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Data source: National Highway Traffic Safety Administration

  1. Home
  2. >Toyota
  3. >Prius
  4. >2004
  5. >Engine

2004 Toyota Prius Engine Problems

Engine complaints and recalls from NHTSA

Summary

The 2004 Toyota Prius has 92 NHTSA engine complaints and 1 engine-related recall.

Problem Areas for the 2004 Toyota Prius

Lights
161
Electrical
152
Engine
92
Brakes
72
Powertrain
31
Speed Control
29
Other
22
Airbags
17
Steering
10
Fuel System
8
Visibility
5
Seat Belts
3
Tires
3

92

Complaints

1

Recalls

0

Injuries Reported

Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026

Engine Recalls

12V536000

ENGINE AND ENGINE COOLING

Toyota is recalling certain model year 2004-2009 Prius vehicles manufactured August 6, 2003, through March 30, 2009 and FCHV-adv vehicles manufactured...

All Engine Complaints

Date ↓ComponentSummary
Apr 3, 2018ENGINETL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. WHILE DRIVING 45 MPH, THE HYBRID SYSTEM, STABILITY CONTROL...
Aug 28, 2017ENGINETL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. WHILE THE VEHICLE WAS IN THE GARAGE, THE ENGINE STARTED RU...
Jul 1, 2016ENGINEEVERY TIME I GET AN OIL CHANGE I MAKE SURE THAT THE RIGHT AMOUNT OF OIL GETS PUT IN THE ENGINE. I US...
Nov 29, 2015ENGINECOOLANT CONTROL VALVE IS FAILING ON MANY PRIUS'S WHICH WERE MADE BETWEEN 2004 TO 2009
Aug 19, 2015ENGINEWARNING TRIANGLE AND CHECK ENGINE LIGHTS CAME ON WHILE TRAVELING. TOOK VEHICLE TO INDEPENDENT MECH...
Dec 23, 2011ENGINETL* THE CONTACT OWNS A 2004 TOYOTA PRIUS HYBRID. THE CONTACT STATED THAT HOT AND COLD AIR WAS BEING ...
Mar 5, 2011ENGINE AND ENGINE COOLINGI WAS DRIVING ON THE FREEWAY AT ABOUT 63 MILES PER HOUR, I HAD BEEN DRIVING FOR ABOUT 20 MINUTES WHE...
May 10, 2010ENGINE AND ENGINE COOLINGFAILURE OF INVERTER COOLANT PUMP OCCURRED WITHOUT WARNING DURING NORMAL DRIVING CONDITIONS. THIS IS ...
Apr 10, 2010ENGINE AND ENGINE COOLINGDRIVING HOME AT NIGHT ON THE 405 FREEWAY AT APPROX. 65MPH, SUDDENLY ALL THE DASH WARNING LIGHTS ILLU...
Feb 18, 2010ENGINE AND ENGINE COOLINGWE OWN A 2004 TOYOTA PRIUS. ON 02/18/2010 IT LOST POWER ON THE ROAD, MAJOR MALFUNCTION LIGHTS CAME ...
Jan 23, 2010ENGINE AND ENGINE COOLINGON 23 JAN 2010, WHILE DRIVING I-85N IN THE SOUTH CAROLINA MOUNTAINS THE CAR STALLED AT 70MPH. AN AU...
Nov 7, 2009ENGINE AND ENGINE COOLING,VEHICLE SPEED CONTROL2004 PRIUS: AFTER DRIVING AT 10MPH ON GRAVEL ROAD WITH POTHOLES AND THEN TURNING ON TO SMOOTH PAVED ...
Sep 7, 2009ENGINE AND ENGINE COOLING2004 TOYOTA PRIUS. DRIVING AT 70 MPH ON I-57 NORTH. WHILE DRIVING THE GASOLINE ENGINE STOPPED FUNC...
Jun 9, 2009ENGINE AND ENGINE COOLINGTHIS HAPPENED TO ME AND COST OVER $700 TO FIX: FAILURE OF INVERTER/CONVERTER COOLANT PUMP. HYBRID V...
Apr 8, 2008ENGINE AND ENGINE COOLING2004 PRIUS STALLED WHILE DRIVING. TOWED TO DEALER WHO FOUND NO PROBLEM. *TR
Feb 25, 2008ENGINE AND ENGINE COOLING2004 TOYOTA PRIUS STALLING. AFTER SPEAKING W/ THE TOYOTA CONSUMER HELPLINE, I'VE LEARNED THAT THE CO...
Nov 8, 2006ENGINE AND ENGINE COOLINGPRIUS STALLED WHEN PULLING INTO TRAFFIC FROM A STOP LIGHT. ALL LIGHTS ON THE DASH BOARD WERE ILLUMIN...
Sep 19, 2006ENGINE AND ENGINE COOLINGDT*: THE CONTACT STATED WHILE DRIVING 30 MPH THE VEHICLE INTERMITTENTLY STALLED WITHOUT WARNING. TH...
Jun 26, 2006ENGINE AND ENGINE COOLINGFAILURE OF INVERTER/CONVERTER COOLANT PUMP. HYBRID VEHICLE HAS 2ND COOLANT LOOP FOR HIGH VOLTAGE INV...
Oct 14, 2005ENGINE AND ENGINE COOLINGMY TOYOTA PRIUS 2004 VIN [XXX] ENGINE SUDDENLY STALLED ON THE FREEWAY. I STILL CAN'T RESTART THE ENG...

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