2004 Toyota Prius Powertrain & Transmission Problems

SHIFTER STICKING IN DRIVE POSITION AS OPPOSED TO RETURNING TO ITS HOME POSITION. WHEN THIS SHIFTER STICKS, THE PARK BUTTON BECOMES DISABLED AND VEHICLE REMAINS IN DRIVE EVEN THOUGH PARK BUTTON IS ENGAGED

THE BASIC PROBLEM: THE GEAR SHIFT SELECTOR STICKS IN DRIVE OR "B" (ENGINE BRAKING MODE). IF THE DRIVER STOPS THE VEHICLE, WITH THE BRAKE DEPRESSED, AND THEN PRESSES THE PARK BUTTON TO PUT THE VEHICLE IN PARK, THE VEHICLE REMAINS IN DRIVE MODE. THE VEHICLE WILL MOVE AS SOON AS THE DRIVER LIFTS THEIR FOOT FROM THE BRAKE PEDAL, EVEN THOUGH THE DRIVER BELIEVES THEY HAVE ENGAGED THE PARK MODE. THE DRIVER HAS TO PLACE THE NORMALLY SPRING-ACTIVATED GEARSHIFT LEVER INTO THE HOME POSITION BEFORE THE CAR WILL SHIFT INTO PARK. DANGER TO THE DRIVER AND OTHERS WHO DRIVE THE CAR. THIS IS VERY DANGEROUS, AS THE DRIVER GETS VERY USED TO BEING ABLE TO PLACE THE CAR INTO PARK BY PRESSING THE PARK BUTTON. OTHERS WHO DRIVE THE CAR, LIKE PARKING ATTENDANTS OR FRIENDS, WILL NOT SUSPECT A PROBLEM. THE FAILURE OF THE PARK MECHANISM WHEN THIS HAPPENS IS GOING TO CAUSE ACCIDENTS. TOYOTA'S RESPONSE. THE TOYOTA DEALER'S TECHNICIAN SAYS IT IS A BROKEN SPRING IN THE GEARSHIFT MECHANISM, BUT WANTS ME TO PAY FOR IT. TOYOTA'S CUSTOMER CARE CENTER SAYS THEY WILL NOT FIX THIS DESIGN FLAW BECAUSE OF THE AGE AND MILEAGE OF THE VEHICLE, UNLESS I PAY FOR THE $565.00 GEARSHIFT MODULE. ALTHOUGH THE VEHICLE NOW HAS OVER 165,000 MILES, THIS IS A SAFETY ISSUE, AND THE DESIGN SEEMS UNREASONABLY DANGEROUS. I HAVE SEEN OTHER COMPLAINTS ABOUT THIS PROBLEM ON CHAT SITES, AND ANOTHER ON THIS SITE. *TR

CAR SHIFTS TO NEUTRAL UPON SHIFTING TO DRIVE OR REVERSE WHEN STARTING CAR (O MPH) CAR SHIFTS BACK TO NEUTRAL WHEN DRIVING (25 MPH) PROB. SEEMS RELATED TO COLD AMBIENT TEMPERATURE. *TR

A COMBINATION OF 2 ISSUES. FOR SEVERAL MONTHS THE GEAR SHIFT SELECTOR HAS BEEN STICKING IN THE D POSITION INSTEAD OF AUTOMATICALLY RETURNING TO THE N POSITION AS IT SHOULD. IT IS DOCUMENTED BY OTHER PRIUS OWNERS THAT THE DUST COVER INSIDE THE SHIFTER CAN BEGIN TO WARP OVER TIME CAUSING THIS STICKING. HTTP://PRIUSCHAT.COM/THREADS/GEAR-SHIFTER-STICKS.38199/ I THOUGHT THIS WAS JUST A NUISANCE ISSUE UNTIL LAST MONTH AND ON ONE OTHER OCCASION WHERE THE SHIFTER STUCK IN THE D POSITION AND I HADN'T NOTICED AND WHEN I ATTEMPTED TO PUT THE CAR INTO "PARK" BY PRESSING THE SEPARATE P BUTTON THE CAR WOULD NOT GO INTO PARK. IT IS NOW APPARENT THAT THIS IS RELATED TO THE SHIFTER STICKING IN THE D POSITION AND PREVENTING THE CAR FROM GOING INTO PARK. THERE IS ONE REPORT OF A NEAR INCIDENT OF THE CAR DRIVING AWAY WHEN THE DRIVER DIDN'T NOTICE THAT THE CAR FAILED TO GO INTO PARK WHICH IS A CLEAR SAFETY PROBLEM: HTTP://PRIUSCHAT.COM/THREADS/2004-PARK-BUTTON-INTERMITTENT-FAILURE.118257/. *TR

