2003 Chevrolet Trailblazer Powertrain Control Module
Navigate our online catalogue to find original replacement Powertrain Control Modules specifically designed to fit a 2003 Chevrolet Trailblazer.






Powertrain Control Module
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Engine Base: 4.2L 256ci L6 (3.66x4.00; 93.0x102.0);
Vehicle Fitment Notes:
with Original Equipment (OE) # 12573576, 12574976, 12577955, 19210065 Important: Vehicle Specific Flash Programming Required ON or OFF the Vehicle. Accurate VIN and Mileage are Required Important: Vehicle Specific On-Car Programming must be Performed AFTER Installation to Prevent Drivability and Starting Issues
with Original Equipment (OE) # 12573576, 12574976, 12577955, 19210065 Important: Vehicle Specific Flash Programming Required ON or OFF the Vehicle. Accurate VIN and Mileage are Required Important: Vehicle Specific On-Car Programming must be Performed AFTER Installation to Prevent Drivability and Starting Issues