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full bulletin at NHTSA ↗2009 Toyota Sienna electrical problems
severe 26 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
26
Recalls
0
Avg fix
$850
2fires
When does it fail?
Of the 26 electrical complaints filed for the 2009 Toyota Sienna, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 26 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA electrical complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone. ?Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ?Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
full bulletin at NHTSA ↗TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated
full bulletin at NHTSA ↗TT: Some customers may encounter Bluetooth® connectivity concerns such as: ? Difficulty to pair the phone. ? Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ? Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s phone. Make sure to inquire with the customer if the connectivity concerns occurred after receiving an operating system update on their phone, or if they have restored their phone data/settings recently.
full bulletin at NHTSA ↗TSB: REVISION NOTICE November 22, 2017 Rev1: ? Applicability has been updated to include 2014 ? 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. In the event that a Toyota vehicle becomes submerged in water, many components may be physically damaged. Electrical and electronic components, including wiring harnesses, are particularly susceptible to corrosion and subsequent malfunction. Although any flooding can be damaging, salt water flooding elevates the potential for abnormal conditions and may increase risks due to its highly corrosive and conductive nature. Salt residue also continues to corrode and remain conductive even after a vehicle dries.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The overwhelming complaint is power sliding door cable failure. Owners describe the cables snapping during routine opening, leaving doors jammed open or closed. One owner's cable snapped with enough force to nearly cut their daughter's neck; another's whipped around and nearly struck a child in the head. The cables exhibit visible corrosion and fraying before failure. Once broken, the door is electrically inoperable and often physically stuck—trapping occupants or forcing them to exit through the front doors only. Repair costs run $1,100 to $2,400 per door.
Toyota issued a warranty extension covering certain 2004–2010 models, but 2009 owners report being denied coverage. The company issued an internal safety bulletin (POL12-02) but has declined to fund repairs in most cases, even after acknowledging the defect. Some owners are on their second or third cable replacement within 7 years.
A handful of narratives report separate but serious issues: engine compartment fire (at least two instances, both total-loss), sudden stalling with loss of power steering and braking during driving (undiagnosed), and mysterious overnight battery drain. One complaint involves rear door latches failing to engage, allowing the door to open unintentionally while driving.
Same Toyota Sienna electrical reports on nearby years: 2006 · 2007 · 2008 · 2010 · 2011
Failure modes owners describe
Power sliding door cable snapping
The cables that operate the power sliding doors snap under normal use, rendering the doors inoperable. Owners report the cable breaks during routine opening attempts or while parked. The failure is often attributed to corrosion and material degradation of the plastic coating, exposing the cable to rust. When the cable snaps under tension while opening, it can whip with enough force to create a serious safety hazard to occupants and bystanders.
When: Failures reported between 76,000 miles through unspecified mileage; some occur after previous repairs by Toyota within 2-7 years
Symptoms owners cite: Cable audibly snaps or breaks; Door becomes inoperable—will not open or close electronically; Cable may be visibly corroded or frayed; Door may jam in open or closed position; Cable whips with force when snapping, creating injury risk; Door operates intermittently before complete failure
Repairs/costs cited: Toyota dealerships quote $1,100 to $2,400 for cable and motor assembly replacement, with some dealers adding $300 for diagnosis. Toyota has issued a Customer Support Program (CSP) covering 2004-2007 models and a warranty enhancement covering 2004-2010 models for rear sliding door latch assemblies and power sliding door cable assemblies, but 2009 model year owners report being denied coverage despite the vehicle falling within the model year range.
Recalls/TSBs owners mention: Toyota issued Customer Support Program (CSP) covering cable replacement for 2004-2007 models and a warranty enhancement for 2004-2010 models. However, 2009 owners report being told they are not covered. Toyota has acknowledged failures and issued internal safety bulletin POL12-02, but refused to provide repairs in at least one case. Corporate Toyota has offered minimal bill reduction in some instances.
Rear sliding door latch failure and door opening unintentionally
The rear sliding door latch mechanism fails to engage or hold properly, causing the door to open unintentionally while driving. The latch does not hook or engage to the car frame. This creates an egress hazard for child occupants and an uncontrolled door opening risk during driving.
