The Complete Guide to Automatic Car Doors (Power Doors): Features, Safety, Compatible Vehicles, and How to Choose
Everything EV, SUV, and luxury-vehicle owners — and buyers — should understand before upgrading: what an automatic door system is, what it can do, whether it’s safe, which vehicles it fits, and how many doors it can cover.
What Is an Automatic Car Door (Power Door) System?
An automatic car door — also called a power door or smart power door — upgrades your vehicle’s original swing doors into intelligent, automatically opening and closing doors. No pulling or pushing by hand: the doors open on their own, close on their own, and come with a full suite of safety and smart-control features.
It’s designed to upgrade the swing doors on EVs, SUVs, luxury vehicles, and smart or custom vehicles. Depending on the model, it can support automatic opening, automatic closing, door holding, assisted opening and closing, brake-to-close, anti-pinch, anti-slam, obstacle avoidance during opening, dooring prevention, and voice or screen control.
First, it helps to distinguish four products that are easy to confuse:
- Soft close door — only completes the final closing action on a swing door; it does not open the door.
- Automatic / power door (this article) — full automatic opening and closing for swing doors; the most feature-rich option.
- Power sliding door — electric open-and-close for the sliding doors on MPVs and vans.
- Power frunk soft close kit — final soft-close pull-in for the front trunk lid.
In short: if you want doors that open and close by themselves, that’s an automatic door. If you only want a more graceful close without slamming, that’s a soft close door.
What Can an Automatic Door Do?
An automatic door is a smart system. The power door currently ships as a radar version by default, and exact functions vary by vehicle model. Common features fall into three groups:
Opening, closing, and assistance
- ✔ Automatic opening — open the door via handle, button, voice, or center screen (depending on the vehicle configuration).
- ✔ Automatic closing — the door closes and pulls fully latched at a touch or trigger.
- ✔ Door holding — the door can hold its position within a certain slope range, with motor assistance when pushed by hand.
- ✔ Assisted opening / closing — when you move the door by hand, the system assists for smoother, easier operation.
- ✔ Brake-to-close — with the door open, pressing the brake pedal can trigger closing (logic confirmed by model).
Safety protection — a complete set of door-control safety logic (detailed in the next section), including anti-pinch on closing, anti-slam, obstacle avoidance during opening, dooring prevention, delayed safety closing, and driving safety closing.
Smart interaction — selected models support opening and closing via voice or the center screen.
Safety First: A Full Suite of Door-Control Protection
Alongside the convenience, what matters most is a complete set of safety logic (final behavior depends on the vehicle):
- ✔ Anti-pinch on closing — if an obstacle is detected while the door is closing, the door can stop and warn, reducing the risk of a pinch injury.
- ✔ Anti-slam — if someone pushes the door shut too quickly, the system senses the speed and applies reverse motor control to reduce the impact and wear of a hard slam.
- ✔ Obstacle avoidance during opening — the system can detect obstacles outside the door and stop opening when needed, avoiding scrapes.
- ✔ Dooring prevention — when approaching traffic or a risk is detected behind, the system can restrict or intervene in door opening to reduce “dooring” accidents.
- ✔ Delayed safety closing — if the door stays open with no operation, it can close automatically (logic per the vehicle solution).
- ✔ Driving safety closing — with a door open, shifting gears can trigger the doors to close (logic confirmed by model).
Of these, anti-slam is a safety feature unique to power swing doors. Because the power door now ships as a radar version by default, radar-assisted features such as obstacle avoidance and dooring prevention are already included. A non-radar version is available on a custom basis if required.
Multiple Control Methods to Suit a Smart Driving Experience
Depending on the vehicle configuration, an automatic door can be triggered and controlled in several ways:
- ✔ Exterior handle / exterior button
- ✔ Interior button
- ✔ Voice control
- ✔ Center-screen control
Which control methods are supported depends on the vehicle and its onboard systems, and can be confirmed to suit your needs.
Important: Compatibility and Functions Vary by Vehicle
An automatic door is a vehicle-specific solution. The number of doors supported and the available functions differ from model to model — so there’s no “universal” fit, and four-door coverage can’t be assumed.
