Updating a car infotainment system depends on the vehicle: check the software version, download the matching package, and install it while parked.
What works for one car can fail on another, so learning how to update a car infotainment system starts with identifying the path your vehicle uses. Some systems pull updates over the air through built-in Wi-Fi or cellular. Many others still need a PC download followed by a USB or SD card install. The process follows the same skeleton either way: check the software version, get the matching package, then install it safely while parked.
Which Update Method Does Your Car Use?
Your car uses one of three update routes: an over-the-air download, a USB/SD install, or a phone-projection update that never touches the car’s firmware. Checking the software version first tells you which one applies.
Over-the-air (OTA) updates arrive through built-in Wi-Fi or cellular and install from the infotainment menu. The USB/SD route is more common than many owners expect: you download the software on a PC or Mac, copy it to a drive, then run the update in the car. Apple CarPlay and Android Auto are separate — they update through your phone, not through the car’s head unit.
| Update Path | How It Works | Typical Use |
|---|---|---|
| Over-the-air (OTA) | Software downloads to the car over Wi-Fi or cellular and installs from the settings menu. | Newer connected cars with frequent small updates. |
| USB/SD card | You download the package on a computer, copy it to media, and run Update in the vehicle. | Most current factory systems, especially map and navigation updates. |
| CarPlay / Android Auto | The phone’s own apps update independently of the vehicle’s firmware. | Phone-projection features, not the head unit itself. |
Finding The Update Your Vehicle Actually Needs
The update only works if it matches your exact system, so check the version before you download anything. Hyundai’s US navigation update site, for example, asks for your VIN or vehicle type and tells you to check Setup > General > SW Info/Update.
On many systems the System Version appears in a format like aaaa.bb.cc, and the first four alphanumeric characters are the Model Code. That code tells the portal which software package your head unit needs. Hyundai Europe uses a similar flow: search by vehicle or model name, pick a storage location, and download the package to your computer.
Hyundai separates updates into infotainment software only, map only, or both. When both are selected, the software installs first and the map follows. Get the package from the manufacturer’s own portal — for Hyundai, that means Hyundai’s official navigation update website. A package meant for a different trim, region, or system version can interrupt the installation or leave the head unit stuck on the old build.
Regional availability varies. Hyundai’s US portal uses VIN lookup; its European portal uses model-name lookup. Connected-car services handle updates differently too — Nissan’s OTA updates run through NissanConnect on vehicles like the ARIYA, and GM’s OnStar updates are tied to Connected Access or Wi-Fi rather than a paid data plan.
Installing The Update Safely
Install the update with the car parked and the ignition in the state your owner’s manual specifies. Hyundai’s US display-audio guide says to connect the USB or SD card, open Settings > General > SW Info/Update, and select Update. It lists a typical install time of 10–15 minutes. Hyundai’s Europe guidance adds two warnings: keep the engine running and don’t disconnect the drive or cut power until the update finishes.
A weak battery is a real failure point. Hyundai says the battery should be sufficiently charged so the navigation system doesn’t shut down mid-install. The same logic applies to OTA updates: start them parked, keep the car on, and wait for the screen to confirm the install before driving.
The most common mistake is expecting the update to appear by itself on the screen. Many vehicles never check online in the background. Another frequent mix-up is treating Apple CarPlay or Android Auto problems as head-unit issues — those platforms update through your phone, and CarPlay compatibility itself is controlled by the car manufacturer.
For a quick reference, the safe sequence is: check SW Info/Update, note the Model Code or system version, download the matching package from the manufacturer portal, copy it to USB or SD media, and run Update with the engine running or ignition on. Leave the drive in place until the screen reports completion.
If replacing the factory unit sounds better than updating it, our tested car infotainment system roundup covers the strongest aftermarket options.
FAQs
Why won’t my car find an update on its own?
Most cars only check for updates when you tell them to, and some never check automatically. You often need to download the update on a PC, copy it to a USB or SD card, and run Update from the infotainment settings. Start by checking the system version and visiting the manufacturer’s official update portal.
Does updating the car also update CarPlay or Android Auto?
No. Apple CarPlay and Android Auto run from your phone and update through the phone’s normal software updates. CarPlay compatibility with your vehicle depends on the car manufacturer, but the apps themselves are not part of the head unit’s firmware package.
How long should an infotainment update take?
It depends on the package and the vehicle. Hyundai’s display-audio guide lists about 10–15 minutes for its USB/SD update. Large map updates can take longer. Keep the engine running or the ignition in the required state, and don’t remove the drive or turn off the car until the screen confirms completion.
References & Sources
- Hyundai USA. Official Navigation Update Website. Official portal for VIN-based software and map updates.
- Hyundai Owner’s Manual. Infotainment System Settings. Documents the SW Info/Update menu and version screen.
- Hyundai Motor Europe. Software Updates. Explains the USB/SD download and install process, including the engine-running warning.