How to Reset Acura TPMS Tire Pressure Warning Light
Most Acura models let you reset the tire pressure monitoring system (TPMS) light by pressing and holding the TPMS button under the dashboard, near the steering column, or inside the glovebox. On newer models (2018 and later), you reset through the multi-information display or touchscreen. Do not reset until all four tires are inflated to the pressure listed on the driver’s door jamb sticker (typically 32–35 psi). If the light stays on after a correct reset, a failing sensor or a slow leak is the usual cause.
Quick Tire-Pressure and Sensor Checklist
Run through these five checks before you touch any reset button. Each is a pass/fail item that saves you from chasing a phantom reset.
| Check | Pass | Fail ⚠️ |
|---|---|---|
| All tires at cold pressure per door jamb sticker (check with a gauge, not the dash readout) | Pressure within spec (±1 psi) | One or more tires 2+ psi low |
| No visible punctures, nails, or sidewall bulges | None found | Any damage found |
| Valve stems look intact (plastic or metal) and don’t leak when wet with soapy water | No bubbles on stem or core | Bubbles appear at stem or core |
| Spare tire (on MDX, RDX with full-size spare) also inflated to spec | Spare at correct pressure | Spare low – it can trigger the light |
| No hissing at valve core when pressing gauge onto stem | Quiet seal | Air escaping at core – tighten core or replace cap |
What to do next:
- If one tire is more than 5 psi low + you found a puncture → inflate and test tomorrow morning. If it dropped again, repair or replace that tire first.
- If all tires are 2–3 psi low evenly → a cold snap or altitude change is likely. Fill them and drive – the light may go out on its own within a few miles without a manual reset.
- If all checks pass but the light is still on → proceed to the reset procedure.
How to Reset the TPMS Light by Model Year
Acura changed reset methods around 2018. The table below helps you identify your car’s method at a glance.
| Model Years | Reset Method | Where to Find It |
|---|---|---|
| 2005–2017 (most) | Physical TPMS button | Under dash left of steering column, inside glovebox, or behind a small cover |
| 2010–2017 (button models) | Hold button until light blinks 3x, then drive >15 mph | Button location varies – check manual |
| 2018+ with multi-information display | Menu: Settings → Vehicle → TPMS Calibration → Initialize | Steering wheel controls |
| 2018+ with touchscreen | Home → Settings → Vehicle → TPMS → Calibrate | Touchscreen infotainment |
| 2016+ with auto-relearn (e.g., 2019 MDX) | Inflate tires + drive a few miles – no button needed | Light goes off automatically |
Models with a Physical TPMS Button (2010–2017 and some older)
1. Turn ignition to ON (engine does not need to run).
2. Press and hold the TPMS button until the tire pressure light blinks three times and then turns off. This usually takes 3–5 seconds.
3. Start the engine and drive above 15 mph for at least 2–3 minutes. The system re-learns sensor positions during that drive.
Troubleshooting: If the light does not blink when you hold the button, you may be pressing the wrong switch. Some Acura models have a “SET” button for cruise control near the TPMS button. Check your owner’s manual for the exact location – often it’s a small button with a tire-cross-section icon.
Newer Models with Multi-Information Display (2018+)
1. Turn ignition to ON without starting the engine.
2. Use the steering wheel < > and OK buttons to navigate:
Settings → Vehicle → TPMS Calibration.
3. Select Initialize or Calibrate and confirm the on-screen prompt.
4. Drive for 10–20 minutes at speeds above 15 mph. The system calibrates automatically during that drive.
On touchscreen models (2020 TLX, 2021 RDX, 2022+ MDX):
Go to Home → Settings → Vehicle → TPMS → Calibrate.
Same driving step after calibration.
Automatic Relearn Models (select 2016+)
Some Acura models (e.g., 2019 MDX, 2020 RDX) do not require a button press or menu reset. After you inflate the tires to spec, the TPMS light turns off on its own after driving a few miles above 15 mph. If the light goes out without you doing anything, your system is working normally – no action needed.
Common Failure Mode: The Light Comes Back After a Perfect Reset
This is the most frequent frustration Acura owners hit. You do a correct reset, drive the car, and within a few miles – or the next morning – the light is back. Tire pressures are fine. Here’s how to detect the root cause early.
Typical symptoms:
- Light stays solid (not flashing) after reset but returns within 2–3 miles.
- Light flashes for 60–90 seconds at startup then stays solid – classic sensor communication failure.
