YearToAvoid

2025 Toyota Grand Highlander Engine Problems

NHTSA lists 18 engine-related complaints for the 2025 Toyota Grand Highlander, 25% of its 73 total complaints, with a median failure mileage of 15,000 miles. No related recalls are listed. Toyota's 2024 Grand Highlander shows a similar 25% share of engine complaints.

Engine complaints
18
25% of 73
Crashes reported
0
Fires reported
0
Injuries reported
0
Median mileage
15,000 mi
Related recalls
0

Typical engine symptoms owners report

  • Owners report the front grille has open gaps that let stones or road debris strike and puncture the air conditioning condenser or the inverter radiator, causing coolant leaks and loss of power.
  • Several owners describe sudden hesitation or stalling when accelerating from a stop, sometimes followed by a delayed lurch forward.
  • Some owners report the vehicle briefly loses acceleration power while driving at highway speed, with warning messages such as "Hybrid System Malfunction" or "Check Engine" appearing on the display.
  • One owner reported the engine shuddering and shutting off once at a dead stop during acceleration between 0 and 40 mph.
  • One owner reported a radiator fan connection found disconnected after the engine overheated in stop-and-go traffic, with smoke noticed on a later occurrence.
  • One owner reported rodent damage to engine wiring and a vacuum hose, requiring repair.

When 2025 Toyota Grand Highlander engine complaints were filed

First complaint Jun 23, 2025, latest Sep 21, 2026.

2025 Toyota Grand Highlander engine complaints: complaints filed per month4Jun 2025Jul 2025Oct 2025Nov 2025May 2026Jul 2026Aug 2026Sep 2026
18 complaints filed with NHTSA from Jun 2025 to Sep 2026; peak Jul 2026 (4).

Engine recalls for the 2025 Toyota Grand Highlander

No safety recalls on record for this model year.

Engine complaints by Grand Highlander model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 202457 (25%)
  2. 202518 (25%)

Frequently asked questions

How many engine complaints does the 2025 Toyota Grand Highlander have?
NHTSA lists 18 engine-related complaints for the 2025 Grand Highlander, which is 25% of the 73 total complaints filed for the model year.
Is there a recall for the 2025 Toyota Grand Highlander engine?
No related recalls are listed in NHTSA data for this engine problem area on the 2025 Grand Highlander.
At what mileage do engine problems appear on the 2025 Grand Highlander?
The median mileage at failure reported to NHTSA for this problem area is 15,000 miles.
What kind of engine problems do owners report on the 2025 Grand Highlander?
Owners describe radiator or condenser damage from road debris hitting the front grille, hesitation or stalling when accelerating from a stop, and brief loss of power with hybrid system warning messages.
Are engine complaints worse on the 2025 model than the 2024 model?
The share is the same: NHTSA data shows 25% of complaints relate to the engine for both the 2024 and 2025 Grand Highlander model years.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.