Owners have filed 201 complaints
about the 2017 Toyota Sienna with NHTSA between 2017 and 2026.
The largest single group is the transmission & drivetrain.
Across this model's run it ranks 6 of 23 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 21
Against the median year of the Toyota Sienna. 50 means typical for this
model; 100 means roughly double.
Severity — 100
21.4% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — 100
68% of failures with a mileage on record happened under
36,000 miles, against a national rate of
29%.
NHTSA files every complaint against a named sub-assembly, not just a
system. This is the difference between knowing it was "the engine" and
knowing which part of it — the list to hand a mechanic.
Body
1047.6%
Latch
314.3%
Sun/Moon Roof Assembly
29.5%
Windshield
29.5%
Rearview System Braking
14.8%
Warnings
14.8%
Software
14.8%
Heater Core
14.8%
When it fails
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
109.3%
1,000 – 9,999 miles
2018.7%
10,000 – 24,999 miles
2927.1%
25,000 – 49,999 miles
2927.1%
50,000 – 74,999 miles
1211.2%
75,000 – 99,999 miles
32.8%
100,000 – 149,999 miles
32.8%
150,000+ miles
10.9%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Jan 2017peak 8Jul 2026
Recalls on the 2017 Toyota Sienna
A complaint is one owner's allegation. A recall is the point at which
the manufacturer or a regulator agreed the defect is real and dangerous
enough to fix for free — however old the car is.
Canada — Transport Canada
Canada runs its own recall programme, and its campaigns do not
always mirror the American ones.
Recall 202172355,683 units in Canada
Electrical
Issue: This recall is for certain block heater kits installed on certain vehicles or sold as accessories at Toyota or Lexus dealerships. On certain vehicles, the engine block heater cable may not have enough heat protection and could be damaged by high temperatures. If this happens, the cable could short circuit while plugged in, and cause the wiring to overheat or melt. Note: This recall only affects the following block heater/cord part numbers: C014003034 PK5A408J09 PU14000904 C014003151 PK5A408J13 PU14000905 C014000885 PK5A489J11 PU14000907 C014000888 PK5A489J22 PU14000909 C014000907 PK5A410H00 PU14000911 C014100904 PU14000900 PU14000913 C014100907 PU14000901 PU14003571 C014100911 PU14000902 PK5A489J14 PK5A408J05 PU14000903 Safety Risk: Engine block heater wiring that overheats or melts could create the risk of a fire. Corrective Actions: Toyota recommends that you should stop using the engine block heater immediately. Toyota will notify owners by mail and instruct you to take your vehicle to a dealer to disable the engine block heater. For some vehicles, the corrective actions for this recall are under development. For others, a new engine block heater cannot be installed, and the owner will receive a refund of the purchase price of the engine block heater.
Recall 2020514126,597 units in Canada
Fuel System
Issue: On certain vehicles, the low-pressure fuel pump could fail. If this happens, then engine may run rough or may not start and the check engine light may turn on. This could also result in a sudden loss of engine power while driving. Note: This recall is an expansion of recalls SRC R95/SRC R96 and SRC RA2/SRC RA3 (Transport Canada Recall Numbers 2020-005 and 2020-088). Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct you to take your vehicle to a dealer to replace the fuel pump.
Recall 2020088111,835 units in Canada
Fuel System
Issue: On certain vehicles, the low-pressure fuel pump could fail. If this happens, then engine may run rough or may not start and the check engine light may turn on. This could also result in a sudden loss of engine power while driving. Note: This recall is an expansion of recall SRC R95/SRC R96 (Transport Canada Recall No. 2020-005) Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct you to take your vehicle to a dealer to replace the fuel pump.
Recall 201935547 units in Canada
Steering
Issue: On certain vans converted to a mobility vehicle by BraunAbility, the steering shaft extension could break. If this happens, there would be a sudden loss of steering control. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a BraunAbility dealer to replace the steering shaft extension with an improved part.
Recall 201931725 units in Canada
Brakes
Issue: On certain vans converted to a rear-entry mobility vehicle by BraunAbility, the fittings for the brake line extensions may be incorrect. This could cause a brake fluid leak that may result in reducing braking. Note: This problem affects conversions that were built between January 9, 2018, and May 20, 2019. Safety Risk: Reduced braking could cause extended stopping distances and increase the risk of a crash. Corrective Actions: The company will notify owners by mail and instruct them to take their vehicle to a BraunAbility dealer to inspect the brake line connections. If necessary, an adapter fitting will be installed and the brake system will be bled.
