If I replace the ignition switch, can I use my existing BMW Keys with remote and valet key?

2007 BMW X3. I believe my ignition switch has gone bad. Turning the key 'ON' lights the dash and the accessories work (radio, A/C, etc.). But turning the key to the 'start' position has no response. I have a remote starter installed on this car and it starts and runs fine using the remote starter, so the starter is ok. Also when remote started, and I insert the key and turn the ignition 'ON', then press the brake pedal (which shuts off the remote starter), the car continues to run with the ignition switched 'ON'. So the ignition switch works in the 'ON&#39
Experienced mechanics share their insights in answering this question :
Yes, you can. The ignition switch is separate from the EWS system, so replacing the switch will still allow you to use the current keys you already have. Only if you have to replace a faulty key or EWS module will you have to possibly order all new keys.

One other possibility is there is an EWS issue where the key is not being properly identified not allowing the starting sequence. This would mean ordering an EWS module or keys from the dealer. Try out all keys you have to see if any will commence in the starting sequence. If none of the keys will start the vehicle, faults should be checked to ensure there are no EWS key identification faults. If no faults are present, then most likely the ignition switch is faulty. If there are key identification faults, then it’s either a key, module, or receiver that is the issue. You may want to consult with a mechanic who has the equipment to read out the Powertrain and EWS fault memories before replacing parts.

How to Identify and Fix Common car Problems ?

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Most vehicles will require a new key when replacing an ignition switch, as the old key has worn down and is incompatible with the new set. However, some cars may be able to use an existing key, depending on the condition and make of the key.
You could reprogram a key fob to a different vehicle as long as the key is the same for the vehicle. In this case, if the key can go into the doors and unlock them, then you would need to do the following: Remove the battery from the key fob and put it back in (unless you put in a new battery)
Typically, you do not need to reprogram the key fob after changing the battery. However, if you`ve replaced not just the batteries but also some of the internal wiring and electronics, you may need to reprogram it by pairing it with your vehicle once again.
Take the BMW key fob you wish to program and hold down the unlock button while pressing the BMW logo 3 times before releasing the unlock button. Once again the doors should lock and unlock. When this happens, you are all set! You have programmed your BMW key fob.
Your BMW can be paired with multiple key fobs simultaneously, making it easy for family members to each have their own fob. You can even add extra fobs by ordering a spare or replacement from BMW or a reputable third-party like BimmerTech. However, each key fob is unique, and not a duplicate of any other.
Yes, you can take a used key fob and reprogram it for your car. You will need to have the key fob programmed by a professional, but it is possible. The key fob reprogramming process will vary depending on the make and model of your car.
Most ignition control modules do not need to be programmed after installation, but a technician will need to verify that it is working properly by running and test driving your vehicle.
Reasons for Transponder Car Key Reprogramming

A car`s on-board computers is accessible when it recognises the microchip inside transponder car keys, and without this the car will not open or start, which is the case sometimes when the keys unique code cannot be read. When this happens car key reprogramming is required.

Luckily, even if you have to go to a dealer, it`s not a lengthy process. Most dealers we contacted said key-fob programming typically takes just 15-30 minutes, and the whole process, including cutting the mechanical spare key, rarely takes longer than an hour.
While it`s hard to give a universal estimate, the general cost is between $50 and $250 for reprogramming. Here`s a look at some factors that can determine price: Fob Type: Smart keys with a transponder (RFID), keyless ignition, or other extra features tend to be more expensive to reprogram.
A P2534 trouble code indicates that the PCM has detected a problem in the ignition switch run position circuit.
Turn the key back and remove it. On the working key, hold down the unlock button and press the BMW logo button 3 times, then release the unlock button. The doors will then automatically lock and unlock. Take the new key and hold down the unlock button while pressing the BMW logo 3 times, then release the unlock button.
Programming a New BMW Key Fob

Remove the key. Hold the unlock button and press the BMW logo three times, then release the unlock button. If you have additional keys you`d like to program at this time, repeat step three within 30 seconds from the original key programming. Turn on the ignition to complete the process.

Waiting for call back from dealer. Thanks. 2 keys.
There are a couple ways to find this information out. To find the correct part number take a look at your current key fob. On the back there should be some numbers, match those numbers with the numbers on this fob, if they match it will work.
Key fobs are used for push-to-start vehicles. When purchasing an aftermarket car fob, you must confirm that it is compatible with your car`s make and model. You may come across unbranded aftermarket car keys. While there is a slim chance they will work, it is best to avoid them.
To make a copy, you need special machinery that can de-crypt and copy the data from one fob to the next. If a fob is copy-protected, most likely a machine doesn`t exist that can copy them. To add a new fob to the system, you usually just need so-called `enrolment cards` for the system.
Although you won`t be able to have it copied at a hardware store like a traditional key, you can have a key fob copied online or at a kiosk. Copying key fobs has become a major security risk for organizations that use these devices as part of their access control system.
Key Pricing

Remote keys: $250 to $1020. Non-remote keys: $78 to $92.

