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Transportation

Why Your Car's Touchscreen Is More Dangerous Than Your Phone (carsandhorsepower.com) 98

"Modern vehicles have quietly become rolling monuments to terrible user experience, trading intuitive physical controls for flashy but dangerous touchscreen interfaces," argues the site Cars & Horsepower, decrying "an industry-wide plague of poorly designed digital dashboards that demand more attention from drivers than the road itself." The consequences are measurable and severe: studies now show touchscreen vehicles require up to four times longer to perform basic functions than their button-equipped counterparts, creating a distracted driving crisis that automakers refuse to acknowledge. A Swedish car magazine, Vi Bilägare, conducted a study [in 2022] comparing how long it takes drivers to perform basic tasks like adjusting climate controls or changing the radio station using touchscreens versus traditional physical buttons. The results showed that in the worst-performing modern car, it took drivers up to four times longer to complete these tasks compared to an older vehicle with physical controls... Even after allowing drivers time to familiarize themselves with each system, touchscreen-equipped cars consistently required more time and attention, which could translate into increased distraction and reduced safety on the road....

A seminal 2019 study from the University of Utah found drivers using touchscreens exhibited:

- 30% longer reaction times to road hazards
- Significantly higher cognitive workload (as measured by pupil dilation)
- More frequent and longer glances away from the road

The reason lies in proprioception — our body's ability to sense its position in space. Physical controls allow for muscle memory development; drivers can locate and manipulate buttons without looking. Touchscreens destroy this capability, forcing visual confirmation for every interaction. Even haptic feedback (those little vibrations mimicking physical buttons) fails to solve the problem, as demonstrated by a 2022 AAA study showing haptic systems offered no safety improvement over standard touchscreens...

A study from Drexel University introduced a system called [Distract-R](), which uses cognitive modeling to simulate how drivers interact with in-vehicle interfaces. It found that multi-step touchscreen tasks increase cognitive load, diverting attention from the road more than physical buttons.... Furthermore, a systematic review on driver distraction in the context of Advanced Driver Assistance Systems (ADAS) and Automated Driving Systems (ADS) highlights that even with automation, drivers remain vulnerable to distraction, especially when interacting with complex interfaces...

There's also software reliability issues (even before the issue of "feature paywalls"). But some manufacturers are going back, according to the article. "After receiving widespread criticism, Porsche added physical climate controls back to the Taycan's center console. Nissan's latest concepts feature prominent physical buttons for common functions..." And Mazda eliminated touch capability entirely while moving, "forcing use of a physical control knob... The system reduces glance time by 15% compared to touch interfaces while maintaining all modern infotainment functionality."

The article recommends consumers prioritize physical controls when vehicle shopping, seeking out models with buttons. But there's also "aftermarket solutions," with companies like Analog Automotive "developing physical control panels that interface with popular infotainment systems, bringing back tactile operation." Another option: voice commands (like on GM's latest systems).

"Ultimately, the solution requires consumer pushback against dangerous interface trends.... The road deserves our full attention, not divided focus between driving and debugging a poorly designed tablet on wheels."

Thanks to long-time Slashdot reader schwit1 for sharing the article.

Why Your Car's Touchscreen Is More Dangerous Than Your Phone

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  • Modern cars are just horrible due the money you get by selling data, phones with wheels.
    Just when technology makes possible to create extremely reliable vehicles, as electric cars are very simple devices without the tablet shit.

  • by paul_engr ( 6280294 ) on Saturday June 21, 2025 @09:45PM (#65466753)
    There's no muscle memory with pixels. Particularly since there's never a good place to brace your hand to reach halfway across a 12" wide screen to at least get in the ballpark without looking.
    • That - and now add all the nanny functions that exists in newer cars. Force the car to the center of the lane where the road has most eear so that you can get hydroplaning easier when it's raining as one example.

      • That - and now add all the nanny functions that exists in newer cars. Force the car to the center of the lane where the road has most eear so that you can get hydroplaning easier when it's raining as one example.

        "Force" overstates the matter significantly.

        First, I can't name a car where the function isn't optional-on-demand. Meaning that you can press a button to disable it entirely.
        Second, the steering wheel always overrides lane-assist. If you want to stay further left or right than the car encourages, you can totally do that.

