How do you reset security after replacing lock cylinder and ignition?
Mar 11, 2020 at 10:26 AM
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STEVE W.
✓Experienced Mechanic
15,374 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 11, 2020 at 6:19 PM
BMDOUBLE
✓Experienced Mechanic
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.