IONIQ 5 Companion

A real-time diagnostics app for the Hyundai IONIQ family. Connect an ELM327-compatible Bluetooth OBD-II adapter to monitor your battery, charging sessions, temperatures, and more — right from your iPhone or CarPlay.

Features

CarPlay

  • Driving tab — Two rows of live chips: pack state of charge, pack power, odometer, 12V state, cell delta, motor RPM, headlights — and tire pressures, climate, preconditioning, battery heater, battery temperature, regen power, brake light
  • Tire-pressure tile — Pressure and temperature
  • 12V chip — State of charge, voltage, and current
  • Compass — Optionally swap the odometer chip for a live compass; tap it for a full-screen heading
  • Status tab — When the car is parked: connection state, ECU scan status, polling headroom, and ICCU details
  • Dynamic Charging tab — Appears during EVSE sessions, with a session timer to keep track of your charge time at a quick glance
  • Dynamic EVSE tab — Appears during charging with session details — see what capabilities the EVSE has communicated to your vehicle

Charging telemetry

  • Live AC and DC charging detection
  • EVSE max voltage / current / power — J1772 + CCS
  • Control Pilot duty cycle — The EVSE’s advertised max-current capability
  • ICCU input voltage and AC current

Preconditioning readiness ETA

  • Live “Time to 70°F / 21°C” battery-temperature ETA — When your pack will be ready for optimal DC fast charging
  • Visible on the Dashboard and as a CarPlay chip during preconditioning — Now also visible on the Driving tab for the drive to the station

Live Dashboard

  • State of charge, available energy, voltage, current
  • Battery cell min/max temperature
  • Battery cell voltages
  • Module temperature grid — Per-sensor pack temperatures with min/avg/max/delta
  • Battery temperature charts — Time series history of BMS max/min, heater, and coolant inlet temperatures
  • Battery heater status during preconditioning
  • Battery Odometer — Lifetime energy charged vs. discharged with round-trip efficiency percentage
  • Battery Health — BMS-reported State of Health with explanatory info
  • Tire pressures and temperatures
  • Motor RPM, gear position, ignition state
  • Regenerative braking dial — Live regen power against the available ceiling and the pack’s peak power
  • 12V auxiliary battery — State of charge, voltage, current, temperature, plus DC-DC converter telemetry
  • Outside and cabin temperature, relative humidity
  • Indicators for headlights (low and high beams) and brake lights
  • Isolation resistance and polling headroom — With explanatory info
  • ECU scan status — See which of your vehicle’s modules are responding
  • ICCU details share card — VIN-redacted share sheet for easy sharing

History and iCloud

  • Charging sessions — Every charge recorded automatically: peak power, energy added, duration, EVSE max voltage / current / power, and a full set of charts
  • Driving sessions — Distance, max and average speed, energy used, and net efficiency, with speed, current, and state-of-charge charts
  • Signal history — Long-term time-series for every recorded signal, with tap-through charts spanning your whole recording history
  • Session photos — Attach a photo to any session
  • Share a session — Export any session as an image, charts and all
  • iCloud sync — Sessions, signals, and photos sync across your iPhone, iPad, and other Apple devices

Inspect

  • J1979 OBD-II Scanner — Standard mode 01-09 read-out for adapter compatibility checking
  • DTC reassurance — Known-benign permanent codes (e.g. P0C17) come with a contextual explanation rather than an alarm

Advanced Tools

Powerful tools to help enthusiasts learn more about their vehicles, with result sharing built in.

  • DID Range Scan — Probe a single ECU across an address range to find which DIDs respond
  • ECU Finder — A full scan to find all the ECUs your vehicle exposes
  • Curated DID List — An in-depth scan of a single ECU across all 65535 addresses, with .iqlist sharing between testers
  • ABC test — Use the curated list to hunt for interesting new signals
  • Adapter Quiet Check — Detect foreign-app interference on the shared BLE adapter
  • Full diagnostic recording — Capture sessions for later analysis

Settings and customization

  • Units your way — Independent preferences for temperature, distance, speed, pressure, power, and efficiency
  • Appearance — Auto, Light, or Dark
  • Reorder the Dashboard — Drag sections into the order you want, or hide the ones you don’t use
  • Auto-Connect — Reconnect to your adapter automatically on launch and after drops
  • Keep Screen Awake — Keep recording without the screen dimming or locking
  • Quick Look for .iqlist files — Preview a shared curated DID list before importing it

Languages and notifications

  • Multi-language support — Deutsch, English, Español, Français, Italiano, Nederlands, Svenska, with an in-app language picker
  • Unplug reminder — Notification when the car turns off reminding you to unplug the adapter
  • OBD-II adapter compatibility — Works with inexpensive ELM327-compatible Bluetooth LE adapters

Supported vehicles

The app ships per-vehicle registries with full or partial coverage:

Verfified Full Support

  • IONIQ 5 — model years 2022–2026
  • IONIQ 5 N — model year 2025
  • IONIQ 6 — model years 2023–2025
  • IONIQ 9 — model year 2026
  • Kia EV6 - model years 2021-2025

Nearing full support

  • Genesis GV60 - model years 2021-2025
  • Kia EV9 - model years 2024-2026

Support

If you have a question, found a bug, or want to request a feature, please open an issue on GitHub.

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