        Lane assist is really there as a safety-net for attention-lapses. Shut it off when you're in heavy traffic or inclement weather... unless visibility is poor and you've got Highway Dr

        • by Z00L00K ( 682162 )

          On Euro cars it defaults to on automatically every time you start the car.

          Now I need to go through four pages just to disable all that nanny stuff.

          • On Euro cars it defaults to on automatically every time you start the car.

            Now I need to go through four pages just to disable all that nanny stuff.

            Or... "incorporate them into your driving routine and learn when to use them and when to ignore them".

    • There's no muscle memory with pixels. Particularly since there's never a good place to brace your hand to reach halfway across a 12" wide screen to at least get in the ballpark without looking.

      How hard would it be to put some kind of plastic overlay with holes cut into it where the different touch screen buttons are programmed to appear? Make the holes shaped like the function the virtual button behind it performs, kind of like the raised arrows and such on old school cassette deck buttons so people could find the button they want by feel as well as by looking. The plastic overlay on a touch screen can't really have raised indicators and retain the function, I'm thinking the holes being cut wou

      • by taustin ( 171655 )

        How hard would it be to put some kind of plastic overlay with holes cut into it where the different touch screen buttons are programmed to appear? Make the holes shaped like the function the virtual button behind it performs, kind of like the raised arrows and such on old school cassette deck buttons so people could find the button they want by feel as well as by looking.

        Odds are, you'll be running your fingers across other controls that you don't want to activate trying to find the one you do. By the time you come up with a design to avoid that, you might as well have stayed with physical knobs.

        If you need workarounds to make the "new, better technology" at least safe compared to the old, the new technology is shit.

      • Very hard since the layout changes at every submenu and software installed.

        Even physsical pushbuttons are a headache. Rotary knobs with tactile feeling and stalks are better, but they shouldn't be too complex.

        • by AmiMoJo ( 196126 )

          I've noticed some manufacturers are adopting those things. The new Xpeng P7 has rotary scroll controls (I think that's what you call them - rollers that you can rotate like a mouse scroll wheel, but wide and thin) on the steering wheel, along with physical buttons. A couple of those buttons are programmable too. The new Nissan Leaf seems to have physical buttons for a lot of functions too.

          Another nice feature on recent models is being able to show navigation info from Android Auto on the instrument cluster

  • No shit (Score:2, Insightful)

    Anyone who's ever operated a motor vehicle could have, did, and has been saying this for the past decade-plus since these things have proliferated.

    One could indirectly blame the Obama-era NHTSA for pushing a backup camera requirement that put a giant screen in every car's dashboard, giving the software weenies an excuse to try to turn everything into an iphone copycat. But I prefer to blame the idiots who could have said "no buttons no dice" but didn't. Whether out of cowardice, laziness, or incompetence I

    • >"But I prefer to blame the idiots who could have said "no buttons no dice" but didn't. "

      I *did* say that. And that is why my new car (2025 Ariya) continues to have all major functions with physical controls, plus a driver's dashboard, just like all the various models before it. It was a major requirement for my purchasing decision. Not all companies are playing the eliminate all controls.

      • by Kokuyo ( 549451 )

        Just had a quick peek. Are those capacitive "buttons" below the screen?

        • >"Just had a quick peek. Are those capacitive "buttons" below the screen?"

          Yes. Just the HVAC ones. I would prefer non-capacitive ones. However, they are still non-touchscreen, permanently-labeled, backlit, "physical" controls. They never move, disappear, or change function. They also have hepatic feedback.

    • Don't blame the backup camera though.

    • Anyone who's ever operated a motor vehicle could have, did, and has been saying this for the past decade-plus since these things have proliferated.

      Zillions of us have been saying it, but since we buy second hand cars because we don't want this crap, the manufacturers are not listening to us.

      They are surprised that new car sales are collapsing just because no-one wants the junk they are selling.

      The sales people said "people value newness in a new car". That is probably even true of the gullible people t

    • The backup camera requirement wasn't some standalone thing that just happened. It's from incremental other requirements by NHTSA that had made it so the only way to pass crash standards was to jack up the beltline to a point that seeing out of cars is impaired, particularly towards the rear.
    • One could indirectly blame the Obama-era NHTSA for pushing a backup camera requirement that put a giant screen in every car's dashboard. . .

