2017 Toyota Sienna Problems

What owners report

Owners of this model year most often describe transmission complaints: whining noises, harsh or delayed shifts, hesitation when accelerating from a stop, and in some cases a dealer diagnosis that the transmission needs replacement. A second recurring theme is premature, uneven tire wear on all-wheel-drive vans, and a smaller group concerns instrument cluster lighting that is hard to read in daylight. Reports span the whole range from near-new vehicles to well over 100,000 miles.

1. 1
   Transmission and drivetrain

   Transmission whine, harsh shifting and hesitation

   • 43 complaints (27%)
   • median 30,000 mi at 3.0 yrs old (21 state mileage)
   • 4 mention a crash, fire or injury
   • filed 2017–2026

   Owners describe a whining or high-pitched noise from under the vehicle, often while driving at steady speed or when releasing the accelerator, along with hard shifts, delayed engagement, and moments where pressing the gas produces little or no response before the van jolts forward. Several complaints say a dealer or independent shop diagnosed internal transmission failure and recommended replacement; some mention Toyota extended coverage related to the unit, others were told the repair was not covered. A few reports tie the behavior to the transmission control software selecting an incorrect gear. Reports cluster from roughly 14,000 to 140,000 miles, with most of the transmission-noise and hard-shift complaints between about 40,000 and 120,000 miles.

   3 related service bulletins

   What to check: On a test drive, listen for a whine that rises with speed or appears when lifting off the throttle, and note any harsh or delayed 2-3 shifts. Ask whether the ECM/transaxle software bulletins for this model year were applied and whether any transmission work has been done.

   2 excerpts from owner complaints in NHTSA records

   “July 22 2018 afternoon. I was driving the Sienna 2017 on a highway in speed 70mph in the ect mode with my wife and kids. It seemed everything normal at the beginning. When I was pressing gas pedal the car did not accelerate at all. On the contrary, the mini-van was slowing down. I became nervous since that was a 3 lanes highway, I was in leftist lane and there was narrow cube and did not have enough space to stop. I pressed gas pedal harder, and engine got to 6000 RPM however there was no power at all. …”

   NHTSA complaint #11114698, filed 2018-07, 5,900 miles

   “History: periodically over the life of the vehicle, when I push down on the gas peddle the car is unresponsive or responds in fits and starts. This is usually upon startup after stopping at a stop sign or light. But it did happen in may of 2019 at 65mph on the freeway (going straight), resulting in sudden deceleration. As I moved over lanes to get to the side of the road, there was a sudden jolt and the car began functioning normally. On sunday 9/22/19 at 10am I left my home with my daughter to go to the movies. …”

   NHTSA complaint #11257724, filed 2019-09, 30,000 miles
2. 2
   Fuel system

   Stall or loss of power when accelerating from a stop

   • 29 complaints (18%)
   • median 23,750 mi at 2.8 yrs old (16 state mileage)
   • 2 mention a crash, fire or injury
   • filed 2017–2026

   Complaints describe the engine stalling, bogging down, or failing to respond to the accelerator when pulling away from a stop sign, light, or junction, sometimes followed by a jolt as the van drops into a lower gear. Some owners report rough acceleration and chugging at low mileage; a few say a dealer attributed it to traction control cutting fuel, or diagnosed a transmission fault. Others link it to the fuel pump recall but say their vehicle was not included or the repair part was unavailable. Reported from a few thousand miles up through about 65,000 miles, usually in stop-and-go or junction situations.

   Recall 20V682000Recall 20V0120002 related service bulletins

   What to check: Ask whether the fuel pump recall campaign was completed on this vehicle, and whether the vacuum pump knocking bulletin was addressed. During the drive, pay attention to response from a dead stop.

   2 excerpts from owner complaints in NHTSA records

   “Vehicle exhibits periods of rough acceleration, chugging, and hesitation. After 3 trips to different Toyota dealers they refuse to address problem. A massive recall of Toyota fuel pumps is underway on several vehicles including 2017 Sienna's but dealerships claim my 2017 Sienna is not on list. I've lived with this for 3 years and my vehicle is till under warranty with less than 18,000 miles on it. Happens whenever vehicle is used. Dealerships won't test it as they have to drop gas tank.”

   NHTSA complaint #11326738, filed 2020-06, 17,500 miles

   “Wife was driving vehicle, while turning off of a main road with vehicle in drive the vehicle stopped accelerating with foot depressing gas pedal. Pulled vehicle over, turned on and off couple of times, each time shifting from park to drive and attempting to accelerate, but vehicle had no response. I came to switch vehicles and send her home with the kids. I started vehicle and attempted drive and reverse, neither of which responded. I then switched to standard transmission mode, the vehicle then would drive and I took it home. …”

   NHTSA complaint #11054175, filed 2017-12, 2,122 miles
3. 3
   Wheels

   Premature and uneven tire wear (AWD vans)

   • 19 complaints (12%)
   • median 19,900 mi at 2.0 yrs old (15 state mileage)
   • filed 2017–2023

   Owners report original tires wearing out or wearing unevenly, with inner-shoulder and scalloped patterns, well before the expected mileage — often by 20,000 to 25,000 miles. Several describe being told at routine service that the tires needed replacement, and some link it to the rear alignment not being adjustable on all-wheel-drive versions. Some complaints note that rotation was skipped or limited, and that the tire maker and dealer pointed at each other. Mostly reported between roughly 17,000 and 35,000 miles, typically on all-wheel-drive vans with the factory tires.

