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#BS-1999-TOYSIE-5567

1999 Toyota Sienna

Based on reports from 250 owners and 3 recalls for this exact model.

Complaints
250
Crashes
17
Fires
4
Recalls
3
TSBs
101
🟡

Preliminary Verdict

Think Twice

Based on 250 complaints, 17 crashes, 4 fires, and 3 recalls.

See full verdict with buy/skip conditions

Top reported problems

1

radio cd player not working

1 complaints • Severity 10/10

$X,XXX
2

sliding door latch release button sticks

1 complaints • Severity 10/10

$X,XXX
3

transmission failure

1 complaints • Severity 8/10

$X,XXX

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the Structure:body:doorHIGH

21 owners reported structure:body:door issues — failures commonly reported around 91K miles.

!Inspect the Engine And Engine Cooling:engine:gasolineMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

9
0–30K
9
30–60K
19
60–90K
24
90–120K
12
120–150K
10
150K+

Peak failure range: 90–120K miles (24 reports) • Median: 91K 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 (21 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:door21 (8%)
Engine And Engine Cooling:engine:gasoline19 (8%)
Wheels & Tires19 (8%)
Other13 (5%)
Latches/locks/linkages:doors:latch11 (4%)
Steering: Steering Wheel/handle Bar9 (4%)
Suspension:front8 (3%)
Tires:tread/belt8 (3%)

1999 Toyota Sienna: Known Issues & Problem Areas

Structure:body:door Issues

Structure:body:door complaints account for 8% of all reports filed for the 1999 Toyota Sienna, with 21 owners filing complaints with NHTSA. The median mileage at time of complaint is 91,000 miles, suggesting issues tend to surface around the 91K-mile mark.

Engine And Engine Cooling:engine:gasoline Issues

Engine And Engine Cooling:engine:gasoline complaints account for 8% of all reports filed for the 1999 Toyota Sienna, with 19 owners filing complaints with NHTSA. Owners should pay attention to engine and engine cooling:engine:gasoline-related symptoms during test drives and pre-purchase inspections.

Wheels & Tires Issues

Wheels & Tires complaints account for 8% of all reports filed for the 1999 Toyota Sienna, with 19 owners filing complaints with NHTSA. Owners should pay attention to wheels & tires-related symptoms during test drives and pre-purchase inspections.

Latches/locks/linkages:doors:latch Issues

Latches/locks/linkages:doors:latch complaints account for 4% of all reports filed for the 1999 Toyota Sienna, with 11 owners filing complaints with NHTSA. Owners should pay attention to latches/locks/linkages:doors:latch-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

41
00
34
01
22
02
17
03
33
04
12
05
11
06
4
07
3
08
8
09
20
10
2
11
3
12
1
13
5
14
1
16
2
20

Complaints filed with NHTSA by year for the 1999 Toyota Sienna. Recent trend: increasing.

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

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Recall History (3 recalls)

10V160000Oct 2010

STRUCTURE

TOYOTA IS RECALLING CERTAIN MODEL YEAR 1998 THROUGH 2010 SIENNA PASSENGER VEHICLES MANUFACTURED BETWEEN AUGUST 7, 1997 AND JANUARY 4, 2010, CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, KENTUCKY, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON DISTRICT OF COLUMBIA, VIRGINIA, WEST VIRGINIA, AND WISCONSIN. THE SUBJECT VEHICLES ARE EQUIPPED WITH THE SPARE TIRE STOWED UNDER THE VEHICLE. IF THE VEHICLE IS OPERATED IN THE COLD CLIMATE REGIONS OF THE UNITED STATES WHERE ROAD SALT IS FREQUENTLY USED, WATER SPLASHED BACKWARDS WITH HIGH CONCENTRATIONS OF ROAD SALT CAN REACH THE SPARE TIRE CARRIER AND CORRODE THE SPARE TIRE CARRIER ASSEMBLY CABLE.

98E035000Nov 1998

ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

EQUIPMENT DESCRIPTION: AFTERMARKET THEFT DETERRENT SYSTEMS USED ON 1998-1998 TOYOTA RAV4, AVALON, AND SIENNA MODEL VEHICLES DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'S IGNITION SWITCH AND THE VEHICLE'S IGNITION SWITCH WIRING HARNESS PLUGS INTO THE ALARM HARNESS TO COMPLETE THE CIRCUIT. A PERCENTAGE OF THE FEMALE TERMINALS USED IN THE ALARM CONNECTOR WERE FOUND TO BE DEFECTIVE, CAUSING AN "OPEN CIRCUIT" CONDITION WHEN MATED TO THE MALE IGNITION SWITCH TERMINALS.

98V278000

ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES, MINI VANS AND PASSENGER VEHICLES EQUIPPED WITH A THEFT DETERRENT SYSTEMS (TDS) SUPPLIED BY AUDIOVOX CORPORATION AND DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'S IGNITION SWITCH AND THE VEHICLE'S IGNITION SWITCH WIRING HARNESS PLUGS INTO THE ALARM HARNESS TO COMPLETE THE CIRCUIT. A PERCENTAGE OF THE FEMALE TERMINALS USED IN THE ALARM CONNECTOR WERE FOUND TO BE DEFECTIVE, CAUSING AN 'OPEN CIRCUIT' CONDITION WHEN MATED TO THE MALE IGNITION SWITCH TERMINALS.

Recall severity analysis & seller scripts

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

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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.

1999 Toyota Sienna vs. Class Average (Minivan - 2WD)

This vehicle

250

Class avg

503

Below the class average — fewer complaints than typical minivan - 2wd vehicles. A good sign.

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. 250 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 3 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 →

1999 Toyota Sienna: Frequently Asked Questions

What is the most common problem with the 1999 Toyota Sienna?
The most commonly reported issue with the 1999 Toyota Sienna is related to the structure:body:door, with 21 complaints filed with NHTSA.
Is the 1999 Toyota Sienna reliable?
The 1999 Toyota Sienna has 250 complaints, 17 crash reports, and 4 fire reports filed with NHTSA. This is below the class average — a positive sign for reliability.
How much does it cost to fix 1999 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 1999 Toyota Sienna have any recalls?
Yes, the 1999 Toyota Sienna has 3 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 83 complaints with mileage data, the median mileage at time of complaint is 91,000 miles. The highest concentration of reported issues occurs in the 90–120K 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.
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10 sections of AI analysis based on 250 owner reports. Know before you buy.

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