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Subaru · Known Issues

2025 Subaru BRZ Problems: 1 Known Issue

2025 model year · 380+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 380+ owner reports, the 2025 Subaru BRZ has 1 documented issue. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Second Generation Rear Differential Whine/Noise with 380 owner reports. DIY maintenance guides at au7o.io.

In This Article

  • BRZ Drivetrain1
  • Recalls1
  • FAQ
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In This Article

  • Drivetrain1
  • Recalls1
  • FAQ

All 1 Known Issue

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Community reported
380 owners

On the 2022-2025 Subaru BRZ, 2022+ second-generation BRZs (and twin Toyota GR86) have reports of rear differential whine or droning noise, particularly noticeable at 30-50 mph during deceleration and light throttle. The noise comes from the ring and pinion gear mesh in the Torsen limited-slip differential. While some gear noise is normal for an LSD, affected vehicles have excessive noise audible inside the cabin. Subaru released TSB 03-73-23 addressing differential noise with fluid replacement procedure.

Common Symptoms

  • Whining noise from rear of vehicle at 30-50 mph
  • Noise most noticeable during deceleration/coast
  • Droning sound that varies with speed, not RPM
  • Noise may quiet down after differential warms up
  • Sound more prominent with windows up in quiet cabin

How to Fix

Have dealer perform differential fluid replacement per TSB 03-73-23 using Subaru 75W-90 GL-5 gear oil with friction modifier (Subaru SOA427V1710). The break-in fluid is replaced with the updated fluid and an additive that reduces gear mesh noise. If noise persists after fluid change, ring and pinion inspection and possible replacement may be needed under warranty.

Typical repair cost:$0 - $800

Research This Issue

Based on 380 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence380 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
NHTSA Recalls1 recall

EXTERIOR LIGHTING:TURN SIGNAL

Subaru of America, Inc. (Subaru) is recalling certain 2022 BRZ and Toyota GR86 vehicles. The rear turn signals may intermittently become inoperative.

Campaign #23V60900031/08/2023

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

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Other Subaru Models

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Frequently Asked Questions

What are the most common Subaru BRZ problems?

According to Au7o's analysis of 380+ owner reports, the 2025 Subaru BRZ has 1 documented issue. The documented issue is: Second Generation Rear Differential Whine/Noise. None are rated critical, but regular maintenance is recommended.

Is the Subaru BRZ reliable?

The 2025 Subaru BRZ has 1 known issue documented across 380+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Subaru BRZ problems?

Repair costs for known Subaru BRZ issues range from $0 to $800, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2022-2025 Subaru BRZ Second Generation Rear Differential Whine/Noise?

2022+ second-generation BRZs (and twin Toyota GR86) have reports of rear differential whine or droning noise, particularly noticeable at 30-50 mph during deceleration and light throttle. The noise comes from the ring and pinion gear mesh in the Torsen limited-slip differential. W… Repairs typically run $0-$800. Severity: low.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 380+ owner reports, NHTSA recalls, TSBs, and automotive forums.