Tesla battery health and degradation in Canada.

1. Park the car and tap Controls on the touchscreen.
2. Tap Software, then Additional Vehicle Information.
3. If it lists High Voltage Battery type: Lithium Iron Phosphate, you have an LFP pack (like my Model Y Standard). If no battery type is listed, it's a nickel-based pack (Owner's Manual, High Voltage Battery Information).

This matters because the recommended daily charge limit differs between battery types.

Get the full Used Tesla Buyer's Kit: Canada (CA$15)

1. Shift into Park.
2. Tap Controls, then Service.
3. Tap Battery Health. The car shows an estimate based on its battery management system, compared with the expected retention for your battery type, age and use (Tesla Model Y Owner's Manual).
4. Take a photo or screenshot of the screen so you can compare it over time, or show it to a buyer.

Tesla recommends this only if you have a concern about capacity. Before you start, the manual lists these requirements:

• Plugged into an AC charger that delivers at least 5 kW (a Level 2 charger, not a 120 V outlet).
• In Park, below 20% charge.
• No pending software update and no battery or thermal alerts.

1. Go to Controls > Service > Battery Health and start the test.
2. Leave the car plugged in. It can take up to 24 hours and drains the battery below 10%, possibly to 0%.
3. Climate control and Sentry Mode are off while it runs. Cancel the test before unplugging.

Need a Level 2 charger? See Level 1 vs Level 2 home charging in Ontario.

1. Open the Tesla app and pick your car.
2. Tap Service and start a new service request.
3. Describe the battery concern and attach your Battery Health screenshot.

Battery health itself is shown in the car; the app is how you get Tesla to look at it. Menu names can change between app versions.

Tesla's warranty itself notes that range estimates are "an imperfect measure of Battery capacity" because other things change them (Tesla New Vehicle Limited Warranty, Canada). In a Canadian winter, a cold battery shows less available range and charges more slowly, and that's temporary, not degradation. See how the LFP battery behaves in the cold and preconditioning before you drive or charge.

Source: Tesla Canada, Vehicle Warranty, checked October 20, 2026. Check the warranty that came with your own car, since Tesla says that one is authoritative.

• Tesla decides how capacity is measured and whether to repair or replace the battery, and a replacement pack only has to match what's expected for your car's age and mileage (Tesla New Vehicle Limited Warranty, Canada).
• A warranty for a car first delivered in Canada can be serviced in Canada or the US (warranty document).
• Basic warranty: 4 years or 80,000 km (Tesla Canada, Vehicle Warranty).

Related: how insurance prices the battery after a crash.

• Follow the recommended daily charge limit your car shows for its battery type. Tesla's manual says that for vehicles with a recommended daily charge limit of 80%, keep the daily limit at about 80% and save 100% for long drives (Owner's Manual, High Voltage Battery Information).
• Charge at Level 1 or Level 2 when you can and save Supercharging for road trips; charge often rather than waiting until the battery is low; and avoid leaving it at or near 0% or 100% for long periods (same source).

More: best settings for a new Model Y.

Ask the seller for a screenshot of the Battery Health screen, and check how much battery warranty is left (years and km) on the warranty table above. See Used Tesla Model Y prices in Canada.