Problems · by component
2009 Toyota Sienna electrical system problems
28 owner complaints to NHTSA about the 2009 Toyota Sienna cite electrical system, 14% of all 207 complaints for this model year.
Complaints
28
14% of all complaints
Crashes
0
Reported by owners
Fires
2
Reported by owners
Injuries
0
Reported by owners
What owners say about the electrical system
Verbatim from NHTSA complaints, newest first
“Odometer Fraud. The contact owned a 2009 Toyota Sienna. The contact discovered a mileage discrepancy after the vehicle was sold. The vehicle was a private sale. At the time of the sale, the vehicle mileage was 253,000. The contact posted the sale on Craigslist, and several days after the sale, the contact noticed that the vehicle was posted back on Craigslist for sale. The contact discovered that the new owner had rolled back the mileage on the odometer to 126,000. The ad on Craigslist was showing the fraudulent mileage.”
“Vehicle has an unknown electrical draw this draining the battery every night, making vehicle unusable even in emergency. Mechanic has confirmed draw but is unable to find short.”
“The rear passenger side sliding door cable and motor assembly on the Toyota Sienna failed, causing the door to become completely inoperative (cannot open nor close) and the broken cable nearly cut my wife as it broke under tension and came flying out toward her as she was trying to close the door normally. The cable and motor had been replaced in 2015. The cable and motor on the rear driver side sliding door was also replaced in 2013 and 2017. The problem was confirmed by Woburn Toyota (dealer) and reported to the manufacturer. The manufacturer has confirmed the failure and safety defect, but refuses to provide repairs. No warnings were provided, no recall was issued, and customers were not notified of internal safety bulletin POL12-02 issued by Toyota.”
“USUALLY MOVING BETWEEN 25- 45 MPH. ON ANY ROAD. THE VSC, TRACTION CONTROL, AND CHECK ENGINE LIGHT COME ON. FOR NO REASON THIS HAPPENS QUITE OFTEN DAILY. I HAVE LOOKED INTI THIS AND NUMEROUS, NUMEROUS PEOPLE EXPERIENCE TGE SAME PROBLEM”
“TO WHOM IT MAY CONCERN: REGARDING CUSTOMER SUPPORT PROGRAM (ZTS): WARRANTY ENHANCEMENT FOR REAR SLIDING DOOR LATCH ASSEMBLIES ON CERTAIN 2004-2010MY SIENNA VEHICLES AND POWER SLIDING DOOR CABLE ASSEMBLY ON CERTAIN 2004-2007MY SIENNA VEHICLES. I AM HERE TO TELL YOU THAT MY 2009 SIENNA SHOULD HAVE BEEN COVERED BY THIS WARRANTY EXTENSION. A FEW YEARS AGO OUR CABLE SNAPPED ON THE DRIVER SIDE DOOR. I WAS TOLD BY MY DEALER AND TOYOTA CUSTOMER SERVICE THAT MY MODEL YEAR WAS NOT COVERED BY THE ABLE ASSEMBLY ISSUE. I WAS QUOTED APPROXIMATELY $2K FOR THIS REPAIR. WELL, WITH THE CRAZINESS OF THE PANDEMIC, I DECIDED TO DO THIS REPAIR MYSELF. I PURCHASED THE ATTACHED PARTS LIST IN THE SCAN MYSELF. AS YOU CAN SEE FROM THE IMAGES: THERE ARE SCREWS MISSING AROUND THE PULLEY SYSTEM, THE CABLE CRACKED THE HOUSING AND PROCEEDED TO TEAR UP THE SOUND INSULATION. THANKFULLY THE CABLE DID NOT HARM ANY OTHER KEY AREAS OF THE DOOR. THIS BLATANT DISREGARD FOR THE 2009 MODEL YEAR IS EXTREMELY DISAPPOINTING. I AM SURE THERE ARE OTHER OWNERS WITH THE SAME ISSUE.”
“THE REAR PASSENGER DOOR RECENTLY BEGAN TO OPEN ON ITS OWN RANDOMLY WHEN DRIVING, SOMETHING MAY BE WRONG WITH THE LATCH, IT IS NOT HOOKING/ENGAGING TO THE CAR FRAME. MY WIFE MADE A LEFT TURN YESTERDAY AND THE PASSENGER REAR DOOR SLID OPEN, LUCKILY MY 7 YEAR OLD SON WAS BUCKLED IN. ALSO, THE CABLES TO THE DRIVER SIDE REAR SLIDING DOORS POPPED OFF ABOUT A YEAR AGO, BELIEVE IT WAS DUE TO RUST/CORROSION...”
Showing 6 of 28 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.