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2018 Toyota Sienna
Problems & Complaints
Worst 2018 Toyota Sienna Problems by Category
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- engine problems1NHTSA complaints: 5
- fuel system problems1NHTSA complaints: 2
- drivetrain problemsNHTSA: 6
- miscellaneous problemsNHTSA: 4
- interior accessories problemsNHTSA: 4
- body / paint problemsNHTSA: 2
- brakes problemsNHTSA: 1
- exterior accessories problemsNHTSA: 1
- electrical problemsNHTSA: 1
- wheels / hubs problemsNHTSA: 1
- seat belts / air bags problemsNHTSA: 1
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Compare Toyota Sienna Model Years
Curious how the 2018 Sienna compares to other years?
Check out our Toyota Sienna overview to see the most problematic years, worst problems and most recently reported complaints with the Sienna.