Inflate all four tires to the recommended cold pressures shown on the driver’s door jamb placard, then drive to allow the tire-pressure monitoring system (TPMS) to relearn. If your Odyssey has a TPMS reset button, you can perform a manual reset after correcting pressures. If the light remains, inspect tires for leaks or sensor faults and consider professional service.
Understanding TPMS and why resetting matters
The Tire Pressure Monitoring System alerts you when a tire is underinflated or when a sensor has a fault. After you correct tire pressure, the system can relearn automatically or require a manual reset, depending on the vehicle’s configuration and any recent sensor work. Proper inflation is essential before attempting a reset.
Reset methods
Choose the approach that matches your vehicle’s configuration. Both methods assume the tires are inflated to the door placard pressure with cold tires.
Automatic relearn by driving
Use this method if your Odyssey does not require a manual reset or you prefer the vehicle to relearn on its own after pressure corrections.
- Check that all four tires are inflated to the recommended cold pressures listed on the door placard.
- Ensure tires are cool before verifying pressures, and adjust if necessary.
- Drive at a steady speed on a highway or open road at approximately 50 mph (80 km/h) or faster for about 10 minutes to trigger the relearn process.
- Observe the TPMS indicator; it should turn off after the system completes the relearn. If it stays on, proceed to the manual reset option or troubleshooting.
Following these steps typically completes the relearn within 10–15 minutes of highway driving after inflations are corrected. If the light does not turn off, continue with the manual reset or seek service.
Manual reset using the TPMS button (if equipped)
Some 2018 Odyssey trims include a dedicated TPMS reset button. If you locate it (commonly near the left side of the dash, under the steering column or inside the glove box), perform the reset after confirming correct pressures.
- Inflate all four tires to the recommended cold pressures.
- Turn the ignition to ON with the engine OFF.
- Press and hold the TPMS reset button until the TPMS indicator light blinks twice, then release.
- Drive at speeds above 50 mph (80 km/h) for about 10 minutes to complete the relearn.
If your vehicle does not have a TPMS reset button or you can’t locate it, rely on the automatic relearn method and/or have the system checked by a dealer or tire shop.
Troubleshooting if the light stays on
If the TPMS warning remains after following these steps, there may be a tire leak, a damaged sensor, or another fault in the system. Inspect each tire for punctures or leaks, check valve stems, and consider sensor battery or sensor failure. If no obvious issue is found, a diagnostic check at a Honda dealer or tire shop can identify the problem and advise on replacement or repair.
Summary
Resetting the TPMS on a 2018 Honda Odyssey starts with inflating tires to the door placard specification and then allowing the system to relearn. Use automatic relearn by driving in most cases; if your model has a TPMS reset button, a manual reset can speed up the process. If the light persists, seek professional diagnostics to rule out leaks or sensor faults.