Silverado Full Screen CarPlay: Why It's Blocked and How to Fix It

If you own a newer Chevrolet Silverado with the big 13.4-inch screen, you've probably noticed something annoying. Apple CarPlay doesn't use the whole display. Android Auto can go full screen. GM's own Google Maps can go full screen. But CarPlay? It gets squeezed into a box while a GM sidebar just sits there taking up space.

You're not imagining things, and your screen isn't broken. This is a deliberate GM decision, and it frustrates a lot of Silverado owners.

The good news is there are real ways to fix it. I'll walk you through all of them.

Key Takeaways

• CarPlay on the 2022+ Silverado's 13.4-inch screen is locked to roughly 70% of the display by GM's software
• This is not a hardware or Apple limitation — GM made this choice on purpose
• Android Auto and GM's built-in Google Maps can both run full screen on the exact same hardware
• There is a free software trick (the "Smallest Width" hack) that makes CarPlay much bigger without any hardware
• AI boxes like the CarLinkit Android Pixel Box can deliver near full screen CarPlay by routing it through Android Auto
• Owners of 2014-2018 Silverados have a different situation — a Tesla-style replacement screen is often the best move
• GM has not released an official update to enable full screen CarPlay, and may not given their push toward Google built-in

The Silverado Infotainment System and the Full Screen CarPlay Problem

How Silverado infotainment evolved

The full screen CarPlay frustration is really a story of two different Silverado eras.

On 2014-2018 models, the factory system used smaller displays and GM's MyLink software. CarPlay support was limited or absent on many of those trucks, and the screens were modest in size. The "full screen vs. partial screen" debate wasn't much of a conversation back then because the screens weren't big enough to make it matter.

That changed with the 2022 Silverado refresh. GM introduced a massive 13.4-inch landscape display powered by Android Automotive OS (what GM calls "Google built-in"). This platform runs native Google Maps, Google Assistant, and the Google Play Store directly on the truck. It also supports wireless Apple CarPlay and wireless Android Auto.

Suddenly, owners were sitting in front of a huge, capable screen — and noticing that CarPlay was only using part of it.

Why CarPlay doesn't go full screen on the Silverado

Here's the thing most people don't realize: CarPlay is not an app that runs on the car. It's a projection protocol. Your iPhone renders the CarPlay interface and streams it to the vehicle. The car's system then decides how much screen space to give it.

GM has chosen to give CarPlay about 70% of the 13.4-inch display, according to GM Authority. The remaining 30% is a persistent GM sidebar showing shortcuts to native apps and controls. You can't dismiss that sidebar when CarPlay is active.

According to GM Authority, an automotive source with insight into GM's development said there is "not one single technological limitation" preventing GM from giving CarPlay the full screen. It's described as a purely artificial limitation. The hardware can do it. The OS can do it. GM has just chosen not to.

The comparison that frustrates owners the most? Android Auto can go full screen on the same truck. So can GM's built-in Google Maps. Same screen, same OS — but CarPlay gets a smaller slice.

Why would GM do this?

The most likely reason comes down to business. GM's Google built-in platform is tied to OnStar subscriptions and connected services. Their native Google Maps navigation — which can require an active subscription for long-term use — is the one that gets the full-screen treatment.

Multiple Silverado owners on Reddit have pointed this out directly. One commenter put it plainly: "GM encourages us to use the built-in Google Maps with a subscription, hence it is in full screen."

If CarPlay could command the whole screen, many iPhone users would have no reason to use GM's services at all. That's a revenue concern, not a technical one.

Is Apple blocking full screen CarPlay?

No. This is a common misconception. Other automakers offer full screen CarPlay on comparable or larger displays without any issue. Chrysler vehicles, for example, have a button that cycles CarPlay through layout modes including true full screen. The restriction is on GM's end.

What You Can Actually Do About It

Before getting into modifications, let's be clear on one thing. No combination of taps inside the CarPlay interface will remove GM's sidebar. When you tap the Maps icon inside CarPlay to expand the map, you're making the map fill the CarPlay frame — GM's sidebar is still there. That is not full screen CarPlay.

