How to Open a Tesla Service Case That Gets Taken Seriously
Use the free tool — BatteryCheck
What This Guide Covers
This page is about opening a Tesla service case for battery concerns. It is not a diagnosis, and it is not affiliated with Tesla. It only uses the facts you bring — what the car shows and what a service estimate says.
What You Need Before You Start
- Rated range now, as shown on the car
- Rated range when the car was new
- Current mileage
- Year and model
- Any service estimate you already received from Tesla
Write these down exactly as the car or the estimate shows them. Do not round or guess.
How the Battery Warranty Works
Tesla's battery warranty is described as covering 8 years and 70% capacity retention. This guide does not have further detail beyond that — for example, it does not know how this applies to your specific model, year, or mileage limits that may also apply. Confirm the exact terms with Tesla directly before relying on this number.
What's Normal — and What's Unknown
This guide does not have data on what counts as "normal" degradation beyond the 8-year/70%-retention warranty threshold. If your numbers are close to or below that threshold, that is worth raising directly with Tesla. If they are not, this guide cannot tell you whether your loss is typical — that is something to confirm with Tesla or a qualified professional.
Making Your Case Get Taken Seriously
- Bring your rated range now, rated range when new, mileage, year, and model together — not just one number
- Bring a copy of any service estimate you already have
- Ask directly how your numbers compare to the 8-year/70%-retention warranty
- Ask Tesla to confirm, in writing, what the warranty covers for your specific car
This is not legal or technical advice. This is a way to organize your own numbers before you talk to Tesla.
What to Do Next
Use the free tool to type in what your car shows — rated range now, rated range when new, mileage, year, and model — or paste your service estimate. It will do the degradation math from your own numbers and show how they relate to the 8-year/70%-retention battery warranty. This is not a diagnosis, and it is not affiliated with Tesla. Always confirm the final answer with Tesla or a qualified professional.