Recall 2018155220 units in Canada
Brakes
On certain vehicles, an oil passage in the rotor of the vacuum pump may not have been machined properly and could result in oil not being distributed throughout the pump. This could lead to the illumination of a warning light and message, an audible tone, and a sudden loss of braking assist, which could increase stopping distances and increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace the vacuum pump with a new one.
Recall 201736339,189 units in Canada
Electrical
On certain vehicles, the electrical power cords of some dealer installed block heaters may have been improperly manufactured, causing the wires to contact each other, resulting in a short circuit. A short circuit could lead to a fire which would increase the risk of injury and/or damage to property. Correction: For vehicles where the subject block heater was approved for installation, the dealer will replace the block heater assembly with a new one of an improved design. For vehicles where the subject block heater was not approved for installation, dealers will remove the block heater assembly. In the interim, until the remedy can be performed, dealers will cut the plug end from the block heater cord to disable the block heater's operation.
Reports where the owner recorded a crash, a fire, an injury or a death.
at 216,000 milesJunction City, KSCrash1 injured
AIR BAGS
The contact owned a 2017 Toyota Sienna. The contact stated that while driving alone at 70 MPH and attempting not to hit tire tread in the road, she crashed into the median, her vehicle drove into a ditch, the vehicle spun twice, and then crashed head-on into a tree where it came to a stop. The driver's side air bags did not deploy, but the passenger air bags deployed when there was no occupant seated. The contact sustained neck and back injuries, and medical attention was sought via the hospital. A police report was filed, but it was not available at this time. The vehicle was towed to a tow lot. The manufacturer was not notified of the failure. The failure mileage was 216,000.
NHTSA complaint #11661794 — an unverified report by a vehicle owner.
Saint John, INCrash1 injured
AIR BAGS
On [XXX], I was involved in a car accident in Saint John, Indiana, while driving my 2017 Toyota Sienna. The vehicle was hit on the passenger side, but none of the airbags deployed. As a result, I sustained serious injuries including cervical disc herniations, nerve compression, and ongoing pain. Since then, I’ve been unable to perform daily tasks, drive, care for my children, or work as I did before. I confirmed with Toyota that my vehicle has no active recalls, including for airbags, yet this failure occurred. There were no warning lights or messages prior to the incident. The airbag system has not yet been inspected or confirmed defective by a service center, but I am willing to make the vehicle available for inspection if needed. I am requesting that NHTSA investigate this failure, as it may represent a serious safety defect that could affect others driving the same model. I can provide supporting documentation, including medical records, police report, and photos of the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11660531 — an unverified report by a vehicle owner.
Stanley, NCCrash1 injured
POWER TRAIN
Parked the car on an incline (our driveway) like we have a 100 times before. Went inside to unload groceries. Came back to the car and from the passenger seat reached over to press the auto-off button. When that was pressed the car started to roll down our driveway with our daughter in the back seat. It rolled across the street, hit the side of our neighbors house, and landed in the woods. My wife sustained major injuries to her arms, legs, hands, and back. She was also 9 months pregnant. Toyota dealership says there's nothing wrong after a 30 minute inspection.
NHTSA complaint #11542820 — an unverified report by a vehicle owner.
Stanley, NCCrash1 injured
SERVICE BRAKES
Parked the car on an incline (our driveway) like we have a 100 times before. Went inside to unload groceries. Came back to the car and from the passenger seat reached over to press the auto-off button. When that was pressed the car started to roll down our driveway with our daughter in the back seat. It rolled across the street, hit the side of our neighbors house, and landed in the woods. My wife sustained major injuries to her arms, legs, hands, and back. She was also 9 months pregnant. Toyota dealership says there's nothing wrong after a 30 minute inspection.
NHTSA complaint #11542820 — an unverified report by a vehicle owner.
Lakeville, MNCrash
SERVICE BRAKES
When going down a parking ramp exit, my foot has slipped off the brake 3 time. When looking at the brake pedal it is smaller than most brake pedals. I don't know if anyone else has had this problem, but mandating a minimal size for brake pedal might help
NHTSA complaint #11528321 — an unverified report by a vehicle owner.
