smartcarofamerica.com/threads/need-a-new-key-and-programming-fixed.164950/

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Forum thread: Need a new key and programming (fixed) | Smart Car of America Forum

smartcarofamerica.com/threads/need-a-new-key-and-programming-fixed.164950/ · p. 1 · Applies to: 450

Source: smartcarofamerica.com Topic: key fob battery and programming Models discussed: 450 Solution status: yes

Problem: 2009 Smart Passion key fob battery died; manual key unlock works but cannot manually lock the car. Owner needs new key and programming.

Solution: Replace key fob battery first as a diagnostic step. If that fails, purchase replacement key blanks from Amazon or other retailers. Take blanks to a mobile locksmith (not necessarily Ace Hardware, as they may refuse to work on non-purchased blanks). Locksmith uses an OBD port programming device to cut and reprogram new keys. Original poster reported all 4 keys working after this process; the old key required reprogramming rather than replacement.

Key facts: - Smart car manual key only operates door unlock via cable; it cannot mechanically lock the door - First troubleshooting step is to replace the key fob battery - Replacement key blanks can be sourced from Amazon or other retailers for approximately $30 for 2-pack - Mobile locksmiths with OBD programming capability can cut and reprogram Smart keys; Ace Hardware may decline to work on non-purchased blanks - Programming typically requires running all existing keys through the system to maintain working set - Locksmith programming costs reported as $100 per fix; dealer programming can cost $250 per key - Alternative: XTool programming tablets allow owners to reprogram keys themselves if they possess the equipment