BYD vs Tesla Warranty: 6-Year vs 5-Year Coverage Compared
BYD offers a 6-year / 150,000 km vehicle warranty with an 8-year / 160,000 km battery warranty and 8-year / 150,000 km drive unit warranty. Tesla offers a 5-year / unlimited km vehicle warranty (for vehicles delivered from January 2026) with an 8-year / 160,000-192,000 km battery warranty. BYD leads on warranty duration. Tesla leads on unlimited mileage coverage. Both guarantee battery retention above 70% SOH during the warranty period.
BYD Warranty Overview
BYD's warranty covers all vehicles sold through authorised BYD dealers. The warranty period begins from the date the vehicle purchase invoice is issued and expires at the specified date or mileage, whichever comes first.
| Measurement | BYD Coverage |
|---|---|
| Complete vehicle | 6 years / 150,000 km |
| Traction battery | 8 years / 160,000 km (SOH ≥70%) |
| Drive unit (motor, controller) | 8 years / 150,000 km |
| Charging equipment | 1 year from purchase date |
| A/C refrigerant | 1 year (non-hardware leakage) |
| Spare parts (customer purchased) | 12 months from purchase |
| Capped-price servicing | Yes, up to 10 years |
| Service interval | 12 months / 20,000 km |
For full servicing costs across all BYD models, the average BYD service cost guide.
Tesla Warranty Overview
Tesla updated its warranty for all Model 3 and Model Y vehicles delivered from 1 January 2026. The new terms are a significant improvement over the previous 4-year / 80,000 km coverage that was widely criticised as the worst in the segment.
| Measurement | Tesla Coverage (from Jan 2026) |
|---|---|
| Basic vehicle (standard use) | 5 years / unlimited km |
| Basic vehicle (commercial use) | 5 years / 150,000 km |
| Battery (RWD models) | 8 years / 160,000 km (70% retention) |
| Battery (LR/Performance) | 8 years / 192,000 km (70% retention) |
| Capped-price servicing | No fixed schedule |
| Service recommendation | A/C filters every 2 years, brake fluid every 2 years, tyre rotation every 20,000 km |
Head-to-Head Warranty Comparison
| Measurement | BYD | Tesla (from Jan 2026) |
|---|---|---|
| Vehicle warranty years | 6 years | 5 years |
| Vehicle warranty km | 150,000 km | Unlimited (standard use) |
| Battery warranty | 8 years / 160,000 km | 8 years / 160,000-192,000 km |
| Battery SOH guarantee | ≥70% | ≥70% |
| Drive unit warranty | 8 years / 150,000 km | 8 years (included in battery warranty) |
| Transferable to second owner | Yes (within warranty region) | Yes |
| Service network (AU) | 100+ BYD centres + 275 mycar locations | Tesla Service Centres + mobile service |
| Roadside assistance | Included (1800 293 288) | Included |
Battery Warranty: Both at 8 Years
Both brands cover the traction battery for 8 years with a 70% SOH retention guarantee. Key differences:
- BYD: 160,000 km cap across all models. LFP chemistry means the battery tolerates daily 100% charging without accelerated degradation.
- Tesla RWD: 160,000 km cap. Some RWD models use LFP cells (CATL-supplied) with similar charging tolerance.
- Tesla LR/Performance: 192,000 km cap. NMC chemistry prefers 80-90% daily charging for longevity.
- Battery replacement: BYD will repair or replace with a new, reconditioned, or remanufactured unit at BYD's discretion. Replacement capacity must equal the original before failure.
Drivetrain and Motor Coverage
BYD separately warrants the drive unit (motor, motor controller, high-voltage electric control assembly) for 8 years / 150,000 km. Tesla includes the drive unit within the battery warranty period.
In practice, both brands cover the core EV powertrain for 8 years. The distinction is administrative rather than practical for owners.
What Is NOT Covered: Common Exclusions?
