Inflate all tires to the recommended cold pressure and drive to reset the tire pressure monitoring system (TPMS). If the warning persists, you may be able to reset TPMS manually through the vehicle’s settings, depending on your trim, or have the sensors inspected by a shop.
Understanding TPMS in the 2018 Civic
TPMS alerts you when tire pressure falls below the vehicle’s recommended level. The system uses sensors in each wheel and is sensitive to temperature changes. A warning can appear after topping off air or during seasonal temperature shifts, and it typically relearns after a period of proper inflation and driving.
Automatic reset: inflate and drive
Most owners can reset the TPMS automatically by ensuring correct inflation and giving the system time to relearn while you drive.
- Check all tires (including the spare if applicable) and ensure they are cold before measuring pressure.
- Inflate each tire to the recommended cold tire pressure printed on the driver’s door jamb placard or in the owner's manual.
- Start the engine and drive on a highway at 50 mph (80 km/h) or faster for about 10 minutes to allow the system to relearn.
- Check whether the TPMS light turns off. If it stays on, continue to the manual reset option or have the tires inspected for leaks or sensor issues.
The automatic reset relies on maintaining correct pressure and stable driving conditions. Cold weather or uneven inflation can delay the relearn process.
Manual reset options (if your trim supports it)
Some 2018 Civic trims offer a manual TPMS reset in the instrument cluster or a dedicated reset option. If your model doesn’t show a reset option, rely on the automatic method and follow up with a tire inspection if needed.
Using the TPMS reset option in the information display
On trims that support it, use the vehicle’s information display to access the tire pressure section and select Reset TPMS. You may need to confirm and then observe the TPMS light blinking as the system relearns.
- Turn the ignition to ON with the engine off.
- Navigate to TPMS or Tire Pressure in the multi-information display using the steering wheel controls.
- Select Reset TPMS and confirm. The light may blink during relearning and should settle once complete.
After a manual reset, drive for several minutes at moderate speeds to finalize the relearning process.
What to do if the light remains after reset attempts
If the TPMS light stays on after inflating and attempting a reset, there may be one of the following issues:
- One or more tires still below the proper pressure due to a slow leak or puncture.
- Damaged or malfunctioning TPMS sensors, especially after sensor replacement or battery depletion.
- A need for sensor reprogramming or replacement by a tire shop or dealer.
In such cases, have a tire professional inspect the tires and TPMS sensors to diagnose and correct the problem.
Summary
Resetting low tire pressure on a 2018 Honda Civic usually involves inflating all tires to the recommended cold pressure and driving to allow the TPMS to relearn automatically. If the warning persists, attempt a manual reset via the instrument cluster or TPMS menu if your trim supports it, and then drive a short distance to complete the relearn. Always verify tire pressures with a reliable gauge and consult your owner's manual or a dealer for sensor-related issues. Regular checks help prevent unnecessary TPMS warnings and protect tire performance.