Car touchscreens are cheap, not good

Original Article ↗ Hacker News Discussion ↗

Cost and Manufacturing Incentives

  • Widespread view: large touchscreens are primarily a cost-saving measure, not a user benefit.
  • Backup cameras mandated since 2018 force inclusion of some display; upgrading to a touchscreen is only marginally more expensive than a basic display.
  • Touchscreens replace many physical switches, wiring, tooling, and assembly steps, cutting bill-of-material and production costs, and simplifying trim variations (features toggled in software).
  • Debate over exact profit numbers, but even ~$100 per car in savings is seen as significant against relatively thin net margins.

Safety, Distraction, and Ergonomics

  • Many commenters argue touchscreens are inherently more distracting:
    • Require sustained visual attention, especially with nested menus.
    • Harder to use in a moving, vibrating car with no tactile landmarks or hand rests.
    • Can break or lag as a single point of failure.
  • Counterpoints:
    • Studies cited say physical buttons also pull eyes off the road; pre-phone accident data often blamed radio fiddling.
    • Well-designed UIs with large static targets and persistent climate bars can be as quick or quicker than complex button layouts.
  • General consensus: high-frequency, safety-relevant functions (wipers, defrost, temperature, volume) should have dedicated hardware controls or at least always-visible, large on-screen targets.

Buttons, Knobs, and Rotary Controllers

  • Strong affection for simple, tactile knobs and buttons, especially for HVAC and media. People value “eyes-free” muscle memory and detents/limits.
  • Some praise steering-wheel controls and rotary knobs as a good compromise; others find knob-driven cursors worse than direct touch due to extra cognitive mapping and focus tracking.
  • Physical layouts that are consistent, limited, and non-modal are preferred over dense, mode-dependent button clusters.

Voice Control

  • Voice is proposed as “the future” by some, but majority sentiment is skeptical:
    • Seen as slow, unreliable, and stressful in noisy or urgent situations.
    • Privacy concerns about always-on microphones.
  • More accepted as a third input mode for occasional tasks (e.g., navigation), not as a replacement for core driving controls.

Regulation and Market Pushback

  • Some advocate legal limits: either ban essential controls on touchscreens or require advanced driver assistance if they’re used.
  • European safety ratings reportedly already favor physical buttons for key functions, and this is credited with nudging some manufacturers back toward hardware controls.
  • Others criticize regulation that “locks in” old designs rather than incentivizing better human–machine interfaces.

Software Quality and Monetization

  • High-quality in-car software is widely considered expensive and rare.
  • Third-party systems like CarPlay/Android Auto and a few native systems (notably some EVs) are praised as smooth and usable; many OEM UIs are described as laggy, cluttered, or dangerously confusing.
  • Touchscreen-centric architectures enable software-locked options, subscriptions, telemetry monetization, and eventually in-car advertising, which several commenters see as a major underlying incentive.

Aftermarket, Repair, and Longevity

  • Interest in aftermarket physical-control add-ons for screen-heavy cars, including button bars that integrate with existing buses.
  • Some prefer repairable, modular physical controls; others prefer fewer mechanical parts to break.
  • Concern that as older button-rich cars age out, it will become hard to avoid screen-first interfaces without retrofits.