New BYD Seal U DM-i Suspension and Tyres System

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BYD Seal U DM-i

The New BYD Seal U DM-i is a 5-seat plug-in hybrid SUV featuring MacPherson front suspension and multi-link rear suspension. The vehicle is equipped with 19-inch bi-colour alloys (235/50 R19) across all trims. Maintaining the chassis and wheels ensures the vehicle handles its 1,940 kg to 2,100 kg kerb weight effectively. This page details the New BYD Seal U DM-i suspension repair and how to manage the tyre pressure system. Check your owner’s manual for correct tyre pressure values. Confirm with an authorised BYD dealer / service centre before modifying the suspension. BYD’s own procedure applies to all chassis repairs, and work must be completed at a qualified workshop.

Contents

  • New BYD Seal U DM-i tyre pressure reset
  • New BYD Seal U DM-i suspension repair
  • Frequently asked questions

New BYD Seal U DM-i tyre pressure reset

The vehicle monitors the air pressure in the 235/50 R19 tyres. If a tyre loses pressure, a warning will appear on the 12.3-inch digital instrument panel. After inflating the tyre or repairing a puncture using the tyre repair kit, the system requires a New BYD Seal U DM-i tyre pressure reset to clear the warning message.

To perform the reset, read the dashboard message and follow the steps outlined in the owner’s manual using the 15.6-inch rotatable touchscreen. Do not make claims about the sensor hardware. If the warning persists after a reset, the tyre pressure monitoring sensor inside the wheel may be faulty. Contact an authorised BYD dealer to inspect the sensor.

New BYD Seal U DM-i suspension repair

The chassis uses a MacPherson front setup and a multi-link rear setup to provide a stable ride. A New BYD Seal U DM-i suspension repair may be necessary if the vehicle exhibits poor handling, excessive bouncing, or knocking noises from the wheel arches. Visual checks can involve looking at the vehicle’s stance on a flat surface, but no mechanical work should be attempted by the owner.

The suspension must handle the weight of the 1.5-litre petrol engine and the traction battery (Blade Battery). Replacing dampers, springs, or control arms requires specialised tools and alignment equipment. Any suspension repair must be carried out by a qualified workshop to preserve the vehicle’s safety and warranty.

Frequently asked questions

How do I complete a New BYD Seal U DM-i tyre pressure reset?

Check your owner’s manual for the exact menu sequence on the rotatable touchscreen to recalibrate the system after inflating the tyres.

What size tyres does the vehicle use?

The standard wheel specification is 19-inch bi-colour alloys with 235/50 R19 tyres for the Boost, Comfort, and Design AWD trims.

Who can perform a New BYD Seal U DM-i suspension repair?

Because the suspension geometry affects the Advanced Parking Assist and other ADAS systems, any repair must be performed by a qualified workshop. BYD’s own procedure applies.

Where can I find the correct tyre pressure values?

The exact tyre pressure values for the front and rear axles are listed in the owner’s manual. Confirm with an authorised BYD dealer / service centre if you are unsure.

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