2023 Toyota 4Runner problems

“Purchased size 265/70R17 tires (Michelin Defender LTX M/S2) exhibiting severe highway vibration immediately post-installation. The vibration persisted continuously for two years across every rotation, posing serious handling and steering risks. For two years, local shop staff gaslit the customer, claiming an "out-of-round" tire or casing defect was impossible to avoid warranty obligations. During a visit in front of store management, staff repeated the claim in front of management. The customer then presented real-time technical data from Google on the spot, forcing staff to admit casing defects happen. Despite this, management cleared the driver to leave, assuring the vehicle was safe to operate with an infant inside. To obtain objective proof, an authorized TOYOTA dealership inspected the vehicle. The dealer verified steering, suspension, and alignment were completely sound and documented the root cause in writing: "Found front left tire has casing deformation." When escalated to corporate executives—including Robert Moyer and top management—an internal email chain revealed local shop management and corporate leadership actively placing profit over safety,…”

“Vehicle Component: Solid Rear Axle Assembly / Rear Suspension GeometryDefect Summary: The vehicle exhibits a factory manufacturing defect causing severe rear axle misalignment. At approximately 350 miles from new, an official dealership Hunter alignment report documented out-of-spec rear alignment parameters (-0.16° rear total toe) on a non-adjustable, factory solid rear axle assembly. Safety Risk & Impact: A misaligned solid rear axle compromises vehicle stability, introduces rear thrust angle deviation, and impairs predictable vehicle tracking and emergency evasive handling at highway speeds. Because a solid rear axle has no factory adjustment points, this indicates a bent or improperly manufactured axle housing or mounting structure. Due to this ongoing uncorrected factory alignment defect, the vehicle has required close to 10 alignments and is already on its 4th set of tires due to severe, premature tire wear and scrub. Verification & Status: The defect was documented on official dealership alignment equipment at 350 miles. The vehicle and all supporting alignment/service records are available for inspection upon request. The manufacturer executive offices…”

“Vehicle begins to shake when speed reaches 60 to 70 MPH (issue has been happening since the vehicle left the lot). Shaking can be felt in the steering wheel, gas/brake pedals and front seats. Vehicle has been taken to a Toyota dealership three different times and after three realignments and tire rebalancing, the issue still persists. Several 4Runner owner forums are experiencing the same issue in this make, model and year; and suspect the issue might be stemming from a malfunctioning or broken needle bearing.”

“My brand new 2023 Toyota 4Runner has terrible head lights. I see I am not the first person to post this very same complaint either. These headlights NEED to be recalled and replaced by Toyota. I will do my best to describe this, but when driving in the dark there is large shadow cast on the left side of the throw of the lights. It is far in front of the car, just before the light tapers off into darkness. But it's not just that the headlights are uneven, I have light that surrounds the dark spot. So it's like I'm constantly chasing an animal. The 4Runner has a soft suspension, so every small bump in the road makes the shadow dance and it is incredibly distracting. It's all I look at. When I turn it looks like something is running across the road. This is a dangerous design. I live in Illinois and I drive to and from work in the dark 5 months out of the year. Everybody on the internet says it's for the safety of oncoming drivers. The shadow is nowhere near where somebody would be sitting in an oncoming driver seat. This problem is all over the internet. Why has nothing been done about it? The Toyota dealer told me it's be design, and so did the service manager.…”

“The contact owns a 2023 Toyota 4Runner. The contact stated that the driver's side door failed to lock using the key fob or the buttons on the door. The doors had to be manually locked and unlocked. The vehicle was taken to the dealer, where it was confirmed to be a known issue, and the locks were replaced. Shortly after the vehicle was repaired, the failure reoccurred. The vehicle was taken to the dealer, and the failure was confirmed; however, the warranty coverage only provided a repair for the driver's side door. The failure had occurred on the passenger door and the rear driver’s side door, and the repairs were not covered under recall or warranty. The vehicle was not repaired. The manufacturer was informed of the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The approximate failure mileage was 77,000. The VIN was not provided.”

“New, strange noise started in Dec'25 (41K miles; 2yrs 9 months). No warning lights. Diagnosed as failed brake accumulator (first at an independent shop, later at the dealer). Apparently the accumulator is part of the full master cylinder assembly which must be replaced. Toyota has quoted $3,200 to complete this repair and is telling me it must be out of pocket.”