How transponder keys work
Transponder keys are typical for most cars made today. They make it more difficult for your vehicle to be stolen. Even though it’s more expensive, a transponder key is worth the peace of mind it gives you.
Anyone who has transponder keys ~ also referred to as transponder “chip” keys ~ knows how much easier they are to use than standard keys. These specialized keys are ignition keys that make getting in and out of your car a simple task, because you can unlock your car doors without actually putting your key in the lock mechanism; you can open your trunk remotely; you can deactivate and activate your car alarm; additionally, with some transponder keys, you can even remotely start up your car.
The way a transponder key works is that the chip inside it sends out a unique signal to your car’s computer, a particular frequency that’s aligned only to your automobile. When the signal is received, the mechanical part of the key releases your steering lock so that you can activate the ignition. Nevertheless, problems can occur. Here’s how to get yourself out of trouble when it comes to challenges with transponder keys.
Did you lose your transponder key?
Losing your car key is more complicated than it was decades ago. With a regular key, you could make a spare key at nearly no cost, at any local hardware store or locksmith, or even at your dealership. But a transponder key is something else altogether. If you’ve misplaced your transponder key for good, replacing it will be pricey. Depending on the automaker, and on the complexity of the key’s design, the price tag for replacing your electronic fob will range from somewhat costly to exceptionally expensive. Some dealerships will reprogram your key fob for free, but most will charge a lot.
For some cars, the transponder key is an all-in-one unit including the fob. It’s also called a laser-cut key. The shank is slightly thicker, with fewer carved-out grooves. They’re also called “sidewinder” keys, because of the shank’s winding cut feature. The dealership will probably need to program a laser-cut key’s built-in chip.
A switchblade key is a transponder key with a shank, but this one folds into the fob, which you pop out by pressing a button. A switchblade key has either a laser cut or a basic cut. One benefit to a switchblade key is that you can buy its components separately; but if you’ve really lost your key, you’ll need to program both parts.
A smart key isn’t a key at all ~ not in the ordinary sense. It’s just a fob. You either insert it into the dash, or, you can keep in your pocket or purse. When you get behind the wheel, just by pressing a button, you can start up and turn off the engine. A smart key gives you extraordinary protection because of its rolling security codes. Continuously randomizing the correct code, it stops a car thief from hacking it with a code grabber. Your car dealership can replace your smart key.
Has your transponder key been stolen?
When you first purchased your vehicle, you should have gotten two transponder keys. So it’s likely you can get your other transponder key from a family member who has the additional copy, and this will get you back on the road for now. But remember, since your transponder key is connected only to your automobile, a would-be car thief who comes across your key could take your automobile without any effort. It’s really best to go ahead and get a replacement, and reprogram them both.
To get a transponder key made, reprogrammed, or replaced, you’ll have to track down an automotive locksmith specialist, or go directly to the dealership. In most cases, a locksmith will cost less than the dealership will. If you’re located in Everett, Washington, then it’s a good idea to take all your questions regarding transponder keys to a reputable locksmith company. For example, the mobile automotive locksmith specialists on staff at Everett Lock and Key are glad to provide you with a free consultation.
Has your transponder key stopped functioning?
- There could be a foreign object lodged in the ignition. Don’t attempt to extract it yourself, because you could very easily damage the ignition. Instead, hire an experienced expert automotive locksmith in Everett, who can properly remove any foreign object from the ignition with the precision required, so you won’t have to replace the entire switch.
- Another possibility is that your transponder key isn’t communicating with your car’s computer because the chip lost its programming. You can get it reprogrammed, or, you can get a whole new transponder key with all-new programming. Whatever route you choose, the car dealership or an automotive locksmith technician can handle it.
- One common reason your transponder key stops working is that there’s a manufacturer’s defect that’s been there since the beginning. If your vehicle is still under warranty, you’ll be able to get the problem corrected at no cost. If it’s no longer under warranty, then hire an automotive locksmith specialist.
DIY
If you do need to reprogram your transponder key, with some cars, you can program it yourself. You just might be in luck.
The following method will work on a good number of American-made automobiles. But before you spend any money, get out your owner’s manual, ask your dealership, and/or consult with a local automotive locksmith to determine whether the following procedure will work effectively on yours.
1 Insert one of your two working keys. Turn the ignition to the “on” position for about three seconds (without starting up the car).
2 Do the same with the second key.
3 Insert the new third key, and turn it to the “on” position for three seconds. This should successfully program your extra key.
If you often find yourself locking your car keys in your vehicle, another thing you can do ~ which will at any rate give you access to your car doors and to your trunk ~ is to order just the basic key, without the transmitter. Then you’ll at least have a key which does everything except start up the car.
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IF YOU’RE HAVING PROBLEMS WITH YOUR TRANSPONDER KEY, HERE’S WHAT TO DO
