2023 Toyota Highlander Reliability Score & Common Problems

Owners of the 2023 Toyota Highlander report issues with the vehicle's electrical system, particularly involving the instrument panel and liftgate. Multiple complaints describe the instrument panel going blank or showing a white screen, which prevents visibility of critical safety information; this issue is noted at mileages around 29,500. Additionally, some owners experience intermittent liftgate operation, including abnormal sounds and limited movement, with these problems appearing at approximately 28,000 miles. Several reports also mention hesitation during acceleration and brake pedal engagement, with one owner citing a brake actuator issue at 6,000 miles. While no crashes or fires are reported, the described symptoms can affect vehicle control and safety.

Owners of the 2023 Toyota Highlander frequently report issues with the service brakes, particularly in hybrid models. Common symptoms include the vehicle lunging or surging forward when braking, especially noticeable during downhill driving or when transitioning from regenerative to friction braking. Some complaints also describe vibrations or wobbling during braking at highway speeds, potentially linked to warped brake rotors. These issues have been reported at various mileage levels, with some owners experiencing them as early as 25,000 miles. Safety implications are significant, as one complaint details a crash with an injury attributed to brake failure, and several owners mention near-collisions due to unexpected brake behavior.

Owners report frequent issues with the 2023 Toyota Highlander's engine, primarily involving hesitation and surging during acceleration. Typical symptoms include delayed response from a stop, "bucking" during acceleration, and inconsistent power delivery, which some owners describe as "turbo lag." These issues often occur in new vehicles, with some owners noticing problems as early as a few months after purchase or within the first 12,000 miles. Safety implications are noted, with several near-miss incidents reported due to the vehicle's unpredictable acceleration, particularly when merging into traffic or navigating mountain roads. Multiple owners express frustration with dealer responses, often attributing the issues to software design without immediate solutions.

Owners report that the airbags in the 2023 Toyota Highlander frequently fail to deploy during crashes, with five incidents involving collisions where airbags did not activate. These complaints highlight situations where vehicles were totaled or involved in significant impacts, yet airbags remained inactive, resulting in six reported injuries. Affected vehicles range from 4,000 to 50,000 miles at the time of incidents. Some owners also mention issues with the vehicle's black box not recording the incidents properly. Safety implications are evident, as these failures occur during scenarios where airbag deployment is typically expected, such as collisions with other vehicles or stationary objects.

Owners of the 2023 Toyota Highlander frequently report issues with erratic acceleration and hesitation during driving. Common symptoms include the vehicle being slow and jerky or unexpectedly surging forward, with some owners noting these issues are more pronounced when using 87 octane fuel or driving in warm conditions with the air conditioning on. Complaints indicate these problems can occur at low mileages, starting as early as 500 miles, and persist even beyond 13,000 miles. Safety implications are noted, as these acceleration issues may lead to dangerous situations such as unintended acceleration or hesitation in intersections, potentially increasing the risk of accidents. Additionally, some owners mention that reprogramming the electronic control module (ECM) or using higher octane fuel can alleviate symptoms, though these solutions are not universally reported.

Owners of the 2023 Toyota Highlander report issues related to steering, with complaints frequently mentioning difficulty steering and illuminated warning lights for power steering and pre-collision systems. One owner describes a diagnosis of power steering and rack and pinion failure at approximately 49,050 miles, indicating potential component failure at higher mileages. Another complaint highlights an unresolved recall issue affecting steering, with parts unavailable, leading to concerns about the front bumper potentially interfering with tire movement and causing grinding noises. While no crashes or loss of control are reported, the unresolved recall and steering difficulties may pose safety risks. Buyers should consider these issues, especially regarding recall status and potential repair needs.

Owners report issues with the fuel/propulsion system of the 2023 Toyota Highlander, primarily involving the smell of gasoline. Complaints frequently mention a persistent gas odor, with one owner noting the smell is more pronounced on hot days and accompanied by visible gas fumes from the filler neck area. Symptoms include headaches, nausea, and dizziness for passengers, suggesting potential safety and health risks. One owner indicates that the problem is known to affect multiple vehicles, including newer Highlanders and Grand Highlanders, although no specific mileage or timeline is provided. These reports suggest potential safety and environmental concerns, as the described issues involve fuel vapors.