Tripoli, WICrash
UNKNOWN OR OTHER
Today I had a crash and luckily walked away. I went down an embankment at speed into trees where the vehicle rolled and struck trees head on. All the vehicle airbags deployed and vehicle came to rest on the drivers side. Although there was electrical power and the engine still running none of the right side doors would open and neither would the rear hatch which was clear of obstruction! Had there been a fire I wouldn't be making this report! Doors need to be operable regardless of situation when none of them are jammed from an accident!
NHTSA complaint #11502715 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Foster City, CA
POWER TRAIN
I, as well as other owners of 2017–2018 Toyota Highlanders and 2017–2018 Siennas are experiencing serious transmission issues—including high-pitched whining, erratic shifting, clunks, hesitation, and premature failure. My 2017 Toyota Sienna has the UA80 8-speed automatic transmission at issue and started whining upon acceleration in March/April 2026 timeframe. It has always had the clunking and hesitation problem. According to Gears Magazine, the issue stems from a flawed assembly process involving the counter drive gear support. A locking tab meant to secure a vital retaining nut was not bent properly during factory assembly. This leads to gear movement, internal wear, whining, and eventually failure. Unknown to me, in 2019, Toyota had acknowledged the problem in Technical Service Bulletins T-SB-0160-18, T-SB-0008-21, which only go to dealers, and implemented a limited Customer Support Program (CSP ZJC)—but only offered coverage to a narrow group of VINs, not to all VINs for model years that have these transmissions. My car is experiencing these same symptoms. My Toyota Dealer confirmed this problem and recommended a transmission replacement for $11,000 including labor. They said my VIN was not included in the Customer Support Program. Driving with a failing transmission is highly dangerous. A bad transmission can cause sudden power loss causing the car to halt to a sudden stop, unintended acceleration, or my car might get stuck in neutral while driving. I could lose control or be unable to get to the shoulder on the highway, cause a rear-end collision, or get stuck in busy traffic. DESIRED OUTCOME REQUEST: My VIN should be covered under the Customer Support Program in the category of cars that are “less than 10 years old regardless of mileage” or a full recall of all VINs of these model years with these transmissions should be executed. Thank you.
NHTSA complaint #11749682 — an unverified report by a vehicle owner.
Alma, GA
ELECTRICAL SYSTEM
power sliding door (behind front passenger) does not fully engage arresting hook and tends to immediately return to open position and after hitting the button again starts welling. It started about eight months ago. Now it isn’t connected at all, I just open or close it and it slides but don’t try to open it first if it’s locked or the alarm blares. I may have pulled or pushed it too many times trying to open or close it so I could drive the car. Looks like others have had the same issue with their driver side passenger door too.
NHTSA complaint #11748961 — an unverified report by a vehicle owner.
Palmyra, MO
POWER TRAIN
I have a 2017 Toyota Sienna XLE with about 120k miles on it. Out of nowhere the transmission was gear hunting and surging. It eventually became impossible to get it above 30 mph. It seemed like the transmission just went haywire. No lights on the dash let me know anything was wrong. Thankfully I had just pulled off the highway. Otherwise it could've been bad. I couldn't drive it safely so I had it towed to the nearest Toyota dealership. They said that the transmission needed to be replaced. $9k....
NHTSA complaint #11746069 — an unverified report by a vehicle owner.
Land O Lakes, FL
FUEL/PROPULSION SYSTEM
While driving at speed, the vehicle suffered a sudden and complete loss of engine power and stalled in traffic. The vehicle was diagnosed by an independent mechanic who found a failed factory-installed Denso fuel pump module. This failure mirrors Toyota Safety Recall 20TA02 (NHTSA Campaign 20V012) for the exact same model year 2017 Toyota Sienna, but my specific VIN is currently excluded from the recall list. The un-recalled defective component created an immediate highway safety hazard as me and my family were left stranded in the middle of the road. We waited for hours at the risk of oncoming traffic until we were able to have a tow truck lift the van and take to the nearest repair facility (an independent service center - Goodyear Auto Service). The repair facility diagnosed the problem and confirmed that the fuel pump failed to generate enough pressure causing the vehicle to stall and not start again. To correct the problem, the fuel pump was replaced with an OEM toyota fuel pump module assembly.
