Lexus GX Common Problems

ELECTRICAL SYSTEM

Owners of the 2024 Lexus GX report issues with the electrical system, particularly involving the instrument cluster and electronic control units. Complaints frequently mention instrument cluster screens turning black while driving, with one report indicating this occurs intermittently and is unresolved by dealerships. Another owner describes a "Low Steering Power" message and subsequent electrical failures, including smoke from the fuse box, suggesting a potential fire risk. Additionally, there is a report of melted dashboard items damaging the ECU and power distribution assembly, leading to complete vehicle inoperability. These issues are reported at mileages ranging from 4,500 to 8,000 miles. Safety implications include potential fire hazards and loss of vehicle operability, which are critical considerations for prospective buyers.

SERVICE BRAKES

Owners of the 2022 Lexus GX frequently report a loss of braking capability while stopped, with symptoms including the brake pedal gradually losing pressure and traveling to the floor despite being fully depressed. This issue often results in the vehicle moving forward at idle, requiring additional force on the brake pedal or shifting to neutral or park to prevent unintended movement. Another distinct issue involves the parking brake foot pedal, where owners describe a sharp edge that can cause cuts to footwear or skin, posing a potential safety risk if reflexive actions occur while driving. These complaints do not specify a consistent mileage range but highlight safety implications, such as the risk of rolling into intersections or injury from the sharp edge.

SUSPENSION

Owners of the 2025 Lexus GX frequently report issues related to vibrations at various speeds, with symptoms including noticeable shaking felt in the steering wheel and seats. One complaint details an unresolved vibration problem despite attempts at wheel alignment and balancing, with a suggestion that the wheels may be slightly out of round. Another owner notes harsh knocking and abrupt transmission changes at slow speeds, although this is not directly linked to the suspension. No specific mileage ranges are provided, and there are no reports of crashes, fires, or loss of control associated with these issues. This information could be useful for potential buyers to consider when assessing the vehicle's performance and comfort.

ENGINE

Owners report two main issues with the 2024 Lexus GX engine. One complaint describes a rough idle, while another details a severe engine failure where the timing belt guide breaks, leading to a loss of engine timing and subsequent damage to the valves and head. This failure results in the engine becoming completely disabled, requiring emergency maneuvering to safely exit heavy traffic, and necessitates extensive repairs taking nearly a month to complete. The latter issue poses significant safety risks due to the sudden loss of motive power, though specific mileage information is not provided in the complaints. These reports highlight potential reliability concerns for prospective buyers, particularly regarding unexpected engine shutdowns.

SERVICE BRAKES

Owners of the 2024 Lexus GX frequently report issues with the service brakes, with two primary patterns emerging. One complaint describes violent shaking during braking on steep grades, even after rotor and pad replacement, occurring around 6,000 miles. Another issue involves brake squealing, particularly when backing up in the mornings, with the manufacturer aware but slow to supply repair kits, affecting approximately two-thirds of vehicles sold. Safety implications include concerns about brake reliability on steep descents, though no crashes or loss of control are reported. These patterns suggest potential maintenance challenges for used car buyers, particularly those driving in mountainous areas.

UNKNOWN OR OTHER

Owners of the 2024 Lexus GX report two primary issues under the unknown or other category. First, multiple owners describe a "transmission jerk" when pressing the brake, particularly noticeable when slowing to a stop. This issue reportedly begins after a few months of ownership and persists despite dealership attempts to reset the system, affecting driving comfort and potentially leading to concerns about vehicle control. Second, there are complaints about the OEM pre-installed slim profile roof rack causing distracting noises at speeds between 45mph and 55mph, which could lead to driver distraction. Both issues are noted by owners to have potential safety implications, with the transmission jerk causing anxiety about possible collisions and the roof rack noise leading to driver distraction.

SERVICE BRAKES

Owners of the 2023 Lexus GX report issues with the service brakes, particularly when the vehicle is stationary. One complaint describes a situation where the vehicle begins to move despite the brake pedal being engaged, requiring additional pressure to prevent movement. This issue is associated with an increase in engine RPMs without driver input and is noted at approximately 3,100 miles. Another owner reports that the parking brake fails to hold the vehicle on an incline unless the transmission is set to "Park," causing the vehicle to roll downhill. These issues may have safety implications, including potential loss of vehicle control when stationary.

ELECTRICAL SYSTEM

Owners of the 2022 Lexus GX report issues related to the electrical system, with two main failure patterns emerging. One owner describes a severe incident where the steering wheel jerked unexpectedly, the brakes failed to engage properly, and the windshield wipers activated without input, resulting in a crash. Another owner reports that the hill assist feature malfunctions, causing the vehicle to drift backward and engage the traction control system, which can delay forward movement and potentially lead to accidents. These issues are reported at low mileage, around 1,500 miles, and pose significant safety risks, including the potential for crashes and loss of vehicle control.

Severity signals: 1 crash, 0 fire, 0 injury reports