THE DASH GEAR SELECTOR (COMMON TO 2004 - 2009 G2 PRIUS) BEGAN CLICKING WHEN I CHANGED GEARS (R-D-N) I RESEARCHED THE SUBJECT AND LEARNED THAT THIS CAN LEAD TO THE SHIFTER LOCKING IN D OR R, A HAZARDOUS CONDITION. I ALSO LEARNED THAT SOME DIY OWNERS HAVE DISCOVERED A WARPED DUST PLATE IN THE SHIFTER COMPONENT. IT CAUSES THIS PROBLEM. THEIR SOLUTION IS TO REMOVE THE PLATE, TRIM IT, AND REASSEMBLE THE PART. LINK 1 BELOW IS A GOOGLE SEARCH THAT REVEALS THE OTHER TWO LINKS I INCLUDED. NOT ALL OF THE HITS ARE RELEVANT. THE THIRD LINK HAS A VIDEO WITH CLEAR IMAGES OF THE PROBLEM AND THE DIY 'SOLUTION.' HTTPS://WWW.GOOGLE.COM/SEARCH?NUM=100&HL=EN&SAFE=OFF&COMPLETE=0&SITE=WEBHP&Q=PRIUS+%22GEAR+SHIFT%22+CLICK+STICKING&OQ=PRIUS+%22GEAR+SHIFT%22+CLICK+STICKING&GS_L=SERP.3...2446378.2449925.0.2450814.0.0.0.0.0.0.0.0..0.0.LES%3BCPSUGRPQ1..0.0...1.1.IIMLXLK1U2C HTTP://PRIUSCHAT.COM/THREADS/GEAR-SHIFTER-STICKS.38199/PAGE-2 HTTP://PRIUSCHAT.COM/THREADS/HOW-TO-REPLACE-2G-GEARSHIFT-LEVER.65102/ I AM BELIEVE THAT TOYOTA SHOULD BE ASKED TO RECALL THESE CARS TO REPLACE THIS DUST PLATE (OR THE SHIFTER MODULE.) UNFORTUNATELY THE GEAR SHIFT MODULE INCLUDED WITH THE CAR DOES NOT HAVE A LIFETIME CONSISTENT WITH THE 10 YEAR/100,000 MILE WARRANTY ON THE TRACTION BATTERY. IT IS DANGEROUS TO HAVE OWNERS MAKE THIS REPAIR THEMSELVES. THIS COULD BE AVOIDED IF TOYOTA WERE REQUIRED TO DO IT INSTEAD. *TR

TL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. THE CONTACT STATED THAT THE GEAR SHIFTER COULD NOT BE SHIFTED INTO PARK. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE SHIFTER ASSEMBLY NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 120,000 AND THE CURRENT MILEAGE WAS 150,000. *TR

TL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. THE CONTACT STATED THAT THE GEAR SHIFTED FROM DRIVE INTO NEUTRAL SEVERAL TIMES INDEPENDENTLY. THE CONTACT HAD TO HOLD THE GEAR FOR IT TO REMAIN IN DRIVE. THE VEHICLE WAS TAKEN TO THE DEALER WHO PERFORMED A DIAGNOSTIC. THE FAILURE WAS LOCATED AT THE GEAR SHIFTER. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS MADE AWARE OF THE FAILURE, BUT DENIED ASSISTANCE WITH THE REPAIR. THE FAILURE AND THE CURRENT MILEAGE WAS 87,691.

TL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. THE CONTACT STATED THE VEHICLE WOULD SHIFT FROM DRIVE TO NEUTRAL WHEN ACCELERATING. THERE WAS NO WARNING PRIOR TO THE FAILURE. THE VEHICLE WAS NOT INSPECTED TO DETERMINE THE CAUSE OF FAILURE. THE FAILURE MILEAGE WAS UNKNOWN AND THE CURRENT MILEAGE WAS 80,000. THE VIN WAS NOT AVAILABLE.

