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Tesla Model 3 Long Range (2021)

Car

Tesla Model 3 Long Range (2021)

1 source-linked failure report. Most reported: HV battery failure; replaced with lower-range pack (~340→260 mi).

Reliability signal — · Insufficient data · data confidence Very Low

1 confirmed failure reports

Reliability summary

What is likely to go wrong, when it happens, and how expensive it can be — from source-linked failure reports. Counts are reports in our database, not a population failure rate.

Reliability signal

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1 confirmed failure report · Insufficient data · Data confidence: Very Low

Need at least 5 confirmed failure-signal reports before showing an A–F grade.

Most common issue
HV battery failure; replaced with lower-range pack (~340→260 mi)
Typical first failure
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Median of confirmed reports with timing
Median repair cost
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Reported costs only · market varies
Highest reported repair
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Not a quote · costs differ by country

What breaks?

Failure types

Click a type in the reports section below to filter.

  • HV battery failure; replaced with lower-range pack (~340→260 mi)1 · 100%

When does it break?

Failure timing

Months after purchase, using reports that included timing.

No timing data yet for this model.

What does it cost?

Reported repair costs

Distribution of owner-reported repair costs— not a quote or guarantee. Labor and parts prices vary by country.

No reported repair costs yet for this model.

Median months to failure

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Failure reports

1

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Median repair cost

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Still recommend

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% repaired

100%

% mfr warranty

100%

% extended warranty

—

% support helpful

—

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What breaks?

What breaks? · reports

HV battery failure; replaced with lower-range pack (~340→260 mi)

Battery

Forum / discussionIndexed Oct 8, 2026Source-linkedVerify source — Reddit post

Reddit: "Long Range Model 3 Tesla Replaced my battery with short range battery help?". Hello, I had a high voltage battery failure on my 2021 tesla 3. Before I was able to charge to 340 Miles brand new. Took my car into tesla repair in burlingame. Came out with a new battery but now the max capacity of the battery is only like 260 miles. This was covered under warranty. My old battery only had about 30k miles on it. Tesla ripped me off and committed fraud. How to sue them? Any advice is appreciated. I complained about the problem and their service advisor Mark Anthony just hung up on me over the phone when I asked to speak with the Manager. I drove 40 minutes one way to the se

UnverifiedEvidence ★★★☆☆Mfr warranty
View report details

Months until failure

Not stated

Repair cost

Not stated

Repaired

Yes

Manufacturer warranty

Yes

Extended warranty

Not stated

Support helpful

Not stated

Would recommend

Not stated

AI extraction confidence

84%

Verification status

Unverified

Evidence quality

★★★☆☆ (3/5)

Discussion

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