Is the 2009 Toyota Prius a bad year?
502 owner complaints to NHTSA. Engine and transmission complaints are in line with other Prius years.
Keep it
Engine and transmission complaints for the 2009 Toyota Prius are in line with other Prius years. Brakes, speed control and exterior lighting stand out for this year: see below.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2009 Prius owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 16,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| BrakesSTANDS OUT | 199 (40%) | 6k–74k miles · around this mileage | Brake pad replacement (one axle) $115–$390 · Brake pads and rotors replacement (one axle) $200–$1,084 |
| Speed controlSTANDS OUT | 71 (14%) | 7k–24k miles · around this mileage | — |
| Exterior lightingSTANDS OUT | 111 (22%) | 58k–100k miles · ahead | — |
| Transmission and drivetrain | 22 (4%) | 7k–101k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Traction control | 15 (3%) | 2k–30k miles · around this mileage | — |
| Steering | 13 (3%) | 7k–120k miles · around this mileage | Steering rack and pinion replacement $700–$2,100 |
| Stability control | 12 (2%) | 12k–123k miles · around this mileage | — |
| Electrical system | 60 (12%) | 29k–128k miles · ahead | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Engine | 25 (5%) | 49k–125k miles · ahead | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Fuel system | 24 (5%) | 20k–125k miles · ahead | Fuel pump replacement $220–$1,500 · Fuel injector replacement (one injector) $300–$1,200 |
| Body structure | 19 (4%) | 36k–88k miles · ahead | — |
| Air bags | 17 (3%) | 30k–105k miles · ahead | — |
| Collision avoidance | 5 (1%) | too few with a mileage | — |
| Suspension | 5 (1%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 16,000 miles. Not a quote.
What owners reported alongside their complaints
Of 502 complaints: 64 mention a crash · 4 mention a fire · 21 report an injury · 8 say the car was towed.
4 complaints were filed in the last 12 months, the newest in Jun 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
Recalls for the 2009 Toyota Prius: 6
During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed. If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position.
The affected vehicles have a steering intermediate extension shaft assembly built with metal splines that complete the connection from the steering wheel to the steering gear. These splines may have been manufactured with an insufficient hardness. Over time, the splines may wear and eventually fail resulting in a loss of steering ability, increasing the risk of a vehicle crash.
During manufacturing, a scratch may have occurred inside of the electrically driven water pump at the coil wire. The coil wire may corrode at the scratched portion. The corroded coil wire may break and the water pump could stop.
These vehicles were sold without the requisite load carrying capacity modification labels. A driver may overload a vehicle which may increase the risk of a crash.
These vehicles were sold between september 1, 2005 and june 2, 2008 without the requisite load carrying capacity modification labels. This does not meet the standard requirements.
The accelerator pedal can get stuck in the wide open position due to its being trapped by an unsecured or incompatible driver's floor mat. A stuck open accelerator pedal may result in very high vehicle speeds and make it difficult to stop the vehicle, which could cause a crash, serious injury or death.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Toyota: 114
Repair instructions Toyota sent its dealers for symptoms seen in the shop on the 2009 Toyota Prius. Ask a dealer or mechanic for a bulletin by its number.
Some vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup…
The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been…
TechTip: Condition - The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power…
Low battery voltage can contribute to a MIL "ON" condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340…
NHTSA defect investigations: 2
Pedestrian alert sounds
Intermediate Steering Shaft Separation
Neighbouring years
2008 Prius: 1,496 complaints, keep it · 2010 Prius: 2,822 complaints, keep it.
Every Toyota Prius year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026 · All Prius years side by side
Other Toyota models: Toyota 4Runner · Toyota Avalon · Toyota C-HR · Toyota Camry · Toyota Camry Hybrid · Toyota Camry Solara · Toyota Celica · Toyota Corolla · Toyota Corolla Cross · Toyota Corolla Matrix · Toyota Echo · Toyota FJ Cruiser · Toyota Grand Highlander · Toyota Highlander · Toyota Highlander Hybrid · Toyota Matrix · Toyota Prius c · Toyota Prius v · Toyota RAV4 · Toyota RAV4 Hybrid · Toyota RAV4 Prime · Toyota Sequoia · Toyota Sienna · Toyota Sienna Hybrid · Toyota Tacoma · Toyota Tundra · Toyota Venza · Toyota Venza Hybrid · Toyota Yaris. All makes and models.
Questions
Is the 2009 Toyota Prius a bad year?
502 owner complaints to NHTSA. Engine and transmission complaints are in line with other Prius years. At 16,000 miles the tool says: Keep it.
What are the most common problems with the 2009 Toyota Prius?
By owner complaints to NHTSA: brakes (199), speed control (71), exterior lighting (111), transmission and drivetrain (22), traction control (15).
How many recalls does the 2009 Toyota Prius have?
6 recall campaigns list this model year: Seats (NHTSA 13V-014), Steering (NHTSA 12V-537), Hybrid system (NHTSA 12V-536), Equipment (NHTSA 10V-036) and more. A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.