Remove the BMW key fob from the ignition. Holding down the unlock button, press the lock button (BMW logo) three times, then release the unlock button. If you have than one key fob to program, repeat step 3 within 30 seconds of the original key programming. Turn on the ignition.
If your key fob isn`t working after replacing the batteries, you may need to reprogram it or check for loose buttons and broken battery terminals. If your remote key fob isn`t working and you`ve already replaced the battery, you may need to reprogram the key.
Not every BMW model comes equipped with remote start, so if you`re questioning, “Does my BMW have remote start,” check the settings of your iDrive sub-menu or Premium Package to see if “Remote Engine Start” is listed. If you have the iDrive system 7.0 or Live Cockpit installed, you will likely find it there.
The quickest way to tell if your BMW has remote start is by looking at the key fob that came with the vehicle. Is there a remote start button on the fob? If so, it`s likely your vehicle has this awesome feature! You can also check the menu in your infotainment center, which we`ll cover in the next section.
Buyers who want a bigger screen can add a 12.3-inch infotainment system. The X3 also comes with additional standard tech features like Remote Keyless Entry, Tri-Zone Automatic Climate Control, and a Push Button Start.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

If I replace the ignition switch, can I use my existing BMW Keys with remote and valet key?
ANSWER : Yes, you can. The ignition switch is separate from the EWS system, so replacing the switch will still allow you to use the current keys you already have. Only if you have to replace a faulty key or EWS module will you have to possibly order all new keys.

One other possibility is there is an EWS issue where the key is not being properly identified not allowing the starting sequence. This would mean ordering an EWS module or keys from the dealer. Try out all keys you have to see if any will commence in the starting sequence. If none of the keys will start the vehicle, faults should be checked to ensure there are no EWS key identification faults. If no faults are present, then most likely the ignition switch is faulty. If there are key identification faults, then it’s either a key, module, or receiver that is the issue. You may want to consult with a mechanic who has the equipment to read out the Powertrain and EWS fault memories before replacing parts.

How to replace an ignition cylinder? do I also have to replace ignition switch? cause key has a chip that’s specific my dodge.
ANSWER : In some cases i have seen the outer ignition housing okay and just the key lock cylinder damaged. In others they damage the housing and ignition lock cylinder. In either case you cannot use your key; it will be a problem since the chip is programmed to your vehicle and will require programming. You may have to replace the entire housing on the column and have the new ignition key reprogrammed to start the car.

Before you purchase any parts, have it inspected to see the damaged parts so you get what is needed. You will need a qualified mechanic to install parts and program the key with a factory scanner. This may mean the dealer will have to do the programming of the new key or a specialized locksmith.

I had the steering column replaced but it didn’t come with a key. Can I just buy an ignition switch with the new keys?
ANSWER : Hi there. It would probably be more expensive to have a mechanic replace your ignition lock cylinder; but it would be the best thing to do to ensure the key would work properly.

Panic alarm on my 2011 CRV activates and continues for about 3 minutes when I turn ignition on or off, using remote or valet key.
ANSWER : Hi there. It is possible if moisture got inside the ignition switch for a fault code to be created which would cause the panic alarm to activate without pressing the button. However, it’s more likely that an electrical short exists somewhere in the steering column or activating the alarm due to a stored error code. The best way to begin the diagnosis of this problem is to have a professional mobile mechanic come to your location and complete an electrical problems inspection, so they can isolate whether this is a mechanical or electrical glitch.

Replacing an ignition lock cylinder with no keys?
ANSWER : Hi there. Typically trying to get a key made to fit an ignition lock cylinder is next to impossible. The best advice we’d suggest is to replace your ignition lock cylinder; and make multiple copies of the keys (just in case this happens again).

2005 liberty evrything works but it will not crank have replaced ignition actuator, ignition switch, tried starting with screwdriv
ANSWER : Hello, thank you for writing in. Without knowing all of the testing you have done, I always recommend making sure the basic components are working perfectly. This means making sure your battery is good, its connections (ground and both terminals) are clean, dry, and tight, and make sure your starter is working. Then turn to your fuse box and check the starter relay, and any fuses your vehicle may have pertaining to the ignition switch. From there if you need to, you will want to look into the wiring and connection to the starter switch. Using a voltmeter is easiest. Your goal is to trace the available power to each component and find out where the voltage drop is coming from. For more diagnostic help, contact our service department to schedule an appointment.

Hi sir i have a Q . What should I replace if i want to replace the ignition switch fo nissan 350z 2003 other than the switch it’s
ANSWER : Hello. If the car needs a new ignition then you will need to replace the ignition lock cylinder along with the ignition switch. It sounds like they both may be damaged. Once they are installed the new key will need to be programmed to the vehicle using a factory scan tool. Before you buy the car, I suggest having a pre-purchase inspection done by a qualified technician, like one from YourMechanic, to pinpoint any other issues and ensure a solid investment. Good luck.

Replacement key for a new ignition switch
ANSWER : If the ignition lock was replaced with a GM piece, ordered through a dealer service department by your VIN number, then it may be as easy as ordering new keys from the dealer in the same manner, by your VIN. If the ignition was replaced with an aftermarket piece, then most likely, a locksmith may be your only alternative It wouldn’t hurt to contact the shop that installed it to see if they are of any assistance.