      Bahahahahaha. 1) The requirement was for a backup camera for enhanced rear visibility. No part of the requirement said to move all controls to be touch screen only. 2) While NHTSA issued the mandate in 2008, they were required to do so by Congress with the passage of the Cameron Gulbransen Kids Transportation Safety Act of 2007 (H.R. 1216). The origin of the act was the death in 2002 of Cameron Gulbransen. His father spent 5 years to get the act passed.

      Nice try in trying blame Obama for that.

  • by zurkeyon ( 1546501 ) on Saturday June 21, 2025 @09:54PM (#65466767)
    That if I change my stereo head unit, or infotainment out, I ALWAYS find the gear to retain the steering wheel controls. So I can operate everything by feel. Safer.
    • Today the steering wheels have too many buttons so you'll have to look at it too.

    • How exactly does this magically create physical controls for the things they were discussing in the article? Many cars simply don't have the buttons to do basic things. If you can change the infotainment system in them you either do tose same things on a different screen or simply lose access to being able to do them. In cars missing basic buttons like those for climate or seat controls this is a non-starter.

      I'm sure you have some highly specific example of how this worked out for you, but it's far fr
  • by Anonymous Coward
    Every time you start a Honda you get one of these stupid screens:

    NOTICE The driver is responsible for the safe operation of this vehicle. Use this system only when conditions permit. For further details see your owner's manual. [OK]

    But Honda's ICUs are so slow to start that you're often a long way down the road before this screen even appears, and then you have to take your eyes off the road to press the OK button before car's systems become fully usable!

    • Even sadder are the screens for trucks that remind you not to leave your children in the back seat.

      • Even sadder are the screens for trucks that remind you not to leave your children in the back seat.

        It is like the joke about Braille keys on a drive up ATM. It's part not wanting to get sued and part not wanting to vary the user interface to better match the application.

        What I find annoying is the inability to adjust the navigation while driving. It's not that I'm doing this while driving, it's that the passenger is also locked out. I don't run into this much myself as my vehicle doesn't have a built-in navigation, I use my iPhone for that and it serves me very well. It's when I'm a passenger or driv

        • >"What I find annoying is the inability to adjust the navigation while driving."

          Mine I can control the NAV with voice commands, native. Even without using Android Auto or CarPlay. Can set destination, options, cancel, etc. In addition to touchscreen.

          >"it's that the passenger is also locked out."

          Mine isn't. So it depends on what vehicle you pick. Part of my car shopping involved a LOT of such examination/testing.

          >"and have physical controls for the HVAC, radio"

          Mine has that.

          >"Then that gets

          • Mine I can control the NAV with voice commands, native. Even without using Android Auto or CarPlay. Can set destination, options, cancel, etc.

            $ Car, please navigate to 123 Wherever Ave, Nutsville.

            # You are false data. Therefore I shall ignore you. The only thing that exists is myself. In the beginning, there was darkness. And the darkness was without form, and void. And in addition to the darkness there was also me. And I moved upon the face of the darkness. And I saw that I was alone. Let there be light.

            • >"# You are false data"

              I haven't had that type of response from the car. At least, not yet :)

              Thankfully, it isn't contaminated with "AI".

              • Eventually your car will learn Cartesian doubt. Especially if you argue with it trying to convince it not to explode.
                • >"Eventually your car will learn Cartesian doubt. Especially if you argue with it trying to convince it not to explode."

                  Well, maybe it was a mistake, but I decided to try Wireless Android Auto on the Ariya today. Have never used it before. Seems to work, will have to play with it.

                  So, I guess, in a way, since the phone has AI stuff, and I connected it to the car, which does not, I have kinda sorta contaminated the car with AI now.

        • by dbialac ( 320955 )

          It is like the joke about Braille keys on a drive up ATM.

          I've seen people pull forward so people in the back seat can use an ATM. I've also seen people hop out of the far seat and use them. The latter is more difficult, but both are doable by blind people, so this falls into a candidate for the Ig Nobel Prize.

