There are 5 owner-reported engine complaints for the 2024 Toyota Grand Highlanderin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
All lights and warning system alerts suddenly came on. Hybrid System Malfunction. Once towed to dealership; stone came through large gap in front grill and put a hole in internal radiator. Not covered under warranty. Design flaw appears to be a problem in front grill.
AC condenser has a leak and AC cooling not working-blowing hot air, making vehicle very hot inside. Toyota claiming from road debris damage, front grill not protecting condenser unit enough to allow this not to happen and will not cover under warranty. Seems like a manufacturer grill design problem not consumer. Toyota has no fix to the problem to protect condenser unit from this happening over and over again.
It has a hard time shifting at times when the car has just been started
At 2300 miles we got hybrid malfunction on the dashboard, we called Toyota and had the car towed to the dealer. Based on what dealer mentioned and showed picture - there were fragments in 2 cylinders and the 3rd cylinder basically dis-integrated.
When accelerating from a stop, there is a hesitation or lack of power when stepping on the accelerator. Releasing the accelerator and depressing it again will get the car going. The engine also revs high at low speeds before dropping to the next gear.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026