# 2000 Mercury Grand Marquis - How do I replace anti theft?

**URL:** <https://community.cartalk.com/t/2000-mercury-grand-marquis-how-do-i-replace-anti-theft/198419>\
**Category:** Maintenance/Repairs\
**Tags:** mercury\
**Created:** [December 17, 2024, 9:29pm UTC](https://community.cartalk.com/t/2000-mercury-grand-marquis-how-do-i-replace-anti-theft/198419 "2024-12-17T21:29:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Eddy25](https://avatars.discourse-cdn.com/v4/letter/e/7993a0/32.png) [@Eddy25](https://community.cartalk.com/u/Eddy25)\
**Post date:** [December 17, 2024, 9:29pm UTC](https://community.cartalk.com/t/2000-mercury-grand-marquis-how-do-i-replace-anti-theft/198419/1 "2024-12-17T21:29:28Z")

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need to replace the anti theft module

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [December 18, 2024, 2:11pm UTC](https://community.cartalk.com/t/2000-mercury-grand-marquis-how-do-i-replace-anti-theft/198419/2 "2024-12-18T14:11:38Z")

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Why, is it preventing you from starting the car?