One important note: the power door currently ships as a radar version by default (with radar-assisted safety features such as obstacle avoidance and dooring prevention). A non-radar version is not offered separately — if you specifically need one, it can be handled as a custom order.
Here are the latest compatible vehicles (as of June 2026):
- Tesla Model Y series (including the new Model Y and Model YL): the automatic door supports the driver and front passenger doors only — the rear doors are not supported.
- AITO M7 / M8 / M9, NIO ES6 / ES8, and Xiaomi YU7 support four-door installation (confirmed per model). The Xiaomi YU7 has two fitment versions: MAX and Standard.
New models are added regularly. If your vehicle isn’t listed, it doesn’t necessarily mean it’s unsupported — send us the details and we can check or evaluate.
A Note on Installation
- Non-destructive approach — a vehicle-specific solution with plug-in harness connection and no wire cutting (depending on the vehicle solution).
- Confirm before installation — vehicle model, year, market version, door position, target functions, and quantity (the power door ships as a radar version by default; please note if you need a non-radar version).
- Technical support — installation guidance, installation videos, or remote technical support are available.
Because an automatic door involves opening/closing drive, sensing, and safety logic, we recommend installation by an experienced shop or technician to ensure smooth operation and correctly functioning safety features.
Why Buy Your Automatic Door Direct From the Manufacturer?
An automatic door combines opening/closing drive, sensing, safety logic, and vehicle integration — placing higher demands on R&D capability, depth of fitment, and after-sales support. Buying from a factory with real R&D and production capability — rather than a middleman trader — protects you at the source.
Ruiyyco / Hangzhou Ruiyyco Automobile Technology Co., Ltd. is a dedicated automotive smart door system manufacturer:
- Founded in 2017, with a 10,000+ m² factory and office area and 100+ employees;
- Certified to IATF16949 and ISO9001 quality management systems;
- Holder of 80+ patents;
- Annual power door capacity of about 130,000 sets;
- Full in-house capability: R&D, structural design, sample development, mass production, quality inspection, OEM/ODM customization, custom packaging, and after-sales technical support.
We support sample orders, custom packaging, and OEM/ODM cooperation, and can tailor project-based solutions by vehicle model, door layout (front or four doors), control method, and safety logic (radar version by default, with a non-radar version available on a custom basis) — serving distributors, retrofit shops, e-commerce sellers, fleet customers, and project or brand clients.
Frequently Asked Questions
Q: Is an automatic door the same as a soft close door?
A: No. A soft close door only completes the final closing action on a swing door and does not open it. An automatic door opens and closes swing doors automatically and includes a full suite of safety and smart features.
Q: Can every car have four automatic doors?
A: No. Four-door support depends on the vehicle. For example, AITO M7 / M8 / M9, NIO ES6 / ES8, and Xiaomi YU7 support four doors, while the Tesla Model Y series supports only the driver and front passenger doors — the rear doors are not supported.
Q: Is there a non-radar version?
A: The power door currently ships as a radar version by default, with radar-assisted safety features such as obstacle avoidance and dooring prevention. A non-radar version isn’t offered separately, but can be handled as a custom order if needed.
Q: What is anti-slam?
A: When someone pushes the door shut too quickly, the system senses the speed and applies reverse motor control to reduce the impact of a hard slam. It’s a safety feature unique to power swing doors.
Q: Can the NIO ES6 be fitted?
A: Yes. The NIO ES6 (2023+) is within our compatible range. Please provide the exact year and market version so we can confirm the solution.
Q: Do you support sample orders and custom packaging?
A: Yes. Sample orders and custom packaging are supported. Please provide your vehicle model, year, market version, door position, target functions, quantity, and destination country, and we’ll confirm the solution and quotation.
Ready to Upgrade?
Send us your vehicle brand, model, model year, market version, the door positions you want, and the functions you’re after — and we’ll confirm compatibility, feature configuration, and the right cooperation plan. From single-vehicle upgrades to project cooperation, and from neutral packaging to full custom branding, Ruiyyco has you covered.