Is Your 2015 Sierra Denali Experiencing Bizarre Electrical Problems?
If you’re dealing with flickering lights, power windows with a mind of their own, a security system that won’t cooperate, or a battery that mysteriously drains overnight, the culprit is likely a failing Body Control Module (BCM). The BCM acts as the central command center for your truck’s body electronics, managing everything from your key fob and interior lights to your power locks and climate control. When this critical component begins to fail, it can cause a cascade of frustrating and seemingly unrelated issues, making your premium truck feel unreliable.
Don’t let a faulty module sideline your vehicle. This is not a simple part you can just swap out. A new BCM from the dealership requires expensive and complicated programming to sync with your truck’s unique identity. We offer a far simpler and more cost-effective solution: a professional mail-in cloning service that delivers a fully programmed, plug-and-play module directly to you.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting (flickering, staying on, or not turning on at all).
- ✔ Instrument cluster displaying false warnings or behaving erratically.
- ✔ Key fob that works intermittently or has stopped working completely.
- ✔ Unexplained parasitic battery drain that leaves you with a dead battery.
- ✔ The anti-theft or security system activating incorrectly, possibly preventing the engine from starting.
- ✔ HVAC (heating and air conditioning) controls that are unresponsive or function improperly.
- ✔ Radio or infotainment system glitches.
From the Diagnostic Bay
We recently had a 2015 Sierra Denali 1500 in the shop that was giving its owner fits. The main complaint was a dead battery every single morning. He had already replaced the battery twice and even the alternator, but the parasitic draw persisted. After hooking up our diagnostic tools, we traced the power drain to the BCM. It wasn’t entering its ‘sleep mode’ after the truck was turned off, keeping several circuits live all night. Instead of a costly dealer replacement, we used our cloning service to program a replacement unit. The customer installed it in his driveway, and the battery drain problem was solved for good. It’s often these central computers that cause the most widespread and confusing symptoms.
The Simple Plug-and-Play Solution for Your 2015 Sierra Denali BCM
Our service eliminates the need for a trip to the dealership. We take all the essential, vehicle-specific data from your original BCM—including the VIN, mileage, security information, and factory options—and transfer it directly to a replacement unit. When you receive the module back from us, it is 100% ready for installation. Simply disconnect the old BCM and plug in the new one. All original functions will be restored immediately, with no additional programming required.
How Our BCM Programming Service Works
- ✔ Place Your Order: Complete your purchase through our secure checkout. Please ensure all your contact information is correct, as we will need to communicate with you.
- ✔ We Contact You: Shortly after your order is placed, a member of our team will email you with detailed instructions and the specific address to ship your original BCM.
- ✔ Ship Your Original Module: Carefully package your BCM to prevent damage during transit and send it to us using the carrier of your choice.
- ✔ We Clone Your Data: Once we receive your module, our expert technicians will perform a full data transfer to the replacement BCM. This process is typically completed within 1-2 business days.
- ✔ We Ship It Back to You: We will ship your new, ready-to-install BCM back to you and provide tracking information so you know exactly when it will arrive.
Guaranteed Compatibility & Part Numbers
This Body Control Module is a direct replacement for a range of GM vehicles and is compatible with several part numbers. To ensure a perfect match, please verify that your original module’s part number is included in the list below.
Compatible Part Numbers: 13592137, 13506935, 13506936, 13587704, 13594764
This part will fit these makes and models with these options:
- ATS 15-16 Body Control (BCM); (on firewall)
- CORVETTE 15 Body Control (BCM); (LH dash)
- CTS 15-16 Body Control (BCM); Sdn, (LH dash)
- ESCALADE 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
- ESCALADE ESV 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
- IMPALA 15-16 Body Control (BCM); VIN 1 (4th digit, New Style), (LH dash), ID 13587704
- SIERRA 1500 PICKUP 15 Body Control (BCM); (under steering column)
- SIERRA 2500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13587704
- SIERRA 3500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13587704
- SIERRA DENALI 1500 15 Body Control (BCM); (under steering column)
- SIERRA DENALI 2500 15 Body Control (BCM); (under steering column), ID 13587704
- SIERRA DENALI 3500 15 Body Control (BCM); (under steering column), ID 13587704
- SILVERADO 1500 PICKUP 15 Body Control (BCM); (under steering column)
- SILVERADO 2500 PICKUP 15 Body Control; (under steering column), ID 13587704
- SILVERADO 3500 PICKUP 15 Body Control (BCM); (under steering column), ID 13587704
- SONIC 15-18 Body Control (BCM); (RH rear quarter panel)
- SUBURBAN 1500 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
- TAHOE 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
- XTS 15 Body Control (BCM); (left front hinge pillar)
- YUKON 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
- YUKON XL 1500 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
Important Post-Installation Procedures
While our goal is a 100% plug-and-play experience, the complex nature of modern vehicle electronics means some systems may require a relearn procedure after the BCM is installed. These are simple procedures for a qualified technician with a professional scan tool.
- Airbag System Sync: If the airbag warning light comes on after installation, the ‘Setup SDM Primary Key in BCM’ procedure will need to be performed with a professional diagnostic tool to sync the system and turn off the light. This is only required if the airbag warning light is on post-installation.
- Brake Pedal Position Relearn: A brake pedal position sensor recalibration may be necessary to ensure proper brake light function and traction control system performance. This may be required depending on your specific model.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
Why do I need to send in my original BCM?
Your original BCM contains unique data essential to your truck’s operation, including VIN, security information, and settings for your specific options. By cloning this data to the replacement module, we make it 100% plug-and-play, allowing you to avoid expensive and time-consuming programming at a dealership.
How long does the entire process take?
We program and ship the replacement module within 1-2 business days of receiving your original part. The total turnaround time will depend on the shipping times to and from our facility.
Is this a repair service for my old module?
No, this is a data transfer service. We are not repairing your old module. We are extracting its unique data and programming it onto a fully tested, replacement BCM which we provide. You just need to send us your original module so we can read the data.
What if my original BCM is completely dead or water damaged?
In the vast majority of cases, even if the BCM has failed or has water damage, we can still successfully retrieve the necessary data. If we encounter a rare situation where the data is unrecoverable, we will contact you immediately to discuss your options.
Do I need any special tools for installation?
For most models like the Sierra, the BCM is located under the steering column and can be swapped with basic hand tools. The primary benefit of our service is that you will not need any special electronic diagnostic or programming tools for the installation.