Electrical System Problems of Lexus IS

Lexus IS owners have reported 28 problems related to electrical system (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Lexus IS based on all problems reported for the IS.

1 Electrical System problem of the 2014 Lexus IS

Failure Date: 08/16/2025

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.

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2 Electrical System problem of the 2010 Lexus IS

Failure Date: 06/18/2025

My car experienced sudden unintended acceleration. I was at a stop light preparing to turn right when my car accelerated of its own accord crashing into the vehicle in front of me. My foot was firmly on the brake, but I had lost control over the vehicle. Whatever electrical defect I experienced, it was sufficient to rev the engine by itself and override the braking system enough that the vehicle advanced forward in an out-of-control manner. It was unintended, unexpected and beyond my ability to control. Failing to recognize the braking system, my vehicle collided into the vehicle a second time. Because my foot was on the brake and my vehicle still advanced forward, I initially thought I had been hit from behind. However, the erratic rpm behavior and the vehicle's continued acceleration while braking confirmed I was no longer in control of the vehicle. Acting promptly, I immediately took the gear shifter out of drive and put into neutral. It was then and only then that I regained control of the vehicle: it stopped accelerating, stopped revving of its own accord and began responding to the braking system. Please note: my foot was not on the gas pedal, for as soon as I took it out of drive, the rpm returned to normal (I. E. The erratic behavior indicated by the tachometer's rpm, stopped). Had my foot been on the gas pedal instead of the brake pedal, the revving would have continued to behave as before; but it did not. (I do not have an all-weather floor mat. It Is neither here nor there, because in the event that I did have one, you would expect the rpm behavior to continue when put into neutral; but again, all behavior returned to normal when the vehicle was put in neutral. ) though I am sympathetic to those that panic in a moment of distress, I was of a present enough mind to know what was happening. An electrical engineer with intimate knowledge of the computer system for this vehicle would be the best to assess what went wrong from a technical perspective.

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3 Electrical System problem of the 2015 Lexus IS

Failure Date: 04/30/2025

Lexus had a recall for a faulty servo motor back in 2021. The recall work was performed; however, the same Issue Is happening again. The airflow on the “head only” setting comes out extremely low and blows air on the feet. This Is the second malfunction for this electrical component within a four year period and shows faulty components being placed in vehicles. This can become a very dangerous situation if air or heat Is not flowing properly from the vents. It can create situations where driver Is not comfortable due to any health conditions or other reasons, and can create a potential accident hazard.

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4 Electrical System problem of the 2014 Lexus IS

Failure Date: 11/11/2024

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.

5 Electrical System problem of the 2015 Lexus IS

Failure Date: 06/01/2023

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.

6 Electrical System problem of the 2015 Lexus IS

Failure Date: 09/25/2022

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 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.

7 Electrical System problem of the 2006 Lexus IS

Failure Date: 06/01/2022

While driving there was no warning lamps messages or other symptoms to any problems. I went to slow down so I could turn around because I missed my stop. The brakes started feeling less pressure I looked up and there was black smoke coming from under the hood then I saw flames. Then the car blew up.

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8 Electrical System problem of the 2006 Lexus IS

Failure Date: 01/15/2021

Power steering keeps going out and steering wheel making grinding noise. Almost crashed when lost steering on freeway. Car also makes noise while starting cold.

9 Electrical System problem of the 2006 Lexus IS

Failure Date: 12/03/2020

The concern I have for my Lexus Is 250 Is that 3 major safety recall repairs have been completed by the dealer. It feels unsafe to drive to date as it has electrical Issues that have caused it to lock up while driving. A problem with the stability control, steering and acceleration most notable in the rain. Today I learned of the takata inflator recalls. I believe this model should be considered in whole for a safety recall.