NHTSA complaint #11745697 — an unverified report by a vehicle owner.
Marshall, NC
POWER TRAIN
We experienced a high whine for a couple of months. No codes were being read by any mechanics. Then the transmission started slipping between 2nd and 3rd gears, and then we couldn’t reverse. Now it’s not switching gears at all. There is a recall for our year and type of transmission, for this issue, but our vin number is not included in that recall.
NHTSA complaint #11742281 — an unverified report by a vehicle owner.
Rockaway, NJ
POWER TRAIN
I have a 2017 Sienna AWD with a UA80 Transmission and the Check AWD System light appeared. I was able to drive it to Towne Toyota in Ledgewood, NJ and they detected the Sienna having DTC Codes P07407E, P27137F and P27567F. They they recommended a transmission replacement costing $9260.84 before tax that I can't afford right now. I am still able to drive the Sienna but Towne Toyota said that the Transmission will eventually fail. After some research, I discovered there is "ZJC UA80 Warranty_Enhancement" by Toyota. I am troubled that the service folks in Towne Toyota did not make me aware of this program! I am afraid to drive the vehicle knowing that the Check Engine Light may reappear. Or worse, the transmission can completely fail unexpectedly that may prevent me or other vehicles from avoiding a collision. It could also strand me on a busy highway and can possibly put my family at risk.
NHTSA complaint #11739882 — an unverified report by a vehicle owner.
Flowery Branch, GA
POWER TRAIN
The transmission went out. It wouldn't shift going 45-55 mph. We stopped at a light and put it into Park, then put it into drive but it wouldn't go. We were stuck at a light in traffic 10:30pm. We had to call 911 to get a cop to sit behind us so we wouldn't get hit. My wife, my 3 kids, and I were in the minivan. While waiting for the tow truck I saw on reddit that many 2017/2018 Toyota Sienna's had transmission problems. The vehicle is at Milton Martin toyota in Gainesville, GA. Toyota says it isn't covered by Bulletin ZJC. Toyota said the transmission is the issue.
NHTSA complaint #11739526 — an unverified report by a vehicle owner.
Scranton, PA
POWER TRAIN
Transmission is making a winning sound. Toyota had issued a Customer Support Program (Program ZJC/POL19-04) for some of that year but it seems to affect more than what they have allowed
NHTSA complaint #11738660 — an unverified report by a vehicle owner.
Apex, NC
POWER TRAIN
I am writing to report a safety defect regarding the 8-speed automatic transmission in my 2017 Toyota Sienna. The vehicle exhibits severe hesitation during acceleration, harsh shifting, and a high-pitched whining noise, specifically consistent with the 'whine of death' described in Toyota's Customer Support Program ZJC and related Technical Service Bulletin T-SB-0160-18.Despite these identical symptoms, my vehicle’s VIN is not included in the coverage list. This hesitation during acceleration creates a serious safety issue, as the car fails to accelerate unexpectedly when attempting to merge or cross traffic. My vehicle is equipped with the UA80F/E transmission, which is documented to have a faulty assembly (improperly bent washer tab). I request that NHTSA investigate the exclusion of my VIN from this program, as the defect poses a significant risk to passenger safety and the safety of others on the road.
NHTSA complaint #11737861 — an unverified report by a vehicle owner.
Sugar Land, TX
POWER TRAIN
Loss of power highway speeds, jerky shifting, “sealed” transmission leaking fluid. Check engine light and service required light. I have noticed poor performance with this vehicle before and reported it to the dealer to no avail. Toyota has enacted “customer support program ZJC” but the dealership will not honor.
NHTSA complaint #11731925 — an unverified report by a vehicle owner.
Rhinebeck, NY
POWER TRAIN
My transmission has started with a whining noise, Toyota knows about this issue with thousands of cases regarding the faulty transmission, yet only a few are being covered under a customer support bulletin ZJC. We need to hold Toyota responsible for this issue. We were just told today they won't help us at all. Yet now we are left with a van that we can't use and if we decide to fix it for 10k they are saying the transmission is backordered for months We had to pay Toyota $180 to diagnosis what we already knew was wrong with the vehicle so they would even consider if they would cover it.
NHTSA complaint #11731611 — an unverified report by a vehicle owner.
