← All vehicles/Used Vehicle Research
Buyer Research

2021 Tesla Model Y — Should You Buy One?

Typical asking price: $28,000–$45,000. There is 1 high-severity known issue you need to know before handing over a check.

Kestrel Take

The best-selling EV in the world for good reason — practical, fast, long range. Build quality is better than earlier Teslas. Battery health and recall status are the two things to check.

Known Issues for the 2021 Tesla Model Y

Ranked by wallet impact. These are documented, recurring problems — not freak accidents.

Battery health degradationHigh — wallet impact

At this mileage, range degradation is the key variable. Get the battery report — expect 85-92% on a well-used 2021.

Repair cost range: $10,000-$18,000 for replacement

Roof and glass roof condensationMedium

The glass roof can develop condensation between layers. Tesla replaces under warranty — verify if covered.

Repair cost range: $0 warranty to $2,000

Walk-Away Red Flags

  • Battery below 80% range retention
  • Condensation visible in glass roof layers
  • Open NHTSA recalls not addressed via OTA

Good Signs

  • Long Range dual motor — best range, best buffer as battery ages
  • Battery health report above 85%
  • All OTA updates current

Found a specific Tesla Model Y?

This page covers what goes wrong on the 2021 Tesla Model Y in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.

Get My Verdict — $7.99

No account required. Delivered to your inbox, usually within minutes.

Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.