← New search

2003 Toyota Prius

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2003 Toyota Prius do not stand out strongly from the model-year median of 164.

About this comparison →

When problems were reported

Mileage at the reported incident

81 reports with mileage · 18 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Steering. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports0 fire reports5 injury reports

Engine And Engine Cooling complaints

11 reports
Clear category filter
123,200 miles · Jul 31, 2017
Electrical SystemEngine And Engine CoolingFuel/propulsion SystemInjury

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 BAC…

Read full complaint

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 PART FOR THE YEAR ON EVERY 2003 PRIUS !! PLEASE HELP , TOYOTA DOES NOT CAR ABOUT MY SAFETY OR ANYBODY ELSE SAFETY - [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #11011713

30,000 miles · Apr 29, 2010
Engine And Engine CoolingPower Train

TL* THE CONTACT OWNS A 2003 TOYOTA PRIUS. THE CONTACT STATED HIS VEHICLE HAD BEEN TO THE DEALER APPROXIMATELY THIRTY TIMES FOR VARIOUS SAFETY FAILURES. THE CONTACT HAD EXPERIENCED THE VEHICLE STALLING WITHOUT WARNING WHILE TRAVELING UPHILL AT SPEEDS OF 25 MPH, THE INSTRUMENT PANEL WARNING LIGHTS REMAINED ILLUMINATED, THE VEHICLE…

Read full complaint

TL* THE CONTACT OWNS A 2003 TOYOTA PRIUS. THE CONTACT STATED HIS VEHICLE HAD BEEN TO THE DEALER APPROXIMATELY THIRTY TIMES FOR VARIOUS SAFETY FAILURES. THE CONTACT HAD EXPERIENCED THE VEHICLE STALLING WITHOUT WARNING WHILE TRAVELING UPHILL AT SPEEDS OF 25 MPH, THE INSTRUMENT PANEL WARNING LIGHTS REMAINED ILLUMINATED, THE VEHICLE WOULD NOT ENGAGE FROM BATTERY TO GASOLINE POWER WHEN WARRANTED, AND THE CONTACT INTERMITTENTLY WAS UNABLE TO MOVE THE GEAR SHIFT SELECTOR INTO THE REVERSE POSITION. THE VEHICLE WAS TAKEN TO THE DEALER WHERE HE ADVISED THAT THERE MAY BE ENGINE OIL IN THE THROTTLE CAUSING THE STALLING ISSUES. THE CONTACT WAS AWAITING A HYBRID EXPERT TO FURTHER INSPECT THE VEHICLE. THE FAILURE MILEAGE WAS APPROXIMATELY 30,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 97,300.

NHTSA ODI #10328099

43,746 miles · Feb 10, 2010
Electrical SystemEngine And Engine Cooling

WARNING LIGHT COMES ON AND MANUAL SAYS DO NOT OPERATE VEHICLE, PARK IMMEDIATELY. THIS HAPPENED ON MY 2003 TOYOTA PRIUS IN DECEMBER. FORTUNATELY THE DEALER WAS OPEN AND WHEN REPORTED SAID IT WAS NOT A BIG DEAL, THE CARE WAS DRIVABLE AND SHOULD BE BROUGHT IN FOR SERVICE. IN SERVICE FOUND MASTER WARNING LIGHT CODES P0300, 301, 3…

Read full complaint

WARNING LIGHT COMES ON AND MANUAL SAYS DO NOT OPERATE VEHICLE, PARK IMMEDIATELY. THIS HAPPENED ON MY 2003 TOYOTA PRIUS IN DECEMBER. FORTUNATELY THE DEALER WAS OPEN AND WHEN REPORTED SAID IT WAS NOT A BIG DEAL, THE CARE WAS DRIVABLE AND SHOULD BE BROUGHT IN FOR SERVICE. IN SERVICE FOUND MASTER WARNING LIGHT CODES P0300, 301, 302, 303, 304, -3191, P33101, C1202 THEN NOTED "FOUND WARRANTY ENHANCEMENT TO CLEAN THROTTLE BODY (EG9016.5 01.99). WAS NEVER NOTIFIED OF THIS ISSUE AND WAS PARKED IN DANGEROUS LOCATION WHILE ATTEMPTING TO ASCERTAIN WHAT STEPS TO TAKE IN LIGHT OF THE "DO NOT OPERATE VEHICLE" WARNING IN THE MANUAL. SAME SITUATION AROSE IN OUR 2002 PRIUS THIS DATE AND AWAITING RESULTS OF DEALER'S ANALYSIS (ALTHOUGH WHEN THE LIGHT WENT OUT THEY SAID WE COULD JUST AS EASILY CANCEL THE SERVICE APPOINTMENT). IN BOTH CASES SERVICE DEPARTMENTS SEEMED FAMILIAR WITH PROBLEM (AND MY SERVICE ADVISOR REFERRED TO IT AS A "SILENT RECALL".) *TR