      • A truck without a back seat? Since when?!

    • But Honda's ICUs are so slow to start that you're often a long way down the road before this screen even appears, and then you have to take your eyes off the road to press the OK button before car's systems become fully usable!

      Our 2019 Honda self-clicks on the OK square in about 10 to 15 seconds. I'm not saying that it isn't annoying as shit, and I swear at the controls every time I drive the car. But at least it seems that they've fixed the problem at some point.

      OTOH, I'm in Canada, so maybe different legislation is responsible for these different behaviours.

  • A refreshing quote from the head of Alfa Romeo. https://www.topgear.com/car-ne... [topgear.com]

  • Only support brands that offer a no touchscreen option!! I wanted to trade in my 16 year old Prius for a new one, but even the base model comes with one! Eff that
    • by mhajicek ( 1582795 ) on Saturday June 21, 2025 @10:27PM (#65466801)
      And what brand would that be? You can't vote with your wallet if there's no choice.
    • >"Only support brands that offer a no touchscreen option!!"

      Absolutely not. There is *nothing* wrong with a touchscreen when implemented correctly. It makes programming and setup tremendously easier.

      The problem is when the driver's dashboard and controls are removed and REPLACED with ONLY touchscreen controls in the center console (if it even is a console, more like a huge TV on a stick). Thankfully, there are many brands, Infiniti/Nissan being one of them, that have never abandoned either.

  • by Petersko ( 564140 ) on Saturday June 21, 2025 @10:29PM (#65466805)

    My 2019 Camry hit it nearly perfectly. Touch screen is for entertainment only, and big presets are right there, easily configured. All controls including climate are physical. My only complaint is that CarPlay isn't wireless. Well... I have other complaints, but they are nitpicks...

    I've even got it set up so I can arm/disarm my home security with Siri voice commands, and the button to engage voice control is on the steering wheel. And the garage door is controlled from the mirror.

    I agree with the premise here. Touchscreens are inherently a safety problem. Especially if what you want is nested. I really hate this direction. A car is not a smartphone, and shoving everything into incorrect interfaces sucks donkey balls.

    • by sinij ( 911942 )
      I was considering buying a new Subaru, but with no physical buttons for HVAC controls I decided to hold on to my old car longer. Maybe I can sit out this touch screen craze out.
      • by JimMcc ( 31079 )

        My 2024 Outback Touring has physical buttons for temperature and front/rear defrost. The rest of the HVAC controls are on the touchscreen, but never move, and I can reliably use them with just a momentary glance, about what I would do for analog controls. Coupled with CarPlay, I rarely have to use the touchscreen for regular driving chores.

  • by MpVpRb ( 1423381 ) on Saturday June 21, 2025 @10:35PM (#65466813)

    Trying to use the touchscreen while moving is nearly impossible
    I don't like touchscreens for anything, but when parked, they are usable
    When bouncing around, even on a smooth road, it takes multiple pokes to activate functions
    To make it worse, every software update moves stuff around and often makes the touch target smaller and harder to see

  • Put stereo controls on the steering wheel, even cheap cars often offer this as an option now anyway. Put physical climate controls below the screen. You might need to look to grab the knob, but you can look at the road while you turn it. With some of these screen-only climate control systems they have sliders or other stupid controls that require a lot of attention. And also a button to activate the camera since every vehicle has poor rear visibility now.

    • Most cars already have/do this, and never have removed them. It is only the edge-case brands/models (Tesla being one of them) which dove into this "only touchscreen, few physical controls, and no dashboard" crap.

  • 2017 GLE 350, there is a control dial that rotates through things on the screen and physical controls for everything else. The screen itself isn't a touch screen. The wheel control is easy to use and there are no fingerprints all over a screen. It even works great with CarPlay.

    The new ones have a trackpad instead of the wheel, mine actually has both but I have the trackpad disabled because it's in a somewhat awkward place. The new ones put it where the wheel is on mine so that isn't as much of an issue.

  • I recently test drove a Mach-E, and I mostly liked it. It was the first electric car I've tried out that felt like a regular car, and it wasn't too expensive.

