How to reset security

2006 FORD MUSTANG
148,000 MILES • 4.0L • V6 • 2WD • AUTOMATIC
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ROSS ODEN
  • MEMBER
  • 1 POST
How do you reset security after replacing lock cylinder and ignition?
Mar 11, 2020 at 5:26 PM
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STEVE W.
  • CAR REPAIR CONTRIBUTOR
  • 15,158 POSTS
Because you have changed the lock cylinder itself you need to use a dealer level scan tool to program in the replacement keys into the PATS hardware. The procedure that used the original keys to program a new key will not work as you need to be able to turn the ignition on and off with the key during the process and with a different key cut you cannot do that.
Mar 12, 2020 at 1:19 AM
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BMDOUBLE
  • CAR REPAIR CONTRIBUTOR
  • 1,139 POSTS
No programming is necessary if just the ignition lock cylinder is replaced, unless you are replacing it because you want a new set of keys due to theft, new owner, etc.
Mar 12, 2020 at 11:19 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.