2018 Honda Odyssey vs 2018 Toyota Sienna
Reliability Side-by-Side
2018
Honda Odyssey
Grade B
A superb family hauler, but its 10-speed transmission and electronics require vigilance and may lead to elevated repair costs.
2018
Toyota Sienna
Grade A-
A supremely reliable family workhorse, the Sienna offers exceptional long-term value despite minor common annoyances.
Best For
Best for Reliability
2018 Toyota Sienna
Score 89/100 vs 82/100
Best for Lowest Risk
2018 Toyota Sienna
low risk
Best for Lowest Annual Upkeep
2018 Toyota Sienna
$400-600
Cost of Ownership
| Line Item | 2018 Honda Odyssey | 2018 Toyota Sienna★ |
|---|---|---|
| Annual Maintenance | $500-700 | $400-600 |
| Moderate Repairs | $1,000-2,500 occasionally (e.g., sliding door, infotainment) | $500-1,500 occasionally |
| MPG (City/Hwy) | 19 / 28 | 19 / 27 |
| MSRP (New) | $30,090 | $31,115 |
Major-failure risk and insurance outlook for each vehicle are in their full reliability reports.
Biggest Risks on Each
2018 Honda Odyssey
10-speed Automatic Transmission
40,000-80,000 mi
Infotainment System
15,000-50,000 mi
Power Sliding Doors
30,000-70,000 mi
2018 Toyota Sienna
Power Sliding Doors
40,000-80,000 mi
Infotainment System
Any mileage, often early in ownership mi
Suspension Components
60,000-100,000 mi
Get the Full Report on Each
7-system breakdown, mileage danger zones, repair costs, and expert verdict for each vehicle.
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Editorial Take
The 2018 Honda Odyssey and 2018 Toyota Sienna stand as the dominant forces in the minivan segment, frequently cross-shopped by families prioritizing practicality, safety, and comfort. These vehicles appeal to buyers needing cavernous cargo space, seating for up to eight passengers, and family-friendly features for daily commutes and long road trips alike. Key decision factors often revolve around driving dynamics, interior flexibility, available technology, long-term reliability, and overall value. While both offer impressive capability, their distinct approaches to these attributes create a compelling choice for discerning buyers. HEAD-TO-
Reliability & Common Issues
2018
Value & Cost of Ownership
When new, the 2018 Honda Odyssey and 2018 Toyota Sienna had very similar starting MSRPs, with the Sienna typically being slightly more expensive, especially when considering its unique AWD option. In the used market (as of 2024), both vehicles maintain strong resale values, a testament to their reliability and popularity. The Sienna often holds a marginal edge in resale value due to its longstanding reputation for bulletproof reliability and the desirability of its AWD option in certain regions. Insurance costs for both minivans are generally comparable. They fall into similar risk categories and average premiums are more dependent on the specific trim level, driver's history, and geographical location. Maintenance costs for both Honda and Toyota vehicles are typically lower than the segment average. Both brands are known for their dependable engineering and readily available parts. Scheduled maintenance for both minivans involves routine fluid changes, tire rotations, and brake inspections. Major services like timing belt replacement (on some older V6 engines, but not necessarily this generation for the Odyssey) or transmission fluid flushes become considerations at higher mileages. Overall, neither vehicle presents a significant cost burden for routine maintenance, making them excellent long-term ownership propositions.
Parts & Accessories for These Vehicles
Products for 2018 Honda Odyssey
Products for 2018 Toyota Sienna
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