AUTOMATIC TRANSMISSION CONTROL PROBLEMS. THE TRANSMISSION CONTROL LEVER BECAME WORN. SOMETIMES THE VEHICLE BEGAN TO THE ROLL WITH THIS DEFECT. THE INTERNAL SPRING THAT MOVES THE TRANSMISSION LEVER BACK TO THE PREVIOUS POSITION BECAME WORN AND NOW IT DOESN'T RETURN TO IT'S NORMAL POSITION WHEN PUTTING IT IN REVERSE OR DRIVE. THE SHIFTER LEVER WAS STICKING IN DRIVE OR REVERSE. *TR

TL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. THE CONTACT STATED THAT HE APPLIED THE BRAKES AND DEPRESSED THE SHIFT BUTTON TO SHIFT INTO PARK. AS HE REMOVED HIS FOOT FROM THE BRAKE PEDAL, THE VEHICLE THEN ROLLED FORWARD UNTIL PRESSURE WAS REAPPLIED TO THE BRAKES. THE CONTACT NOTICED THAT THERE WAS A MALFUNCTION IN WHICH THE VEHICLE WAS NOT ACTUALLY SHIFTED INTO PARK AFTER HE ENGAGED THE PARK BUTTON. THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR THE VEHICLE REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 52,700.

TL* THE CONTACT OWNS 2004 TOYOTA PRIUS. THE CONTACT STATED THAT WHILE DRIVING THE GEAR SHIFT BECAME STUCK BETWEEN DRIVE AND NEUTRAL. THE VEHICLE WAS TAKEN TO THE DEALER AND WHERE THE SHIFT LEVER ASSEMBLY WAS REPAIRED. THE MANUFACTURER WAS CONTACTED AND THEY TOLD HIM THEY WERE AWARE OF THE PROBLEM. THE FAILURE MILEAGE WAS 50,500 AND CURRENT MILEAGE WAS 50,656.

VEHICLE SLIPS INTO NEUTRAL AND/OR WILL NOT REVERT BACK TO DRIVE OR REVERSE. THE PROBLEM IS MOST PREVALENT WHEN WEATHER GETS EXTREMELY HOT (99 DEGREES +). THE ONLY WAY I WAS ABLE TO GET MOVING WAS TO PHYSICALLY HOLD MY SHIFTER IN DRIVE POSITION; THE SECOND I LET IT GO, THE VEHICLE AUTOMATICALLY REVERTED BACK TO NEUTRAL. I HAD MY VEHICLE OVER TO A LOCAL TOYOTA DEALERSHIP ABOUT THIS ISSUE. THE TECHNICIAN AT THAT TIME DID ACKNOWLEDGE THIS WAS STRANGE AND WITNESSED THE PROBLEM ON SITE. AFTER DIAGNOSING THE VEHICLE, HE COULD NOT FIND ANYTHING WRONG; I WAS TOLD TO LEAVE THE CAR WITH THE DEALERSHIP FOR A FEW DAYS TO TRY TO REPLICATE THE PROBLEM; NO OTHER MEANS OF TRANSPORTATION WAS OFFERED. I FELT IT WOULD HAVE BEEN AN UNFAIR EXPENSE TO RENT A CAR FOR AN UNDETERMINED AMOUNT OF TIME WHILE TOYOTA DIAGNOSED MY VEHICLE FOR SEVERAL DAYS; THAT SAID, I DID NOT RETURN TO THE SAME DEALERSHIP FOR THIS SPECIFIC MATTER. GIVEN THAT THIS SEEMS TO OCCUR ONLY IN EXTREME HOT WEATHER, YOU WOULD HAVE TO REPLICATE THE SAME ENVIRONMENTAL CONDITIONS TO DIAGNOSE IT. MOREOVER, GIVEN THE SPONTANEITY OF THIS ISSUE IT COULD TAKE A VERY LONG TIME TO DIAGNOSE IT. THIS IS TRULY A SAFETY CONCERN ESPECIALLY WHEN THE VEHICLE IS IN MOTION. I HAVE ATTACHED TWO YOUTUBE VIDEO LINKS THAT DEMONSTRATE THIS PROBLEM OTHER OWNERS ARE EXHIBITING WITH THIS SAME ISSUE THAT DEMONSTRATE THAT I'M NOT JUST AN ISOLATED CONSUMER WITH THIS ISSUE. HTTP://WWW.YOUTUBE.COM/WATCH?V=QFXEEUC761E HTTP://WWW.YOUTUBE.COM/WATCH?V=HWT-HVN5EH8. *TR

