BumperScan
Powered byNHTSA|EPA|Community Reports
Your report: 3 of 4 steps complete75%
Car identifiedData collectedBasic analysisFull AI analysis

Free Preview

#BS-2004-TOYSIE-5568

2004 Toyota Sienna

Based on reports from 1,000 owners and 10 recalls for this exact model.

Complaints
1,000
Crashes
26
Fires
3
Recalls
10
TSBs
257
🛑

Preliminary Verdict

Red Flag

Based on 1,000 complaints, 26 crashes, 3 fires, and 10 recalls. Complaint rate is 1.6x the class average.

See full verdict with buy/skip conditions

Top reported problems

1

broken weld in door

24 complaints • Severity 7.1/10

$X,XXX
2

cable for automatic sliding side doors split and broke

11 complaints • Severity 8.4/10

$X,XXX
3

sudden unintended acceleration

4 complaints • Severity 10/10

$X,XXX

Preview: What's in your full report

Each card shows a real sample from your report — unlock all 10 sections from $1.20

Mechanic Inspection Checklist

!Check the Structure:body:doorHIGH

147 owners reported structure:body:door issues — failures commonly reported around 57K miles.

!Inspect the Latches & LocksMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

188
0–30K
222
30–60K
224
60–90K
113
90–120K
32
120–150K
2
150K+

Peak failure range: 60–90K miles (224 reports) • Median: 57K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Structure:body:door (147 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Structure:body:door147 (15%)
Latches & Locks129 (13%)
Structure74 (7%)
Structure:body:hatchback/liftgate:support Device/strut59 (6%)
Wheels & Tires50 (5%)
Steering44 (4%)
Structure:body38 (4%)
Speed Control33 (3%)

2004 Toyota Sienna: Known Issues & Problem Areas

Structure:body:door Issues

Structure:body:door complaints account for 15% of all reports filed for the 2004 Toyota Sienna, with 147 owners filing complaints with NHTSA. The median mileage at time of complaint is 57,000 miles, suggesting issues tend to surface around the 57K-mile mark.

Latches & Locks Issues

Latches & Locks complaints account for 13% of all reports filed for the 2004 Toyota Sienna, with 129 owners filing complaints with NHTSA. Owners should pay attention to latches & locks-related symptoms during test drives and pre-purchase inspections.

Structure Issues

Structure complaints account for 7% of all reports filed for the 2004 Toyota Sienna, with 74 owners filing complaints with NHTSA. Owners should pay attention to structure-related symptoms during test drives and pre-purchase inspections.

Structure:body:hatchback/liftgate:support Device/strut Issues

Structure:body:hatchback/liftgate:support Device/strut complaints account for 6% of all reports filed for the 2004 Toyota Sienna, with 59 owners filing complaints with NHTSA. Owners should pay attention to structure:body:hatchback/liftgate:support device/strut-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

25
03
92
04
102
05
75
06
130
07
156
08
205
09
215
10

Complaints filed with NHTSA by year for the 2004 Toyota Sienna. Recent trend: stable.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

Get Report — From $1.20

Recall History (10 recalls)

03V291000Aug 2003

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

ON CERTAIN SPORT UTILITY VEHICLES, A PART OF THE FUEL TANK MAY BECOME DAMAGED WHEN CRASHED IN THE INSURANCE INSTITUTE FOR HIGHWAY SAFETY'S (IIHS) 40 MPH FRONTAL OFFSET CRASH TEST CONDITIONS, DUE TO THE SEVERE IMPACT FORCES GENERATED.

05V327000Aug 2005

SEAT BELTS

ON CERTAIN MINI VANS, IN THE MIDDLE ROW SEATING POSITION, THE SHOULDER PORTION OF THE SEAT BELT MAY BIND IN THE BEZEL TRIM PIECE. THE AFFECTED SEAT BELT BEZEL IS LOCATED ON THE SHOULDER PORTION OF THE SEAT IN THE RIGHT SIDE SEAT OF THE SEVEN PASSENGER MODELS AND THE CENTER SEATING POSITION IN THE EIGHT PASSENGER MODELS.

