Replacement GM Body Control Module (BCM) – 2010-2026 (Global A)

Description

When a GM body control module (BCM) fails, the symptoms rarely point straight at it: lights or locks that act on their own, a no-start, a dead battery overnight, or a dash full of communication codes. This is a brand-new GM BCM for vehicles built on the Global A electrical architecture, which covers the 2014 and newer Silverado and Sierra 1500, the 2015-2020 Tahoe, Suburban, Yukon and Escalade, and a long list of Chevrolet, GMC, Buick and Cadillac cars and crossovers.

You choose how it arrives. A standard order ships blank, ready for a GM dealer or a shop with Techline Connect to set up. Add Ship in Data Transfer and you send us your original module instead: we move its VIN, security and vehicle data to the new BCM and return it ready to install, with no dealer visit.

Does your GM vehicle use a Global A BCM?

Year alone won’t settle it, because several GM lines changed electrical architecture partway through a generation. Three quick checks:

Look at the module. A Global A BCM has seven connectors and a white label, and is built by Bosch or Continental (the maker isn’t always printed on the label). An all-black BCM with laser-etched markings that says Denso is a newer Global B module and won’t interchange with this one.

Keep your old module’s label handy. On a few vehicles GM built two BCMs for the same model, year and options. Only the part number on your original module tells them apart, and we’ll ask for it only in those cases.

Check the year split on trucks and SUVs. The 2014 model year is where most mix-ups happen. A 2014 Silverado 1500 or Sierra 1500 is the newer K2 truck and takes this Global A BCM. The 2014 Silverado and Sierra 2500HD and 3500HD, and the 2014 Tahoe, Suburban, Yukon and Escalade, are still the previous generation and need our pre-Global A replacement BCM.

Global A BCM fitment for Chevrolet, GMC, Buick and Cadillac

These are the North American vehicles this module is cataloged for. Many were built with more than one BCM over their run, so the part that ships is matched to your VIN. Two pickup years need a closer look: a 2019 Silverado or Sierra 1500 can be the carryover Limited or LD body or the new body (each takes a different BCM, and both are covered), and for 2022 only the carryover Silverado 1500 LTD and Sierra 1500 Limited are covered.

Chevrolet

• 2014-2021 Chevrolet Silverado 1500, plus the 2022 Silverado 1500 LTD
• 2015-2023 Chevrolet Silverado 2500HD / 3500HD
• 2015-2020 Chevrolet Tahoe
• 2015-2020 Chevrolet Suburban
• 2019-2026 Chevrolet Blazer
• 2017-2023 Chevrolet Bolt EV
• 2010-2024 Chevrolet Camaro
• 2014-2017 Chevrolet Caprice PPV
• 2015-2022 Chevrolet Colorado
• 2014-2019 Chevrolet Corvette
• 2011-2019 Chevrolet Cruze
• 2010-2024 Chevrolet Equinox
• 2014-2020 Chevrolet Impala (redesigned car, not the Impala Limited)
• 2013-2025 Chevrolet Malibu
• 2013-2020 Chevrolet Sonic
• 2013-2022 Chevrolet Spark
• 2016 Chevrolet Spark EV
• 2014-2017 Chevrolet SS
• 2018-2023 Chevrolet Traverse
• 2015-2022 and 2024-2026 Chevrolet Trax
• 2011-2019 Chevrolet Volt

GMC

• 2014-2021 GMC Sierra 1500, plus the 2022 Sierra 1500 Limited
• 2015-2023 GMC Sierra 2500HD / 3500HD
• 2015-2020 GMC Yukon / Yukon XL
• 2017-2023 GMC Acadia
• 2015-2022 GMC Canyon
• 2010-2024 GMC Terrain

Buick

• 2018-2024 Buick Enclave
• 2013-2022 Buick Encore
• 2020-2026 Buick Encore GX
• 2016-2018 Buick Envision
• 2024-2026 Buick Envista
• 2010-2019 Buick LaCrosse
• 2011-2020 Buick Regal
• 2012-2017 Buick Verano

Cadillac

• 2015-2020 Cadillac Escalade / Escalade ESV
• 2013-2019 Cadillac ATS
• 2014-2019 Cadillac CTS sedan
• 2016-2020 Cadillac CT6
• 2014-2016 Cadillac ELR
• 2010-2016 Cadillac SRX
• 2019-2023 Cadillac XT4
• 2017-2026 Cadillac XT5
• 2020-2025 Cadillac XT6
• 2013-2019 Cadillac XTS

Click here to see the GM part numbers this BCM replaces

Searching by the number on your old module? Find it here. GM superseded these BCMs many times, so the number on yours may be older than the one that ships. Your VIN decides the correct part; on the few vehicles where GM built two BCMs for the same options, the number on your old module settles it.

