VVT-i / Cam Timing Over-Retarded (Oil Sludge or Solenoid)
medium- Typically appears
- 60–150k mi
- Estimated repair
- $150 – $900
2017 Toyota
SiennaVan/Minivan
Van/Minivan
The 2017 Toyota Sienna is the third generation of Toyota's long-running minivan, sitting in its second major refresh year with a 3.5L V6 now featuring both direct and port injection (DMPFI). It's a practical, spacious family hauler with a strong reliability record and one of the few minivans still offered in all-wheel drive — though this FWD example is the most common configuration sold. At around 8 years old now, it's well into its sweet spot: depreciation has done its work, most first-owner quirks are known, and the platform is proven. The Sienna competes directly with the Honda Odyssey and Chrysler Pacifica. Where the Odyssey edges it out on handling refinement and the Pacifica on in-cabin tech, the Sienna holds its own on long-term durability and resale value — typical Toyota traits. The 2017 model year also added standard Toyota Safety Sense P (pre-collision, lane departure, auto high-beams) across most trims, which is a genuine safety upgrade. For a Lake Geneva family, this is a capable year-round vehicle on FWD with good ground clearance for light snow. The V6 has plenty of power for highway runs and towing the occasional boat trailer (up to 3,500 lbs). Budget for sliding door and power liftgate maintenance as the van ages — those systems are the most common source of nuisance repairs on high-mileage examples.
Reliability
4/5
Verified data
Specs shown for Sienna 2WD — the most common configuration.
Other trims may vary in engine, drivetrain, or fuel economy. Sign in to see your vehicle's exact specs.
Engine
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Drivetrain
FWD
Fuel
Gasoline
MPG
19 city / 27 hwy / 22 combined
Seats
—
Doors
—
Body
Minivan - 2WD
Overview
AI-curatedThe 2017 Toyota Sienna is the third generation of Toyota's long-running minivan, sitting in its second major refresh year with a 3.5L V6 now featuring both direct and port injection (DMPFI). It's a practical, spacious family hauler with a strong reliability record and one of the few minivans still offered in all-wheel drive — though this FWD example is the most common configuration sold. At around 8 years old now, it's well into its sweet spot: depreciation has done its work, most first-owner quirks are known, and the platform is proven. The Sienna competes directly with the Honda Odyssey and Chrysler Pacifica. Where the Odyssey edges it out on handling refinement and the Pacifica on in-cabin tech, the Sienna holds its own on long-term durability and resale value — typical Toyota traits. The 2017 model year also added standard Toyota Safety Sense P (pre-collision, lane departure, auto high-beams) across most trims, which is a genuine safety upgrade. For a Lake Geneva family, this is a capable year-round vehicle on FWD with good ground clearance for light snow. The V6 has plenty of power for highway runs and towing the occasional boat trailer (up to 3,500 lbs). Budget for sliding door and power liftgate maintenance as the van ages — those systems are the most common source of nuisance repairs on high-mileage examples.
Known for
- One of the most durable minivans on the market — commonly hits 200k+ miles
- Only minivan available with AWD (though this unit is FWD)
- Dual-injection 3.5L V6 delivers strong, smooth power
- Toyota Safety Sense P standard on most 2017 trims
- Cavernous interior with flexible seating configurations
Best for
- Large families needing reliable daily transportation
- Road-trip and highway driving
- Buyers who prioritize long-term ownership over a shorter cycle
- Light towing (boat, small camper trailer up to 3,500 lbs)
Watch for
- Power sliding door actuator and cable failures on higher-mileage units
- VVT-i oil sludge if oil changes were neglected — check service history carefully
- Power liftgate strut and motor wear after 80k+ miles
- Rust on underbody components, especially on Wisconsin-road salt-exposed examples
- Transmission fluid often overlooked — should be serviced every 60k mi
Common issues by mileage
6 knownVVT Solenoid Circuit Performance (Intake/Exhaust Valve Control)
medium- Typically appears
- 70–130k mi
- Estimated repair
- $120 – $450
Power Sliding Door Failure (Cable, Motor, or Actuator)
high- Typically appears
- 80–180k mi
- Estimated repair
- $200 – $750
Power Liftgate Strut and Motor Wear
medium- Typically appears
- 80–150k mi
- Estimated repair
- $150 – $500
Oxygen Sensor / A/F Sensor Heater Circuit
low- Typically appears
- 100–160k mi
- Estimated repair
- $180 – $420
Underbody Rust (Subframe, Heat Shields, Brake Lines)
high- Typically appears
- Any — age and salt exposure dependent
- Estimated repair
- $200 – $2,000
Maintenance schedule
- 1 Every 5,000 mi or 6 months (use full-synthetic 0W-20) Engine oil and filter change
The dual-injection V6's VVT system is extremely sensitive to dirty or degraded oil. Sludge in oil passages is the #1 cause of expensive cam timing failures on this engine. Do not stretch to 10k mi intervals on a used vehicle with unknown history.