08V244000Aug 2008

STRUCTURE:BODY:HATCHBACK/LIFTGATE

TOYOTA IS CONDUCTING A SAFETY IMPROVEMENT CAMPAIGN INVOLVING 196,222 MY 2004-2006 TOYOTA SIENNA VEHICLES EQUIPPED WITH POWER REAR LIFTGATE STRUTS. THE GAS STRUTS USED TO HELP LIFT AND SUPPORT THE REAR POWER LIFTGATE COULD WEAR OUT SOONER THAN EXPECTED. AS THE GAS STRUTS DETERIORATE, THE PERFORMANCE OF THE LIFTGATE WILL BEGIN TO DEGRADE AND THE POWER REAR LIFTGATE WILL OPERATE MORE SLOWLY THAN WHEN THE GAS STRUTS WERE NEW.

09V023000Jan 2009

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

TOYOTA IS CONDUCTING A SAFETY IMPROVEMENT CAMPAIGN INVOLVING 26,501 EARLY 2004 MY SIENNA VEHICLES. IN THE EVENT THE RETENTION CLIP USED TO SECURE THE FLOOR CARPET COVER IS MISSING, THE COVER CAN INTERFERE WITH THE OPERATION OF THE ACCELERATOR PEDAL IF THE ACCELERATION PEDAL IS DEPRESSED TO NEARLY THE FULL THROTTLE POSITION.

09V234000Dec 2009

EQUIPMENT:OTHER:LABELS

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2009 SIENNA AND 2009 LEXUS GX PASSENGER VEHICLES. THE VEHICLE CAPACITY WEIGHT ON THE TIRE AND LOADING INFORMATION LABEL AND THE GVWR ON THE CERTIFICATION LABEL IS INSUFFICIENT FOR CERTAIN VEHICLES. SOME VEHICLES WERE ACCESSORIZED THROUGH VEHICLE PROCESSING CENTERS AND HAD ACCESSORIES INSTALLED THAT CAUSED THE VEHICLE TO EXCEED THE GVWR VALUE. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO 110, "TIRE SELECTION AND RIMS," AND 49 CFR PART 567.

+ 5 more recalls in the full report

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

Unlock

The worst model year for the Toyota Sienna is the 2007 — worth knowing if you're cross-shopping years. The biggest problem area is accessories - interior.

2004 Toyota Sienna vs. Class Average (Minivan - 2WD)

This vehicle

1,000

Class avg

641

1.6x the class average — significantly more complaints than typical minivan - 2wd vehicles.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 1,000 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 10 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Toyota Sienna Model Years

2020201920182017201620152014201320122011201020092008200720062005200420032002200120001999199819971996
View all Toyota Sienna years →

2004 Toyota Sienna: Frequently Asked Questions

What is the most common problem with the 2004 Toyota Sienna?
The most commonly reported issue with the 2004 Toyota Sienna is related to the structure:body:door, with 147 complaints filed with NHTSA.
Is the 2004 Toyota Sienna reliable?
The 2004 Toyota Sienna has 1,000 complaints, 26 crash reports, and 3 fire reports filed with NHTSA. This is 1.6x the class average — higher than typical for its segment.
How much does it cost to fix 2004 Toyota Sienna problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2004 Toyota Sienna have any recalls?
Yes, the 2004 Toyota Sienna has 10 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Toyota Sienna problems start?
Based on 781 complaints with mileage data, the median mileage at time of complaint is 57,000 miles. The highest concentration of reported issues occurs in the 60–90K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
RaccoonEagleRoverCat

Get the Full 2004 Toyota Sienna Report

10 sections of AI analysis based on 1,000 owner reports. Know before you buy.

Get Full Report — From $1.20Money-back guarantee
Instant delivery|One-time purchase|No hidden fees