SEAL / Maintenance

BYD SEAL low tyre pressure warning but gauge looks normal

A warning that disagrees with your first gauge reading is still unresolved. Check the measured value, units and warning type before deciding the sensor needs a reset.

3 min readReviewed 27 October 2026

2026BYD SEAL export controlsEurope / right-hand drive

CHECK YOUR CARBYD SEAL · 2026 model manual · Europe English RHD edition 20260115 · fitted equipment and software dependent

Applies to the official SEAL 2026, English RHD, 20260115 handbook. Chinese domestic SEAL EV (海豹) reports supplied the question; they do not verify an export-car defect, shared firmware or a repair. Match your car's handbook before using a control.

THE QUICK ANSWER

Stop safely, measure all tyres cold against the driver-door label and note the exact dashboard message. A flashing-then-steady warning with “No Signal” or “Please check TPMS” needs a different assessment from low pressure.

China-market owner report

In a discussion dated 2023-10-07, the linked China-market report raised this issue: A SEAL owner asked about a low-pressure warning despite believing the measured pressure was normal. Generic replies are not verified procedures. This is an individual account, not a confirmed diagnosis or failure-rate finding. The steps below use the export handbook.

Checks to make while safely parked

1Identify the warningWhile safely parked, note which tyre is highlighted and whether the display reports pressure, high temperature or a monitoring fault. Photograph the complete message with units.
2Check pressure and conditionMeasure every tyre with a reliable gauge under cold conditions. Compare with the label and inspect for punctures, sidewall damage or a slow loss over time.
3Correct a genuine pressure problemInflate to the correct cold value and arrange puncture attention when necessary. Do not erase a warning to avoid repairing a leaking or damaged tyre.
4Ask for a monitoring checkIf pressure is correct but a signal or system warning persists, contact BYD with the readings and any recent tyre-replacement history. The handbook directs persistent TPMS faults to service.

Tick steps as you go. Your progress stays in this tab.

Check the result and know when to stop

An owner saying a gauge is normal does not verify its accuracy, the tyre temperature or the target they used. The forum replies suggest generic resets and sensor repairs; this guide deliberately follows the export manual’s fault distinction and does not prescribe an undocumented reset menu.

Common questions

Is every illuminated tyre symbol caused by low pressure?+

No. The handbook also describes temperature and system faults. Read the accompanying message.

Can I ignore it if the tyres look inflated?+

No. Appearance cannot replace pressure measurement and condition checks.

SOURCES & SCOPE

Where this guide comes from

Operating steps are checked against manufacturer documentation; Chinese owner discussions are labelled as anecdotal reports. They identify questions, not the prevalence or cause of a fault. Reviewed on 27 October 2026. This is a source-based guide, not a claim of hands-on vehicle testing.

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BYD SEAL low tyre pressure warning but gauge looks normal

China-market owner report

Checks to make while safely parked

Check the result and know when to stop

Common questions

Where this guide comes from

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