2004 TOYOTA SIENNA Complaints and Recall Information
The 2004 TOYOTA SIENNA has 11 complaints and 5 recalls filed with NHTSA. Owners most frequently report unintended acceleration where the vehicle accelerates without the accelerator pedal being fully pressed. There are also multiple reports of the traction control system malfunctioning, causing unintended braking and loss of power during normal driving conditions.
- Unintended acceleration. The vehicle accelerates suddenly up to speeds around 90 mph while the driver attempts to brake, with the accelerator pedal not fully depressed.
- Brake unresponsiveness during acceleration. Drivers report brakes failing to slow the vehicle despite repeated pressing during unintended acceleration events.
- Traction control engagement in normal conditions. TCS activates while turning or driving straight on dry roads and at legal speeds, causing braking and affecting steering.
- Automatic braking on its own. The vehicle frequently applies brakes without driver input, including at highway speeds, sometimes combined with fuel cutoff and warning lights.
- Loss of engine power during TCS activation. The vehicle cuts engine power when traction control engages, often accompanied by beeping sounds and dashboard alerts.
- Multiple warning lights. VSC, check engine, and traction control off lights flash in conjunction with braking and power loss problems.
- Safety risks due to sudden braking. Unintended braking creates hazards such as near rear-end collisions behind the Sienna.
- Rear hatch door failure. Rear liftgate door closes unexpectedly and fails to remain open, requiring strut replacement which was delayed due to parts availability.
The vehicle has five recalls affecting various systems including engine components, labels, structural spare tire carriers, transmission shift lock, and spare tire carriers in high-corrosion areas. These recalls address potential risks related to steering, vehicle overloading, spare tire detachment, unintended vehicle movement, and corrosion-related structural failures.
- Engine and crankshaft pulley. (NHTSA 11V539000) About 420,326 vehicles have inadequate adhesive in the crankshaft pulley, risking power steering belt detachment that increases steering effort and crash risk. Dealers will replace faulty pulleys free of charge.
- Load carrying capacity labels. (NHTSA 10V036000) Approximately 153,418 vehicles lack correct tire load capacity labels, risking vehicle overloading and potential crashes. Corrected labels are sent to owners or installed by dealers free of charge.
- Spare tire carrier corrosion. (NHTSA 10V160000 and 14V273000) Approximately 1,019,520 vehicles in certain states are at risk of spare tire carriers corroding due to road salt, which could cause the spare tire to detach and increase crash risk. Interim fixes involve relocating the spare tire inside the vehicle, followed by carrier replacement when parts are available.
- Shift lock solenoid. (NHTSA 13V429000) Over 614,722 Siennas have a defect that allows the shift lever to be moved out of Park without depressing the brake, increasing the risk of rollaway or backover crashes. Dealers will replace the solenoid at no cost when parts become available.
Owners dealing with repeated unintended acceleration, malfunctioning traction control, or unresolved recall repairs of safety-related components may have rights under their state’s lemon law. Consulting with a consumer protection attorney could provide guidance on options for resolution.
2004 TOYOTA SIENNA Summary
2004
Model Year
11
Total Complaints
5
Total Recalls
2207986
Vehicles Affected
Recalls
2004 TOYOTA SIENNA
419520 vehicles affected
TIRES:TEMPORARY/EMERGENCY SPARE TIRE
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2004-2011 Sienna vehicles originally sold in, or currently registered in, Connecticut, Delaware, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin and the District of Columbia. The affected vehicles have a spare tire carrier assembly mounted under the vehicle whose attachment cable may corrode due to high concentrations of road salt splashing onto the spare tire carrier.
Risk: If the carrier cable is corroded due to road salt, the spare tire may separate from the vehicle, increasing the risk of a crash.
2004 TOYOTA SIENNA
614722 vehicles affected
POWER TRAIN:AUTOMATIC TRANSMISSION
Toyota is recalling certain model year 2004-2005 Sienna vehicles manufactured January 10, 2003, through August 10, 2005; and model year 2007-2009 Sienna vehicles manufactured February 20, 2007, through December 12, 2008. In the affected vehicles, due to a problem within the shift lock solenoid, there is a possibility that the shift lever could be moved out of Park position without depressing the brake pedal.
Risk: If the shift lever is moved out of the Park position without the brake applied, the transmission will either engage a drive gear or Neutral, increasing the risk of a backover or roll away crash.