Reno, NV
ENGINE
Whining noise upon acceleration
NHTSA complaint #11720774 — an unverified report by a vehicle owner.
Lincoln, IL
POWER TRAIN
In July of 2025 my 2017 Sienna started making a whine noise. Took it to mechanic and he stated it was likely coming from transmission but recommended we take it to Toyota dealership to confirm. So we took it to Toyota and sure enough they said the transmission was failing. They said it was due to high mileage but it only had just over 150,000 at time of incident. After doing some research on line and talking with other Sienna owners I believe our Sienna should fall under the UA-80 recall.
NHTSA complaint #11719297 — an unverified report by a vehicle owner.
Scranton, PA
POWER TRAIN
The transmission started making a whining sound. There is a Toyota customer support bulletin pol19-04 that mentions this issue however the dealer says this car is not covered
NHTSA complaint #11718664 — an unverified report by a vehicle owner.
at 120,000 milesDenver, CO
POWER TRAIN
The contact owns a 2017 Toyota Sienna. The contact stated that while starting the vehicle, reversing, and then while driving 20 MPH, there was an abnormal whining sound coming from the front of the vehicle. A dealer was contacted. The vehicle was taken to the dealer and was currently being diagnosed. The vehicle was not repaired. The contact related the failure to Technical Service Bulletin: TSB-0160-18 (Transaxle Whine Noise, Harsh Shift, MIL ON, or Reduced Power); however, the VIN was not included in the bulletin. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 120,000.
NHTSA complaint #11712079 — an unverified report by a vehicle owner.
Edison, NJ
POWER TRAIN
My 2017 Sienna has whine noise coming from transmission, the vehicle was inspected by Toyota dealership and confirmed that the noise is coming from Transmission. Toyota has already issued a recall for the 2017 Sienna with Transmission UA80 under program ZJC. My vehicle has the same issue, however, it is not being covered as it is UA80E. This issue seems common among all the 2017 model irrespective of transmission number. However, Toyota is not providing support to all customer and have limited to a only one transmission number.
NHTSA complaint #11708831 — an unverified report by a vehicle owner.
Roseburg, OR
STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS
The drivers side sliding door when on the power on, it will either not catch when opening or not shut when you are trying to shut it. You can be in the door way and it will shut on you by itself. You have to physically stop it or pull it shut. I have taken it in the past to the local Toyota dealership, when it was under warranty, multiple times. They don't see anything wrong, or cannot explain it but have replaced the sensor multiple times. It will be ok for a while and then start again. I sometimes wonder if cold weather affects it but there is no rhythm or reason to it. I am scared to have children or my parents use this door and if I turn off the power to it, it is very hard to use the door because it is so heavy. There are no warning lights, messages, or signals of any kind.
NHTSA complaint #11706963 — an unverified report by a vehicle owner.
Roseburg, OR
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
The drivers side sliding door when on the power on, it will either not catch when opening or not shut when you are trying to shut it. You can be in the door way and it will shut on you by itself. You have to physically stop it or pull it shut. I have taken it in the past to the local Toyota dealership, when it was under warranty, multiple times. They don't see anything wrong, or cannot explain it but have replaced the sensor multiple times. It will be ok for a while and then start again. I sometimes wonder if cold weather affects it but there is no rhythm or reason to it. I am scared to have children or my parents use this door and if I turn off the power to it, it is very hard to use the door because it is so heavy. There are no warning lights, messages, or signals of any kind.
NHTSA complaint #11706963 — an unverified report by a vehicle owner.
Richmond, TX
ENGINE
Subject: Safety Defect Complaint – 2017 Toyota Sienna (VIN: [XXX] ) Dear NHTSA Safety Division, I am submitting a safety complaint regarding my 2017 Toyota Sienna, VIN [XXX] . In June 2023, while traveling on I-81 South in Virginia with my family of seven, the van stalled suddenly and emitted white smoke from under the hood, then the engine completely failed. The vehicle had only 111,000 miles. The repair would have cost $15,000, and I had to sell the van in 2024 for $4,000, suffering significant financial loss. Toyota informed me no recall applies to my VIN, although many 2017 Siennas experienced fuel pump failures causing stalling. As a person with disability and serious health issues, this incident caused extreme stress, hardship, and risk to my family. I request that NHTSA investigate this potential safety defect to determine whether other 2017 Siennas are affected. Sincerely, Your Name Phone Number Address INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11700382 — an unverified report by a vehicle owner.