True full screen means CarPlay takes over the entire display with no GM chrome around it. To get there, you need one of the methods below.

Option 1: The Free Software Fix (Smallest Width Hack)

What this is

This is a developer settings trick that exploits Android Automotive OS to make CarPlay appear significantly larger on the 13.4-inch display. It costs nothing, requires no hardware, and can be reversed.

This method requires your Silverado to be running Android Automotive OS 12 (AAOS 12). Not all trucks shipped with it, but some owners have manually installed it via USB using files from XDA forums.

How to do it

1. On the infotainment screen, go to Settings, then System, then About
2. Find "Build number" and tap it repeatedly — about seven times — until a message confirms developer mode is active
3. Go back to the System menu and you'll see a new "Developer options" entry
4. Inside Developer options, scroll down to find "Smallest width"
5. The default value is around 768 — change it to 1280
6. Some guides also recommend enabling "Allow apps to be resizable" in the same menu
7. Restart the infotainment system by holding the mute or end-call button on your steering wheel until it reboots

After the reboot, CarPlay will occupy much more of the screen. The GM sidebar shrinks significantly and the CarPlay interface expands in a way that feels close to full screen.

What to expect

The overall UI will look a little different. Icons and fonts appear smaller because the system is now treating the display as having higher density. Some owners describe it as "wonky" at first but acceptable once you get used to it.

CarPlay itself will look noticeably larger and more immersive. It's not technically pixel-perfect full screen in every case, but most owners who've done this describe it as a real improvement.

The main risk is that GM could disable or change developer options in a future over-the-air update. It's also worth knowing that changing developer settings is not officially supported, which could complicate dealer support if you have issues down the road.

Option 2: AI Boxes and Dongles

If you'd rather not touch any system settings, hardware adapters are a popular alternative. These devices plug into your Silverado's USB port and essentially trick the truck into granting full screen permissions.

The key insight is simple: since GM allows Android Auto to go full screen, any device that makes the truck think it's dealing with an Android Auto session can inherit those full screen privileges. The device then runs CarPlay inside that full screen Android environment.

At Car Tech Studio, we've seen these adapters work well across a wide range of vehicles. The Silverado is no exception.

CarLinkit Android Pixel Box

This is one of the most talked-about options for the 13.4-inch Silverado. A YouTube reviewer tested it specifically on a GMC Sierra (which shares the same infotainment architecture) and described it as a genuine solution to the "squished" CarPlay problem.

Here's how it works:

• The Pixel Box plugs into the USB port normally used for CarPlay or Android Auto
• The truck recognizes it as an Android device
• The box runs an app called AutoKit, which wirelessly connects to your iPhone and hosts the CarPlay session
• The critical step: configure the Pixel Box to operate in Android Auto mode, not CarPlay mode
• The truck then grants it full screen Android Auto privileges, and CarPlay runs inside that full screen Android environment

The box also supports wireless CarPlay and Android Auto, has its own 4G connectivity option, and can run streaming apps like YouTube and Netflix directly. It works across any vehicle that has wired CarPlay or Android Auto, so you can move it between trucks if needed.

Carlinkit TBox Plus

This is a more affordable option, often cited in owner forums at around $120. It works similarly — functioning as an Android box that presents itself to the truck's system and can run CarPlay inside an Android environment. Facebook groups for 2024 Silverado owners frequently recommend it as a workaround for the full screen CarPlay issue.

Carlinkit CPC200-CCPA with the Carlink AAOS App

This is the most technically advanced setup, but also the most deeply integrated. A Reddit user on r/gmcsierra documented the full process.

The CPC200-CCPA dongle handles communication with the iPhone and manages the CarPlay session independently of GM's native CarPlay stack. On the truck side, a companion app called Carlink runs on the vehicle's Android Automotive OS and serves as the visual front-end for CarPlay.

