NHTSA lists 1 safety recall and 111 owner complaints for the 2003 Toyota Prius. Most complaints involve steering (39) and electrical system (13). The EPA rates it 41 mpg combined.
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2001 THROUGH 2003 PRIUS PASSENGER CARS MANUFACTURED FROM JANUARY 28, 2000, THROUGH MAY 30, 2003. THE STEERING LINKAGE MAY LOOSEN, RESULTING IN REDUCED ELECTRIC STEERING ASSISTANCE WHEN MAKING A LEFT TURN.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Prius model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 2001 | 170 |
| 2002 | 193 |
| 2003 | 111 |
| 2004 | 610 |
| 2005 | 1,051 |
| 2006 | 1,440 |
| 2007 | 2,004 |
| 2008 | 1,497 |
| 2009 | 502 |
| 2010 | 2,823 |
| 2011 | 523 |
| 2012 | 688 |
| 2013 | 414 |
| 2014 | 241 |
| 2015 | 166 |
| 2016 | 181 |
| 2017 | 91 |
| 2018 | 38 |
| 2019 | 30 |
| 2020 | 14 |
| 2021 | 6 |
| 2022 | 24 |
| 2023 | 21 |
| 2024 | 27 |
| 2025 | 16 |
“The contact owns a 2003 Toyota Prius. The contact stated that while driving at 65 MPH, the steering wheel began to vibrate with an unknown message displayed on the instrument panel. As the failure persisted, the message disappeared, and the contact was able to drive to her destination. Upon restart of the vehicle, the contact received a do not drive message on the instrument panel with the steering wheel vibrating. Due to the failure, the contact had the vehicle towed to a dealer where it was diagnosed with a defective steering sensor. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 11V304000 (Steering). The manufacturer was notified of the failure and referred her to the NHTSA Hotline for assistance. The vehicle was not repaired. The failure mileage was approximately 176,000.”
“FOR NO APPARENT REASON WHEN DRIVING, THE EMERGENCY BRAKE WILL ENGAGE, WITHOUT PRESSING THE E BRAKE PEDAL. ALSO, INTERMITTENT ONCE CAR IS PARKED AND DOORS LOCKED, ALARM WILL JUST START GOING OFF FOR NONREASON.”
“THERE IS NO THERMOSTAT GAUGE IN A 2003 TOYOTA PRIUS , THE CAR OVER HEATS AND YOU DON'T KNOW UNTIL YOUR IN THE MIDDLE OF TRAFFIC NEARLY GETTING KILLED. TOYOTA WAS CONTACTED, BUT SAY NOT A RECALL AND THEY DON'T HONESTLY CAR CAUSE CAR IS OLD . THAT'S NOT RIGHT , ANYTHING YOU STILL USE FROM CARS OR EVEN MEDICINE HAVE LATER COME BACK TO HURT OR KILLED PEOPLE. THERE IS NO HOT TO COLD GAUGE IN THE CAR , 2003 ONLY . I HAVE INVESTIGATED AND SEE PEOPLE PUBLISH ABOUT THIS BUT LET IT SLIP BY . I WAS DRIVING WITH NO INSTALLED GAUGE AND SURVIVED THROUGH MAKE A LEFT HAND TURN ON A STALLED VEHICLE THAT OVER HEATED AND WAS LATER CHECK BY TOYOTA TECHNICIANS THAT SAID F THERE WAS A THERMOSTAT GAUGE PROBLEM WOULD OF MOST LIKELY BE AVOIDED. SOMEBODY CAN'T KEEP OPEN AND CLOSING THE RADIATOR CAP CAUSE OF THIS MISSING GAUGE . OIL HAS DIPSTICK YOU CHECK !!! SAFELY TOO. NOT GOING FRY MY FACE OR BURN MY HANDS ON KEEP CHECKING THE RADIATOR. PLUS WITH A PROPER GAUGE YOU MIGHT KNOW IF YOUR CAR IS COOLED DOWN OR SAFER TO CHECK. TOYOTA HAD REFUSED TO ADDRESS OR CLAIM ANY ISSUES. CASE# [XXX]. PEOPLE LIVES ON AT STAKE CAUSE THEY WANTED TO A. SAVE MONEY B. DON'T KNOW HOW FORGET TO INSTALL THE…”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Prius Auto (variable gear ratios), 4 cyl, 1.5 L · Front-Wheel Drive | 42 | 41 | 41 | $1,550 | 217 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Nov 4, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 111 complaints with NHTSA. The most-cited components are steering (39), electrical system (13), engine and engine cooling (13). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2003 Toyota Prius at 41 mpg combined, depending on engine and drivetrain (1 version rated).