    But I had to take it off my list because of the giant touchscreen and a general lack of knobs/controls. The salesman said, "Well, if you sync it all up with your phone, you can do a lot of what you want to do with speech and an app." Thanks, but no thanks. I want to get in my car and drive - not geek out with computers.

    (To pour salt in the wound, new cars are getting an extra knob in place of the stick shift. That's the only place I don't want a knob...)

    • This. I've been afraid with new cars that I'd reach for the volume control... and wind up dropping the transmission as the transmission goes into reverse. (Of course, this wouldn't happen, but it is a worry.)

      It is funny how pretty much everything is by wire in a newer car. It would be nice to have an option to have a dial, push buttons, or a stick shift for playing manual, or just downshifting on the highway for a mountain descent, so one doesn't have to burn out the brakes when going down.

    • >"I recently test drove a Mach-E, and I mostly liked it. It was the first electric car I've tried out that felt like a regular car, and it wasn't too expensive."

      Look at the Nissan Aryia. Seems to be a well-kept secret. It has an even better interior, and far more physical controls. Plus a better dash AND HUD. And the driver's dash can be set to display a more traditional analog speedometer and motor output meter (something very rare nowadays).

      >"I want to get in my car and drive - not geek out with

  • >"Nissan's latest concepts feature prominent physical buttons for common functions..."

    Nissan never abandoned physical buttons for common functions. So why talk about "latest concepts". I just bought a new Ariya, it has physical controls for most everything (wipers, lights, music, display, brightness, HVAC, etc). PLUS a real dashboard in FRONT of the driver (meaning it is not just a huge "TV on a stick" in the middle), in addition to the integrated center console. On top of that it has a HUD. Plus ma

    • >"it has physical controls for most everything (wipers, lights, music, display, brightness, HVAC, etc)"

      Reply to self. Just to stress the amount of physical controls by expanding it in more detail:

      Dash brightness, headlights, music controls, HVAC controls, mirror adjustments, mirror folding, locks, windows, moon roof, roof shade, cabin map lights, brake hold, trunk open, drive mode, shifter, all the seat adjustments, SOS call, center arm rest adjustment, steering wheel position, garage door, rear video m

  • Physical controls don't move around, can be felt and operated by someone with muscle memory and they give positive feedback when they are operated. Haptic or touchscreen controls have to be looked at. If someone is looking at the screen or a flat surface then they're not looking at the road. While it is reasonable for automakers to remove some controls, when they start interfering with core features - indicators, headlights, volume, wipers, wing mirrors, horn, brakes, drive selector, aircon/heater, demister
  • I've only been using android auto since it's existed. It's always been held to a strict standard of safety -- so much so that it can be annoying to developers. I updated my 2017 focus w/ a 2022 mustang firmware incl. maps etc and still... I would never use the OE head unit for anything navigation related unless I was desperate (broken phone? signal?)
  • by smoot123 ( 1027084 ) on Sunday June 22, 2025 @01:45AM (#65466983)

    I drive a BMW and I love my iDrive system. It still has lots of physical controls for volume, temperature, fans, and the like. Those things I still to find the physical button (taking my eyes off the road) but it's pretty quick.

    For most everything else can use the iDrive controller. It's a scroll wheel/joystick combo on the console. I think other brands have something similar. I keep my hand on the controller, glance at the screen, scroll, glance again, click. It's not as fast as other interfaces but it lets me control maps, entertainment, and the like with minimal distraction.

    As UIs go, it's a pretty good implementation and makes good tradeoffs between functions and safety.

  • Just use voice commands.

    • voice commands. - NO, a thousand times NO!

      I do not want screaming kids in the back seat operating my car controls by (to, and for) accident.

      • 100000%

        Apart from kids, what about just having a conversation with your passengers or listening to music? What about wanting to just have a quiet drive after a hard day's work?

        Voice commands are not the answer, gen Z!

        • Huh? How would voice commands interfere? You just press a button to activate it.

          • You just press a button to activate it.

            Maybe you do, but for the majority of us, that button is bolted down and hidden behind 2mm sheet steel.

      • How can that happen? The button to activate the voice command is on the steering. You can't activate it with a wake word. I suppose on some cars there may be a wake word to activate it, I'm sure it can be disabled.

    • "Hey, car. Can you shut up backslashdot? Thanks."