The catch: the Carlink app isn't easy to get. Because some GM systems don't allow simple sideloading, the owner in question uploaded the Carlink APK to a Google Play Console internal testing track — which requires a one-time $25 developer account fee — and then signed into the truck's Google Play Store with that account to install it.

The result is CarPlay running as a native full screen app inside Android Automotive OS — genuinely full screen, no sidebar, completely integrated into the truck's system. It's a more involved setup, but it delivers the cleanest result.

Comparing your hardware options

Approach	How the truck sees it	Full screen result	Extra features	Complexity
CarLinkit Pixel Box	Android Auto device	Yes, via AutoKit in Android Auto mode	Streaming apps, 4G, wireless CarPlay/AA	Moderate
TBox Plus	Android box	Yes, when configured correctly	Apps, wireless CarPlay	Low to moderate
CPC200 + Carlink App	CarPlay dongle + AAOS app	Yes, native full screen AAOS app	Wireless CarPlay, deep integration	High

Option 3: Tesla-Style Replacement Screen (Older Silverados)

For owners of 2014-2018 Silverado models, the situation is different. These trucks don't have the 13.4-inch Google built-in system, and their factory units are older and less capable. Trying to unlock full screen CarPlay on a small, outdated factory screen has limited upside.

The better path for these trucks is a full head unit replacement with a Tesla-style screen.

What a Tesla-style screen does

Tesla-style screens are large vertical or landscape touchscreens that replace the factory radio entirely. They run their own version of Android and have full control over the display. Because they're not running GM's software, there's no GM-imposed CarPlay restriction. CarPlay runs full screen because the aftermarket unit decides the layout — and it's designed with CarPlay in mind.

At Car Tech Studio, we offer a 14.4-inch Tesla-style screen specifically for the Chevrolet Silverado 2014-2018. It replaces the factory unit with a modern display that supports wireless CarPlay, Android Auto, streaming apps, and a full suite of vehicle integrations.

What installation involves

Replacing the head unit on a modern truck means more than just swapping screens. The factory system communicates with vehicle electronics over the CAN bus, controlling things like climate settings, parking sensors, and sometimes safety systems. A proper installation uses vehicle-specific wiring harnesses and CAN bus interfaces to make sure steering wheel controls, backup cameras, and other features keep working.

When done correctly, the result feels like it came from the factory. And since CarPlay is running under the aftermarket unit's own software, it takes up the full screen without any workarounds.

Is it worth it for newer Silverados?

For 2022+ trucks with the 13.4-inch screen, a full replacement is a much bigger undertaking. The screen is deeply integrated into the truck's design and tied to the Android Automotive OS platform. Most owners in this group are better served by AI boxes or the developer settings tweak rather than a full replacement.

GM's Strategy and What to Expect Going Forward

Google built-in is GM's long-term bet

Chevrolet has been explicit about its direction. The Google built-in platform now spans the Silverado, Tahoe, Suburban, Colorado, Blazer EV, Equinox EV, and more. It's GM's unified infotainment strategy, and it's built on keeping Google services central to the in-vehicle experience.

This matters when thinking about full screen CarPlay. As one Reddit commenter observed, GM has every incentive to keep its native Google Maps visually prominent. Allowing CarPlay to take over the whole screen works against that goal.

GM is moving away from CarPlay on EVs

GM has publicly announced plans to remove Apple CarPlay and Android Auto from certain future EV models entirely, citing safety and deeper vehicle integration as the reason. Whether safety is the real driver or whether it's about ecosystem control is debated — but the direction is clear.

If GM is planning to phase out CarPlay on new vehicles, the odds of them investing engineering effort to improve CarPlay's layout on current trucks seem low. The community workarounds in this post are likely to remain the primary path to full screen CarPlay on the Silverado for the foreseeable future.

OTA updates haven't solved it yet

GM's recent N25-250380 software update for 2025 Silverado and Sierra trucks focused on Bluetooth connectivity, audio performance, steering wheel control fixes, and display stability. No changes to CarPlay's layout behavior were included. This fits the broader pattern: GM's updates refine the existing experience rather than expanding CarPlay's footprint.

