The most common misconception we hear is that “GM is locking everything down, so my truck won’t be upgradeable in five years.” The future of GM electronics is more useful — and more nuanced — than that. GM is in the middle of a once-in-a-generation shift in vehicle electronics, but the shift hasn’t moved at the pace anyone predicted in 2021, and the installed base of upgrade-friendly GM vehicles is going to stay on the road longer than expected. If you plan to keep a GM truck, SUV, or Corvette for the long haul — or if you’re a shop or fleet that services them — here is an honest, plain-language map of where things stand in 2026 and what it means for the work we do every day.
The two GM electrical architectures that drive every conversation
Almost every question that comes through our shop — can my cluster be upgraded, can wireless CarPlay be added, can a replacement BCM be programmed without a dealer visit, can my fleet standardize on one configuration — comes down to which electrical architecture the vehicle was built on. There are two architectures in service today, and a third on the horizon.
Global A — the modular, retrofit-friendly platform (roughly pre-2020 / pre-2022)
Most GM trucks, SUVs, and cars built before about 2020, and many through 2022, run on Global A. Global A uses a modular architecture of discrete electronic control units — instrument cluster, BCM, HMI infotainment head unit, radio, and so on — communicating over GMLAN and MOST bus protocols. Modules can be swapped, replaced, and reprogrammed without breaking a software signature or a cloud-connected feature, because the platform was designed before any of those existed.
This is where most of our retrofit and replacement work lives:
- Wireless CarPlay and Android Auto retrofits onto factory HMI radios (2013–2019 era)
- Digital cluster upgrades on Silverados, Sierras, Tahoes, Suburbans, Yukons, Escalades, and Corvettes
- BCM, HMI, and CSM module replacements with VIN-specific programming
- VIN-matched programming for replacement modules the dealer can no longer flash on older platforms
Global A is where multiple retrofit paths are typically viable for the same vehicle. We expect to keep working on these vehicles for years after dealers stop stocking parts for them — because we don’t rely on dealer parts. We stock brand-new OEM hardware only.
Global B — the OTA-ready platform, also called Vehicle Intelligence Platform (VIP)
Beginning with the 2020 Cadillac CT4, CT5, and C8 Corvette, GM started rolling out a new architecture called Global B (the internal GM name is Vehicle Intelligence Platform, or VIP). It expanded to the 2021 Tahoe, Suburban, Yukon, and Escalade, and to the 2022.5+ Silverado and Sierra, and is standard on every Ultium-platform EV.
Global B was designed for over-the-air updates, advanced driver-assist features like Super Cruise, and tighter software validation. The platform can move roughly 4.5 terabytes of data per hour — a fivefold increase over Global A — and on a Global B vehicle, virtually every module can be updated remotely. GM originally branded the in-vehicle software layer running on top of VIP as “Ultifi”; the brand was retired in 2024, but the underlying software-defined approach is unchanged.
On Global B vehicles, we focus on what the platform was designed to support: OEM-correct module replacement and VIN-matched programming that integrates cleanly with GM Service Information, OnStar, and the vehicle’s OTA stack. Brand-new factory hardware, configured before it ships, registered on the GM backend — the same factory-correct path the dealer would take, without dealer labor rates and in most cases without a dealer visit at all. Working within GM’s security validation rather than around it is what keeps our Global B installs clean and our customers’ vehicles future-proof.
Centralized Computing Platform (CCP) — coming in 2028
In October 2025, GM announced its next-generation electrical architecture: the Centralized Computing Platform, launching first in the 2028 Cadillac Escalade IQ. CCP consolidates dozens of distributed control units into a small number of high-performance compute domains, designed around AI-assisted driving, persistent cloud connectivity, and tighter feature gating. Each future GM model will move to CCP as it goes through its normal refresh cycle — so this is a multi-year rollout, not an overnight change.
What CCP means for the aftermarket is still being written. As the platform rolls out, we’ll continue to track which work remains viable and how to deliver it OEM-correct — the focus on Global A and current Global B vehicles will remain our core ground for years to come, while CCP-era vehicles join the picture as their support patterns clarify. We’ll keep our customers informed as that picture develops.
What changed in 2025: GM’s CarPlay and Android Auto reversal
GM began phasing out Apple CarPlay and Android Auto on its EVs in 2023, starting with the Chevrolet Blazer EV and Cadillac Lyriq. In October 2025, CEO Mary Barra confirmed the policy will expand to GM’s entire lineup — gas, hybrid, and electric. The transition begins with the 2028 Cadillac Escalade IQ on the new Centralized Computing Platform and rolls out model by model on each refresh cycle. Replacement infotainment is GM’s own system built on Android Automotive OS, with Gemini AI and OnStar-connected services baked in.
