2007 – 2011 Chevrolet AVALANCHE 1500 Body Control Module (BCM) 20939137 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com
Ever dealt with your 2007-2011 Chevrolet Avalanche 1500 suddenly losing power to the windows or the HVAC system acting up out of nowhere? It’s frustrating when you’re on a long drive and the door locks fail, or the security light flashes, leaving you stranded. As a seasoned mechanic who’s fixed countless GM trucks, I’ve seen how a failing body control module can turn a reliable Avalanche into a headache. Enter the solution: our VIN-programmed GM BCM, interchangeable with 20939137, designed specifically for seamless replacement in your 2007-2011 Avalanche 1500. This OEM-spec unit restores control over lights, wipers, locks, and more, matching models like Chevrolet Silverado, Tahoe, Suburban, GMC Sierra, Yukon, and Cadillac Escalade variants from 2007-2013. Pre-programmed to your VIN, it eliminates dealership visits and clears persistent DTCs like B1001 right away. Drawing from years in the shop, I know this fix not only resolves immediate glitches but prevents cascading electrical failures, saving you time and money on diagnostics.
Common Issues & How This Fixes Them
One frequent problem in the 2007-2011 Chevrolet Avalanche 1500 is intermittent HVAC blower failure, often caused by a degraded BCM losing communication with climate controls. This leads to uncomfortable rides, especially in extreme weather, and can trigger related DTCs. Replacing with our pre-programmed 20939137 BCM restores steady operation by recalibrating those signals instantly. Another issue: airbag warning lights popping on with codes like B1001, stemming from faulty module grounding or internal shorts—I’ve diagnosed this in trucks exposed to moisture, where corrosion eats at connections. Our unit fixes this by providing a fresh, reliable interface that syncs with the supplemental restraint system. Electrical gremlins, such as non-responsive power windows or door locks, arise from BCM overload or software glitches, potentially causing security system lockouts and even engine stalling. In real scenarios, like hauling gear in your Avalanche, this disrupts everything. This replacement module enhances reliability, preventing misfires and grounding woes through updated firmware. Security malfunctions? It strengthens anti-theft protocols, ensuring smooth starts. Overall, it tackles various body function DTCs, offering a comprehensive resolution that goes beyond band-aid fixes, based on my hands-on analysis of GM electronics.
Key Features & Benefits
- Starts with VIN-specific programming using the latest GM software, ensuring plug-and-play fit for your 2007-2011 Avalanche 1500—no extra trips to the dealer needed.
- Delivers robust control over essential systems like lighting, wipers, and HVAC, minimizing downtime and boosting daily drivability in demanding conditions.
- Comes with a solid one-year warranty, built to OEM specs for lasting performance, even in rugged truck use like off-road adventures.
- Interchanges seamlessly with numbers including 25835966, 25844479, and others, making it versatile for repairs across compatible GM models.
- Eliminates common DTCs automatically upon install, reducing diagnostic hassles and preventing repeat issues from poor grounding or software errors.
- No core charge means you keep your old part without added costs, simplifying the swap process for DIY enthusiasts.
Easy Installation Guide
- Provide your vehicle’s VIN during purchase to ensure precise programming for your 2007-2011 Avalanche 1500 BCM.
- Disconnect the battery to avoid electrical shocks, then locate the module under the steering column—it’s usually secured with a few bolts.
- Remove the old BCM carefully, noting any connector positions, and plug in the new 20939137 unit securely.
- Reconnect the battery and perform a quick system check; if no-start occurs, initiate theft relearn by cycling the key from off to on three times, waiting 10 seconds each cycle.
- For airbag warnings like DTC B1001, use a diagnostic scanner to run the ‘Setup SDM Primary Key in BCM’ procedure to reset the light.
- Some models may need brake pedal recalibration—consult your manual or a tech for steps to optimize braking response post-install.
Fitment Details
Compatible with:
2007 – 2011 Chevrolet AVALANCHE 1500
Verify part numbers; provide VIN for confirmation. No core charge required.
Don’t let BCM failures sideline your 2007-2011 Chevrolet Avalanche 1500 any longer—grab this pre-programmed 20939137 module today for reliable fixes and peace of mind. With fast shipping and expert support from Highway71AutoParts.com, you’re back on the road quickly. Order now and experience the difference!