See attached document for complaint.
Electrical system
Lexus IS Electrical problems by year
8 complaints filed with NHTSA about the Lexus IS's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
Electrical complaints by model year
Latest IS electrical complaints
The vehicle is experiencing a failure of the dual-zone HVAC system where the passenger side consistently blows hot air while the driver side is set to cold. This indicates a failure of the HVAC blend door actuator (servo motor), which is a known issue for this model year. This failure poses a safety risk as it can prevent proper defrosting and defogging of the windshield during inclement weather, obstructing driver visibility. Also should note While driving, the vehicle becomes excessively loud and behaves as if...
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it is stuck in the wrong gear, accompanied by a significant loss of engine power. An onboard diagnostic alert has indicated a malfunction in the electronic control of the engine throttle or automatic transmission. This 'limp mode' behavior creates a hazardous situation during highway driving or merging, as the vehicle cannot maintain speed or respond to throttle inputs, increasing the risk of a rear-end collision.
Driver side headlights and high beam have gone dim, reduced to a yellow haze. This creates a hazard by reducing visibility when driving. This increases risk of accidents due to dimly let roadway. I have had the lens professional cleaned and there is no oxidation which may reduce light output. I have checked the headlight alignment and it is good.
Vehicles manufactured by Lexus/Toyota from 2014 onward have been reported to experience rainwater intrusion into the trunk area, attributed to a faulty tail light nut composed of plastic with a rubber gasket. Lexus/Toyota is fully aware of this issue, which can lead to water damaging electrical components or result in trunk flooding if the problem goes unnoticed." Causing expensive damage to audio system.as it did with mine.
2014 Lexus is 250, 102,301 miles the audio and entertainment system in the dash board. All radio speckers and sound effects feed back tones. This has happened while "stationary, in motion, city street, and highway. The audio radio, sat, cd or bluetooth and navigation on-screen feedback tones disappear. Options to adjust bass, treble or ect is greyed out and lost. The point pad also looses sound feeback.. Checked all fuses and they are good.
The contact owns a 2017 Lexus IS 200t. The contact stated that while the vehicle was parked in the rain, water leaked into the dashboard causing the headlights to fail. The contact took the vehicle to an independent mechanic, and it was determined to be a manufacturing defect. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 96,000.
When driving at high speeds on the highway (75-85mph) after about 20 mins or so, the steering wheel feels like it locks up or gets stuck. The only way to get it back to normal is to jerk the wheel a bit resulting in swerving. This happens almost everytime I travel across the state. The car has passed all inspections at the Lexus Dealer. This past visit to the dealership, the tie rod was found to be corroded, however the technician does not believe that is the issue. We believe it is the steering rack. This car has...
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not been in any major accidents and was having this safety issue prior to a slight fender bender. The issue is a huge safety concern because the steering wheel "stops respondings" and needs to be jerked or swerved to go back to normal.
The contact owns a 2015 Lexus IS250. The contact stated while operating the vehicle, the radio and infotainment center failed to function properly. Additionally, there was a burning odor inside the cabin of the vehicle. Upon inspection, it was discovered that the stereo amplifier located in the trunk was submerged in water. The location of the water intrusion was not determined. The local dealer and manufacturer were not yet notified of the failure. The failure mileage was 88,000.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data