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10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
9,293 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Toyota Sienna miscellaneous problems

miscellaneous problem

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2018 Toyota Sienna Owner Comments

problem #12

Feb 192024

Sienna

  • miles

A D V E R T I S E M E N T S

I am an owner of a 2018 Toyota Sienna LE. The Vehicle has an issue with the safety connect system. Dealer first states that the cause is the data handling being off, called Toyota turned it on and waited for a few days and still did not work. Called Dealer to make an appointment for service, dealer advised that they reset the DCM twice and to wait 24-48 hours to see if it works. It still does not work. No lights present on the overheard place where the SOS Safety connect Button is located.

- Fitchburg, MA, USA

problem #11

Aug 302021

Sienna

  • miles
Driver side automatic sliding door won-??t stay open, upon opening and reach all the way, it will quickly close. My child safety is a big concern.

- Torrance , CA, USA

problem #10

Jan 202021

Sienna 6-cyl

  • 9,925 miles
WE RECEIVED A SAFETY RECALL NOTICE FROM TOYOTA FOR A DEFECTIVE LOW-PRESSURE FUEL PUMP ON OUR 2018 TOYOTA SIENNA. BUT THE DEALERSHIP, FOWLER TOYOTA OF TULSA, WOULD NOT REPLACE THE RECALLED PART FREE OF CHARGE BECAUSE OF THE VEHICLE BEING CONVERTED BY A NON-AUTHORIZED MOBILITY CONVERSION COMPANY. SO FAR THE VAN HAS NOT MALFUNCTIONED BUT FEEL LIKE THE RECALLED PART SHOULD BE REPLACED. CONSUMER CONTACTED THE MANUFACTURER BUT HAS NOT RECEIVED A RESPONSE. OUR COMPANY, BRIGHTER DAY, INC., PURCHASED THE VAN FROM AFFORDABLE MOBILITY SOLUTIONS AND IT WAS CONVERTED FOR WHEELCHAIR ACCESSIBILITY BY ASSISTED TRANSPORTATION SYSTEMS. I CALLED & SENT AN EMAIL TO ATS BUT HAVEN'T RECEIVED ANY RESPONSE. PLEASE RESPOND AT YOUR EARLIEST CONVENIENCE. THANK YOU, [XXX] ~ FLEET MANAGER BRIGHTER DAY, INC. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Tulsa, OK, USA

problem #9

Jan 272021

Sienna

  • 16,000 miles

A D V E R T I S E M E N T S

Mobility works sold me a car, that had a recall, designed for special needs, they knew avout it plus the ramp wasnt working properly, made me pay for an expensive warranty that doesnt cover the problem that already has, they are blaming me for misuse I got it 4 months ago my son doesnt weight more than 100 pounds

- Moreno Valley, CA, USA

problem #8

Oct 252020

Sienna

  • 28,000 miles
Power door cable broke, door does not open

- Burlington, VT, USA

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problem #7

Jun 072020

Sienna 6-cyl

  • miles
There is a recall notice on my van and Toyota has no solution for it as of yet and it is causing me to be unable to renew my registration online and I will now have to pay a late fee.

- Norwalk, CA, USA

problem #6

May 222020

Sienna 6-cyl

  • 10,000 miles

A D V E R T I S E M E N T S

I am unable to pay my renewal registration fee because there is no available remedy for the recall on my vehicle yet. I am not sure what to do at the moment. The dmv told me to contact my dealer. But my dealer responded by stating that there is no remedy to fix the vehicle yet. The dealer said that I should notify the dmv so that they could investigate further and allow me to pay my dues. This current covid-19 pandemic has made it difficult for me to get in contact with the dmv.

- Los Angeles, CA, USA

problem #5

May 032020

Sienna 6-cyl

  • 8,020 miles
My van has been sitting in the driveway during the covid-19 lockdown. One day I noticed a crack from top to bottom down the middle of the windshield. This has to be due to a manufacturing defect because there was no accident, no trees above the van, and the pattern is not the same as windshields that have been hit by rocks. This model van has had multiple safety recalls and a class action lawsuit so I won't be surprised if this was a manufacturing defect. My hope is that this will turn into a safety recall and Toyota takes responsibility and fixes it. The "bumper to bumper" warranty does not cover windshield defect. They dealership claim that it was caused by wear & tear without even inspecting it. When I called corporate, they said the same thing and I can take it into the dealership for an inspection. However, I would have to pay for the inspection fee.

- Metairie, LA, USA

problem #4

Dec 022019

Sienna

  • 32,148 miles
The pcs stopped our van abruptly with no warning and did not slow down. Cruise control set at 75 mph North bound on tx hwy 69 between alto and rusk, tx. No rain smooth road late at night only the car in front of us. No other traffic. I screamed. Husband had fallen to sleep at the wheel even though we had taken a long nap in huntington, tx. We were on our way back home from my sister's funeral in nederland, tx.. I could see inside the read window of the car we stopped behind. No collision but injured my neck. Have medical records, was treated for neck injuries in jacksonville, tx and tyler,

- Flint, TX, USA

problem #3

Oct 052018

Sienna

  • 1,200 miles
1. even to go on a small uphill slope, the vehicle(V6) really struggles. And when I try to accelerate, it kind of stalls or slows down for a moment, then tries to speed up but its still very slow. I'm facing this issue every day. My other car 2011 Camry(V4) is very smooth at the exact same places. Cant believe the pickup is this poor with a new car. 2. on highways, just to maintain the speed over 65 mph on a recent trip, I had to press real hard on gas the whole time, even after that, I can clearly tell the vehicle was working extra hard just to be over 65. This issue is consistent every time I go on highways. Many owners have reported the above issues at Toyota owners forum: Https://www.Toyota.com/owners/community/ask-an-owner/question-details/id/62777282 both issue#1 and 2 might lead to/trigger a back end collision because the cars coming from behind wont know that the vehicle will slow down (due to poor pickup) all on a sudden on even a smaller slope. Same with highways too and got tailgated on many occassions on highways. Recently did the diagonostics at the dealerhsip recently but they said everything looks good.

- Atlanta, GA, USA

problem #2

Oct 062018

Sienna

  • 5,348 miles
Exploding moon roof

- Austin, TX, USA

problem #1

Aug 222018

Sienna

  • 871 miles
3rd row seating passenger side cut holders and side panel get hot after 10 minutes of driving. Took the vehicle to Toyota dealership for diagnosis and was told that the rear heating unit is routed along the 3rd row seating passenger side cut holders and side panel. Since the lines for the rear heating unit is running with coolant at 190F, the heat is transferred to the surrounding area and causing the hot cup holders and side quarter panel. As the vehicle ages, this will definitely become worse. The Toyota dealership informed me that this is the way designed by Toyota; however, this clearly is a design flaw and needs to be remedied.

- Yardley, PA, USA

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