2018 Subaru Crosstrek Problems: All 6 Known Failures | Milo
🕵️ MILO THE MOTOR MOLE · REPORT

2018 Subaru Crosstrek 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
194NHTSA owner complaints
5safety recalls
$5,500worst-case single repair

A solid, unglamorous crossover with a real Achilles heel in the FB20 short-block — buy it for the AWD competence, budget for head gaskets and ignition coils

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.

0k–15k mi● Watch$150–$600VERY HIGH
Ignition coil failures on FB20 engine causing misfires, stalling, or violent shaking; addressed partially by recall WRE-21 but recurs
How to catch it: Even if you got the coil recall done, keep spare OEM coils/plugs on hand and don't ignore a rough idle — coils can fail again outside the recall window.
Source: documented (NHTSA recall)
20k–40k mi● Watch$250–$500MODERATE
TPMS sensor failures — all four dying together is a known pattern on 2018 models
How to catch it: When you rotate tires, have the shop check TPMS battery/sensor health so you catch failures one at a time instead of all at once.
Source: multi-source pattern (AI synthesis)
40k–70k mi● Critical$0–$5,000MODERATE
Excessive oil consumption on early FB20 short blocks (piston ring design) requiring monitoring or short-block replacement under extended warranty
How to catch it: Do an oil consumption test at a Subaru dealer before 100k/8yr warranty expires — document it even if consumption seems normal now.
Source: multi-source pattern (AI synthesis)
60k–90k mi● Plan$300–$700MODERATE
Rear wheel bearing and hub failures, sometimes with premature wear/howling; some cars got quiet 'goodwill' backing plate fixes not a public recall
How to catch it: If you hear a rear howl that changes pitch with speed, get the wheel bearing checked immediately and ask Subaru about the backing-plate goodwill repair before paying full price.
Source: multi-source pattern (AI synthesis)
80k–120k mi● Plan$1,500–$2,500MODERATE
Head gasket seepage at the external coolant/oil passages — less catastrophic than older EJ-series Subarus but still occurs on FB20
How to catch it: Watch coolant level monthly and address any slow coolant loss immediately — catching it early avoids overheating damage.
Source: multi-source pattern (AI synthesis)
100k–150k mi● Critical$3,500–$5,500MODERATE
CVT (TR580) shudder or failure, especially on cars with skipped fluid changes
How to catch it: Do a CVT fluid change every 30k miles regardless of what the manual says — this is the single biggest thing you can do to avoid a $4k transmission.
Source: multi-source pattern (AI synthesis)

Buying one of these?

Knowing what breaks is half of it. Milo's full report gives you the other half — for your exact car:

Get the full 2018 Subaru Crosstrek report  →
First report free · then $10

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.

Full 2018 Subaru Crosstrek overview · All researched vehicles · milomotormole.com