NHTSA ODI #10308477

Mileage unknown · Feb 11, 2008
Electrical SystemEngine And Engine Cooling

2003 TOYOTA PRIUS WITH ENGINE PROBLEMS. CONSUMER STATES THAT THE TRIANGLE AND ENGINE LIGHTS WOULD ILLUMINATE UPON STARTING THE VEHICLE. MECHANIC STATED THAT THERE WAS OIL IN THE AIR INTAKE AND ON THE SENSORS. *KB THE CONSUMER STATED TWICE WHILE HIS WIFE WAS DRIVING, THE VEHICLE SHUT OFF, WHICH LEFT HER DRIVING WITH JUST THE EL…

Read full complaint

2003 TOYOTA PRIUS WITH ENGINE PROBLEMS. CONSUMER STATES THAT THE TRIANGLE AND ENGINE LIGHTS WOULD ILLUMINATE UPON STARTING THE VEHICLE. MECHANIC STATED THAT THERE WAS OIL IN THE AIR INTAKE AND ON THE SENSORS. *KB THE CONSUMER STATED TWICE WHILE HIS WIFE WAS DRIVING, THE VEHICLE SHUT OFF, WHICH LEFT HER DRIVING WITH JUST THE ELECTRIC MOTOR. *JB

NHTSA ODI #10218314

116,289 miles · Jan 9, 2008
Engine And Engine CoolingPower Train

AFTER A SERIES OF PROBLEMS WITH THE PRIUS ENGINE THE LOCAL TOYOTA DEALER INFORMED ME THAT I NEEDED TO HAVE THE CAR'S TRANSMISSION REPLACED. NATURALLY THE VEHICLE IS NO LONGER COVERED BY ITS WARRANTY. BACK GROUND: 2003 PRIUS, ODOMETER READING 116,289. ON 12/22/2008, I STARTED THE CAR AND THE CHECK ENGINE LIGHT APPEARE…

Read full complaint

AFTER A SERIES OF PROBLEMS WITH THE PRIUS ENGINE THE LOCAL TOYOTA DEALER INFORMED ME THAT I NEEDED TO HAVE THE CAR'S TRANSMISSION REPLACED. NATURALLY THE VEHICLE IS NO LONGER COVERED BY ITS WARRANTY. BACK GROUND: 2003 PRIUS, ODOMETER READING 116,289. ON 12/22/2008, I STARTED THE CAR AND THE CHECK ENGINE LIGHT APPEARED. I WAS TOWED TO THE DEALERSHIP. THE DEALERSHIP INFORMED ME THAT THE GASOLINE ENGINE SHUT DOWN AND THE BATTERY RAN OUT OF POWER. THE DEALERSHIP COULD NOT REPRODUCE THE PROBLEM. ON 12/27/2008, I STARTED THE CAR AND THE CHECK ENGINE LIGHT APPEARED AGAIN. I HAD THE CAR TOWED TO THE TOYOTA DEALER. THE DEALERSHIP DISCOVERED OIL IN THE INTAKE MANIFOLD AS PER A TSB. THE DEALERSHIP DID NOT CHARGE ME FOR PART OF THE REPAIRS. ON 01/04/2008, I WAS DRIVING WHEN AN INTERMITTENT GRINDING NOISE BEGAN ON BOTH BRAKING AND ACCELERATION. I FOUND THAT THE NOISE DISAPPEARED IF I BRAKED AND ACCELERATED EXTREMELY GENTLY. I IMMEDIATELY DROVE TO THE DEALERSHIP. WHEN I WENT TO THE DEALERSHIP, I WAS TOLD THAT THE PROBLEM COULD BE AS SIMPLE AS A SHIM IN THE BRAKING SYSTEM THAT MAY HAVE SLIPPED OUT OF POSITION. I AUTHORIZED AN ESTIMATE OF $52.52. THE FOLLOWING DAY, A SERVICE PERSON OF THE DEALERSHIP CALLED AND TOLD ME THAT THE BRAKES WERE FINE BUT THAT THE PROBLEM COULD BE RESOLVED BY CHANGING THE SPARKPLUGS. I ORALLY AUTHORIZED AN ESTIMATE OF ABOUT $150.00 (I DON?T REMEMBER THE EXACT AMOUNT.). THE SERVICE REP CALLED ME LATER THAT DAY (1/5) AND EXPLAINED THAT MY PROBLEM WASN'T?T REALLY THE SPARKPLUGS BUT THAT THE CAR'S TRANSMISSION NEEDED TO BE REPLACED. THE ESTIMATE FOR THE PARTS AND LABOR FOR THIS REPAIR WOULD BE APPROXIMATELY $2,000. THE SERVICE REP INFORMED ME ON 1/6/2008 THAT A MISTAKE WAS MADE AND COST OF THE NEW TRANSMISSION ALONE WOULD BE $5,000, WITH OTHER PARTS, LABOR, AND THE COST OF A RENTAL CAR, THE FINAL ESTIMATE FOR REPAIR WAS AROUND $7,000. *CN

