BYD SEALION 7 Warranty & Documentation

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BYD SEALION 7

Note that trim names, specifications, and prices reflect a compiled dataset (October 2026) and that BYD Automotive Australia may update variants, so every figure must be confirmed with an authorised BYD dealer or the official BYD Australia website. Official service/warranty page: https://bydautomotive.com.au/service-and-warranty

This independent guide outlines the warranty terms, servicing intervals, and documentation requirements for the BYD SEALION 7 pure electric (BEV) SUV in Australia. It details the coverage provided by BYD Automotive Australia, including the traction battery warranty, general vehicle warranty, and specific exclusions. Whether financing through a BYD Sealion 7 novated lease EV salary sacrifice Australia program or purchasing outright, understanding these boundaries is critical. Any warranty claims or specific component inquiries should be directed to an authorised BYD dealer.

Contents

New Vehicle Warranty Coverage

The BYD SEALION 7 is sold with a comprehensive six-year or 150,000 km new vehicle warranty, whichever occurs first. This period commences on the date of first registration, or from the date of delivery in Western Australia. This warranty covers defects in factory materials and workmanship, ensuring the BYD Sealion 7 electric family SUV remains dependable over its early lifecycle. All maintenance must be conducted at an authorised BYD Service Centre to maintain this warranty. If questions arise regarding coverage boundaries, consult an authorised BYD dealer.

Traction Battery and Drive Unit Guarantee

The BYD Sealion 7 82.56 kWh Blade battery capacity and the electric drive unit are backed by an eight-year or 160,000 km warranty. This coverage applies to both the rear permanent magnet synchronous motor found in the Premium trim and the additional front induction motor on the Performance trim. Under the BYD Sealion 7 six-year vehicle warranty and eight-year battery warranty structure, the manufacturer guarantees a minimum of 70% battery capacity retention over the eight-year period.

In the event of an approved claim, BYD Automotive Australia retains the discretion to repair the battery or supply a new, reconditioned, or remanufactured part. The electric drive unit, comprising the drive motor and drive motor controller, shares this eight-year coverage. Proper care of the traction battery is required; the handbook mandates recharging promptly if the state of charge drops to 0%, as damage resulting from a failure to do so will not be covered. To clarify the precise terms of the capacity guarantee, confirm with BYD Automotive Australia.

Specific Component Coverages and Exceptions

Several components on the BYD SEALION 7 carry shorter warranty periods compared to the main vehicle or battery. Genuine spare parts imported by BYD Australia, purchased by owners, and installed by an authorised BYD Retailer receive 12 months of coverage from the date of purchase. Paint application defects, such as overspray, low gloss, runs, or mismatch, are covered for one year.

The 12V lead-acid starting battery is warranted for 12 months or 20,000 km, whichever occurs first. Emergency charging and discharging devices, such as the BYD Sealion 7 11kW AC charging Type 2 cable and the BYD Sealion 7 V2L external power adapter, are covered for 12 months. Furthermore, BYD notes that items subjected to normal wear may attract a charge for repair or replacement. These include brake linings, wiper blades, transmitter batteries, gas struts, and wheel alignment and balancing. Body rattles and squeaks are excluded from warranty claims after 12 months or 20,000 km. Tyres are entirely excluded from the BYD warranty and rely on the respective tyre manufacturer’s guarantees. For a comprehensive list of exceptions, refer to the official owner’s manual.

Servicing Requirements and Scheduled Intervals

To uphold the warranty, owners must adhere to the official maintenance schedule. Services are due at 20,000 km or 12 months, 40,000 km or 24 months, 60,000 km or 36 months, 80,000 km or 48 months, 100,000 km or 60 months, and 120,000 km or 72 months, whichever comes first. Under severe operating conditions, these intervals may need to be shortened.

During these scheduled visits, technicians perform specific tasks recorded in the handbook service record. For the EV series, this includes replacing the brake fluid and replacing the e-motor controller coolant. Routine servicing items and fluids attract a charge. Furthermore, while the vehicle features advanced systems like Frequency Selective Damping (FSD) shock absorbers and a comprehensive suite of driver assistance technologies, any required calibration or repair of these systems must be performed by an authorised technician to ensure ongoing warranty validity.

Owner Responsibilities and Documentation

Maintaining the warranty requires strict adherence to the manufacturer’s servicing schedule and battery care guidelines. Owners must retain the physical logbook, service receipts, the warranty book, and the official owner’s manual. Warranty coverage is transferable to subsequent owners, provided the vehicle has been serviced according to the specified intervals and the required documentation is handed over.

BYD mandates specific battery maintenance to preserve the traction battery guarantee. If the vehicle is unused for more than seven days, the battery should be kept between 40% and 60% state of charge. If unused for more than three months, it must be fully charged and then discharged back to the 40%-60% range every three months. Fully charging at least once a week is recommended, and completing a full charge from below 10% via AC charging every three to six months assists the vehicle’s range estimation systems. Any work on the high-voltage system must be done by an authorised BYD dealer or qualified technician; high-voltage orange cables must not be touched or opened by owners.

Actions That Void Warranty Coverage

Certain actions and modifications will void the warranty of the BYD SEALION 7. Coverage is excluded for vehicles subjected to racing, overloading, or towing beyond specifications. Damage resulting from accidents, floods, or water ingress from deep-water wading is not covered. Odometer tampering immediately voids the warranty.

The warranty is also voided by the use of non-BYD genuine parts that cause damage, as well as any unauthorised modifications. This includes software alterations, ECU tuning, and third-party conversions. The vehicle operates exclusively as a pure electric vehicle on the BYD Sealion 7 e-Platform 3.0 Evo architecture with CTB integration; therefore, gas or LPG conversions are strictly prohibited and will void all powertrain coverage. Any maintenance performed by anyone other than an authorised BYD Service Centre may also compromise the warranty. For any modifications, ensure they are subject to manufacturer specifications.

Frequently Asked Questions

How long is the BYD SEALION 7 battery warranty?

The BYD SEALION 7 traction battery is covered for eight years or 160,000 km, whichever occurs first. This includes a guarantee that the battery will retain at least 70% of its original capacity over that period.

Does the warranty cover the electric drive unit?

Yes, the electric drive unit, which includes the drive motor and drive motor controller, is covered for eight years or 160,000 km. This applies whether reviewing the BYD Sealion 7 Premium RWD or Performance AWD specifications.

Are tyres covered under the BYD warranty?

No, tyres are not covered by the BYD new vehicle warranty. Any claims regarding tyre defects must be directed to the respective tyre manufacturer.

What maintenance records should be kept to maintain the warranty?

Owners should keep the official logbook, the warranty book, and all service receipts. All scheduled maintenance must be completed at an authorised BYD Service Centre to ensure the warranty remains valid.

Can third-party modifications affect the warranty?

Yes, unauthorised modifications, including ECU tuning, software alterations, and third-party conversions, will void the warranty. Always consult an authorised BYD dealer before installing aftermarket accessories.

See Also

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Disclaimer: This guide is for informational purposes only. Official specifications, recall details, and warranty terms are determined by BYD Automotive Australia (EVDirect). Always consult an authorized dealer or official owner’s manual.