To reset the tire-pressure monitoring system (TPMS) on a 2018 Honda Accord, first ensure all tires are inflated to the manufacturer’s recommended cold pressures, then use the vehicle’s TPMS calibration feature or drive the car to trigger an automatic relearn. This process helps ensure the TPMS displays accurate readings after inflation, rotation, or tire changes.
The 2018 Accord uses a Tire Pressure Monitoring System with sensors in each wheel. When tires are adjusted, replaced, or lose pressure, the system may need recalibration to reflect the new values accurately. Below is a step-by-step guide covering manual calibration, automatic relearn by driving, and common troubleshooting tips.
Prepare the tires: check and inflate to the recommended pressure
Before attempting any TPMS reset, verify that every tire is inflated to the vehicle’s recommended cold pressure. The correct numbers are posted on the doorjamb placard on the driver’s door and can vary by trim or load. Use a reliable tire gauge and recheck after tires have cooled for accurate readings.
- Locate the recommended cold pressures on the doorjamb placard or owner’s manual for all four tires (and note if there is a different value for the spare, if applicable).
- Use a quality tire gauge to measure each tire’s pressure when the tires are cold (before driving or after at least three hours of no driving).
- Inflate each tire to its specified pressure, then recheck all valves to confirm even, accurate readings.
- Rotate tires only after inflating and after confirming the pressures, if your maintenance plan includes rotation. This helps prevent imbalanced wear that could affect TPMS readings.
- Recheck pressures again after a short drive to ensure they remain at the recommended level.
With the tires properly inflated, you’re ready to reset the TPMS either manually through the display or by using the automatic relearn process.
Manual TPMS calibration via the dash/menu
Manual calibration (calibration or relearn) is used when tires have been inflated to spec, after tire service, or following rotation. Use the vehicle’s multi-information display to initiate the relearn process, then drive to complete it.
- Turn the ignition to ON (engine off) and ensure all doors are closed.
- On the instrument cluster or multi-information display, navigate to Settings or Vehicle. The exact path can vary by trim, but look for TPMS Calibration or TPMS Relearn.
- Select Calibrate or Relearn, then confirm your choice.
- Drive at a steady speed, typically around 50 mph (80 km/h) or higher, for about 10 minutes to complete the relearn.
- Watch the TPMS indicator light; it should go off once the relearn is successful. If it remains on, repeat the steps or check tire pressures again to ensure accuracy.
If you have trouble locating the TPMS calibration option or if the light does not behave as described, consult the owner’s manual for the exact menu names and steps for your trim level, or contact a dealer.
Automatic relearn by driving
Many 2018 Accords perform an automatic TPMS relearn after you inflate the tires to the correct pressures. This method requires no separate menu action—just drive the car after inflating to spec and the system will learn the new values over time.
- Inflate all tires to the recommended cold pressures as described above.
- Drive the vehicle at highway speeds (approximately 40–60 mph / 64–97 km/h) for about 10–15 minutes.
- Return to normal driving and monitor the TPMS warning light. It should turn off once the system has recognized the new pressures.
- If the light remains on after a highway drive, consider performing the manual calibration procedure or rechecking tire pressures for accuracy.
Automatic relearn is convenient, but if the TPMS continues to show a fault after following both the manual and automatic methods, there may be a sensor issue, valve stem problem, or a slow leak requiring inspection by a professional.
Troubleshooting and when to seek help
If you consistently see the TPMS warning light even after inflating tires to spec and performing a calibration or automatic relearn, consider these steps:
- Inspect each tire for punctures, slow leaks, or damaged valve stems.
- Check the spare tire if your vehicle uses a monitored system that includes it.
- Note if the light comes on after a tire rotation; a manual relearn may be required following rotation.
- Have the TPMS sensors tested for battery life or corrosion if readings remain inaccurate.
In cases where TPMS components are faulty or leaking cannot be identified visually, schedule service with a Honda dealer or a qualified tire shop to diagnose the sensors and replace any defective units.
Summary
Resetting the TPMS on a 2018 Honda Accord mainly involves inflating all tires to the recommended cold pressures and either performing a manual calibration via the vehicle’s menu or letting the system relearn automatically through a steady drive at highway speeds. If the warning light persists after proper inflation and relearn attempts, professional inspection is advised to rule out sensor or leak issues.