at 136,000 milesMount Juliet, TN
POWER TRAIN
The contact owns a 2017 Toyota Sienna. The contact stated that while driving approximately 30-40 MPH and releasing the accelerator pedal, the vehicle made an abnormal whining sound that progressively became louder. The vehicle was taken to the dealer, where it was diagnosed, and it was determined that the transmission needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure and denied assistance in covering the cost of the repair. The failure mileage was approximately 136,000
NHTSA complaint #11698003 — an unverified report by a vehicle owner.
Acworth, GA
UNKNOWN OR OTHER
I am writing to report a significant safety issue with my vehicle involving a leaking sunroof that is causing damage to both the seatbelts and airbags. I believe this issue poses a serious safety concern and could lead to malfunctioning safety systems during an accident. I asked my local Toyota dealership for guidance adn they told me to clean the drain tubes out with weed eater wire. We tried that and the drains were working fine. If that did not work, it would be 3-5 thousand dollars to fix it. I have reported this issue to Toyota cooperate, but they are not willing to acknowledge the issue because of the year and miles on my van. There are several other Toyota Sienna van owner that have experienced the same problem and yet a recall has not been issued. This is my family vehicle that I drive my young kids around in. I feel that Toyota is willing to put my family's safety on the line by not acknowledging this on going issue. Issue: The sunroof in my vehicle has developed a leak over the past year that continues to get worse. The leak is allowing water to enter the cabin during rain. The water appears to be collecting around the area where the sunroof is installed and is dripping onto the headliner, seatbelts, and side airbags. It soaks my driver and passenger seatbelts for days. Damage: Over time, this leak has caused visible deterioration to the seatbelts, as they are getting wet and showing signs of wear. Additionally, the airbags may be at risk, as moisture could affect their proper deployment during an accident. I am concerned that the presence of moisture may result in these safety features malfunctioning when needed most. This could potentially be a fatal issue.
NHTSA complaint #11697428 — an unverified report by a vehicle owner.
Wesley Chapel, FL
UNKNOWN OR OTHER
While driving our vehicle on the highway, the check engine light suddenly came on and traction control turned off. Within moments, the vehicle began to stall and would not accelerate. My wife and children were in the car and we were nearly hit by another vehicle as she struggled to get the car to safety. It was a terrifying experience that put my entire family in danger, along with everyone else on the highway. Upon taking the car to the dealership, we were told the transmission failed and would need to be replaced.
NHTSA complaint #11694813 — an unverified report by a vehicle owner.
at 40,000 milesRedlands, CA
POWER TRAIN
The contact owns a 2017 Toyota Sienna. The contact stated that while driving at an undisclosed speed and attempting to accelerate, the vehicle briefly hesitated before shifting hard into gear. The contact stated that after the failure, there was an abnormal whining sound coming from underneath the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who was unable to provide a specific diagnosis for the cause of the failure; however, the contact was informed that there were known issues with the transmission of similar vehicles. The vehicle was not repaired. After investigating the failure, the contact related the failure to the Customer Support Program Bulletin: ZJC. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 40,000.
NHTSA complaint #11693385 — an unverified report by a vehicle owner.
at 69,000 milesPacific, WA
ENGINE
The contact owns a 2017 Toyota Sienna. The contact stated that occasionally while driving approximately 35 MPH, the vehicle lost automotive power before jolting forward. There was an unknown warning light illuminated. In addition, the contact stated that the failure had progressed over time. The vehicle was taken to a local independent mechanic; however, the cause of the failure was unknown. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 69,000.
NHTSA complaint #11691232 — an unverified report by a vehicle owner.
Hartland, WI
POWER TRAIN
My 2017 Toyota sienna has a whine noise coming from the transmission. Brought it to the dealer I have done everything at for this van and they say it’s the transmission and it will cost more than it’s worth. There’s a CSP-zjc but my vin isn’t on there. It’s presenting the same exact problem as the CSP. Unbelievably, Toyota CARES isn’t doing a “good will” service fix. Very disappointed in their customer service
NHTSA complaint #11686730 — an unverified report by a vehicle owner.