DP: Although the high-pressure fuel pump is covered by Toyota?s New Vehicle Limited Warranty for 5 years or 60,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs related to the presence of a fuel odor in or around the engine bay originating at the high-pressure fuel pump of the subject vehicles.
full bulletin at NHTSA ↗2018 Toyota Highlander fuel system problems
moderate 14 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
Complaints
14
Recalls
0
Avg fix
$1,200
What stands out
Among the 8 model years of Toyota Highlander in our records for fuel system problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TSB: Some 2019 ? 2022 model year Avalon, 2018 ? 2023 model year Camry, 2017 ? 2022 model year Highlander, and 2017 ? 2020 model year Sienna vehicles equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump at idle.
full bulletin at NHTSA ↗TSB: Some 2019 ? 2022 model year Avalon, 2018 ? 2023 model year Camry, 2017 ? 2022 model year Highlander, 2017 ? 2020 model year Sienna, and 2016 ? 2023 model year Tacoma vehicles equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump at idle. Follow the Repair Procedure in this bulletin to address this condition
full bulletin at NHTSA ↗TSB: Some 2017 ? 2019 model year Highlander vehicles may exhibit a knocking noise from the fuel tank area at idle, vehicle stationary, with a full tank of gasoline. Follow the Repair Procedure in this bulletin to address this condition.
full bulletin at NHTSA ↗Due to a clerical error, there are incorrect values in the Fuel Economy and Environment section of the window sticker.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2018 Highlanders report sudden stalling at highway speeds and during normal driving, sometimes requiring multiple restart attempts. One owner's vehicle stalled repeatedly between 55–65 MPH after a recall repair was supposedly completed; two different dealerships could not diagnose the cause, and the vehicle was ultimately traded in. Another owner experienced stalling at various speeds, and a battery replacement made no difference. A third reported check engine light followed by failure to start; the independent mechanic could not replicate the problem, yet it recurred.
The bigger problem is parts. Most complaints center on recall campaigns 20V012000 and 20V682000 (both fuel system, gasoline). Owners received recall notices but have been unable to get repairs done because dealerships consistently report no replacement parts in stock. This delay has persisted for months at some locations. Toyota has not provided timelines for part availability. One owner, stranded in Florida since March with no fix, was denied the option to leave the vehicle at a dealership and was told the rental would be cancelled if she did not return the car within 10 days of any fix availability—no matter the circumstances. Dealers involved include Avondale Toyota, Toyota of Rockwall, and others across multiple states.
Same Toyota Highlander fuel system reports on nearby years: 2019
Failure modes owners describe
Engine stalling while driving
Vehicle stalls suddenly at highway speeds or during normal driving, sometimes requiring multiple restart attempts or extended waiting periods. Occurs with or without warning lights present.
When: 49,000–80,000 miles; timing variable
Symptoms owners cite: Sudden stalling at 55–65 MPH and various speeds; Vehicle stalls moving from stopped position; Sometimes requires jump-start or waiting several hours to restart; Check engine light illuminates in some cases; Rough idle reported in one instance
Codes mentioned: 20V012000, 20V682000
Repairs/costs cited: Dealer #1 reset onboard computer with no lasting fix. Dealer #2 found no issues; owner traded vehicle. Lithia Toyota, Toyota Plaza Mall, Toyota of Rockwall, and independent mechanic unable to duplicate or diagnose root cause. Battery replacement did not resolve the problem.
Recalls/TSBs owners mention: Recall campaigns 20V012000 and 20V682000 issued for fuel system, gasoline. No recall parts available for extended periods. Toyota offered no assistance in case #1. Recall repair remedy unavailable at some dealerships (Avondale Toyota, Toyota of Rockwall).
Fuel system recall repair delay—parts unavailable
Owners received recall notifications but were unable to schedule repairs for extended periods because replacement parts were not in stock at dealerships. Many owners complained that Toyota exceeded reasonable timeframes for completing safety recalls.
When: After recall notice; delays ongoing at time of complaint filing
Symptoms owners cite: No parts availability for recall repair at dealers; Repeated deferrals of service appointments; Manufacturer unable to confirm when parts will arrive; One owner kept without vehicle for months (March to date of complaint)
Codes mentioned: 20V012000, 20V682000
Repairs/costs cited: No repairs completed. Parts confirmed unavailable by VIN Tool in multiple cases. Dealerships contacted include Avondale Toyota, Toyota of Rockwall, Greg LeBlanc Toyota, Holman Toyota, Bayside Toyota, Toyota of Slidell, and dealers in Fairfield CA and Brooklyn NY.
Recalls/TSBs owners mention: Recall campaigns 20V012000 and 20V682000 (Fuel System, Gasoline). Toyota refused to acknowledge receipt of one owner's recall notice (sent letter herself). One owner forced to accept rental car (non-Toyota) starting March 16. Toyota threatened to cancel rental if owner did not return vehicle within 10 days of any fix availability, regardless of circumstances. No parts distribution resolved during complaint windows.
Failed battery and electrical faults
Battery replacement performed at dealer does not resolve stalling or starting issues, suggesting deeper electrical or fuel system faults rather than battery failure.
When: 72,000–80,000 miles
Symptoms owners cite: Vehicle fails to start; check engine light illuminates; Occasional stalling after battery replacement; Jump-start sometimes required
Repairs/costs cited: Battery replaced twice at Toyota Plaza Mall (Brooklyn NY) with no resolution. Battery also replaced at independent mechanic; failure recurred.
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had fuel system trouble with your 2018 Toyota Highlander?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the fuel system problem on the 2018 Toyota Highlander?
It's a documented issue but not catastrophic. 14 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Based on the 14 complaints filed, fuel system issues most often appear around 45,500 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Toyota/Highlander.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.