AutoUtility currently tracks 152 official NHTSA owner defect complaints for the 2017 Toyota Sienna. Powertrain & Transmission issues are the most frequently reported category, appearing in 36 complaints (23.7% of submitted records). Among these NHTSA complaint records, 13 filings cite a crash, 4 cite a fire, 9 report one or more injuries.

Key Problem Findings
  • Total NHTSA Complaints: 152 reports
  • #1 Reported Problem Area: Powertrain & Transmission (36 reports • 23.7% of submitted complaints)
  • Secondary Problem Areas: Electrical System (20), Fuel & Propulsion System (17)
  • Crash-Citing Complaints: 13 filings
  • Fire-Citing Complaints: 4 filings
  • Complaints Reporting Injuries / Fatalities: 9 injury filings • 0 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
152
Submitted to NHTSA ODI
Crash-Citing Complaints
13
Filings citing a collision
Fire-Citing Complaints
4
Filings citing smoke or fire
Complaints Reporting Injuries
9
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2017 Toyota Sienna

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 23.7% of complaints

Powertrain & Transmission

36 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report 🩹 2 injury report entries
#2 Problem Area 13.2% of complaints

Electrical System

20 owner complaints submitted to NHTSA ODI
⚠️ 3 crash reports 🔥 2 fire reports
#3 Problem Area 11.2% of complaints

Fuel & Propulsion System

17 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 2 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
⚠️ 1 crash report
#4 Problem Area 10.5% of complaints

Wheels & Tires

16 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 2 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
#5 Problem Area 9.2% of complaints

Body & Structure

14 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
⚠️ 1 crash report 🔥 1 fire report 🩹 2 injury report entries
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Symptoms Mentioned in NHTSA Owner Reports for 2017 Toyota Sienna

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

AutoUtility uses deterministic phrase matching to identify recurring symptom descriptions within consumer-submitted NHTSA complaint narratives.

Powertrain & Transmission 2.6% of complaints

Loss of Motive Power While Driving

4 complaint narratives describe this symptom
Symptom Identification Method: A complaint may describe more than one symptom, so percentages may sum to more than 100%. Symptom identification reflects text contained in consumer-submitted complaint records and does not establish a confirmed mechanical diagnosis.

Recent NHTSA Owner Reports for 2017 Toyota Sienna

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Powertrain & Transmission NHTSA ODI ID: #11749682
Filed: 07/11/2026

"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..."

Incident Date: 04/01/2026 • Raw NHTSA Component: POWER TRAIN
Electrical System NHTSA ODI ID: #11748961
Filed: 07/08/2026

"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..."

Incident Date: 10/17/2025 • Raw NHTSA Component: ELECTRICAL SYSTEM
Powertrain & Transmission NHTSA ODI ID: #11746069
Filed: 06/23/2026

"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..."

Incident Date: 06/22/2026 • Raw NHTSA Component: POWER TRAIN
Fuel & Propulsion System NHTSA ODI ID: #11745697
Filed: 06/22/2026

"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)..."

Incident Date: 09/07/2024 • Raw NHTSA Component: FUEL/PROPULSION SYSTEM
Powertrain & Transmission NHTSA ODI ID: #11742281
Filed: 06/05/2026

"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..."

Incident Date: 03/04/2026 • Raw NHTSA Component: POWER TRAIN
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for Toyota Sienna

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Toyota Sienna 230 17 6 View 2015 Problems →
2016 Toyota Sienna 75 7 5 View 2016 Problems →
2017 Toyota Sienna Current Page 152 13 10 Current
2018 Toyota Sienna 69 5 7 View 2018 Problems →
2019 Toyota Sienna 45 2 7 View 2019 Problems →
2020 Toyota Sienna 37 0 2 View 2020 Problems →
2021 Toyota Sienna 37 0 4 View 2021 Problems →
2022 Toyota Sienna 15 1 4 View 2022 Problems →
2023 Toyota Sienna 66 8 2 View 2023 Problems →
2024 Toyota Sienna 65 5 3 View 2024 Problems →
2025 Toyota Sienna 264 2 5 View 2025 Problems →
2026 Toyota Sienna 0 0 0 View 2026 Problems →
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2017 Toyota Sienna

Complete distribution of consumer defect reports across all 50 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Powertrain NHTSA category: POWER TRAIN 29 0 0 1 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 18 1 1 1 0
Wheels & Hubs NHTSA category: WHEELS 13 0 0 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 10 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 6 0 0 0 0
Engine NHTSA category: ENGINE 6 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 6 2 0 0 0
Structure & Body NHTSA category: STRUCTURE 6 0 0 1 0
EXTERIOR LIGHTING 4 0 0 0 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 3 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 3 0 0 0 0
Steering NHTSA category: STEERING 3 1 0 2 0
Visibility / Glass NHTSA category: VISIBILITY 3 0 0 0 0
Air Bags NHTSA category: AIR BAGS 2 2 0 2 0
POWER TRAIN,SERVICE BRAKES 2 1 0 1 0
STRUCTURE,LATCHES/LOCKS/LINKAGES 2 0 0 1 0
TIRES,WHEELS 2 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 2 0 0 0 0
AIR BAGS,SEAT BELTS 1 1 0 2 0
AIR BAGS,VEHICLE SPEED CONTROL,SERVICE BRAKES 1 1 0 0 0
ELECTRICAL SYSTEM,AIR BAGS 1 1 0 0 0
ELECTRICAL SYSTEM,BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE 1 0 1 0 0
ELECTRICAL SYSTEM,ENGINE 1 0 1 0 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES 1 1 0 0 0
ELECTRICAL SYSTEM,STRUCTURE 1 0 0 0 0
ELECTRICAL SYSTEM,STRUCTURE,UNKNOWN OR OTHER 1 1 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 1 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ELECTRONIC STABILITY CONTROL (ESC) 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL 1 0 0 0 0
ELECTRONIC STABILITY CONTROL (ESC),FUEL/PROPULSION SYSTEM 1 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER 1 0 0 0 0
Seats & Restraints NHTSA category: SEATS 1 0 0 0 0
SEATS,UNKNOWN OR OTHER 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
STEERING,POWER TRAIN,VISIBILITY,VEHICLE SPEED CONTROL 1 0 0 0 0
STEERING,SERVICE BRAKES 1 0 0 0 0
STEERING,SUSPENSION,WHEELS 1 0 0 0 0
STRUCTURE,ENGINE 1 0 1 0 0
STRUCTURE,UNKNOWN OR OTHER 1 0 0 0 0
SUSPENSION,POWER TRAIN,ENGINE 1 0 0 0 0
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM 1 1 0 0 0
VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
VISIBILITY,LATCHES/LOCKS/LINKAGES 1 0 0 0 0
VISIBILITY,STRUCTURE 1 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (152). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.