   Recall 17V2950001 related service bulletin

   What to check: Run a hand over the inner edge of all four tires and check tread depth inside versus outside; uneven inner wear is the pattern owners describe. Ask for the tire rotation history and whether an alignment was ever performed.

   2 excerpts from owner complaints in NHTSA records

   “I bought new 2017 Toyota Sienna awd xle. I noticed in first month that steering wheel started pulling left. Took the van for alignment but never got fixed. Now I have 25000 miles tires rotation dealership told me that my tires are more wearing inside than outside. And it's not safe on the roads. I have 4 kids that we use this van for daily transportation. I don't feel safe on the road with myself and my family.”

   NHTSA complaint #11194269, filed 2019-04, 25,000 miles

   “The bridgestone run flat tyres on my Toyota Sienna 2017 awd has worn out in 24,000 miles. These are the factory tyres and when the dealer sold the car to us, they said it comes with warranty . But it seems that is not the case. Kindly help. These tyres are expensive and if I have to change it around 20,000 miles, its too much. All we use the car is to drop off kids to school and their sporting events. We never took the van in bad roads.”

   NHTSA complaint #11324135, filed 2020-05, 24,156 miles
4. 4
   Electrical system

   Instrument gauges hard to read in daylight

   • 8 complaints (5%)
   • median 2,562 mi at 0.7 yrs old (6 state mileage, few)
   • filed 2017–2023

   Owners state that the speedometer and other gauges are dark and difficult to read in daylight unless the headlights or parking lights are switched on. Several say they raised it with a dealer and were told nothing could be changed, while one report describes a dealer altering the lighting configuration so the automatic-light and lights-on reminder no longer worked as expected. Owners describe having to take their eyes off the road longer to read their speed. Reported at very low mileage, often within the first few thousand miles on newly purchased vehicles.

   What to check: Sit in the van in daylight with the lights off and confirm you can read the gauges comfortably. Ask whether any lighting or cluster settings were changed by a dealer.

   2 excerpts from owner complaints in NHTSA records

   “The 2017 Toyota Sienna le does not illuminate the speedometer, tachometer and other gauges when the headlights are set to the auto or drl off (lights off/ daytime running lights on) position. As a result, under some daylight driving conditions, such as when exterior conditions are bright but there is no direct light on the gauges, the speedometer is not easily visible. …”

   NHTSA complaint #11012766, filed 2017-08, 1 miles

   “There is a safety design flaw in this vehicle. The dashboard instrument lights will not light up in the daytime making it very difficult to read the speedometer and other instruments resulting in distracted driving. Toyota refuses to correct this design flaw.”

   NHTSA complaint #10960438, filed 2017-03, 5,000 miles
5. 5
   Brakes

   Brake assist loss and a hard brake pedal

   Mentioned in 5 of 60 sampled complaints

   Owners describe the brake pedal becoming rigid and requiring much more effort to stop, sometimes with the brake and traction control warning lights coming on intermittently beforehand. One report describes nearly being unable to stop while leaving a highway off-ramp. Others describe vibrations in the steering wheel and a jerky feel when braking from higher speeds. Dealers in some cases could not identify a cause. Reported from very low mileage up to about 50,000 miles, with several cases just below 50,000 miles.

   Recall 18V211000Recall 19V410000Recall 19V553000

   What to check: Ask whether the brake booster vacuum pump recall was performed. Test the pedal feel at a standstill and at low speed, and watch for brake or traction-control lights on the dash.

   2 excerpts from owner complaints in NHTSA records

   “The vacuum brake assist failed with less than slightly less than 50k miles on the car. Not sure exactly when it failed because the brake and traction control lights were on intermittently for awhile before we took the car in for service. We did have a near miss while making a long drive when we were trying to leave the interstate on an off ramp and I was almost unable to stop at the top of the ramp. I had to angle the vehicle to the left to avoid hitting a pickup truck at the top of the ramp.”

   NHTSA complaint #11402803, filed 2021-03, 49,000 miles

   “When I brake (especially from higher speeds) the steering wheel shakes and the car ride feels very jerky - esp for those in the front seats. There also seems to be a whining or rubbing noise.”

   NHTSA complaint #11309295, filed 2020-02, 1 miles

Buying note. A pre-purchase inspection focused on the transmission and brake system is worthwhile, since those account for the largest share of owner reports and repairs can be costly. Confirm which open recalls apply to the specific vehicle and whether they were completed, and check tire condition and wear pattern carefully on all-wheel-drive examples.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.