2004 TOYOTA SIENNA
420326 vehicles affected
ENGINE AND ENGINE COOLING
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2004 AVALON VEHICLES; 2004 AND 2005 CAMRY, CAMRY SOLARA, HIGHLANDER, AND SIENNA VEHICLES, 2006 HIGHLANDER HYBRID; 2004 AND 2005 LEXUS ES330 AND RX330; AND 2006 LEXUS RX400H VEHICLES MANUFACTURED FROM JUNE 1, 2004 THROUGH MARCH 31, 2005, EQUIPPED WITH THE 1MZ-FE OR 3MZ-FE ENGINE. THE AMOUNT OF ADHESIVE AGENT APPLIED BETWEEN THE OUTER RING AND THE TORSIONAL RUBBER DAMPER (INNER RING) IN THE CRANKSHAFT PULLEY MAY BE INADEQUATE. IF THE ADHESIVE IS INSUFFICIENT, THERE IS A POSSIBILITY THAT THE OUTER RING MAY BECOME MISALIGNED AND IT MAY NOT PROPERLY ROTATE WITH THE INNER RING, CAUSING NOISE AND/OR ILLUMINATION OF THE BATTERY DISCHARGE INDICATOR LIGHT.
Risk: IN SOME CASES, THE BELT FOR THE POWER STEERING PUMP MAY BECOME DETACHED FROM THE PULLEY WHICH COULD RESULT IN A LOSS OF POWER STEERING AND A SUDDEN INCREASE IN STEERING EFFORT, INCREASING THE RISK OF A CRASH.
2004 TOYOTA SIENNA
600000 vehicles affected
STRUCTURE
TOYOTA IS RECALLING CERTAIN MODEL YEAR 1998 THROUGH 2010 SIENNA PASSENGER VEHICLES MANUFACTURED BETWEEN AUGUST 7, 1997 AND JANUARY 4, 2010, CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, KENTUCKY, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON DISTRICT OF COLUMBIA, VIRGINIA, WEST VIRGINIA, AND WISCONSIN. THE SUBJECT VEHICLES ARE EQUIPPED WITH THE SPARE TIRE STOWED UNDER THE VEHICLE. IF THE VEHICLE IS OPERATED IN THE COLD CLIMATE REGIONS OF THE UNITED STATES WHERE ROAD SALT IS FREQUENTLY USED, WATER SPLASHED BACKWARDS WITH HIGH CONCENTRATIONS OF ROAD SALT CAN REACH THE SPARE TIRE CARRIER AND CORRODE THE SPARE TIRE CARRIER ASSEMBLY CABLE.
Risk: THE CABLE MAY BREAK DUE TO EXCESSIVE CORROSION AND THE SPARE TIRE MAY SEPARATE FROM THE VEHICLE, POSSIBLY RESULTING IN A VEHICLE CRASH.
2004 TOYOTA SIENNA
153418 vehicles affected
EQUIPMENT:OTHER:LABELS
SOUTHEAST TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2011 PASSENGER VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SOLD WITHOUT THE REQUISITE LOAD CARRYING CAPACITY MODIFICATION LABELS.
Risk: A DRIVER MAY OVERLOAD A VEHICLE WHICH MAY INCREASE THE RISK OF A CRASH.
Complaints
2004 TOYOTA SIENNA
ID: 2117995STRUCTURE
The contact owns a 2004 Toyota Sienna. The contact stated that while the liftgate door was opened, the door had erroneously closed and failed to remain opened. The vehicle was taken to the local dealer who diagnosed that the rear hatch door struts were faulty and needed to be replaced. The vehicle was not repaired. The contact was informed that the VIN was included in NHTSA Campaign Number: 08V244000 (STRUCTURE); but parts were on back order. The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 150,000.
2004 TOYOTA SIENNA
ID: 2090094STEERING
The Traction Control System commonly malfunctions while making turns on curving road sections. I will lose power through turns as the TCS light blinks on my dashboard and makes a beeping sound. On some occasions the brakes will automatically engage in the tire that the car perceives as experiencing slippage. This problem is continuously worsening and commonly endangers me and my passengers, as the car engages brakes or cuts power to the engine at unexpected and in opportune times.
2004 TOYOTA SIENNA
ID: 2090093FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The Traction Control System commonly malfunctions while making turns on curving road sections. I will lose power through turns as the TCS light blinks on my dashboard and makes a beeping sound. On some occasions the brakes will automatically engage in the tire that the car perceives as experiencing slippage. This problem is continuously worsening and commonly endangers me and my passengers, as the car engages brakes or cuts power to the engine at unexpected and in opportune times.
2004 TOYOTA SIENNA
ID: 2090092SERVICE BRAKES
The Traction Control System commonly malfunctions while making turns on curving road sections. I will lose power through turns as the TCS light blinks on my dashboard and makes a beeping sound. On some occasions the brakes will automatically engage in the tire that the car perceives as experiencing slippage. This problem is continuously worsening and commonly endangers me and my passengers, as the car engages brakes or cuts power to the engine at unexpected and in opportune times.
