★ GMC SPECIALISTS
Sierra ECM, BCM & TCM Modules
Pre-programmed control modules for GMC Sierra. Plug & play installation – no dealer visit required.
1158+ Parts
✓ VIN Programmed
Shop by Module Type
Select the module type you need for your GMC Sierra
Why Buy Your Sierra Module From Us?
True Plug & Play
Every module is pre-programmed to your VIN before shipping. No dealer visit, no extra fees. Just plug in and drive.
Save vs Dealer Prices
Dealerships charge $800-$2000+ for the same module. We offer quality tested units at competitive prices.
1 Year Warranty
All modules include a standard 1 year warranty against defects. Extended 3 year warranty available for extra peace of mind.
Expert Support
Our team specializes in GMC modules. Call us with your VIN and we will help you find the right part.
Frequently Asked Questions
How do I know which module fits my Sierra?
Contact us with your VIN and we will verify compatibility before you order. Each listing shows compatible years and engine types.
Is the module already programmed to my vehicle?
Yes! We program every module to your specific VIN before shipping. When you receive it, simply plug it in – no dealer programming needed.
How long does shipping take?
Most orders ship within 1-2 business days. Standard shipping is 3-7 days via USPS Priority Mail. Express shipping (1-3 days) is available at checkout.
What is your return policy?
We offer 30-day returns. Items must be in original condition. Contact us before shipping returns. All modules include a 1 year warranty with 3 year option available.
Ready to Fix Your Sierra?
Browse 1158+ GMC Sierra control modules. All quality tested and VIN programmed.