2024 Toyota Grand Highlander driver assistance problems

Filed Oct 21, 2026 · Driver assistance · NC

On XXX, at about 2:00 PM we were driving south on I95 somewhere in [XXX] when we heard a very loud noise. Thinking it was a rock hitting the windshield we looked but could see no cracks or chips so we kept driving on our trip to [XXX]. The next day it was windy and we thought it was unusually noisy inside the vehicle but we just thought it was the wind. After driving around in [XXX] we said it was unusually noisy inside so I said I would stand on the door sill to look at the roof and that’s when I saw the hole in the sunroof. That night, Sunday, XXX, I called our insurance company to report the damage. They said that an adjuster would contact us on Monday. Meanwhile I started to “Google” issues with sunroofs and there I found out about imploding glass sunroofs. On Monday, XXX, I went to the Toyota service in [XXX].and had them look at the damaged sunroof. The service advisor mentioned he had never seen this damage. He said they could replace it but would have ordered parts which could take a couple days. I said to go ahead as we were only here until Saturday. That day, Monday XXX I called the insurance company to update them. I also stopped at the Toyota dealer to talk with them. I mentioned the “Google” reports about sunroof issues. The advisor said there were no recalls or anything from Toyota on this. He did say that an insurance adjuster had contacted him and said they were very busy but would try to get there to look at the vehicle on Tuesday. We are thankful we did not have the sunroof cover open as we would have had glass all over inside the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 20, 2026 · Driver assistance, Transmission · WA

Incident occurred on XXX at 9:46AM PST, [XXX]. When applying brakes normally to come to a gradual stop behind another vehicle stopped at a stop sign on a slight decline, PCS collision warning lights enabled and vehicle lurched forward while my foot was on brake. This is not to be confused with automatic braking behavior as front collision warning lights in driver information center flashed red. Rather, vehicle lurched forward as if accelerating once within feet of vehicle in front. Then, vehicle rocked front to back multiple times with my foot still on the brake, as if Drive and Reverse was being quickly and intermittently engaged back and forth about 1 second apart. Had my foot not been firmly on the brake, the vehicle felt like it would travel forward and then back (colliding with vehicle in front and in back) without driver inputs.  While car continued to lurch forward and then back, I shifted transmission into Park then back in Drive, and behavior stopped. There was a loud clunk as the car engaged in Drive. This has occurred 3 times over the past 2.5 years. What is even more curious, is that this occurred all 3 times at the same stop sign, which is at a slight decline. This leads me to deduce that somehow the angle of decline or other specific condition at this stop sign is somehow contributing or confusing vehicle systems, as bizarre as this sounds. AC was on during at least one preceding event but not during yesterday's event. Others have observed similar events on on-line forums, but I don't know if they have reported this given how infrequently it occurs. Vehicle has 28000+ miles, and I stop at this exact location at least 3 times per week, with behavior observed only 3 times. Statistically, it seems probable that there must be some element (angle of decline?) at this location that somehow confuses vehicle systems, triggering this dangerous unintended acceleration and reversing behavior. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 18, 2026 · Driver assistance · MS

My car read system malfunction and come to find out there was corrosion with the wires in the internal circuit of the driver side mirror that prevents it from warning you of blind spots and pre-collision.

Filed Apr 15, 2026 · Driver assistance · 22,679 miles · MN

The contact owns a 2024 Toyota Grand Highlander. The contact stated that the display was not functioning properly, and the screen was blank while operating. The contact stated that after the "Get Started" prompt was displayed and selected, the screen would go blank. Additionally, the back over prevention camera was inoperable. The vehicle was taken to the dealer; however, the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 22,679.

