receiver gets the code, it generates a new one (hence the name “rolling” codes)
  4. The receiver communicates the new code to the transmitter, which stores it on memory
  5. Repeat every time you unlock your car

While this may sound like a problem, it pays to remember that both transmitter and receiver are in constant communication. As long as the two are synchronised, you won’t need to worry about your transmitter and receiver coming into conflict.

It’s also thanks to this mechanism that your remote unlocks your car… and yours alone.

 

Common car remote problems

While relatively minor compared to losing your keys altogether, faulty car remotes are still annoying, and can frequently result in mild frustration.

Some examples include…

 

Dead batteries

Car remotes can go a long time without needing to change the batteries. However, no battery lasts forever, and eventually, your car key fob may run out of juice.

In addition to cutting keys and fixing locks, a car locksmith in Melbourne can also replace dead batteries for you. They’ll carry in their van a wide range of batteries, saving you the effort of driving around looking for a shop that stocks the right battery.

 

Broken remote

Your remote contains sensitive electronics - if you accidentally squashed it, or you left it in your pants and run them through the laundry.

Either way, the result is the same: a busted remote, and a total replacement.

Fortunately, Galmier’s car locksmiths in Melbourne drive around, fully-equipped to repair or replace your car locks and keys... and that includes car remotes.

A common problem with today’s cars is that when remotes break and your door has a different key to your ignition, you will be locked out. Galmier can also help with this issue.

 

Desynchronisation

Synchronisation is the key to remote unlocking. But what happens when your remote and car desynchronize?

When you click the button on your remote while out of range, your remote and car are out of synch - each code is single-use, after all.

Luckily, there are measures in place to resolve this. A 40-bit system in particular allows you to accidentally push the button 256 times before desyncing.

If your remote does desync however, you’ll need to resynchronise it. And Galmier Locksmiths can help with that!

lost car remote

Contact Galmier’s reliable car locksmiths in Melbourne

If it involves keys or locking, Galmier Locksmiths can help... and that includes issues with your car remote.

Is it any wonder we’re one of the most trusted auto locksmiths in Melbourne?

Our mobile locksmiths are on the road throughout the day - when things go wrong, give us a call and we’ll come to you, wherever you are in Melbourne’s south-east.

What’s more, our car locksmiths in Melbourne also offer after-hours, emergency locksmithing service. Give us a call anytime between 9am and 10:30pm (including weekends and public holidays) and we’ll be there!

Contact Galmier Locksmiths today at 0407 022 234 or fill in the form to get in touch with us.