10 Electrical System problem of the 2006 Lexus IS

Failure Date: 06/01/2020

Vehicle just turned over 100,000 miles. 6-2020 upon a morning start, the vehicle had trouble starting up almost as if it had fuel starvation. I cranked the vehicle up a few more times it was ok it turned on. Upon driving the vehicle had extremely unreliable acceleration , very had sputtering from and to stop lights this was from my commute to work. The vehicle had become unpredictable, some days it would act like that some days it wouldn't. This started to bother me as I rarely worry about situations unless they're dangerous. Late 6-2020 on my way home from work at about 5:00pm the vehichle started sputtering about 1 mile away from my home. As I crossed the intersection of taylor and railroad street. The vehicle died on me at the intersection. I had thought this was just the car with the acceleration problem. So I proceeded to turned it back on. After 10 minutes of cranking the vehicle I had drained the battery completely. Car Is stranded, traffic was a huge build up behind me, vehicle ways well over 3000lbs so I attempted to quick charge the battery, after 10 minutes I had already bystanders help me push the vehicle to the side, due to the massive build up of traffic. 7-2020 after 2 seperate diagnostics I had replaced the fuel injector pump and a cold start valve at the engine. Car was running ok until mid 7-2020 when it began having the same exact Issues again. As this was my only vehicle at the moment I had no other choice but to use it one week later after going to my mothers house from work. The vehicle decided to shut off on me completely this time on the road at 35 mph zone. Car seemed to starve of fuel and I had to quickly react since the car was in motion and luckily pullover. Fortunately it was a light day of traffic at the road of cook st. Thats when I had enough, I am complaining because this vehicle Is extremely unsafe and its an Issue I can't solve!.

11 Electrical System problem of the 2009 Lexus IS

Failure Date: 02/03/2020

The enfotainment display system Is not working and the screen Is completely black and unresponsive. This system controls not just the maps and radio which are obviously not critical, but the air conditioner, the heat and the defroster. Subsequently, during a recent rain storm, I was unable to get my windows clear as their Is no other way to use the defroster except through this touchscreen interface that has topped working. I recently went on the Lexus owners club forum and found countless people complaining of the same Issue. Please see that attached picture that demonstrates what I'm referring to. Thank-you.

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12 Electrical System problem of the 2009 Lexus IS

Failure Date: 10/28/2019

It has a few problems it accelerates at times it has airbag recall and unstable to drive at times brakes lock up or touchy when pushed. Just purchased recently from dealer also was stolen twice before.

13 Electrical System problem of the 2007 Lexus IS

Failure Date: 09/23/2019

The power steering goes out leaving driving a serious hazard. I have read this Is not uncommon in this model. Also, I was informed that it could lock up completely. This Is a serious safety Issue yet there Is not a recall. The car Is in motion when this happens on both city and highway.

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14 Electrical System problem of the 2006 Lexus IS

Failure Date: 06/03/2019

They a/c controller Is not working, transmission Issue, battery Is new but I always jump the battery and a warning red triangle on the dashboard.

15 Electrical System problem of the 2012 Lexus IS

Failure Date: 03/07/2019

The top convertible motor got broken about two years after I bought it so I went back to the dealership and luckily it was under warranty so they replace it but now the one they put on that time now it's broken again and they want to charge me to get fixed.

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16 Electrical System problem of the 2006 Lexus IS

Failure Date: 07/19/2018

I was driving my car when all of a sudden the sensor advised me my coolant was low as I looked over to my left shoulder I notice smoke coming out before it caught fire. Looks like the main source of the fire was an electrical Issue that generated the wheel cover and bumper to start ignoring faster.

17 Electrical System problem of the 2008 Lexus IS

Failure Date: 04/04/2018

Dashboard and door panels are sticky, engine seems like it will die out when I come to a stop . Sunroof doesn't open because controls don't work .

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18 Electrical System problem of the 2010 Lexus IS

Failure Date: 03/01/2018

Cpu under seat controlling car airbags has failed. Lexus will not fix the Issue. Airbags may not deploy or inflate. Lexus states its not a saftey Issue requiring their attention. Lexus stated they know aboutthe Issue and it Is happening in other vehicles. Someone Is going to get seriously injured because of this.

19 Electrical System problem of the 2008 Lexus IS

Failure Date: 07/08/2016

The srs airbag light went off, needs a new sensor which Is around $1700. The airbags won't work unless the sensor Is replaced which Is a huge safety Issue.

20 Electrical System problem of the 2007 Lexus IS

Failure Date: 12/08/2015

My 2007 Lexus Is250 only has 44,000 miles. The navigation console stopped responding, and this was verified as a defect by a Toyota dealership. The result Is that in addition to gps and radio functions not working, the critical and life dependent features of air conditioning and heating also can't be controlled. These features are vital when living in climates that have below freezing weather in winter, and extreme heat in summer. The cost of the repair Is $2900, and Lexus was unwilling to pay for this repair. Clearly this Is a material defect, and this Is occurring to thousands of other Lexus/Toyota owners as noted by online comments.

21 Electrical System problem of the 2008 Lexus IS

Failure Date: 09/29/2015

Nav led touch screen not working/ stopped working.