Filed Apr 2, 2026 · Driver assistance · TN · crash

It didn't work it didn't brake or didn't have an alert in which caused an accident

Filed Mar 11, 2026 · Driver assistance, Electrical · VA

This is regarding recalls for my 2024 Toyota Grand Highlander Hybrid Platinum Max. The vehicle has been in the possession of Koons Tysons Toyota since December 23, 2025 (80 days as of 3/11/26), for repair of Safety Recall #25TA13 and #25TB13 the federal safety agency 25V744) involving the Panoramic View Monitor System/Parking Assist ECU. The dealership has explicitly informed me that the vehicle is unsafe to operate and have therefore kept it. Toyota and its authorized dealer have made three (3) repair attempts to correct this safety defect. Two separate replacement components were ordered and installed without resolving the issue. A third required component is currently on backorder with no definitive ETA or repair completion date, as the date keeps getting pushed. We are not being updated and are not receiving information from the dealership and Corporate about the details about the problem and nature of the delay. Toyota has obligations under federal recall law administered by the federal safety agency to remedy safety defects within a reasonable time and at no charge to the consumer. An indefinite inability to complete a safety recall repair due to parts unavailability raises serious concerns under those obligations. Furthermore, a previous recall #25TA08 (the federal safety agency 25V595) which was supposedly completed on October 14, 2025 by the same dealership is showing as INCOMPLETE in the vehicle record with the federal safety agency.

Filed Sep 4, 2025 · Driver assistance, Electrical · 40,000 miles · MD

The contact owns a 2024 Toyota Grand Highlander. The contact stated that there was a small crack on the windshield on the driver's side at the top where the windshield meets the frame. The contact stated that the crack had started to expand. The contact recently noticed another crack in the center of the windshield, starting at the bottom. The contact stated that both cracks were approximately 5 inches long and expanding. The contact had not struck a rock or road debris for the windshield to crack. The contact had taken the vehicle to a dealer to be diagnosed and was advised by the dealer that the cracks were the result of small stones being kicked up by other vehicles. The vehicle was not repaired. Additionally, the contact had been experiencing failures of the infotainment screen going black, and the side-view mirror Blind Spot warning lights not functioning as designed. The vehicle had been taken to the same dealer several times, and the dealer resolved the issue. The contact stated that the infotainment screen failure had reoccurred. The manufacturer was not informed of the failure. The failure mileage was approximately 40,000.

Filed Apr 4, 2025 · Brakes, Driver assistance · OH

While slowing to a stop on a slight incline (an interstate off-ramp), when almost stopped, the car started bucking as if the brake pedal was being slammed on, then released, slammed on again, then released, and repeated for maybe 2 seconds. I quickly hit the "P" (Park) button to take it out of gear and it stopped. No warning lights or anything came on and it drove perfectly fine afterwards. It felt just like the emergency braking and the car thinks you're going to hit something. It was very strong and jarring. Happened a 2nd time on April 4 in the same circumstances - driving downhill on a highway off-ramp and stopping at red light at the end of the ramp.

Filed Apr 1, 2025 · Brakes, Driver assistance · 22,554 miles · NY

The contact owns a 2024 Toyota Grand Highlander. The contact stated while the vehicle was stationary, the contact moved the third-row seat, and the seat made and abnormal sound. There were no warning lights illuminated. The contact then took the vehicle to the dealer and the dealer made unknown repairs. On a separate occasion the contact became aware the bottom of the window was fractured. The contact then taped the door on the bottom of the window. The system function error message was displayed. On a separate occasion, the contact stated while driving 25 MPH, the rearview camera sporadically failed to respond. The system function error message was displayed. The contact then turned off the vehicle shifted the vehicle into reverse and the vehicle started working properly. On a separate occasion, the contact depressed the brake pedal and the vehicle failed to respond. The local dealer was contacted; however, the vehicle was not repaired because the VIN was not under recall. The manufacturer was made aware of the failure. The failure mileage was approximately 22,554.

Filed Mar 10, 2025 · Brakes, Driver assistance · NH

Minimum 3 times the vehicle has experienced unintended braking while in reverse. Toyota dealerships have been unable to repair or resolve. 1 incident the vehicle has experienced unintended braking while in drive. Dealership refuses to attempt repair.