LEXUS CT · model year

2015 LEXUS CT

24 NHTSA complaints, 4 crash reports for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2015LEXUSCT carries 24 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 4 crashes, 0 fires, 5 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2015 CT is service brakes with 8 filings, followed by electrical system (4) and unknown or other (4). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.

NHTSA currently has 3 investigation files overlapping the 2015 CT. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

24
Complaints
4
Crashes
0
Fires
5
Injuries
0
Deaths

Total Complaints

24 filings

Crashes Reported

4 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
SERVICE BRAKES8
ELECTRICAL SYSTEM4
UNKNOWN OR OTHER4
ELECTRONIC STABILITY CONTROL (ESC)2
AIR BAGS1
STEERING1
VEHICLE SPEED CONTROL1
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING1
POWER TRAIN1
FUEL/PROPULSION SYSTEM1

Recent Complaints

20250416UNKNOWN OR OTHER

For several years now, I have been experiencing incidents where someone and/or a group is hacking into my radio and/or satellite radio systems and trying to lure me into conversation, make comments, or actually sing to whatever it is I'm listening to. Most incidents have been reported to the NHTSA, which they have been filing. Please know that sometimes the "noise is constant", as well as it appears that someone is actually connecting to my vehicle because I can feel it (also reported). I also hear people speaking from the outside of my vehicle (usually the front end on both sides). It has become a distraction at times, which poses risk to not only myself but other drivers as you can imagine. What can be done to mitigate someone attaching to my vehicle? I am also under the impression that they are recording me or using me as podcast material, which is against the law in various states to varying degrees and without my authority. Please advise, as it has been ongoing for years.

20250407UNKNOWN OR OTHER

Please add to previous filings / communications - thank you. PROBLEM PARTS: Satellite Radio and/or AM-FM Radio; Bluetooth; Speaker System; Unknown Device The parts have not malfunctioned however, there appears to be a person and/or group attaching to my vehicle via several conduits related to any radio input and/or speakers. This has been ongoing for years where I have submitted previous reporting based on hearing voices not directly affiliated with the broadcaster(s); being the victim of Havana Syndrome; Radio-Frequency Assaault; Satellite Terrorism, and other unwanted Amateur Radio broadcasters that may or may not be acting with malintent. I am still hearing information in and outside of my vehicle - some of which are directed against my person. Furthermore, someone is now "connecting to my vehicle" (I can feel hits to both the front and back of my vehicle) while I am sitting in parking lots, rest stops, gas stations, etc. This "connecting to my vehicle" via hard hits became

20240503SERVICE BRAKES

received CUSTOMER SUPPORT PROGRAM 24LE01 NOTIFICATION for issues related to Brake Booster and Brake Booster Pump Assemblies. Indicator lights, such as Master Warning Light (Yellow) and SLOP Indicator (Yellow) have appeared while reversing out of a parking spot when no water puddles are present and moving foward (clear day/road) where the vehicle doesn't catch the gear to move initially. Once braking, the system seems to reset itself and allows for a "normal drive". The experience is intermittent, and not often- the dashboard warning lights come on infrequently and is not consistent. Lexus Dealer/Service Shop advised a charge of $145 to look for diagnostic codes C1391, C1252, C1256, C1253. If they find these codes, then they will check the extended warranty to determine if they will charge you or not under their customer support program which really doesn't tell the car owner one way or another. The service adviser said only a Lexus authorized dealer can check for the diagnostic c

20240503ELECTRICAL SYSTEM

received CUSTOMER SUPPORT PROGRAM 24LE01 NOTIFICATION for issues related to Brake Booster and Brake Booster Pump Assemblies. Indicator lights, such as Master Warning Light (Yellow) and SLOP Indicator (Yellow) have appeared while reversing out of a parking spot when no water puddles are present and moving foward (clear day/road) where the vehicle doesn't catch the gear to move initially. Once braking, the system seems to reset itself and allows for a "normal drive". The experience is intermittent, and not often- the dashboard warning lights come on infrequently and is not consistent. Lexus Dealer/Service Shop advised a charge of $145 to look for diagnostic codes C1391, C1252, C1256, C1253. If they find these codes, then they will check the extended warranty to determine if they will charge you or not under their customer support program which really doesn't tell the car owner one way or another. The service adviser said only a Lexus authorized dealer can check for the diagnostic c

20240411ELECTRICAL SYSTEM

The following two events happened during the first week of April 2024 EVENT #1: While driving at 65 MPH on a freeway, the car decelerated and failed to travel above 40 MPH. Simultaneously, three warming lights appeared on the dash: a yellow triangle, the check engine light and a "CHECK HYBRID SYSTEM" warning. EVENT # 2: Same symptoms and dash displays as event number one while traveling at 40 miles up a hill.