According to Cars.com survey data, 46% of new-car shoppers consider smartphone projection a must-have feature and 43% say it’s nice-to-have — meaning roughly nine in ten shoppers value it. That’s the gap GM is asking buyers to accept.
For our customers, the practical takeaways:
- If your GM vehicle is a 2027-or-earlier ICE model, your factory CarPlay and Android Auto support is intact for the life of the vehicle.
- If you own a GM vehicle that didn’t ship with CarPlay — most pre-2017 trucks and SUVs, plus a meaningful number of 2017–2019 vehicles depending on trim — wireless CarPlay retrofits onto factory HMI radios are still one of our most-installed services. That demand isn’t going anywhere.
- If you’re considering a brand-new GM vehicle in the late 2020s, factory smartphone projection is on borrowed time. Buy with that fact in front of you.
What changed in 2026: GM’s EV pull-back and what it means for your ICE vehicle
In early 2026, GM took another $6 billion charge against its EV program (on top of $1.6 billion in Q4 2025) and confirmed it is delaying the next generation of electric trucks — models originally targeted for 2028 are now unlikely to arrive before 2030. Orion Assembly in Michigan, which had been retooled for EV production, has pivoted back to building full-size ICE SUVs and pickups. The federal $7,500 EV tax credit expired in late 2025, and GM is now openly evaluating plug-in hybrid Silverado and Sierra variants and an extended-range electric option that uses an internal combustion engine as a generator.
Translation: the installed base of ICE GM trucks, SUVs, and cars is going to stay on the road longer than the 2021-era projections suggested. That is good news for anyone who plans to keep a vehicle for the long haul, and it is good news for the independent specialists — and the shops, fleets, and dealers — who keep those vehicles running at OEM-correct quality.
Where you stand, by vehicle generation
If you own a Global A GM vehicle (most pre-2020, many through 2022)
Your vehicle is fully serviceable, repairable, and upgradeable at OEM-correct quality. Almost everything we do — wireless CarPlay retrofits, digital cluster upgrades, BCM and HMI replacements, VIN-specific module programming — is on the menu. Module supply gets tighter as platforms age, but our policy of stocking brand-new factory hardware only (no salvage, no “tested” pulls, no your-full-unknown-history modules) means availability holds longer for our customers than for shops sourcing from scrapyards.
If you own a Global B / VIP GM vehicle (2020+ cars and SUVs, 2022.5+ trucks, all Ultium EVs)
Hardware service and OEM-correct module replacement are squarely our work. VIN-matched programming is doing more of the lifting than aftermarket flashing — which is the right way to do it on a security-aware platform. We will not unlock subscription-gated features, defeat OTA controls, or compromise the vehicle’s connection to GM’s cloud. That’s not a sales limitation; it’s how we protect the vehicle’s long-term software health and your warranty position.
If you’re buying new in 2026 or later
Buy assuming the dealer-and-cloud relationship is now part of vehicle ownership, like an OS update on a phone. Expect features behind subscriptions. Expect GM’s own infotainment platform, not Apple’s or Google’s projection layer. Expect aftermarket flexibility to keep narrowing as CCP rolls out from 2028. None of that is a reason to avoid a new GM vehicle. It is a reason to be honest with yourself about what you are buying.
What this means for our work
For two decades, our focus has been one thing: getting GM electronics right. That focus is more valuable in the next decade, not less.
For Global A owners, we are a long-term electronics-lifecycle ally. As dealers stop stocking parts and as time wears on the original electronics in your vehicle, we will keep brand-new, VIN-matched OEM hardware available — without dealer labor rates and, in most cases, without a dealer visit at all.
For Global B owners, we are an honest guide. We will tell you what’s possible, what isn’t, and where the line is. Custom VIN-programmed work carries tighter return policies than off-the-shelf parts — that’s the cost of getting it right the first time, and we’d rather have that conversation up front than after the box is open.
For shops, fleets, and dealerships, we are a backbone. Standardized configurations, brand-new hardware, no core charges, predictable turnaround, and fewer comebacks are the economics that matter to a service manager. We work with collision centers, fleet operators, and dealer service departments across the country on cluster, BCM, HMI, CSM, and infotainment work that would otherwise queue at the local dealership for weeks.
The short version
GM is moving toward software-defined, cloud-connected, dealer-controlled vehicles. The pace of that shift was overstated in 2021 and is now being reset — the federal EV tax credit is gone, the next-gen electric trucks are delayed to 2030 or later, and the installed base of upgrade-friendly Global A and Global B GM vehicles is going to stay on the road longer than anyone expected three years ago. The window for serious modernization, retrofit, and OEM-correct module work on those vehicles is wider than it looked. For GM owners and pros who care more about factory-correct operation and long-term reliability than lowest upfront price, White Automotive & Media Services is the right call.