2004 TOYOTA SIENNA
ID: 2074847VEHICLE SPEED CONTROL
Vehicle often applies brakes on its own . At first it was only in turns . However now it does it when driving straight on the the freeway or just down the street at 45mph. I have fixed my alignment ,new tires, all of the front suspension and nothing prevents the car from trying to brake for me. it is a safety feature that is not safe at all. a car slamming on your brakes at any speed is dangerous in addition to that it seems to cut off your fuel , leaving you unable to accelerate until its done beeping which can take a long time. the vsc , chenk engine and trac off flash there is no crash to report I have been lucky so far
2004 TOYOTA SIENNA
ID: 2074846STEERING
Vehicle often applies brakes on its own . At first it was only in turns . However now it does it when driving straight on the the freeway or just down the street at 45mph. I have fixed my alignment ,new tires, all of the front suspension and nothing prevents the car from trying to brake for me. it is a safety feature that is not safe at all. a car slamming on your brakes at any speed is dangerous in addition to that it seems to cut off your fuel , leaving you unable to accelerate until its done beeping which can take a long time. the vsc , chenk engine and trac off flash there is no crash to report I have been lucky so far
2004 TOYOTA SIENNA
ID: 2074845SERVICE BRAKES
Vehicle often applies brakes on its own . At first it was only in turns . However now it does it when driving straight on the the freeway or just down the street at 45mph. I have fixed my alignment ,new tires, all of the front suspension and nothing prevents the car from trying to brake for me. it is a safety feature that is not safe at all. a car slamming on your brakes at any speed is dangerous in addition to that it seems to cut off your fuel , leaving you unable to accelerate until its done beeping which can take a long time. the vsc , chenk engine and trac off flash there is no crash to report I have been lucky so far
2004 TOYOTA SIENNA
ID: 2063893STEERING
While driving typically around 35 mph and either left or right turn the vehicle traction control engages and the van brakes and steering is affected. The roads have always been dry and in each instance the speed of the van was at or below the speed limit - traction was never lost and yet the traction control engaged as if we were in a skid. This occurred at least 12 times while driving to and from a day trip in the mountains (windy road). It has also happened multiple times at around 50 mph while turning left on a nearby flat freeway. An independent service shop has not been able to replicate the problem. The safety of the driver and passengers were at risk when it occurred on the freeway as a driver behind us got close to rear ending the van while it was in its brake mode.
2004 TOYOTA SIENNA
ID: 2054322VEHICLE SPEED CONTROL
Was driving on highway at 60-65 mph. The car continued to accelerate. Pressed on brake and wasn't slowing the vehicle. The driver was weaving in and out of cars as the van started to creek up to 92 mph. The driver and passengers thought they were going to crash and possible die. The driver tried the brake multiple times and nothing. The driver said the accelerator pedal wasn't pressed all the way down to the floor. It was half way and driver had to go down and pull up on the pedal while driving. The van then started to slow and driver was able to pull over to have the van evaluated . The throttle body was reached and cleaned of carbon because it said that this may have been part of the issue. Never has this van taken off like this. The throttle body cable wasnt loose or disconnected either. So far we havent been able to recreate but 3 people could have been killed.
2004 TOYOTA SIENNA
ID: 2054321POWER TRAIN
Was driving on highway at 60-65 mph. The car continued to accelerate. Pressed on brake and wasn't slowing the vehicle. The driver was weaving in and out of cars as the van started to creek up to 92 mph. The driver and passengers thought they were going to crash and possible die. The driver tried the brake multiple times and nothing. The driver said the accelerator pedal wasn't pressed all the way down to the floor. It was half way and driver had to go down and pull up on the pedal while driving. The van then started to slow and driver was able to pull over to have the van evaluated . The throttle body was reached and cleaned of carbon because it said that this may have been part of the issue. Never has this van taken off like this. The throttle body cable wasnt loose or disconnected either. So far we havent been able to recreate but 3 people could have been killed.
2004 TOYOTA SIENNA
ID: 2054320FUEL/PROPULSION SYSTEM
Was driving on highway at 60-65 mph. The car continued to accelerate. Pressed on brake and wasn't slowing the vehicle. The driver was weaving in and out of cars as the van started to creek up to 92 mph. The driver and passengers thought they were going to crash and possible die. The driver tried the brake multiple times and nothing. The driver said the accelerator pedal wasn't pressed all the way down to the floor. It was half way and driver had to go down and pull up on the pedal while driving. The van then started to slow and driver was able to pull over to have the van evaluated . The throttle body was reached and cleaned of carbon because it said that this may have been part of the issue. Never has this van taken off like this. The throttle body cable wasnt loose or disconnected either. So far we havent been able to recreate but 3 people could have been killed.