2024 Lexus GX Reliability Report

The gauge cluster and head-up display go black, sometimes at startup and sometimes while driving, and stay dark for minutes at highway speed. The center screen may also flicker. Other reports describe a no-start with a "Low Steering Power" message, a humming noise, and clicking even with lights and screens working. Failures show up early, around 4,500 to 8,000 miles. Dealers often can't reproduce the blackouts, so no repair is done. In one case, lotion leaking through the dash shelf above the glove box destroyed control modules and disabled the vehicle.

Sudden, total loss of power while driving is the main concern. The car stalls with no prior warning, dashboard messages call for an immediate dealer visit, and the driver has to get out of heavy traffic. In the case reported, the dealer traced the failure to a broken timing belt guide. That let the engine timing slip and damaged the valves and cylinder head, which had to be replaced. A separate complaint reports a rough idle. Only 2 complaints are on file, but a stall in traffic is a serious crash risk.

The vehicle shakes violently when braking down long, steep grades, enough that the driver doubts it can stop. This started at about 6,000 miles. The dealer called it normal on steep grades and first offered to resurface the rotors before agreeing to replace them. Other complaints describe brakes squealing in reverse in the mornings and sometimes going forward. Those complaints are mostly about a parts shortage. Dealers can order only a few repair kits each week, and owners report waiting 4 to 6 months for parts.