YOUR PART# MUST MATCH THE REPLACEMENT MODULE! IMPORTANT INFORMATION Most control modules store immobilizer/anti-theft/VIN/variant-coding data. Installing a used module that is not matched/coded to your vehicle may prevent the car from starting or cause malfunctions. PROGRAMMING / CODING REQUIRED: All replacement modules require programming/coding/adaptation by a qualified technician with proper tools (dealer-level or equivalent). Identifiers: Unit Assembly – Smart Cruise Control.