ACDelco GM Original Equipment Anti-Theft Control Modules are one part of the vehicle's theft deterrent system, and are GM-recommended replacements for your vehicle's original components. When armed, the system is designed to help deter vehicle theft by performing one or more of the following: pulsing the horns and exterior lamps when unauthorized vehicle entry is detected, or prevent starting of the engine without an authenticated ignition key. These modules may manage the system functions independently or in conjunction with other modules and components within the vehicle. These original equipment anti-theft control modules have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

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• This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
• Helps deter vehicle theft
• GM-recommended replacement part for your GM vehicle's original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function