2004 TOYOTA PRIUS. CONSUMER ASSERTS THAT VEHICLE ACCIDENT WAS CAUSED BY A COMPUTER MALFUNCTION *TGW THE CONSUMER STATED PRIOR TO THE ACCIDENT, ON ONE OCCASION, THE VEHICLE BOLTED AND JERKED SLIGHTLY AS SHE STOPPED THE VEHICLE. WHEN SHE ATTEMPTED TO TAKE OFF, THE VEHICLE RESPONDED SLUGGISHLY AND THEN ACCELERATED QUICKLY. THE DAY OF THE ACCIDENT, AS THE CONSUMER APPROACHED THE STOP SIGN, THE VEHICLE STARTED BUCKING AND JERKING VIOLENTLY. AFTER SHE PULLED OFF FROM THE STOP SIGN, SHE CRASHED INTO A LARGE SUV. THE CONSUMER STATED SHE SAW THE SUV PASS, SO SHE PURPOSELY WAITED SO SHE COULD MAKE A LEFT TURN, BUT ENDED CAUSING SEVERE DAMAGE TO HER VEHICLE. *JB

WHEN THE CAR IS COLD, THE GEAR SHIFTER WON'T STAY IN FORWARD OR REVERSE WITHOUT BEING HELD DOWN MANUALLY. IT GOES INTO NEUTRAL. *TR

TWICE MY TOYOTA PRIUS HAS "SURGED" UNEXPECTEDLY. I WAS COASTING INTO A PARKING SPACE BOTH TIMES, SO WAS ABLE TO STOMP ON THE BRAKE AND STOP THE CAR. WHEN THE FIRST RECALL WAS ISSUED I KNEW IT WASN'T THE FLOOR MAT. MINE WAS THE ORIGINAL ONE AND WAS FIRMLY ATTACHED. IT DID NOT MOVE AND "ENTRAP" THE PEDAL AND I DID NOT HAVE MY FOOT ON THE GAS WHEN THE SURGES HAPPENED. I DID NOT BOTHER TO REPORT IT AT THE TIME, AS I AM AN OLDER FEMALE AND HAVE BEEN TREATED LIKE AN IDIOT AT THE DEALERSHIP WHEN I SPOKE WITH THE SERVICE PEOPLE. THE CAR HAS BEEN FINE IN EVERY OTHER WAY. I BELIEVE THIS IS A THROTTLE OR COMPUTER/ELECTRONIC PROBLEM AND I BELIEVE THAT THEY KNOW IT. *TR

I HAVE A 2004 PRIUS. THE SHIFT LEVER BEGAN TO STICK IN THE SELECT GEAR POSITION INSTEAD OF GOING BACK TO THE NEUTRAL POSITION. WHEN THIS HAPPENED, THE PARK BUTTON WOULD NOT WORK, CAUSING THE CAR TO MOVE FORWARD IF THE BRAKE WAS RELEASED. I CALLED TOYOTA AND COMPLAINED TWICE. THE GEAR SELECT LEVER NEEDS TO BE MODIFIED SO IT DOESN'T STICK AND THE SOFTWARE CHANGED TO ALLOW THE PARK FUNCTION TO WORK WHEN THE CAR IS STOPPED REGARDLESS OF THE POSITION OF THE GEAR SELECT LEVER. *TR