- 2 Every 60,000 mi Transmission fluid change
Toyota lists this as 'inspect only' under normal conditions, but the 8-speed automatic benefits from a drain-and-fill at 60k intervals, especially on used vehicles where fluid history is unknown. Dark or burnt-smelling fluid means change it immediately.
- 3 At 100k mi or if any P0012/P0015/P0022/P0025 codes appear VVT solenoid screen cleaning
The small screens on the VVT oil control solenoids trap debris. Cleaning them at high mileage can prevent full solenoid replacement and heads off timing issues before they start.
- 4 Every 30,000 mi or annually Sliding door track lubrication and cable inspection
Dry or contaminated tracks accelerate cable and motor wear. A 10-minute cleaning and lubrication with the right grease can prevent a $400+ cable replacement. Inspect cable ends for fraying at the same time.
- 5 Every fall before Wisconsin winter Battery load test
Cold-cranking demand in sub-zero temps will expose a weak battery. The Sienna's power features (sliding doors, liftgate, heated seats) draw significant parasitic load. A battery over 4 years old should be tested and replaced proactively.
- 6 Every 3 years regardless of mileage Brake fluid flush
Brake fluid is hygroscopic — it absorbs moisture over time, lowering its boiling point. In a Wisconsin winter with frequent hard stops, degraded fluid increases fade risk. Three years is a practical interval for a daily driver.
- 7 Every 100,000 mi or 5 years Coolant system inspection and flush
Toyota's long-life coolant is genuinely long-lasting, but on a 2017 vehicle approaching 8 years old, a flush and refill with fresh Toyota Red coolant is due regardless of mileage. Check hoses and the radiator cap at the same time.
- 8 Every spring and fall Underbody wash and undercoating inspection
Lake Geneva roads are heavily salted October through March. A thorough underbody pressure wash in spring removes salt before it can work into seams and brake lines. Fall is a good time to inspect and touch up any exposed bare metal before salt season restarts.
Always defer to the manufacturer's service manual for warranty-mandated intervals.
Cost of ownership
Annual maintenance
$600 – $1,400
Fuel
At 22 MPG combined and roughly 15,000 mi/yr, expect around $1,900–$2,400/yr at current Midwest gas prices (~$3.30–$3.80/gal). Highway-heavy use improves this noticeably.
Insurance
Typically $1,100–$1,600/yr for a family driver in the Lake Geneva area on a vehicle this age. Minivans rate favorably — low theft rates and family-driver demographics keep premiums reasonable.
The 2017 Sienna is a relatively affordable minivan to own once past the purchase price. Routine maintenance (oil, tires, brakes, fluids) runs $600–$900/yr under normal conditions. Budget an extra $300–$500/yr as a repair reserve for sliding door and liftgate wear on higher-mileage examples. Fuel costs are the largest ongoing expense — the V6 doesn't sip fuel, but it's in line with other full-size family haulers. Compared to a same-age Chrysler Pacifica or older Odyssey, the Sienna typically has lower unplanned repair frequency.
Seasonal care
Lake Geneva, WI Winter
- Load-test the battery every October — the combination of cold cranking and heavy electrical draw from sliding doors, seat heaters, and rear climate will strand you if the battery is marginal.
- Switch to winter-rated tires by late October. The FWD Sienna handles light snow well but has a high center of gravity; winter tires make a meaningful difference in stopping distance on icy Wisconsin roads.
- Top off washer fluid with a -20°F or -40°F rated fluid. The large windshield and rear glass go through fluid quickly in salt conditions.
- Flush the sliding door tracks and liftgate seals with a silicone spray before freezing temps arrive — frozen, contaminated tracks can blow a door cable or strip a motor.
- Keep fuel tank at least half-full through winter to prevent fuel line condensation and ensure you're never stranded with a low tank in sub-zero temps.
- Inspect brake lines and rubber brake hoses for salt corrosion every fall — a compromised line is a safety emergency waiting to happen on a vehicle this age in the salt belt.
Summer
- Check tire pressure monthly — every 10°F rise in ambient temperature adds roughly 1 PSI. Overinflated tires from summer heat reduce contact patch and increase wear.
- Test the A/C system in May before summer heat arrives. The Sienna has a large cabin and a three-zone climate system; a weak refrigerant charge will struggle badly on hot days with a full load of passengers.
- Inspect the cabin air filter before summer — a clogged filter forces the A/C blower to work harder and reduces airflow to rear passengers.
- Check coolant level and condition. The engine works harder in stop-and-go summer traffic, especially with A/C running; ensure the overflow reservoir is at the proper level.
- Inspect wiper blades — Wisconsin summer thunderstorms are aggressive, and UV-degraded wiper blades that looked fine in winter will streak badly in heavy rain.
Comparable vehicles
No comparable vehicles documented yet.