Which electric car has the best automatic OTA updates?

I had a notification on my phone this morning: "Tesla update available, version 2026.2.6." I launched it from the app, it installed while the car was parked. When I got in twenty minutes later, the interface looked different, Autopilot was slightly improved, and Grok was answering questions in French.

My neighbour with a competing model, bought at a similar price, will have to go to the dealer next year for a comparable update. That's where OTA actually makes a difference.

What exactly does an OTA update cover on an EV?

Straight answer: not all OTA is equal. There's a hierarchy of what can be updated remotely:

A brand that says "OTA updates available" could mean any of these levels. The question to ask at the dealer: do the updates touch the vehicle itself, or just the navigation?

Which manufacturers offer the best OTA updates in 2026?

Tesla, undisputed leader. Frequency: every 1 to 4 weeks. Scope: the entire vehicle — Autopilot, interface, battery management, safety, new features. It's the only manufacturer that regularly improves range through software (charging curve optimisation, better battery preconditioning). Release notes are publicly available, so you know exactly what each update changes.

Hyundai / Kia (Bluelink / Kia Connect), solid over 10 years. 2 to 4 major updates per year, covering the full vehicle software. The 10-year inclusion commitment is unique on the market. On an Ioniq 6 bought in 2024, the 2026 driver assistance features are improved compared to launch.

Polestar / Volvo (Android Automotive), open architecture advantage. Google OS updates arrive automatically + Polestar/Volvo patches. Less frequent than Tesla, but reliable and substantial. Polestar publishes its release notes.

BMW (iDrive OTA), quarterly, good quality. 3 to 4 updates per year, covering infotainment, iDrive and some ADAS features. The iX3 Neue Klasse with iDrive X is designed around an SDV architecture with frequent updates.

Mercedes (MB.OS on new generation), on the rise. The CLA and MB.OS models benefit from frequency close to Hyundai. The older EQS and EQE: OTA for navigation and MBUX, but less deep than the new models.

VW ID (2 to 3 per year, validation required). Less frequent and less deep than Tesla or Hyundai. Installation requires driver validation and can block the car for 40 minutes to 3 hours. But the updates are free and the latest ones have significantly improved Travel Assist and interface responsiveness.

Do OTA updates actually affect resale value?

A 2022 Tesla Model 3 resold today: it has received dozens of updates since purchase. Autopilot is better. The interface is more complete. Battery management is refined. The second-hand buyer is getting a vehicle that's better in software terms than when it was new.

A vehicle without OTA or with limited OTA is frozen in its factory state. Over 4 years of ownership, the gap can be significant, especially for ADAS features that are progressing quickly.

For short leases (24-36 months), it's secondary. For a purchase with resale at 4 years, OTA is a real residual value factor to include in the TCO calculation.

Autoscout24 and Cardoen listings in Belgium are starting to reflect this gap. In 2025, 2022-2023 Tesla Model 3s trade at a lower depreciation rate compared to competing vehicles from the same year, partly because buyers know the software is up to date. On a 2022 Ioniq 5 with Bluelink, the same effect: driver assistance updates have added features that weren't there at launch.

How does an OTA update actually install in practice?

The process varies by manufacturer, but the general sequence is as follows.

Tesla: a notification appears in the app or on the vehicle's screen. You choose "Install now" or "Postpone to 10 PM". The vehicle restarts its systems, the screen shows a progress bar. Duration: 15 to 30 minutes. You can't drive during installation. The update runs via home Wi-Fi or the built-in 4G modem — no cable needed.

Hyundai (Bluelink): notification in the Bluelink app. Installation starts automatically if the vehicle is parked and connected to Wi-Fi. Most updates install in the background without intervention. Major updates ask for confirmation. Duration: 20 to 90 minutes depending on size.

VW (We Connect): a notification appears in the myVolkswagen app. You confirm on your phone or directly in the vehicle. VW recommends being parked and plugged in during installation. Installation can take up to 3 hours for large software updates. The vehicle is unusable during this time.

Polestar: Google system updates arrive automatically, like on an Android tablet. Polestar-specific updates appear in system settings. The experience is the closest to a phone or tablet.

What to check before buying a second-hand EV regarding OTA

For a used EV, the OTA update history matters. Here are the points to check.

Current software version: ask which version is installed. For Tesla, compare with the current version on notateslaapp.com. A gap of more than 6 months means the previous owner didn't install updates or connectivity was failing.

Active connectivity subscription: some OTA requires an active network subscription (Hyundai Bluelink, VW We Connect+). Check whether the subscription is included in the remaining period or needs renewal. On Hyundai, the 10 years are tied to the vehicle, not the owner — they transfer to the buyer.

Update history: on Tesla, you can view the update history in the vehicle's settings. On other brands, the dealer can access this history through diagnostic tools.

Onboard network connectivity: some older models (first-gen ID.3 from 2020, some early-production Ioniq 5s) had more limited 4G connectivity that slowed OTA. Check that the built-in SIM card is active and that the vehicle is properly registered on the manufacturer's network.