NHTSA ODI #10214314

107,000 miles · Sep 10, 2007
Engine And Engine Cooling

2003 TOYOTA PRIUS ENGINE STALLED THREE TIMES. DEALER REPAIRED AND PROBLEM RECURRED AGAIN THE SAME DAY. *TR. UPDATED 01/09/08. *LJ THE DEALER FOUND OIL INSIDE THE MANIFOLD. UPDATED *JB

NHTSA ODI #10202434

108,000 miles · Feb 27, 2007
Electrical SystemEngine And Engine Cooling

2003 TOYOTA PRIUS -- IN COLD WEATHER THE CARS COMPUTER DOES NOT ACT PROPERLY AND WILL SHUT DOWN THE ENGINE. *NM

NHTSA ODI #10183673

75,000 miles · Sep 21, 2006
Engine And Engine Cooling

DT*: THE CONTACT STATED WHILE TRAVELING VARIOUS SPEEDS, THE VEHICLE INTERMITTENTLY STALLED AND LOST POWER. THE WARNING LIGHTS ILLUMINATED OCCASIONALLY. THE VEHICLE WAS TAKEN TO THE DEALERSHIP NUMEROUS TIMES, BUT THE PROBLEM PERSISTED. THE DEALERSHIP REPLACED THE HYBRID ENGINE COMPUTER, THE MASS AIR FLOW METER, FUEL TANK, AND …

Read full complaint

DT*: THE CONTACT STATED WHILE TRAVELING VARIOUS SPEEDS, THE VEHICLE INTERMITTENTLY STALLED AND LOST POWER. THE WARNING LIGHTS ILLUMINATED OCCASIONALLY. THE VEHICLE WAS TAKEN TO THE DEALERSHIP NUMEROUS TIMES, BUT THE PROBLEM PERSISTED. THE DEALERSHIP REPLACED THE HYBRID ENGINE COMPUTER, THE MASS AIR FLOW METER, FUEL TANK, AND HYBRID BATTERY.

NHTSA ODI #10168885

71,000 miles · Dec 12, 2005
Engine And Engine CoolingUnknown Or OtherInjury

REFERENCE INVESTIGATION # PE05029: MY TOYOTA PRIUS 2003 [XXX] GASOLINE/ ELECTRIC HYBRID VEHICLES THAT CAN BE OPERATED IN GASOLINE OR ELECTRIC MODE. ON 4 SEPARATE OCCASIONS, THE GASOLINE ENGINE SHUT DOWN SUDDENLY WITHOUT WARNING. EACH TIME I WAS DRIVING WITH THE SPEED OF HIGHWAY TRAFFIC. THE THREE PREVIOUS TIMES THE VEHICLE…

Read full complaint

REFERENCE INVESTIGATION # PE05029: MY TOYOTA PRIUS 2003 [XXX] GASOLINE/ ELECTRIC HYBRID VEHICLES THAT CAN BE OPERATED IN GASOLINE OR ELECTRIC MODE. ON 4 SEPARATE OCCASIONS, THE GASOLINE ENGINE SHUT DOWN SUDDENLY WITHOUT WARNING. EACH TIME I WAS DRIVING WITH THE SPEED OF HIGHWAY TRAFFIC. THE THREE PREVIOUS TIMES THE VEHICLE CONTINUED TO OPERATE USING THE ELECTRIC MODE FOR A PERIOD OF TIME AFTER THE GAS ENGINE STALLED. THIS LAST AND 4TH TIME THE VEHICLE SHUT DOWN AT THE SAME TIME THAT THEY FELT THE GAS ENGINE STALLED. I WAS ABLE TO RESTART THE VEHICLE AFTER 3 IMMEDIATE ATTEMPTS TO TURN THE CAR ON. I WAS ABLE TO SLOWLY DRIVE THE CAR OFF THE HIGHWAYS AND TO PARK. AS WITH THE LAST 3 TIMES, I AGAIN HAD THE VEHICLE TOWED. EACH OF THE 4 STALLING INCIDENTS, I WAS ALERTED BY AN AUDIBLE SOUND AND VARIOUS WARNING LIGHTS. AFTER THE CAR STALLED THE BRAKE AND STEERING OPERATION CONTINUED TO FUNCTION AS THE CAR DRIFTED TO A STOP. EACH TIME THE REASON WAS FOR THE FAILURE TO OPERATE WAS CAUSED BY SOMETHING DIFFERENT, AS I AM TOLD BY THE SERVICE CENTER. THIS LAST TIME, (4TH) THE DEALERSHIP SAID THE CAR IS "FINE" ASKED ME TO PAY THE TOW AND IS SENDING ME ON MY WAY. NOTHING WAS DONE. I DRIVE ABOUT 90 MILES A DAY WITH MY 8 YR OLD DAUGHTER AS MY PRIMARY PASSENGER. THIS IS A VERY DANGEROUS SITUATION THAT HAS NOT BEEN CORRECTED BY TOYOTA. MY DEALERSHIP (KINGS TOYOTA CINCINNATI OHIO). *NM UPDATED 07/17/2012 *JS INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI #10145014

