2015 Toyota Prius Service Brakes Problems
Owners have filed 89 complaints with NHTSA about service brakes problems on the 2015 Toyota Prius, 54% of all complaints for this model year. Half of the reports with a mileage happened before 35,000 miles. The words owners use most often: “brake booster” (40% of reports).
- 89service brakes complaints
- 35,000median miles at failure
- 11mention a crash
- 5mention an injury
- 0related recalls
- $3,300typical repair cost reported by owners
- 28%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Brake booster: mentioned in 36 of 89 complaints (40%)
- Support program: mentioned in 10 of 89 complaints (11%)
- Code C1391: mentioned in 8 of 89 complaints (9%)
- Abnormal leak: mentioned in 5 of 89 complaints (6%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical service brakes repair on the 2015 Toyota Prius at $3,300, and half of them between $2,700 and $3,750.
Based on 16 NHTSA complaints about this problem alone that state a repair bill or quote (2022–2026), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do service brakes problems happen?
Based on 19 complaints that reported the odometer reading.
How serious are the reports?
Of 89 complaints, 11 mention a crash, 5 an injury.
Toyota Prius service brakes complaints by model year
| Model year | Service Brakes complaints | Share of that year | Median miles |
|---|---|---|---|
| 2025 Prius | 2 | 13% | — |
| 2024 Prius | 2 | 7% | 3,000 |
| 2023 Prius | 2 | 10% | — |
| 2022 Prius | 4 | 17% | 10,000 |
| 2021 Prius | 1 | 17% | — |
| 2020 Prius | 4 | 29% | 8,185 |
| 2019 Prius | 9 | 30% | 3,498 |
| 2018 Prius | 3 | 8% | 4,500 |
| 2017 Prius | 14 | 15% | 14,932 |
| 2016 Prius | 18 | 12% | 7,193 |
| 2015 Prius | 89 | 54% | 35,000 |
| 2014 Prius | 94 | 45% | 21,000 |
| 2013 Prius | 231 | 56% | 83,500 |
| 2012 Prius | 184 | 43% | 77,000 |
| 2011 Prius | 264 | 51% | 80,000 |
| 2010 Prius | 593 | 21% | 93,000 |
| 2009 Prius | 63 | 13% | 130,000 |
| 2008 Prius | 145 | 10% | 129,325 |
| 2007 Prius | 127 | 6% | 123,377 |
| 2006 Prius | 73 | 5% | 139,500 |
| 2005 Prius | 82 | 8% | 135,626 |
| 2004 Prius | 21 | 3% | 138,000 |
| 2003 Prius | 5 | 5% | 117,689 |
| 2002 Prius | 4 | 2% | 30,000 |
| 2001 Prius | 5 | 3% | 125,225 |
When owners reported it
Related recalls (0)
No safety recall lists service brakes for the 2015 Toyota Prius. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The brake booster pump has malfunctioned, exactly 1 year outside of the secondary coverage supplied in the voluntary customer support program for this exact issue, despite being under 150,000 miles. Now the car is unsafe to drive since the brakes are malfunctioning.
I am reporting an active, severe safety hazard regarding the braking system on my 2015 Toyota Prius ( Mileage: 79,000). The vehicle has been officially diagnosed by Toyota Culver City with Diagnostic Trouble Code DTC C1391, confirming an internal failure and lack of pressure within the brake…
Problem: Brake Actuator is pulsing the Booster Pump to keep running intermittently, 5-10 seconds. Console lights lit up for ABS problem. Does not clear. Toyota Dealership Report: DCT C1391 Abnormal Leak: Monitored TEH Accumulator Pressure and its not holding pressure. Pump keeps running…
Frequently asked questions
Do all 2015 Toyota Priuss have service brakes problems?
No. NHTSA has 89 owner complaints about service brakes for the 2015 Toyota Prius (54% of the 166 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2015 Toyota Prius service brakes?
No recall currently lists service brakes for this vehicle.
At what mileage do service brakes problems start?
The median reported mileage is 35,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix service brakes problems on the 2015 Toyota Prius?
Owners report a typical cost of $3,300 (half paid between $2,700 and $3,750), from 16 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about service brakes problems on the 2015 Toyota Prius?
The most frequent phrase is “brake booster”, in 36 of 89 complaints, followed by “support program” (10).
See all 2015 Toyota Prius problems or service brakes problems across all Prius years.