When: Occurring during normal driving, reported during turns and while parked
Symptoms owners cite: Door opens on its own while driving; Latch fails to engage to the car frame; Door slides open without input from driver; Door may pop open multiple times
Repairs/costs cited: No repair costs cited in narratives for latch failure specifically
Engine compartment fire
The vehicle caught fire in the engine compartment while being driven and again while parked. In one case, fire started under the hood during active driving on a town road; in another, the electric door panel area caught fire while parked. Both fires resulted in total destruction of the vehicle.
When: One at unspecified mileage during active driving; another at 40,000 miles while parked
Symptoms owners cite: Smoke detected underneath the engine area or from door panel; Fire visible under the hood or in door panel area; Fire spread rapidly across front of vehicle
Repairs/costs cited: Vehicles were destroyed by fire; no repair attempted by owners
Recalls/TSBs owners mention: Toyota dispatched an investigator but provided zero communication follow-up to the owner regarding findings
Intermittent stalling with loss of power steering and power braking
The vehicle stalls without warning during active driving, causing a complete loss of power steering and power braking function. This occurred on both a residential street and a busier street (including on an uphill grade). The vehicle required emergency braking to stop. No cause was identified during service, and the owner was instructed to resume driving without repair.
When: Unspecified mileage; two separate incidents during driving
Symptoms owners cite: Vehicle stalls suddenly during active driving; Power steering becomes inoperative; Power braking becomes inoperative; No warning before stall event
Repairs/costs cited: No diagnosis or repair completed; dealer was unable to identify cause
Parasitic electrical draw draining battery overnight
An unknown electrical drain in the vehicle completely discharges the battery overnight, rendering the vehicle unusable even for emergencies. A mechanic confirmed the presence of a parasitic draw but was unable to locate the source.
When: Unspecified mileage
Symptoms owners cite: Battery completely drained overnight; Vehicle will not start after sitting; Persistent drain with vehicle off
Repairs/costs cited: Mechanic unable to locate source of electrical draw
Antenna plastic base cracking and cell charger malfunction
The plastic base for the antenna broke, reportedly due to heat exposure in a tropical climate. Additionally, the cell phone charger mounted in the vehicle malfunctions and loses position easily, despite minimal use.
When: Unspecified mileage; owner notes tropical island climate with high heat
Symptoms owners cite: Antenna plastic base cracks; Cell charger stops working; Cell charger moves out of position easily; Rear door rubber melts
Synthesized from 26 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 5 most recent
Power sliding door cable failed/faulty. Risk of injury and safety. Toyota unwilling to repair under warranty. Sliding door inoperable - can't exit vehicle on side where door cable broke. This is a widely known and widely experienced safety defect across 6 years of Toyota sienna that should be the subject of a federal recall. *js
2009 Toyota sienna, drivers side rear passenger door cable broke and initially left the door in the open position in a mall parking lot. Once closed manually to travel home, the door was left jammed in the closed position until we arrived home. I had to cut the cable assembly out to simply remove the safety hazard for my 3 young daughters. Attempted to have the door repaired at a local shop which…
Power doors not working will not open or close on auto all the time or on manual now drivers side cables have broke. *tr
Left automatic sliding door cable snapped after the right door cable snapped two months prior right after warranty expired. Toyota fixed the first problem but will not fix the other door and wants $2000 to fix it. The car is only 5 years old and Toyota knows this is an issue but will not help. This is not right. My child was seat belted in when the cable snapped and it whipped around and almost…
The rubber from back door melted since I live in tropical island and there is a lot of heat. The plastic base for the antena broke, I gues the heat cracked the plastic base, and the cell charger doesn't work, though I have hardly used it. I seems like it gets out of position easily. Overall, the plastic features are giving me a hard time. I love my sienna and it's in very good condition, but…
Had electrical trouble with your 2009 Toyota Sienna?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2009 Toyota Sienna?
It's a meaningful issue. 26 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Across the 21 complaints that reported odometer mileage, most electrical failures cluster between 80,000 and 123,500 miles, with the median around 103,000. A quarter of owners report trouble before 80,000; a quarter make it past 123,500. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2009/Toyota/Sienna.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.