43,912 miles · Oct 15, 2005
Electrical SystemEngine And Engine Cooling

2003 TOYOTA PRIUS GAS ENGINE STALLED, WARNING LIGHTS CAME ON ALL OVER THE SCREEN, AND IT WOULD ONLY DRIVE ON "BATTERY POWER." AFTER STOPPING, I TURNED THE CAR OFF BUT IT WOULD NOT RE-START IMMEDIATELY. AFTER A FEW TRIES AND THEN WAITING, THE GAS ENGINE STARTED WHEN I TURNED THE KEY. DURING THE TIME IT WAS RUNNING ON BATTERY, AIR…

Read full complaint

2003 TOYOTA PRIUS GAS ENGINE STALLED, WARNING LIGHTS CAME ON ALL OVER THE SCREEN, AND IT WOULD ONLY DRIVE ON "BATTERY POWER." AFTER STOPPING, I TURNED THE CAR OFF BUT IT WOULD NOT RE-START IMMEDIATELY. AFTER A FEW TRIES AND THEN WAITING, THE GAS ENGINE STARTED WHEN I TURNED THE KEY. DURING THE TIME IT WAS RUNNING ON BATTERY, AIR CONDITIONER WAS BLOWING HOT AIR. AFTER GAS ENGINE RE-STARTED, AIR CONDITIONER BLEW COLD AIR. TOYOTA SERVICE SAID THEY HAD NEVER SEEN ANYTHING LIKE WHAT WAS ON THE SCREEN THEY DIAGNOSED AND SAID IT WAS THE COMPUTER AND ORDERED PARTS. THEY WERE ALSO THINKING THE BATTERY HAD SOMETHING TO DO WITH IT. 1. THEY MAY NOT HAVE DIAGNOSED MY CAR CORRECTLY SINCE THEY DO NOT KNOW ABOUT THIS RECALL, AND MAY NOT FIX IT CORRECTLY (INCLUDING PUTTING GREASE ON CERTAIN WIRES). AND 2. THAT NEWS REPORTS IN THE U.S. SAY IT IS 2004 AND 2005 PRIUSES WHICH ARE AFFECTED, SO 2003 OWNERS MAY NOT GET LETTERS TO TAKE THEIR CAR IN ON THIS RECALL. THIS COULD RESULT IN PEOPLE BEING KILLED. I WANT SERVICE DEPT TO UNDERSTAND THAT PRIUS 2003 OWNERS MAY NOT BE NOTIFIED BECAUSE TOYOTA MAY NOT BE AWARE THAT THEY ALSO HAVE THE PROBLEM. THEY SHOULD INFORM TOYOTA THEY HAVE A 2003 IN FOR REPAIR WITH SAME PROBLEM AS 2004-2005 CARS. I AM CONCERNED THEY MAY NOT DO REPAIRS ON MY CAR IN ACCORDANCE WITH WHAT IS SPECIFIED ON THE RECALL EVEN IF I DID NOT GET A LETTER. THIS UPSETS ME AND IT ALSO SCARES ME. I AM SURE TOYOTA WOULD NOTIFY SERVICE & OWNERS IF THEY WERE AWARE IT ALSO AFFECTS 2003 PRIUS'. SO I WANT YOU TO MAKE THEM AWARE OF IT AND BE SURE THEY SEND THE 2003 OWNERS LETTERS TOO. *NM

NHTSA ODI #10139774

Official recalls

1

11V304000 · Steering:electric Power Assist System

Jun 1, 2011

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.

Consequence & remedy

Consequence: LOSS OF POWER STEERING, PARTICULARLY WHEN AN OPERATOR IS ACTIVELY INTENDING TO STEER THE VEHICLE, MAY INCREASE THE RISK OF A CRASH.

Remedy: TOYOTA WILL NOTIFY OWNERS AND DEALERS WILL REPLACE THE NUTS IN THE STEERING LINKAGE FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JULY 8, 2011. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

DP22005 · Pedestrian Alert Sounds

Opened Jan 27, 2023 · Closed Aug 7, 2023

Status: closed (inferred from source dates) · Electrical System:propulsion System

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.