TL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. WHILE DRIVING IN CLEAR, NORMAL ROAD CONDITIONS AT SPEEDS OF 50 MPH, THE CONTACT ATTEMPTED TO ACCELERATE INTO THE FLOW OF TRAFFIC. SHE THEN APPLIED THE BRAKE PEDAL, HOWEVER THE VEHICLE DID NOT DECREASE IN SPEED. THE BRAKES WOULD NOT ENGAGE AND THE REAR OF THE VEHICLE SPUN OUT OF CONTROL OR FISH TAILED. THE CONTACT COULD NOT MAINTAIN CONTROL OF THE VEHICLE AND CRASHED INTO A GUARD RAIL AND A NEARBY TREE. THE VEHICLE WAS DESTROYED. THE VIN WAS NOT AVAILABLE AT THE TIME OF THE COMPLAINT. THE CURRENT AND FAILURE MILEAGES WERE 100,000. UPDATED EVOQ. 05/27/10

2ND OCCURRENCE OF TOYOTA PRIUS ACCELERATION. WHILE WIFE LEAVING DAUGHTERS SCHOOL, CAR ACCELERATED (PEDAL OFF THE ACCELERATOR!), SHE JAMMED ON BRAKES, BUT WAS CLOSE IN PROVOKING AN ACCIDENT ON MAIN STREET. THIS IS THE SECOND OCCURRENCE. FIRST TIME, SHE HIT A TAXI WHILE STOPPED IN A RED LIGHT. ACCIDENT WAS REPORTED BY POLICE (NO INJURIES). FIRST TIME TOOK CAR INTO THE DEALER (NO APPARENT PROBLEMS). PLANNING ON TAKING CAR AGAIN TO DEALER TOMORROW.!

WHILE DRIVING PRIUS ON MAJOR HIGHWAY IN DFW METROPLEX DURING EVENING RUSH HOUR THE WARNING LIGHT CAME ON, THEN A COUPLE SECONDS LATER, ENTIRE DASH BOARD INFORMATION SCREEN AND ALL WARNING LIGHTS FLASHED. CAR ENGINE CONTINUED TO RUN, AND WOULD NOT TURN OFF, BUT NO POWER WAS AVAILABLE TO STEERING OR BRAKES. THIS PROBLEM OCCURRED AT THE APEX OF A BRIDGE. HOWEVER, WAS ABLE TO COAST THE CAR INTO THE MEDIAN BETWEEN THE MERGE RAMP OF THE MAJOR HIGHWAY AND THE INTERSTATE. VERY DANGEROUS SITUATION IF IT HAD OCCURRED BEFORE APEX OF THE BRIDGE. )CALLED THE DEALERSHIP, WHO IN TURN, CALLED A TOW TRUCK. HAD TO BASICALLY PLAY WITH POWER BUTTON, BRAKE, AND GEAR SHIFT TO GET IT INTO NEUTRAL SO THE CAR COULD BE LOADED ONTO THE TOW TRUCK. TOOK DEALER THREE DAYS TO DIAGNOSE THE PROBLEM. IT WAS BLAMED ON A SHORT IN AUXILIARY BATTERY. HOWEVER, IT SEEMED TO BE WORKING OKAY. THIS WAS THE THIRD TIME OCCURRENCE SUCH AS THIS HAPPENED TO THIS CAR, AS WELL AS A NON-FUNCTIONING DRIVER INFORMATION SCREEN, THAT IF THE CAR WAS HOT INSIDE THEN INFORMATION SCREEN WORKED, IF NO, THEN THE SCREEN STATED NO CONNECTION TO AIR CONDITIONING , WHICH OCCURRED SINCE FIRST TIME THE SHUT DOWN HAPPENED. THOUGHT THIS PROBLEM WAS SUPPOSED TO BE FIXED WITH THE SOFTWARE UPGRADE THAT THEY INSTALLED AFTER THE LAST OCCURRENCE. IT APPEARED THAT THIS DEFECT HAPPENED EVERY 18,000 MILES . NOW THERE IS 79,000 MILES ON THE CAR.*AK

I WAS ENTERING A MAJOR HIGHWAY FROM A PARKING LOT WHEN THE ENGINE SUDDENLY ACCELERATED AT FULL SPEED. VISIBILITY WAS GOOD. THERE WAS A SMALL POTHOLE SO I DID TOUCH THE ACCELERATOR. NEXT I WAS IN THE MIDDLE OF THE HIGHWAY & HIT BY A CAR GOING 65MPH. I DO NOT THINK I HIT THE ACCELERATOR RATHER THAN THE BRAKE ALTHOUGH THAT WAS THE ONLY EXPLANATION AT THE TIME. *TR