22 Electrical System problem of the 2008 Lexus IS

Failure Date: 03/01/2015

It happened on two occasions. I was driving and decided to roll down my passenger window. I normally keep it closed. After a while, decided to close it and rolled up but it overshoot the window frame, that the glass almost fell off. I had to stopped and manually push it back in. I successfully rolled it up and kept it there for a week until my son rolled it down last March 1st,2015. It no longer will roll up. I took my car to palm beach Lexus on that same day. Apparently the plastic clip broke off and the entire window has to be replaced, for 600 usd. I have seen a lot of complaints online about this (mostly es350), based on the number of complains this should be considered a defect and costumers shouldn't be paying for the replacement.

23 Electrical System problem of the 2006 Lexus IS

Failure Date: 08/14/2014

My navigation system screen stopped working while 1000 miles away from home. The biggest problem with the screen going out was the fact that all of the heating and air conditioning controls are ran through that same unit. Without being able to adjust my temperature in the vehicle I am not able to defrost the windshield in times when it may fog up.

24 Electrical System problem of the 2007 Lexus IS

Failure Date: 07/01/2014

The headlights will stop working intermittently while driving. At times only the driver side headlight will not work, but at other times both will not work. Many times rotating the headlight control on the steering wheel left stem to the off position and then turning the control back to the on position will cause the headlights to illuminate. Other times I must pull to the side of the road, turn off the vehicle, and then turn on the vehicle for the headlights to work. This Is a very dangerous situation as it occurs at night.

25 Electrical System problem of the 2007 Lexus IS

Failure Date: 10/18/2013

As I just exited the highway and pulled into the parking lot of my work, the steering wheel suddenly froze. I was about to park in an open spot, so the speed of the car was very low. As I was reversing into the spot, the steering wheel jammed and would not turn. I tried shutting down and restarting many times but the wheel was stuck, and required enormous amount of power to turn ever so slightly. The car was towed to the Lexus dealer. They were also unable to turn, and upon their review, they said that there was a leak in timing cover, which accumulated over time and went into the harness of the ecu and burned the ecu, which in-turn jammed your steering. There was no physical leaks on the bottom, and the dealer also confirmed that but said it was an internal leak, you would not see it on the floor. The car Is still at the shop and only after replacing the ecu they will check for steering assembly. The explanation provided by them Is not very adequate and if it Is true then there seems to be a serious flaw in design that any unseen leak from timing cover could cause your steering to freeze unexpectedly, while your vehicle Is in motion.

26 Electrical System problem of the 2008 Lexus IS

Failure Date: 10/16/2012

Electrical Issues started at approximately 30,000 miles. Random times of power windows not rolling down or back up. Random times of radio controls not working. After recall of airbags was completed, the navigation system started having random Issues with the touchscreen. Sometimes it would work and sometimes it didn't. Eventually the touchscreen on the navigation quit working at all. When the door panels were replaced, the windows started working more consistently. The air conditioner stopped working one day. The next day after driving it back into the driveway, over the driveway bump, it started working. The entire electrical system seems like there are wires that make a connection, then maybe come loose just barely enough to no longer make a connection. And just a mechanic's hand brushing against something during a normal maintenance check up fixes it temporarily. Or hitting a bump in the road. Every Issue Is electrical related. There are many other Is250 owners with the same Issues all over public forums online. Many too that their navigation no longer worked after few miles on the car. Could these electrical Issues cause a fire? how do we know it can't? it's always a worry when I drive my car.

27 Electrical System problem of the 2007 Lexus IS

Failure Date: 09/05/2012

The speedometer indicating needle went black along with the tachometer needle not allowing me at night to see my existing speed. There Is no contrast whatsoever. Lexus of silver spring told me this was a $1400. 00 fix. I believe this to be a safety Issue due to the fact that there are many more concerns on this subject from my on line investigation of many people with the same car. I believe this to be a true safety concern. I am willing to bring my car to you as proof of my concern. I need resolution and consideration from the dealer on this matter. Your response Is seriously awaited.

28 Electrical System problem of the 2007 Lexus IS

Failure Date: 08/01/2012

Melting dashboard - can simply stick a fingernail in it and it leaves an indentation. I noticed that others have complained of this problem also. It's also very sticky anywhere along the leather on the doors and dashboard. Also, my car Is only 7 years old and a year ago the touch screen went out. I cannot use the gps at all. Apparently the cost Is about $1,000 to fix this. Seems rediculous that this would happen after only 7 years. This should be guaranteed for life!.


Other Common Electrical System related problems of Lexus IS


IS Service Bulletins
IS Safety Recalls
IS Defect Investigations