13500384, 13500705, 13500706, 13500852, 13501737, 13501739, 13504004, 13504283, 13504284, 13504494, 13505326, 13505938, 13506803, 13506804, 13506991, 13506999, 13508761, 13508904, 13508905, 13509957, 13509958, 13510523, 13510527, 13510528, 13510535, 13510536, 13511569, 13511570, 13511755, 13512679, 13512680, 13513326, 13514223, 13514637, 13514638, 13515936, 13516918, 13517057, 13517451, 13517454, 13517860, 13518368, 13518371, 13518372, 13518593, 13518599, 13518603, 13518626, 13518628, 13519617, 13519619, 13519620, 13519643, 13519645, 13519672, 13520409, 13520752, 13521148, 13521360, 13521361, 13521681, 13522387, 13524528, 13524532, 13524533, 13524922, 13526398, 13526399, 13527737, 13527738, 13527853, 13527858, 13528941, 13528945, 13529041, 13529403, 13529404, 13530503, 13530973, 13531840, 13532662, 13532663, 13532705, 13532706, 13533072, 13533073, 13533817, 13534179, 13534180, 13534181, 13534182, 13534183, 13534184, 13534185, 13534186, 13534187, 13534188, 13534189, 13534190, 13534191, 13534192, 13534193, 13535989, 13535990, 13535992, 13535993, 13535994, 13536355, 13536359, 13538803, 13540513, 13541614, 13543027, 13543436, 13543440, 13574843, 13574844, 13575110, 13576041, 13577095, 13577096, 13577102, 13577277, 13577290, 13577586, 13577849, 13577850, 13577924, 13578420, 13578458, 13578703, 13578704, 13579004, 13579605, 13580194, 13580198, 13580668, 13580669, 13580689, 13580690, 13580696, 13580697, 13580698, 13580773, 13580774, 13581773, 13582395, 13582396, 13582410, 13582688, 13582689, 13583450, 13583451, 13583542, 13583543, 13584213, 13584692, 13584693, 13584695, 13584696, 13585674, 13585675, 13585716, 13586043, 13586273, 13586278, 13586582, 13586583, 13586585, 13586586, 13586856, 13587700, 13587704, 13588070, 13588446, 13588447, 13588505, 13588506, 13589115, 13589197, 13589324, 13589325, 13589637, 13590146, 13590147, 13590173, 13590805, 13590806, 13590851, 13591218, 13591219, 13591222, 13591300, 13591589, 13591590, 13592376, 13592590, 13593775, 13593776, 13594469, 13594470, 13594558, 13594562, 13594564, 13594568, 13594569, 13594571, 13594587, 13594614, 13594620, 13594646, 13594692, 13595583, 13595988, 13596993, 13596994, 13596997, 13596998, 13597031, 13597198, 13597205, 13598198, 13598201, 13599685, 13599743, 13599943, 13599994, 13599998, 13599999, 84469210, 84497801, 84624871, 84691361, 84913367, 84924986

Not covered by this Global A BCM

• 2007-2013 trucks and SUVs, the 2014 heavy duty pickups and 2014 Tahoe, Suburban, Yukon and Escalade, the 2014-2016 Impala Limited, Express and Savana vans, and GM cars and crossovers from 2006 on that predate Global A: see our pre-Global A replacement BCM, which ships preprogrammed.
• 2011-2013 Caprice PPV, the CTS coupe and wagon, and the 2015 CTS-V coupe: these use the earlier module on our pre-Global A replacement BCM page.
• Global B vehicles: the 2021 and newer Tahoe, Suburban, Yukon and Escalade, the refreshed 2022 and all 2023 and newer Silverado 1500 and Sierra 1500, and the 2024 and newer heavy duty pickups. Their BCM is the black Denso module described above.
• Export models (Japan, Europe, Russia, Middle East builds) and vehicles sold outside North America: not covered.

Blank BCM or Ship in Data Transfer: which one you need

A body control module carries data that belongs to one vehicle: its VIN, its security and key information, and the way that vehicle was configured at the factory. A new module has none of it, so somebody has to put it there.

