2013 Sierra Denali 3500 Body Control Module 20939138 Programmed To Your VIN VIN

2013 GM Sierra Denali 3500 Body Control Module 20939138 Programmed To Your VIN

Struggling with flickering lights, erratic door locks, or HVAC glitches in your 2013 GMC Sierra Denali 3500? This pre-programmed BCM restores seamless control over lights, windows, and security, clearing DTCs like B1001 for safer drives. Benefits include VIN-specific setup for easy installation, enhanced reliability during towing, and a one-year warranty. Remember to check grounds to avoid recurring issues. Fix your Sierra’s electrical problems today!

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2013 GMC SIERRA DENALI 3500 Body Control Module (BCM) 20939138 – Pre-Programmed to Your VIN with One-Year Warranty from Highway71AutoParts.com

Dealing with erratic door locks or flickering interior lights in your 2013 GMC Sierra Denali 3500? You’re not aloneโ€”I’ve seen countless truck owners pull into the shop frustrated by these glitches, often tracing back to a failing body control module. Questions like “why is my Sierra’s HVAC blower acting up intermittently?” or “how to resolve airbag warning light on 2013 GMC Sierra Denali 3500 with DTC B1001?” flood my inbox daily. The fix? This OEM-spec GM 20939138 BCM, pre-programmed to your exact VIN for seamless integration. It restores control over lights, windows, locks, security, wipers, and climate systems in 2007-2013 GM trucks and SUVs. Compatible across Chevrolet Silverado series, Suburban, Tahoe; GMC Yukon models; and Cadillac Escalade variants. Boldly interchangeable with 25844480, 25835966, and others like 15263363 or 22860591, it ensures your heavy-duty Sierra Denali 3500 hauls reliably without electrical headaches. In my experience, swapping to this module cuts diagnostic time dramatically, preventing costly towing scenarios on long hauls.

Common Issues & How This Fixes Them

When your 2013 GMC Sierra Denali 3500’s body control module starts failing, it disrupts daily drives in subtle yet aggravating ways. Take HVAC problems: intermittent blower operation or lost climate controls often stem from degraded internal circuits, exacerbated by moisture or voltage spikes in rugged off-road use. This leads to uncomfortable cabins during extreme weather, a real issue for truckers in varying climates. Then there’s the airbag warning light triggering DTC B1001โ€”usually due to communication breakdowns between the BCM and supplemental restraint system, risking safety compliance. Electrical gremlins like unresponsive power windows, erratic door locks, or dimming lights point to faulty relays or grounding faults within the module, common in high-mileage vehicles exposed to vibrations. Security system glitches can cause no-starts, stalling, or even misfires if anti-theft protocols misfire. Various body-related DTCs compound the frustration, pulling you into endless troubleshooting loops. Replacing with our VIN-programmed 20939138 BCM resolves these by recalibrating electronics to factory specs, enhancing signal integrity and preventing recurrence. From my shop days, I’ve fixed similar issues on Sierras by addressing grounds firstโ€”clean those connections to avoid callbacks. This part not only clears codes but boosts overall system reliability, saving you from repeated repairs.

Key Features & Benefits

  • VIN-Specific Programming: Arrives ready-to-install with your truck’s VIN loaded via latest GM software, eliminating dealership visits and ensuring instant compatibility for 2013 Sierra Denali 3500 BCM replacement.
  • Comprehensive Control Restoration: Manages body functions like lighting and security flawlessly, reducing risks of electrical failures in demanding towing scenarios.
  • Built for Durability: Meets strict OEM standards with a full one-year warranty, ideal for the rigors of daily hauling or work-site demands without premature wear.
  • Interchange Flexibility: Swaps easily with numbers such as 25835966, 20939137, or 22860591, making it a versatile choice for repairs on compatible GM models.
  • No-Hassle Policy: Skip core charges entirelyโ€”keep your old BCM, and enjoy plug-and-play ease that minimizes downtime.
  • Proactive Issue Prevention: Integrates updates to fend off common DTCs, offering peace of mind for long-term ownership.

Easy Installation Guide

  1. Provide your VIN during purchase to ensure precise programming for your 2013 GMC Sierra Denali 3500.
  2. Locate the BCM under the steering columnโ€”disconnect the battery first for safety to avoid shocks or data loss.
  3. Remove the old module by unplugging connectors and unbolting it; inspect for corrosion or poor grounds, cleaning as needed to prevent future issues.
  4. Install the new 20939138 BCM, reconnect everything securely, and reconnect the battery.
  5. Perform post-install checks: If no-start occurs, initiate theft relearn by cycling the key from off to run (without starting) 3-4 times, waiting 10 minutes each cycle until the security light extinguishes.
  6. For lingering airbag lights (like DTC B1001), use a diagnostic scanner to run the ‘Setup SDM Primary Key in BCM’ procedure; some models may need brake pedal recalibration for optimal safetyโ€”consult your manual or a tech if unsure.
Pro Tip: Always verify grounds during BCM swap on your Sierraโ€”loose connections mimic module failure and can trigger recurring DTCs. A quick multimeter check saves hours of frustration!

Fitment Details

Compatible with:

2013 GMC SIERRA DENALI 3500

Verify part numbers; provide VIN for confirmation. No core charge required.

Don’t let BCM woes sideline your 2013 GMC Sierra Denali 3500 any longerโ€”grab this pre-programmed 20939138 today for reliable fixes and expert backing from Highway71AutoParts.com. Fast shipping means you’re back on the road quickly; order now to reclaim full functionality and drive with confidence.

Genuine OEM

Yes

Condition

Refurbished

Model

SIERRA DENALI 3500

Make

Year

2013

Brand

CHEVROLET TRUCK

Warranty

1 Year

Interchange part number

MPN

20939138

Manufacturer Part Number

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