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Other or unknownPart report

2026 Toyota Grand Highlander Other or unknown Problems

Complaints
14about this part
Share
29%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 14 complaints about the other or unknown of the 2026 Toyota Grand Highlander, 29% of the 48 complaints for this model year. 1 of these say a crash was involved, according to the filers.

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.

“I recently purchased a Toyota Grand Highlander just two days ago, and I’m experiencing a serious issue that is affecting my ability to drive the vehicle safely. At speeds between 25–40 mph, there is a significant cabin boom and echo inside the vehicle. This creates a pressure sensation in my ears, causing nausea, disorientation, and physical discomfort. I’ve only driven about 50 miles, and the symptoms are severe enough that I cannot continue driving the vehicle.”

NHTSA complaint #11697688, filed 2025-11

“My 2026 Toyota Grand Highlander Hybrid sunroof shattered spontaneously while driving - no impact, no prior damage. I was driving at 20-25 mph on a feeder way, approaching a signal”

NHTSA complaint #11732819, filed 2026-04

“The seal around my moon roof keeps coming out & now when it rains, it's coming through my car and ruining my seats. my seats are always soaked when it rains.”

NHTSA complaint #11773115, filed 2026-10

“Bought the vehicle in October 2025 everything was going fine. I went away for a few days came back and the A/C was not working. I took it to the dealership where I purchased it and was told outside influence and they refused to repair unless I pay $1900. I have bumper to bumper coverage for 5 years, My point is for a SUV that is costing over $50,000. If the condenser is such a sensitive piece of equipment it shouldn't not be placed in front of the vehicle unprotected. This is a design flaw because the SUV is made to be driven on the highway.”

NHTSA complaint #11745755, filed 2026-06

“Summary: While turning into my driveway, the vehicle surged forward unexpectedly as I moved my foot from the accelerator to the brake pedal. The brake pedal felt normal, and none of the vehicle’s safety systems appeared to activate. The vehicle struck my husband’s parked car and then my garage door, damaging both, and I sustained minor injuries. Details: On 10/8/26, at approximately 5:58PM, I was driving home from work and turning into my two-car driveway. I normally park to the left of my husband’s vehicle, which was parked in the driveway. …”

NHTSA complaint #11773404, filed 2026-10

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
20261429%
20252328%
20246025%

Other parts of the 2026 Toyota Grand Highlander

Body and structure
10 complaintsEngine
8 complaintsFuel system
6 complaintsBrakes
3 complaintsElectrical system
3 complaintsForward collision avoidance
3 complaintsSeats
3 complaintsTransmission and drivetrain
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsLane 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 Oct 31, 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