Owners report fuel pump failures as the dominant complaint. Low-pressure fuel pump malfunction causes stalling, loss of power while driving, inability to start (sometimes after multiple attempts), hesitation, and rpm surges followed by stalls. Failures range from 9,000 miles (brand new vehicles) to 123,000 miles. One owner had a fuel pump replaced but the failure recurred. High-pressure pump failure at 90,000 miles caused sudden deceleration from 80 mph to 20 mph and complete loss of braking function—a serious safety issue.
Vapor control problems present as fuel backing up through the fuel cap when the tank is full and the car is parked in hot weather. One owner's dealer replaced the charcoal canister; the problem came back a year later and the second dealer blamed owner overfilling and refused further diagnosis, despite the vehicle still under warranty. Toyota denied responsibility.
Secondary fuel system damage includes a fractured fuel tank and protective shield at 10,000 miles that caused fuel leakage, and a fractured vacuum pump at 95,000 miles causing oil leaks.
A significant number of owners received recall notifications (NHTSA Campaign 20V682000 and 20V012000) but dealers reported repair parts unavailable for extended periods. One owner had the recall repair performed but the check engine light reappeared within 12 hours, and another reported abnormal fuel odor after recall service.
Failure modes owners describe
Low-pressure fuel pump failure
Low-pressure fuel pump loses function, causing loss of motive power, stalling, difficulty starting, hesitation, and surge/deceleration events. One owner replaced the pump but failure recurred.
When: 9,000 to 123,000 miles; some within first month of ownership (new vehicle)
Symptoms owners cite: Vehicle loses motive power while driving; Engine stalls while driving at various speeds; Difficult or failed start-up requiring multiple attempts; Vehicle hesitation/sputtering at speed; RPM surges on startup then stalls; Engine shuts off with message on instrument panel; Abnormal thumping noise from engine
Codes mentioned: P0087 (Fuel Pump)
Repairs/costs cited: Owners report fuel pump replacement required; one case shows failure recurred after replacement. Battery, alternator, and drive belt were also replaced in one case without resolving the issue.
Recalls/TSBs owners mention: NHTSA Campaign 20V682000 and 20V012000 address fuel system defects; however, multiple owners report that recalled parts were unavailable for extended periods. Manufacturer confirmed some VINs not included in recall despite similar symptoms.
High-pressure fuel pump failure
High-pressure fuel pump malfunction causes sudden loss of power and braking function during highway driving. Dealer diagnosis confirmed high-pressure fuel pump failure.
When: Approximately 90,000 miles
Symptoms owners cite: Vehicle independently decelerates from 80 MPH to 20 MPH without driver input; Loss of braking functionality with brake pedal depressed to floor; Multiple unknown warning lights illuminated
Repairs/costs cited: Vehicle not repaired. Owner stated vehicle was not included in recall despite receiving recall notification.
Recalls/TSBs owners mention: Manufacturer stated VIN not included in recall.
Fuel system vapor/overflow issue (charcoal canister and purge control)
Fuel backs up through intake cap on hot days when tank is full; appears to be charcoal canister or purge valve malfunction causing excessive fuel vapor and overfill condition. Issue persists even after charcoal canister replacement.
When: One month after purchase (new vehicle); recurring after one year and repair
Symptoms owners cite: Fuel backs up from fuel intake cap when parked in hot weather; Overflow occurs when fuel tank is full; Check engine light may illuminate; Stalling and independent acceleration events linked to purge valve/charcoal canister failure
Repairs/costs cited: Dealer attempted charcoal canister replacement but problem recurred within one year. Subsequent dealer visit found no defect and blamed owner overfilling; declined further investigation despite vehicle under warranty.
Recalls/TSBs owners mention: Toyota confirmed issue reported but denied responsibility despite vehicle under warranty. Owner expressed concern about explosion hazard from fuel overflow.
Fuel tank and shield fracture
Fuel tank and its plastic protective shield fractured, causing fuel leak at low mileage.
When: 10,000 miles
Symptoms owners cite: Abnormal thumping noise from underneath vehicle; Fuel leak detected by alert from other motorist
Repairs/costs cited: Dealer diagnosed fractured fuel tank plastic shield and plastic fuel tank. Vehicle not repaired.
Vacuum pump fracture
Vacuum pump fractured into two pieces, causing oil leak from engine.
When: Approximately 95,000 miles
Symptoms owners cite: Oil leak from engine without warning
Repairs/costs cited: Independent mechanic discovered fractured vacuum pump. Vehicle not repaired.
Recalls/TSBs owners mention: Owner linked failure to NHTSA Campaign 20V682000 but VIN not included in recall. Neither manufacturer nor dealer notified.
Check engine light persistence after recall repair
Check engine light reappears shortly after manufacturer recall repair was completed, indicating repair did not resolve underlying fuel system problem.
When: Less than 12 hours after recall repair
Symptoms owners cite: Check engine warning light reappears after being serviced for recall
Repairs/costs cited: Vehicle serviced under NHTSA Campaign 20V682000 at dealer but check engine light returned immediately.
Recalls/TSBs owners mention: Recall repair performed under NHTSA Campaign 20V682000 but failure persisted. Manufacturer notified; vehicle not repaired.
Abnormal fuel odor after recall service
Strong abnormal fuel odor from rear of vehicle after recall repair was performed.
When: Discovered immediately after pickup from recall service (approximately 8,000 miles)
Symptoms owners cite: Abnormal fuel odor from rear of vehicle
Repairs/costs cited: Vehicle serviced under NHTSA Campaign 20V012000 at dealership.
Recalls/TSBs owners mention: Manufacturer informed of issue; case filed. Dealer referred owner to manufacturer.
Synthesized from 28 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.