The Used Car Index

2020 Toyota Sienna problems

NHTSA lists 38 complaints for the 2020 Toyota Sienna, 0 of them mention a crash and 1 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-09.

NHTSA lists this vehicle as TOYOTA SIENNA.

At a glance

Complaints
38
With crash
0
With fire
1
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
2
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
1,525,742
Investigations
0
Open investigations
0
Manufacturer communications
153

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
POWER TRAIN821.1%
ELECTRICAL SYSTEM718.4%
ENGINE615.8%
FUEL/PROPULSION SYSTEM615.8%
UNKNOWN OR OTHER615.8%
STRUCTURE410.5%
STEERING37.9%
FUEL SYSTEM, GASOLINE25.3%
SERVICE BRAKES25.3%
AIR BAGS12.6%
Top subsystems
SystemSubsystemComplaints
STRUCTUREBODY4
ELECTRICAL SYSTEMINSTRUMENT PANEL1
SERVICE BRAKES, AIRANTILOCK1
VISIBILITYREARVIEW MIRRORS/DEVICES1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
mechanical failure1334.2%0.84
loss of control1026.3%0.80
electrical electronic513.2%0.81
unclear37.9%0.91
fluid or fuel leak25.3%0.58
noise or comfort25.3%0.65
fire or overheating12.6%0.59
structural or corrosion12.6%0.82
visibility or lighting12.6%0.81
Severities
LabelCountShare of taggedMean confidence
moderate2463.2%0.80
low1026.3%0.68
high25.3%0.69
none25.3%0.64

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 38 tagged complaints of 38 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

2 recalls.

20V682000

Date: 2020-11-04. Systems: FUEL SYSTEM, GASOLINE.

Defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2018-2020 Lexus ES350, 2017 Lexus GS200t, 2017-2019 Lexus GS350, 2019 Lexus GS300, 2018-2020 Lexus LC5 (excerpt)

Consequence: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash. (excerpt)

Remedy: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models will be notified as remedy parts become available. Remedy parts should be available for all affected vehicles by late March 2021. Owners may contact Toyota cust (excerpt)

Do not drive: No. Park outside: No.

19V532000

Date: 2019-07-16. Systems: STEERING.

Defect: Braun Corporation (Braun) is recalling certain modified 2017-2020 Toyota Sienna vehicles. The steering shaft extensions may have been improperly manufactured, possibly causing the extensions to fracture.

Consequence: If the steering shaft extension completely fractures, it can cause a loss of steering, increasing the risk of a crash.

Remedy: Braun has notified owners, and dealers will replace the steering shaft extensions, free of charge. The recall began July 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

153 manufacturer communications.

Communications by system
SystemCount
EQUIPMENT64
ELECTRICAL SYSTEM32
STRUCTURE32
ENGINE AND ENGINE COOLING10
BACK OVER PREVENTION9
ENGINE8
EQUIPMENT ADAPTIVE/MOBILITY6
VISIBILITY5

11028726

Date: 2026-01-30. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.

11028722

Date: 2026-01-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Some 2018 a 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.

11028712

Date: 2026-01-07. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

Some 2005 a 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedur

11020657

Date: 2025-06-13. Type: Service Campaign. Systems: ELECTRICAL SYSTEM.

The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.

11018329

Date: 2025-04-02. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.

11019332

Date: 2025-04-02. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.

11015500

Date: 2025-02-11. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Some 2018 a 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update, however, the pro

11016786

Date: 2025-02-11. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

Some 2018 a 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update, however, the pro

11012743

Date: 2024-12-06. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.

To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and initial rust before the vehicle is delivered to the customer.

11012744

Date: 2024-12-06. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.

The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof,

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
SIENNA38

Same model, other years

All model years | All Toyota models

Other Toyota models, 2020

Sources

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