Over-the-air (OTA) updates let automakers push software changes to a car remotely, covering anything from infotainment bug fixes and map updates to ADAS calibration tweaks, battery management changes, and even some safety recalls. Tesla pioneered broad OTA use; by 2026, GM, Ford, Rivian, Hyundai/Kia, and most EV-focused brands support some level of it, though depth varies a lot — some brands only patch infotainment, while others can update powertrain and safety-critical software. NHTSA has approved a growing number of OTA-delivered recall remedies since around 2021, which can resolve certain issues without a dealer visit, though many hardware-related recalls still require an in-person fix.
At a glance
| Update type | Typical delivery method (2026) |
|---|---|
| Infotainment bug fixes/UI changes | OTA on nearly all connected vehicles |
| Map and navigation data | OTA on most connected vehicles |
| ADAS calibration/feature updates | OTA on Tesla, GM Ultium, Rivian, several others |
| Battery management software | OTA on most EVs |
| Safety recalls (software-fixable) | Growing share OTA since ~2021, NHTSA-approved case by case |
| Safety recalls (hardware-related) | Still require a dealer/service visit |
How OTA updates actually reach your car
Most vehicles with OTA capability use a built-in cellular modem (similar to a phone's data connection) to check in with the automaker's servers, download an update package, and install it — sometimes while parked and charging, sometimes during a drive with the install completing once parked. Some automakers also support Wi-Fi-based updates as a backup or for very large downloads to avoid cellular data caps.
What OTA updates commonly fix or add
The most frequent OTA updates are mundane: bug fixes for infotainment freezes, small UI tweaks, and map data refreshes. More consequential updates can adjust how ADAS features like adaptive cruise or lane-centering behave, recalibrate driver-assist camera systems, or change battery charging curves and range estimation algorithms on EVs. Tesla has also used OTA updates to add genuinely new paid features post-purchase, a model other automakers have partly followed.
Real examples of OTA-delivered fixes
- Tesla has resolved several NHTSA investigations via OTA updates to ADAS behavior rather than a physical recall
- Ford issued OTA updates addressing certain BlueCruise hands-free driving behavior
- GM has used OTA updates for Ultium-platform EVs to adjust battery thermal management and charging behavior
- Rivian has pushed OTA updates covering everything from suspension tuning to infotainment overhauls
What OTA still can't fix
Anything requiring a physical part change — a faulty wiring harness, a defective airbag inflator, a mechanical brake issue — still needs an in-person service visit, no matter how software-capable the car is. NHTSA tracks and must approve OTA-delivered recall remedies, and it draws a clear line: software-root-cause defects can sometimes be fixed remotely, but hardware defects cannot.
Don't assume 'no recall letter' means no issue if you haven't accepted a pending OTA update — some automakers count a delivered-but-not-yet-installed OTA fix as complete on their end, so check your infotainment settings for pending updates rather than relying solely on mailed notices.
How to stay current
Keep your car's cellular/data connection active (most included free for a set number of years) and check the infotainment settings menu periodically for a pending-update indicator. If an automaker's app shows a connectivity or subscription lapse, OTA delivery can stop working even though the car is otherwise fine — reconnecting service typically restores it.
Frequently asked questions
Can car recalls be fixed with an over-the-air update?
Do all new cars support over-the-air updates?
Does an OTA update cost anything?
Can an OTA update change how my car drives?
How do I know if my car has a pending OTA update?
Sources & further reading
- NHTSA — Software Recalls and OTA Updates
- SAE International — Automotive Standards
- Consumer Reports — Car Technology
Figures, prices and policy details were current at the last-updated date above. Automotive pricing, incentives and regulations change frequently — verify time-sensitive details with the linked primary sources. Read our editorial policy and fact-checking standards.
