ACDelco Anti-Theft Control Module

ACDelco Anti-Theft Control Modules: OE-Grade Theft Deterrent for GM Vehicles

When a vehicle's theft deterrent system fails or degrades, the consequences range from nuisance false alarms to a complete inability to start the engine. ACDelco addresses this with a lineup of anti-theft control modules engineered to the exact specifications of the original factory components installed in GM vehicles — no guesswork, no compromises.

What ACDelco Anti-Theft Control Modules Do

An anti-theft control module sits at the heart of a vehicle's theft deterrent system, coordinating the response to unauthorized access or ignition attempts. ACDelco GM Original Equipment Anti-Theft Control Modules are one part of the vehicle's theft deterrent system — when armed, the system is designed to deter vehicle theft by pulsing the horns and exterior lamps when unauthorized entry is detected, or by preventing the engine from starting without an authenticated ignition key. This module may manage system functions independently or in conjunction with other modules and components within the vehicle.

ACDelco's lineup also includes specialized variants such as the Theft Deterrent Passkey II Module, which supports GM's key-based authentication systems — reflecting the brand's coverage of both legacy and later-generation theft deterrent architectures across the GM portfolio.

Why Choose ACDelco for This Safety-Critical Component

Anti-theft modules are not parts where fit-and-finish shortcuts are acceptable — a module that doesn't communicate properly with a vehicle's other systems can leave a driver stranded or trigger endless false alarms. ACDelco original equipment anti-theft control modules have been manufactured to fit GM vehicles, providing the same performance, durability, and service life expected from General Motors.

ACDelco stands with GM Genuine Parts as the only source for true General Motors Original Equipment — OE parts that fit exactly and function precisely because they are designed, engineered, and backed by General Motors. For owners who prefer a high-quality aftermarket alternative, Gold and Silver aftermarket parts from ACDelco follow the same 18-step quality-approval process and are the only aftermarket parts backed by GM, even for use on other makes and models.

Broad GM Vehicle Coverage

Built with GM's engineering expertise, ACDelco and OEM GM parts are factory original equipment replacement parts for Chevy, Buick, Cadillac, GMC, Saturn, Pontiac, Oldsmobile, and Hummer vehicles. Known part applications span a wide range of popular platforms, including the Chevrolet Silverado, Tahoe, Suburban, Express Van, Colorado, Cadillac Escalade, GMC Sierra and Yukon, and Hummer H3 — ensuring that technicians and DIYers alike can find the exact module designed for their specific application.

OE Quality You Can Count On

• Factory-direct fit: Manufactured to GM OE specifications for fit, form, and function
• Authenticated ignition support: Compatible with key-based and Passkey II theft deterrent systems
• System integration: Designed to work seamlessly with other vehicle modules and body-electrical systems
• GM-backed quality: Designed, engineered, and tested to rigorous standards, and backed by General Motors
• Remanufactured options available: ACDelco GM original equipment refurbished anti-theft control modules serve as factory-recommended replacement components for body-electrical and lighting vehicle systems

For GM vehicle owners who refuse to compromise on security-critical components, ACDelco's anti-theft control modules deliver OE peace of mind. Explore the full range of ACDelco parts to find every module and component your GM vehicle needs.