2017 Toyota Highlander problems: every known failure
All 6 documented failure points for this exact year — what goes wrong, when,
what it costs, and how to spot it on a test drive. Free, from Milo's research on this model.
6known failure points
262NHTSA owner complaints
4safety recalls
$4,500worst-case single repair
A dependable family hauler with one real Achilles heel — the 8-speed UA80 transmission whine — but otherwise one of the safest used SUV buys of its era.
Every documented failure, earliest first
Ordered by the mileage the problem typically appears. VERY HIGH
confidence means it's tied to a documented NHTSA recall, and 2 of these are rated Critical.
60k–100k mi● Plan$600–$1,200VERY HIGH
Water pump failure (V6 models) — coolant leak, sometimes into cabin
How to catch it: Have the water pump inspected/replaced proactively during any timing-chain-adjacent service around 80k to avoid a roadside failure.
Source: documented (NHTSA recall)
70k–120k mi● Critical$300–$4,500MODERATE
UA80 8-speed transmission whine/shudder (documented in TSB T-SB-0160-18), sometimes escalating to full replacement
How to catch it: Do a transmission fluid drain-and-fill every 60k miles even though Toyota calls it 'lifetime fluid,' and get any whine diagnosed immediately before it worsens.
Source: multi-source pattern (AI synthesis)
80k–120k mi● Critical$400–$900MODERATE
In-tank fuel pump failure/stall (subject of a related but not universally applied recall)
How to catch it: Check your VIN against the fuel pump recall list even if you think you're excluded — many owners with symptoms found they weren't covered and paid out of pocket.
Source: owner-reported (16 NHTSA complaints)
90k–130k mi● Watch$200–$600MODERATE
Spark plug fouling / ignition coil issues triggering check engine light
How to catch it: Replace all spark plugs proactively at 100k using OEM iridium plugs rather than waiting for a misfire code.
Source: owner-reported (15 NHTSA complaints)
100k–150k mi● Plan$1,500–$4,000MODERATE
Timing chain wear leading to rattle and, in rare cases, chain guide/tensioner failure requiring engine teardown
How to catch it: Never skip oil changes — timing chain stretch on this V6 is almost always tied to extended oil-change intervals and sludge buildup.
Source: owner-reported (15 NHTSA complaints)
100k–160k mi● Watch$800–$1,500VERY HIGH
Sunroof glass spontaneous shattering (known issue across Toyota/Lexus models with panoramic roofs)
How to catch it: Apply a sunroof shatter-resistant film if you road-trip often or live somewhere with big temperature swings — cheap insurance against a startling and pricey repair.
Source: documented (NHTSA recall)
Buying one of these?
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- Your next 15,000 miles, forecast
- Hidden features & money-savers
Get the full 2017 Toyota Highlander report →
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Findings blend documented NHTSA recalls and complaints with patterns
synthesized from owner communities. Confidence is labeled on every item; an inference is
never presented as documented fact. Always inspect the specific vehicle and verify open
recalls by VIN before buying.