- Only one or two wheel positions show pressure in the display, while others read dashes or “– –“.
Likely causes (in order of frequency):
1. Aftermarket TPMS sensors not correctly programmed – Aftermarket sensors need to be cloned or programmed with your Acura’s OEM sensor IDs. Tire shops sometimes install generic sensors that won’t sync. If you recently had tires replaced or sensors swapped, this is suspect #1.
2. Sensor battery dead – TPMS sensor batteries last 5–7 years. If your Acura is older than that, a dead sensor is the most common cause. You can confirm by having a shop scan each sensor’s voltage (a TPMS scan tool costs them <5 minutes).
3. **Damaged sensor from tire repair or wheel change** – If a tire shop used a bead breaker or tire tool carelessly, the sensor can be cracked or the valve stem broken. Metal valve stems on aftermarket wheels sometimes come loose and leak at the base.
4. **Aftermarket wheels** – Many aftermarket wheels need different TPMS sensors or sensor bands. The original sensors may not fit properly or the band may break, causing the sensor to rattle and lose connection.
5. **Temperature drop** – In winter, a sudden 20–30°F drop can lower tire pressure by 4–5 psi. Even if you filled them last week, the cold may trigger the light. Fill them and drive – the light usually goes out without a manual reset.
**How to check without a tool:**
Look at the tire pressure display in your gauge cluster. If all four pressures read normally (between 30–40 psi) but the light is on, the system has lost sync with a sensor. If one tire reads “–“ or a very low number that doesn’t match the others, that sensor is likely dead or damaged. In that case, a tire shop with a TPMS scan tool is the fastest fix – replacing a single sensor (including labor and re-learn) typically runs $60–$100 per wheel.
Success Check: Confirm the Reset Actually Worked
After completing the reset procedure and driving at least 10 minutes above 15 mph, the TPMS light should be off. To verify:
1. Turn the engine off and wait 30 seconds.
2. Restart the car and drive for another 5–10 minutes above 15 mph.
3. If the light stays off through this second trip, the system is working normally.
If the light comes back the next morning with cold tires, check pressure in each wheel first. If one tire is low again, that wheel has a slow leak – patch or replace the tire. If all tires are at spec but the light is on, you likely have a sensor that’s on its last legs.
When to Stop DIY and Visit a Shop
Do not keep resetting the light if it comes right back. Here is your stop threshold:
- Light flashes for 60 seconds then stays solid – This is a sensor communication failure. No amount of resetting will fix a dead sensor or a lost ID. Go to a shop with a TPMS scan tool.
- Light stays solid after two separate reset attempts with correct pressures – The fault is almost certainly a dead sensor battery, a damaged sensor, or a TPMS module issue. A dealer or independent shop with a Honda/Acura-compatible scan tool can read each sensor’s ID and battery voltage in under five minutes.
- You have aftermarket wheels or recently swapped tires – Take the car back to the tire installer. They may need to reprogram or replace sensors.
When sensors are replaced, always use factory or OE-equivalent parts to avoid compatibility trouble. A few extra dollars now save you the frustration of a false light every cold morning.
Temperature Tips: Why the Light Comes On in Cold Weather
A 10°F drop in ambient temperature reduces tire pressure by about 1 psi. If you filled your tires during a warm spell (say 70°F) and an arctic front drops to 20°F overnight, your pressure can fall by 5 psi – enough to trigger the TPMS warning. This is normal and not a sensor problem.
What to do: Inflate all tires to the door jamb spec on a cold morning (before driving). The light should go out within a few miles of driving. Do not over-inflate to compensate – 35 psi cold is still 35 psi. Over-inflated tires ride harsh and wear the center tread quickly.
Seasonal maintenance: Check your tire pressures monthly during temperature swings, and reset the TPMS after each fill. Most Acura systems will self-correct after a few miles, but a manual reset speeds things up.
Greedy Wheels is the founder and lead editor at Wheels Greed. With over 15 years of hands-on automotive experience — from rebuilding engines in a home garage to managing fleet maintenance for a regional logistics company — he brings real-world mechanical knowledge to every guide.
His work has been featured in automotive forums, owner communities, and dealership training materials. When he’s not researching the latest car owner questions, you’ll find him at a local track day, wrenching on his project car, or testing the newest OBD2 diagnostic tools.
At Wheels Greed, every article is reviewed against manufacturer service manuals, NHTSA bulletins, and verified owner reports. No AI-generated fluff. No guesswork. Just practical answers from someone who has turned the wrench.