BYD's warranty book lists specific exclusions. Many overlap with Tesla's terms:
- Natural wear and tear: Seat discolouration, trim tears, paint stone chips, wrinkling, abrasions
- Tyres: Punctures, splits, breaks, bursts from road conditions, incorrect inflation, or racing
- Accident damage: Collision, burning, theft, freezing, impact
- Modifications: Aftermarket changes to body, chassis, or parts. Non-BYD genuine spare parts
- Environmental damage: Acid rain, hail, chemicals, sap, floods, storms
- Racing: Any damage caused by or discovered during racing events
- Insufficient maintenance: Not following the maintenance schedule in the Owner's Manual
- Normal battery capacity decline: Degradation above 70% SOH is expected, not a defect
- Odometer tampering: Disconnected, altered, or inoperable mileage readings void the warranty
BYD specifically notes: "BYD does not require you to perform all maintenance services at a BYD authorized service provider." However, improper maintenance by non-authorised providers may exclude warranty coverage.
Roadside Assistance Comparison
- BYD: Complimentary roadside assistance included. Call 1800 293 288 (Australia). Available 24/7.
- Tesla: Roadside assistance included. Accessible through the Tesla app or by phone. Mobile service available for some repairs.
- Key difference: Tesla's mobile service can come to your location for minor repairs without a service centre visit. BYD's network is larger (100+ centres + 275 mycar locations) but mobile service is not as established.
Extended Warranty Options
- BYD: No official extended warranty program beyond the standard coverage. Capped-price servicing continues for 10 years.
- Tesla: No official extended warranty program. Third-party extended warranty providers exist but are not endorsed by Tesla.
- Both: Neither brand currently offers manufacturer-backed extended warranty in Australia. This may change as the market matures.
Warranty Voiding: What to Avoid
BYD's warranty book explicitly lists actions that void coverage:
- VIN defaced or altered
- Vehicle designated as salvage, flood-damaged, fire-damaged, or total loss by an insurer
- Failure to install software updates after notification
- Not complying with recall advisories
- Exceeding specified passenger and cargo load limits
The software update requirement is notable: if BYD notifies you of an OTA update and you ignore it, this can void your warranty. Keep your software current. S
Which Warranty Gives Better Peace of Mind?
BYD wins if you:
- Drive under 25,000 km/year (BYD's 6-year coverage outlasts Tesla's 5 years)
- Value a wider service network (100+ BYD centres + 275 mycar locations)
- Want capped-price servicing for 10 years
- Prefer a longer vehicle warranty by one full year
Tesla wins if you:
- Drive high annual mileage (unlimited km coverage eliminates distance anxiety)
- Prefer mobile service coming to your location
- Own a Long Range or Performance model (192,000 km battery coverage vs 160,000 km)
- Value Tesla's established OTA update track record
Common Mistakes Owners Make
- Assuming warranty covers all wear items. Tyres, brake pads, wiper blades, and seat wear are excluded by both brands.
- Using non-genuine parts and expecting coverage. BYD's warranty book clearly states non-genuine parts can void coverage for related failures.
- Ignoring OTA updates. BYD can void warranty if you fail to install notified updates.
- Comparing old Tesla warranty terms. Tesla upgraded to 5 years / unlimited km from January 2026. Older articles quoting 4 years / 80,000 km are outdated.
- Not keeping service records. Both brands require proof of maintenance. Keep all invoices and service stamps.
BYD offers one extra year of coverage (6 vs 5 years) and 10-year capped-price servicing. Tesla offers unlimited mileage and up to 192,000 km battery coverage on Long Range models. Both cover the battery for 8 years at 70% SOH. For most Australian owners driving 15,000-20,000 km annually, BYD's longer duration is the more relevant advantage.
Protect the parts your warranty doesn't cover. bydaccessories.store stocks model-specific BYD accessories including floor mats, boot liners, screen protectors, and paint protection films designed for every current BYD model in Australia.