2007 – 2011 GMC SIERRA 2500 Body Control Module (BCM) 20939137 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com
Ever dealt with your 2007-2011 GMC Sierra 2500 refusing to lock doors during a rainstorm, or the interior lights flickering unpredictably on a long haul? These frustrations often stem from a failing body control module, disrupting everything from power windows to security systems. What if replacing it could clear those nagging DTC codes and restore reliable operation without a trip to the dealer? Enter the OEM-quality GM BCM, interchangeable with 20939137, pre-programmed to your exact VIN for seamless integration. This unit oversees critical electronics like HVAC controls, wipers, and exterior lighting, ensuring your heavy-duty truck handles towing demands or daily commutes with confidence. Compatible across various GM models, it tackles common electrical glitches, improving overall system reliability and preventing issues like intermittent blower failures. Drawing from years of shop experience, I’ve seen this fix transform unreliable rigs into dependable workhorses, especially in harsh weather where grounding problems exacerbate symptoms.
Common Issues & How This Fixes Them
A malfunctioning BCM in your 2007-2011 GMC Sierra 2500 can trigger a cascade of problems, often mistaken for simpler wiring faults. For instance, if you’re seeing an airbag warning light with DTC B1001 popping up on your scanner, it’s likely due to communication breakdowns within the module, which can compromise safety during off-road adventures or heavy towing. Another frequent headache is loss of HVAC controls, where the blower motor operates erraticallyโthink sweltering summers or foggy winters impairing visibility. Electrical gremlins like non-functional power windows or door locks might leave you stranded, while security system glitches could cause unexpected stalling or misfires, especially in cold starts common to these years. Grounding issues often lurk as the root cause, amplifying diagnostic trouble codes related to body functions. This pre-programmed BCM resolves these by restoring precise control over body electronics, clearing DTC codes without extra hassle, and enhancing towing reliability through stable power distribution. In real scenarios, like a fleet owner I advised, swapping to this module eliminated recurring codes and boosted vehicle uptime, saving on downtime costs.
Key Features & Benefits
- Starts with VIN-specific programming using the latest GM software, delivering plug-and-play ease that skips dealership visits and instantly clears common DTCs for optimal performance.
- Boosts electrical system dependability by managing lights, locks, and HVAC with precision, reducing the risk of failures during extended drives or heavy loads.
- Adheres to strict OEM standards with a robust one-year warranty, perfect for the demands of Sierra 2500 owners facing rugged terrains or frequent towing.
- Offers broad interchangeability with numbers like 25835966, 15263363, and others, making it a versatile choice for repairs that improve security and prevent misfires.
- Eliminates core charges, so you keep your old part without added fees, streamlining the process for DIY enthusiasts or busy mechanics.
- Enhances overall vehicle safety by addressing grounding problems and airbag-related codes, ensuring peace of mind on highways or job sites.
Easy Installation Guide
- Provide your VIN during purchase to ensure the BCM arrives pre-programmed for your 2007-2011 GMC Sierra 2500.
- Locate the module under the steering columnโdisconnect the battery first for safety to avoid electrical shorts.
- Remove the old unit by unplugging connectors and mounting screws; installation typically wraps in under five minutes with basic tools.
- After connecting the new BCM, reconnect the battery and perform any necessary relearns: If a no-start occurs, initiate theft relearn by cycling the key from off to on three times, waiting 10 seconds each, then starting the engine.
- Reset the airbag warning light via the ‘Setup SDM Primary Key in BCM’ procedure with a qualified diagnostic tool to clear DTC B1001 or similar codes.
- Check for brake pedal recalibration if your model requires it, consulting the manual for steps to maintain braking efficiency and safety.
Fitment Details
Compatible with:
2007 – 2011 GMC SIERRA 2500
Verify part numbers; provide VIN for confirmation. No core charge required.
Don’t let BCM failures sideline your 2007-2011 GMC Sierra 2500 any longerโgrab this pre-programmed solution today to clear DTC codes, fix airbag lights, and enhance towing reliability. Shop now at Highway71AutoParts.com for quick shipping and expert guidance that gets you back on the road fast.