	Standard (blank)	Ship in Data Transfer
How it arrives	New and unprogrammed	Loaded with your original module’s data
What you send us	Nothing	Your original BCM, right after you order
After installation	A GM dealer or a shop with Techline Connect programs and sets it up in the vehicle	Plug and play
Best for	Shops and dealers that program in house	Owners who want to skip the dealer

How the transfer works. Pick the transfer option at checkout, then ship your original BCM using the shipping instructions in your order confirmation email. We treat these as a vehicle-down job: most go back out the next business day after your module arrives, and almost all within two.

Want features changed while it’s here? We can program custom settings into the new BCM during the transfer, the same work as our custom BCM programming. Contact us with what you want before you ship the module. See what can be changed in a GM BCM for the options.

If your old module can’t be read. It’s uncommon, but a badly damaged BCM sometimes won’t give up all of its data safely. If that happens we tell you right away, refund the transfer fee, and send back your original along with the new BCM, which a dealer or shop then programs in the vehicle.

Before you order a replacement GM BCM

• Get it diagnosed first. The BCM runs lighting, locks, the security system, power management and more, so a fault somewhere else can look like a BCM failure. Have a GM dealer or a qualified technician confirm it.
• Special order and non-returnable. Each module is registered to the VIN on the order, so it can’t be returned. Most orders fill within the posted processing time.
• No core charge. Keep or recycle your old module. If you choose the transfer, we return your original with the new BCM.
• What it costs overall: our guide to GM BCM replacement cost compares this route with a dealer replacement.

Why buy a new GM BCM from WAMS

Every BCM on this listing is brand-new GM, never used, salvage or refurbished, and covered by GM’s factory warranty. A used BCM carries another vehicle’s data and an unknown history of heat, water and voltage spikes, and it still needs programming before it will work in yours. We have worked on GM electronics for more than 20 years, and our shop in Wixom, Michigan does the transfer itself, so your module never leaves our hands. Dealers, repair shops and locksmiths order the same way.

Only need features changed on a BCM that still works? Our custom programming covers the 2014-2019 K2 trucks and SUVs, the 2019-2023 Silverado and Sierra and the 2015-2022 Colorado and Canyon.

Global A GM BCM questions from Chevrolet, GMC, Buick and Cadillac owners

Is this a new BCM or a used one?

New. Every BCM on this listing is a brand-new GM module with GM’s factory warranty. The price can look close to used parts online, but those carry another vehicle’s data and an unknown history.

Does the BCM come programmed?

Only with Ship in Data Transfer. A standard order ships blank, and a GM dealer or a shop with Techline Connect has to program and set it up in your vehicle.

Can I install it myself without a dealer?

Yes, if you choose Ship in Data Transfer. Your original module’s data goes onto the new one, so it is plug and play. A blank BCM needs dealer or shop programming after installation.

How long does the data transfer take?

Most transferred modules go back out the next business day after your original arrives, and almost all within two business days. Shipping time each way is extra.

What if my old BCM is too damaged to transfer?

We tell you as soon as we know, refund the transfer fee, and return your original along with the new BCM. A dealer or shop then programs the new module in the vehicle.

Can you add features while my BCM is with you?

Yes. Custom settings can be programmed into the new BCM during the transfer. Contact us with the changes you want before you ship your module.

How do I know my vehicle takes a Global A BCM?

A Global A BCM has seven connectors and a white label, made by Bosch or Continental. If yours is all black, laser etched and marked Denso, it is a Global B module and this part will not fit.

I have a 2014 Silverado. Which BCM do I need?

A 2014 Silverado 1500 or Sierra 1500 takes this Global A BCM. A 2014 Silverado or Sierra 2500HD or 3500HD, or a 2014 Tahoe, Suburban, Yukon or Escalade, takes our pre-Global A replacement BCM.

The part number on my BCM isn’t the one you ship. Will it work?

Yes. GM has replaced these part numbers many times, so your old module often shows an older number. We ship the current number for your VIN, and the list on this page includes the older ones.

Is there a core charge?

No core charge and nothing to send back, unless you choose the transfer, in which case we return your original with the new BCM.

Why was the bag open when my BCM arrived?

We open each module to program and test it before it ships. Some come from GM in sealed bags, so an opened bag is expected.

Will a new BCM fix my problem?

Only if the BCM is what failed. It controls many systems, and other faults can look the same, so have the vehicle diagnosed first. Modules are registered to your VIN and can’t be returned.