These instructions apply to the Honda CR-V Mk4 (RM) 2012-2018. For other models, please choose your vehicle here.
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When the tyre-pressure warning light comes on in your Honda CR-V Mk4 (RM, 2012–2018), it usually just means the system — Honda calls it the Deflation Warning System — needs to relearn your current pressures after a check, top-up or wheel change. You reset it through the menu. This guide shows how.
How the CR-V System Works
The Mk4 CR-V uses an indirect system (the Deflation Warning System) that watches the ABS wheel-speed signals rather than using a sensor in each wheel. Because it works from a stored baseline, you must re-initialise it whenever you change the pressures — there is nothing to read, only a reference to store.
When to Reset
- After checking or adjusting the tyre pressures (including seasonal changes).
- After changing one or more wheels or tyres.
- After rotating the wheels front-to-back.
Set Your Pressures First
The reset stores whatever pressures are in the tyres at that moment, so they must be correct first. Set all four (cold) to the figures on the placard on the driver’s door pillar, using the laden column for a full load. Never reset with a tyre already low.
How to Reset (Initialise) the CR-V Deflation Warning System
- Make sure all four tyres are at the correct cold pressure.
- Stop the car, apply the handbrake, and put the gearbox in neutral (manual) or P (automatic).
- Turn the ignition on — do not start the engine.
- On the steering wheel, press and hold the menu button (A) for 3 seconds, then press “SEL/RESET”.
- Select “Deflation Warning System”, then “Initialise”.
- Press “OK” to reset. The new pressures are stored.
The car finishes learning over the first few miles, so the light can take a short drive to confirm.
Light Won’t Go Out? Work Through This
- A tyre is genuinely low: the system is doing its job — find and fix the leak, re-inflate, then re-initialise.
- Initialise not completed: repeat the menu steps and confirm with OK.
- Big front-to-rear split: set them to the placard figures; indirect systems dislike large mismatches.
- Light stays on with correct pressures: a persistent fault may be stored — you can look up what a code means on autodtcs.com.
Frequently Asked Questions
Does the CR-V Mk4 have a sensor in each wheel?
No — it uses the indirect Deflation Warning System based on the ABS wheel-speed sensors, so there is nothing inside the wheel. The reset is done from the menu.
Where do I find the initialise option?
Hold the steering-wheel menu button 3 seconds, press SEL/RESET, then Deflation Warning System → Initialise → OK.
Why does the light return after a few days?
Either a tyre is slowly losing air, or you initialised while a tyre was already low. Re-check all four cold pressures and re-initialise.
Do I need to reset after just topping up the air?
Yes — any pressure change shifts the baseline an indirect system relies on, so re-initialise after any adjustment.
After tyre or seasonal-wheel work it is worth confirming the service reminder is clear — see our Honda CR-V service indicator reset guide.
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.
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