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Fuel systemPart report

2026 Toyota Grand Highlander Fuel system Problems

Complaints
6about this part
Share
13%of 48 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 6 complaints about the fuel system of the 2026 Toyota Grand Highlander, 13% of the 48 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My 2026 Toyota Grand Highlander XLE has a recurring gasoline smell near the rear driver’s side after long trips or when parked with the engine idling. The source of the odor and the specific component involved are unknown. I am concerned about a possible fuel or vapor leak and the potential fire risk to myself and my passengers.”

NHTSA complaint #11764246, filed 2026-09

“Periodically, when you apply the gas, there is no power. The gas pedal is dead. This obviously is a hazard when trying to maneuver through traffic. The problem is random and cannot be reproduced at will. The dealership said they could do nothing about it if they could not reproduce the issue. Vehicle is still under the manufacturer warranty.”

NHTSA complaint #11767296, filed 2026-09

“road debris entered into front grill though the holes in grill adn damaged condensor fins causing vehicle to loose propulsion. Vehicle would not travel over 25 mph after the incidnet. This is safety issue as vehicle slowed from 55MPH to 25MPH rather abruptly on highway. Multiple lamps came on dash at time of incident and were reatained untill fixed (non warranty repair)”

NHTSA complaint #11759168, filed 2026-08

“Failed System: Fuel Injector Failure (?) at high speeds, under load (uphill), causing an immediate and life threatening loss of power. While traveling on the highway, going up mountainous areas, the vehicle loses power and shakes violently. During multiple repairs/visits, the dealerships state that it is the failure of fuel injectors. They are replaced, and it happens again with the same explanation. Safety: Three times my family has lost power at 70mph while traveling uphill surrounded by many cars. …”

NHTSA complaint #11740216, filed 2026-05

“Design flaw of front grille of vehicle causing major damage. Due to the large gaps in front grille, the vehicle is susceptible to rock damage to the coolant system. Under normal highway driving, coolant started to leak and immediate power loss put my wife at risk. She was unable to accelerate to maintain speed while on a busy highway. There are no immediate signs for damage since any small rock can pass through the grille and create multiple punctures. You don't know something is wrong until symptomatic and then your placed at risk and also others around you.”

NHTSA complaint #11768711, filed 2026-10

Fuel system: other model years

YearComplaintsShare of year
2026613%
20251215%
20243816%

Other parts of the 2026 Toyota Grand Highlander

Other or unknown
14 complaints
Body and structure
10 complaints
Engine
8 complaints
Brakes
3 complaints
Electrical system
3 complaints
Forward collision avoidance
3 complaints
Seats
3 complaints
Transmission and drivetrain
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Vehicle speed control
2 complaints
Air bags
1 complaints
Lane departure
1 complaints

← All problems reported for the 2026 Toyota Grand Highlander

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology