OWNER ANSWER
Changing tyre-pressure units on BYD DOLPHIN SURF
On the owner-tested DOLPHIN SURF software, no user control was found for switching tyre-pressure readings to PSI. Check your normal display/units settings for an offered option; if none appears, use the displayed unit with the correct vehicle pressure label.
- Park and open the normal vehicle settings.
- Look under display, units or tyre information for a pressure-unit choice. Safety note: A damaged, rapidly deflating or visibly low tyre needs tyre assistance rather than a units adjustment. Use a reliable gauge and the correct cold-pressure target before relying on the dashboard.
- If offered, change only that choice and check the unit on the tyre screen.
- If absent, keep the displayed unit and use a reputable converter when your gauge uses a different one.
What changing units does
Bar, kPa and psi are ways to display the same pressure. Changing the setting does not inflate a tyre or alter its required cold pressure. Use your own vehicle label or official manual rather than a tyre sidewall maximum or another model’s target, and avoid heavy rounding.
Could a later update add the option?
Menus can differ by software, region and model year. Check the official release notes and your installed build; there is no confirmed future feature date here. The tested SURF observation remains relevant to that setup.
If that did not work
For a missing option, give BYD the exact trim and complete software version and ask which units that build supports. For a missing or implausible reading, check actual cold pressure and tyre condition, then use the tyre/TPMS route rather than continuing to change display settings.
Related links
Source: BYD UK official source. Checked 22 October 2026.