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Home/Honda/HR-V/Mk2 (RU) 2015-2022/Open the Hidden Diagnostic Menu

Open the Hidden Diagnostic Menu

These instructions apply to the Honda HR-V Mk2 (RU) 2015-2022. For other models, please choose your vehicle here.

Last updated: June 12, 2026

The Honda HR-V (Mk2/RU, 2015–2022) — the Vezel in some markets — shares the GK-platform cluster with the Jazz and carries the same gauge self-diagnostic, separate from the climate self-test. Hold the trip/reset button, work the headlights as the ignition switches on, and the cluster beeps, sweeps the needles and flashes every LCD segment and warning lamp. It is Honda’s own factory check, no scan tool required. Here is how to open it on the Mk2 HR-V.

What the Cluster Self-Test Shows

The HR-V cluster combines the speedometer, tachometer and fuel gauge with a digital odometer/trip and temperature LCD. The self-diagnostic drives all of them together: the beeper sounds several times, warning indicators (seat-belt, coolant-temperature, fuel and brake) blink, the odometer/trip and temperature segments flash, and the speedometer, tachometer and fuel-gauge needles sweep minimum-to-maximum and back. It reads nothing from the engine and stores nothing — it is a pure display, lamp and gauge check you can run at will to spot a dead bulb, stuck needle or missing segment.

How to Open the Hidden Diagnostic Menu

  1. Park, transmission in P, engine off.
  2. Press and hold the trip/reset button on the cluster.
  3. Keeping it held, turn the lighting switch ON, then bring the ignition to ON (II) (press START once without the brake on push-button cars). Do not start the engine.
  4. Between roughly two and five seconds, switch the lights OFF, ON, then OFF again, still holding the button.
  5. Within five seconds, release the button, then press and release it three times. The beeper sounds, the needles sweep and the lamps flash — the self-test is running.

How to Read It

  • Listen for the beeps confirming the test has started.
  • The speedometer, tachometer and fuel-gauge needles sweep full travel and return — watch for any that stick or lag.
  • The seat-belt, coolant-temperature, fuel and brake indicators blink — a lamp that never lights is a failed bulb/LED.
  • The odometer/trip and temperature LCD segments flash — check for missing or dim segments.

How to Exit

Turn the ignition switch OFF to leave the test. It also ends automatically once the vehicle moves above about 1.2 mph (2 km/h). Nothing is saved and no settings change, so you can drive away normally afterwards.

Frequently Asked Questions

Is this the same as the climate self-diagnostic?

No. The climate test uses the heater/AC controls and reports HVAC codes. This gauge self-diagnostic uses the trip/reset button and headlights and only checks the gauges, lamps, beeper and LCD.

Does the hybrid HR-V/Vezel behave the same?

The entry sequence and sweep-and-flash routine are the same. On hybrid variants the tachometer position is taken by a charge/assist or power gauge, but the needle sweep, beeps and LCD flash run identically.

It would not start the test — why?

Timing. The light OFF-ON-OFF and the three button presses must each fall inside the five-second windows. Switch everything off, pause, and repeat — it commonly takes two tries.

Will cycling the lights harm anything?

No. A one-off check is harmless to the HR-V’s halogen, projector or LED headlamps. The brief on/off cycling has no lasting effect.

Can the self-test damage the cluster?

No. It is read-only and designed to be run on demand. The beeps, needle sweep and flashing lamps are the test working exactly as intended.

If a warning lamp stays lit after the test instead of just blinking during it, a diagnostic trouble code is stored — decode what it means on autodtcs.com.

Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.

This website is an independent resource and is not affiliated with, endorsed by, or sponsored by Honda. All trademarks and brand names belong to their respective owners.

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