I lost the key to ignition switch.Do I have to replace the switch and key or just the key?
Aug 28, 2026 at 3:53 PM
Ignition key replace the switch and key?
TRUCKWES
- MEMBER
- 37 POSTS
What to check next
Diagnostic guidance. Suggested checks and possible repairs are separate from the owner's reported results.
Contact an automotive locksmith or the vehicle's dealer with identification, proof of ownership and the VIN. Ask them to identify the correct key and whether the vehicle requires transponder programming. Confirm that the quote includes cutting, any required programming and an operational check. A lost key does not by itself mean the ignition switch or lock cylinder has failed. Have existing locks assessed before authorizing replacement, and ask about removing the lost key's electronic authorization where the system supports it. The likely service path is obtaining a correctly matched, authorized replacement key. Identifying the key system first can avoid unnecessary ignition parts.
Guidance references and applicability
Ford: Lost-key guidance https://www.ford.com.au/about-ford/faq/ Manufacturer guidance directs owners to an authorized dealer with proof of ownership. This general reference does not establish the key system or programming procedure for the vehicle in this discussion.
Have a locksmith cut you a key. Most can use a Lishi tool or the VIN and cut you new keys that will match the cylinders you have. Then they can use a programmer to make the new keys work. If you have keyless entry they could also set up a fob or two for it. Cheaper option than a dealer. As fir a DIY method, you need the correct scan tool to program the keys into the system, the full version of FORScan will do that but by the time you pay for that, plus the dongle and then needing to have the keys cut it is still cheaper for a locksmith. It is possible to replace the cylinder assembly, but without a working key that is a lot more difficult as you have to drill the current unit and risk damaging the column if you slip.
Aug 29, 2026 at 1:54 AM
Thank you for the info.I will locate a Locksmith in my area.
Aug 29, 2026 at 5:04 AM
You are welcome.
Aug 30, 2026 at 2:03 AM
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Discussion summary
Ignition key replace the switch and key?
The owner had lost the ignition key and asked whether the ignition switch and key needed replacement. Replies discussed obtaining a key, and the owner planned to contact a locksmith. No completed replacement or restored starting was reported.
Reported outcome: The owner planned to use a locksmith; the result was not reported.
The exact key and immobilizer configuration were not established. No bypass, drilling or programming procedure is supplied.