2018 Toyota Sienna problems
Owners have filed 89 complaints with NHTSA about the 2018 Toyota Sienna. Drivetrain & axles is the most reported problem area, at 22% of complaints. Next are fuel system (15%) and electrical system (8%).
At a glance
- Complaints
- 89 filed with NHTSA
- Most reported
- Drivetrain & axles 23% of complaints
- Crashes and fires
- 5 and 0
- Injuries and deaths
- 6 and 0
- Typical mileage
- 20,000 miles 48 complaints with mileage
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
When problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 24 |
| 20k to 40k miles | 11 |
| 40k to 60k miles | 4 |
| 60k to 80k miles | 4 |
| 80k to 100k miles | 0 |
| 100k to 120k miles | 1 |
| 120k to 140k miles | 2 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 1 |
| 180k to 200k miles | 0 |
| 200k+ miles | 1 |
What the data shows
Of the 48 complaints that include odometer readings, half describe a problem before roughly 20,000 miles.
Safety-related details: 5 complaints mention a crash; 6 injuries reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2018 ranks 20th most-complained-about out of 23 model years of the Toyota Sienna with enough data (69 complaints in that window). It is also covered by 7 safety recall campaigns.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
The contact owned a 2018 Toyota Sienna The contact stated while driving 70 MPH, the contact was rear-ended and the vehicle lost control and the vehicle rolled over multiple times and fell into a ditch. The contact stated that the side air bags did deploy but the front air bags did not deploy vduring the accident. Medical attention was given to the contact and her family in which they were transported to the local emergency room.
The contact owned a 2018 Toyota Sienna. The contact stated while driving at 74 mph, a deer ran across the freeway, and as a result, the contact crashed into the deer. The air bags failed to deploy. A police report was filed. The contact sustained a sore shoulder but did not require medical treatment. The was not drivable and was towed back to their home address. The vehicle was not diagnosed or repaired.
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.
Unintended acceleration while reversing vehicle. Van went full throttle and sped up in reverse while backing up from my drive way at home.
Odometer Fraud. The contact purchased a 2018 Toyota Sienna. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 49,000. While attempting to resell the vehicle, the Auto Check report indicated that the mileage was 324,000.