OWNER ANSWER
How to reset a BYD SEAL tyre-pressure warning safely
For a low-pressure warning on your SEAL, measure all four tyres cold and correct them to the pressure label for your car and load. Then recheck the dashboard after it updates; a reset cannot fix a leaking tyre. The display controls below are from the original SEAL March 2025 RHD handbook; match later facelift controls to its own handbook.
- Park and inspect the tyres for a puncture, cut, bulge, damaged valve or obvious deflation. Safety note: a flat, damaged or fast-leaking tyre can affect handling and suffer further damage if driven, so stop smoothly and arrange tyre assistance or recovery; avoid sharp steering or abrupt braking. For a tyre-temperature alarm, stop and let the tyre cool before continuing.
- Find the cold-pressure label inside the driver's door frame.
- Measure all four tyres with a reliable gauge after the car has stood for at least three hours.
- Adjust the pressures to the specified figures for your car and load.
- On the original SEAL, use the steering-wheel instrument-menu button, move left or right to the driving-information bar, then use the scroll control to select the tyre-pressure display. Check it after its next update; if you make a normal journey with correctly inflated, undamaged tyres, check again afterwards.
What to expect
The physical cold pressures match the car’s label, remain stable and the pressure warning clears after the display updates. Correct gauge readings with a missing or implausible dashboard value need the sensor checks below.
If that did not work
- One tyre loses pressure again: ask a tyre fitter to check for a puncture, valve leak or an airtightness problem.
- Pressures are correct but the light flashes then stays on with “No Signal”, “Please check TPMS”, or a missing/implausible reading: ask a BYD dealer or service provider to check the sensor and monitoring system.
- The warning started after tyre, wheel or sensor work: tell the fitter what changed and ask BYD service to check the matching for the affected wheel positions.
What to note down for support: the affected wheel, measured and displayed pressures, exact message, whether the light flashed first and any recent tyre or wheel work. The display may refresh during normal driving after pressure correction; there is no need to drive a special speed or distance or factory-reset the car.
What the warning means
Low pressure, high temperature, rapid leakage and a TPMS fault are different alerts. Read the complete message and affected wheel. “No Signal” or “Please check TPMS” needs a monitoring-system check if it persists.
The dashboard updates at intervals, so an old or missing reading can lag a sudden loss. Use a gauge to check the actual pressure.
Related links
Source: BYD source (BYD UK) · SEAL handbook (BYD UK) — original SEAL March 2025 RHD EN-250305; later facelift controls separately matched; PDF135–136. Checked 22 October 2026.
Original SEAL display and alert checks: RHD EN-250305 handbook, PDF 135–136 (BYD UK), checked 13 November 2026. The handbook distinguishes pressure, temperature and monitoring-system alerts.