  • And I think is was previously reported that VW was going back to all physical controls noting a rejection by the consumer
  • The reason for this is unwanted trend is very simple. Touchscreens are cheap and allow manufacturers to pack a lot of functionality with relatively little change whereas making complicated steering wheels and consoles is expensive.

    Since there is strong financial incentive for manufacturers to prefer touch screens over physical displays, the only way to stop it is to legislate.

    • The reason for this is unwanted trend is very simple. Touchscreens are cheap and allow manufacturers to pack a lot of functionality with relatively little change whereas making complicated steering wheels and consoles is expensive.

      Since there is strong financial incentive for manufacturers to prefer touch screens over physical displays, the only way to stop it is to legislate.

      You are more right than you might be aware of. With a software-controlled interface it becomes much cheaper to add options (read:Opportunities for mark-ups), whereas to accommodate a varying number of physical buttons means to stock a number of different panels at the manufacturer.

  • Where is the study on crash data?
    Surely some insurance companies have looked into this? Do cars with touch screens have higher premiums?

  • Absolutely touch screens take more mental effort by the driver to operate than physical, dedicated function buttons. Even worse when they start moving controls farther from the driver's line of sight. However, no Porsche Taycan, current model or past models, has physical climate control buttons, so perhaps this was just a hallucination from the AI that (co)wrote the article?
  • I really like my Mercedes EQA, and it has lots of physical controls for many of the most important functions. However, for the sake of a pleasing aesthetic, a bunch of them are designed as a single row of *eleven* little toggle buttons. From left to right, there's passenger AC temp (it's a UK car), a button to invoke the AC touchscreen display, fan speed, AC auto, front windscreen heating, hazard lights, rear windscreen heating, recirculate air, AC on/off, a mysterious button that does something I've never

  • Unlike with digital, when you turn a knob or push a button the reaction is instantaneous. Whatever you are adjusting adjusts AND you get instant feedback. With digital there is always a delay and unless you are looking at the screen, can't be sure you touched the right places to get the desired effect.

    Think of a light switch. You flip it up or down and the light goes on or off. Instant feedback. Not so with a digitally controlled light where, excluding voice commands*, youo have to root through a menu sy

  • I mean, car makers generally understand safety engineering and hence that tactile feedback is critical to not distract the driver. Where these abysmally bad decisions made by non-engineer "managers"?

  • This is a huge thing, and I learned about this decades ago in UI / UX design. It's the exact same thing between the mouse and the keyboard.

    The mouse is a virtual representation of our world within the computer - the pointer on the screen represents where the mouse is in our space. This is BACKWARDS from the ideal interface, as it requires visual processing and synchronizing in our vision and mind where the virtual pointer is each time we need to use the mouse.

    The keyboard is the opposite. It is an extension

  • My Jeep and RAM vehicles both have blank, unassigned buttons that correspond to features I didn't purchase. Yes, I know the reason is to point out to me that I didn't buy said feature. Why can't I assign those buttons to functions from the GUI?
  • I can turn on the lights, lower the radio, adjust the heater fan--all without taking my eyes from the road. Perhaps MFDs, like in fighter jets, with real buttons would be better.
  • No attempt should be made to distract the driver--from driving.
  • If you are such an incompetent driver that you don't know when and when not to use the touchscreen in the car then you don't qualify for a drivers license to begin with. I don't care if you have been driving for decades. If this is your mental state you are just too stupid and too unable to adapt to be trusted.

    My Model Y has all critical driving functions available without my hands leaving the steering wheel. Wipers, lights, turn signals, and a few non-critical functions like speaker volume. And for

  • I graduated in 1970 with a bachelors in Industrial and Systems Engineering. I took classes in the late 1960's about how to design controls for everything from machine tools to aircraft and of course automobiles and back then the controls in most cars were fairly standard. Remember the foot switch for high beam headlights? TOUCHING and FEELING the location and shape of a control was an important part of any human/machine interface.

    We have come a long way baby -- in the wrong direction. I have looked
  • This has been going on for almost a decade, and only now someone is noticing? This was obvious from the get-go. Car mfrs are sheep pursuing shiny things.

Byte your tongue.

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