Some Reddit threads mention rumors of a future CarPlay update that would let it take over both the center screen and the instrument cluster. Those threads also note that such an update would likely require dealer reprogramming — and nobody has documented it happening in production trucks yet.

Which Path Is Right for You?

2014-2018 Silverado owners

Your factory system is older and limited. If full screen CarPlay matters to you and you plan to keep this truck, a Tesla-style replacement screen for the Chevrolet Silverado is the most complete solution. It brings the whole infotainment experience up to modern standards — not just CarPlay.

2019-2021 Silverado owners

Your trucks have capable infotainment but not the 13.4-inch system. An AI box can add wireless CarPlay and improve the layout, but the screens aren't as wide so the full screen difference is less dramatic. Focus on wireless convenience as much as screen size.

2022+ Silverado owners with the 13.4-inch screen

You have the most options. Pick based on how comfortable you are with each approach:

• Free and reversible: Try the Smallest Width developer hack if your truck runs AAOS 12
• Hardware with no software changes: Get a CarLinkit Android Pixel Box and configure it to Android Auto mode
• Deepest integration: Use the CPC200-CCPA dongle with the Carlink AAOS app if you're comfortable with a $25 Play Console setup and some technical steps

All three approaches can genuinely improve the CarPlay experience on the 13.4-inch screen. The best one depends on your comfort level and how much you enjoy tinkering.

Frequently Asked Questions

Why can Android Auto go full screen on my Silverado but CarPlay can't?

GM's software grants full screen privileges to Android Auto but not to Apple CarPlay. According to GM Authority, this is a deliberate software decision by GM — not a hardware or technical limitation. The same 13.4-inch screen that restricts CarPlay runs Android Auto and GM's own Google Maps in full screen without any issue.

Will tapping the map icon inside CarPlay make it full screen?

No. Tapping the Maps icon inside CarPlay expands the map within the CarPlay frame, but GM's sidebar remains visible alongside it. The CarPlay frame itself doesn't expand. This is a common misconception in owner forums.

Is GM planning to fix this with a software update?

There's no confirmed update scheduled to address this. GM's recent infotainment updates have focused on Bluetooth, audio, and connectivity fixes rather than CarPlay layout changes. Given GM's push toward Google built-in services and their announced plan to remove CarPlay from some future EVs, an official fix seems unlikely in the near term.

Does the Smallest Width hack void my warranty?

GM does not officially support changes to developer settings. Whether it affects warranty coverage depends on your specific situation and dealer. Changing developer settings doesn't modify the vehicle's mechanical systems, but it does put the infotainment software outside its factory configuration. You can reverse it by restoring the original Smallest Width value.

Do AI boxes like the CarLinkit Pixel Box cause any lag in CarPlay?

Some lag is possible with any wireless CarPlay solution. Users who have tested the Pixel Box on Silverado and Sierra trucks report that performance is generally smooth, especially after enabling higher refresh rate options in the box's settings. Occasional disconnections can happen but aren't frequently reported as a major issue.

Can I get full screen CarPlay on a 2016 Silverado?

Not through a software hack — the 2016 Silverado uses a different factory system without Android Automotive OS. Your best option is replacing the head unit with an aftermarket Tesla-style screen, which runs its own Android OS and gives CarPlay full control of the display. We carry a 14.4-inch Tesla-style screen built specifically for the 2014-2018 Silverado.

What's the cheapest way to get bigger CarPlay on a 2022+ Silverado?

The Smallest Width developer settings trick is completely free. It requires AAOS 12 on your truck and takes about 10-15 minutes to do. The result is a noticeably larger CarPlay interface that many owners consider a significant improvement over the stock layout.

Will GM eventually support full screen CarPlay on the Silverado?

Possibly, but there's no evidence it's coming soon. GM has demonstrated the technical capability — some GM SUV platforms reportedly support more flexible layouts — but their overall strategy is moving away from smartphone projection and toward native Google-based services. The community workarounds in this article are likely to remain the most reliable paths for the foreseeable future.