20240411POWER TRAIN

The following two events happened during the first week of April 2024 EVENT #1: While driving at 65 MPH on a freeway, the car decelerated and failed to travel above 40 MPH. Simultaneously, three warming lights appeared on the dash: a yellow triangle, the check engine light and a "CHECK HYBRID SYSTEM" warning. EVENT # 2: Same symptoms and dash displays as event number one while traveling at 40 miles up a hill.

20240411FUEL/PROPULSION SYSTEM

The following two events happened during the first week of April 2024 EVENT #1: While driving at 65 MPH on a freeway, the car decelerated and failed to travel above 40 MPH. Simultaneously, three warming lights appeared on the dash: a yellow triangle, the check engine light and a "CHECK HYBRID SYSTEM" warning. EVENT # 2: Same symptoms and dash displays as event number one while traveling at 40 miles up a hill.

20240212SERVICE BRAKES

I noticed that the brakes felt a bit weird when engaged. I felt a touch on the brakes and heard as if the abs pump was pumping. Thinking it was something of a fluke, I didnt pay any further attention to it. After not driving the car for couple of days, when I turned on the car a day ago the warning (!, brake, ABS, and traction control lights) are all lit up on my 2015 Lexus CT200h. After doing some research, I have found an old recall for Lexus CT200 H for (2011-2014) see (L-SB-0009-210) from May 11,2021 letter online. A code scan revealed a C1391 error, indicating an abnormal leak in the accumulator. This ABS module is the same as the recalled Toyota ABS module. Please this could be dangerous to me and my family.

20240207SERVICE BRAKES

Urgent Safety Complaint Regarding Brake System Failure and Manufacturer's Extended Warranty Acknowledgment To Whom It May Concern, I am writing to formally file a complaint concerning a critical safety issue with my vehicle, which has significantly impacted its braking system. This issue not only presents a severe risk to my safety and that of other road users but has also been acknowledged by the manufacturer through the issuance of an extended warranty for this specific malfunction. Approximately one month prior to the complete failure, my vehicle began emitting an unusual hissing noise from the brake pedal area, leading to a near-total loss of braking functionality. The incident was characterized by the activation of the Anti-lock Braking System (ABS), traction control, and brake warning lights, accompanied by a repetitive buzzing noise every 5-10 seconds related to the brake system's charging mechanism. The brake pedal became exceedingly soft, rendering the vehicle's brakes near

20240123SERVICE BRAKES

Brake master cylinder/accumulator failure occurred and multiple lights (ABS/TCS/(!)/BRAKE) appeared on the instrument cluster. Brake pedal response drastically decreased resulting in potentially extremely dangerous situation occurring while the vehicle is in motion

20240123ELECTRICAL SYSTEM

Brake master cylinder/accumulator failure occurred and multiple lights (ABS/TCS/(!)/BRAKE) appeared on the instrument cluster. Brake pedal response drastically decreased resulting in potentially extremely dangerous situation occurring while the vehicle is in motion

20240119SERVICE BRAKES

I noticed that the !, brake, ABS, and traction control lights are all illuminated on my 2015 Lexus CT200h. A code scan revealed a C1391 error, indicating an abnormal leak in the accumulator. This ABS module is the same as the recalled Toyota ABS module.

20231214SERVICE BRAKES

A common problem with these Lexus ct200h, as well as Toyota Prius V models, are that the brake accumulators begin to leak internally, as they share the same part numbers. Therefore, the actuator pumpwill buzz every few seconds trying to keep pressure in the braking system to a safe operating level of gas pressure,to no avail due tothisleak inthe accumulator. After it quits buzzing, say shutting the car off, you can hear the air leak “hiss”pressure away. as you may know tons and tons of articles on this issue online as this is a major safety concern. Many have had Toyota replace the part free of charge as well due to the extended 10 year, or 150k miles, in whichever comes first. warranty. This may be perhaps because there are several more prius on the road than this rare Lexus 200h Just look up “c1391 danger” and see what comes up. I’m not trying to get [XXX], but in my opinion, as well as many, it is pathetic that an issue in which endangers the lives of others due this brake

20231214VEHICLE SPEED CONTROL

A common problem with these Lexus ct200h, as well as Toyota Prius V models, are that the brake accumulators begin to leak internally, as they share the same part numbers. Therefore, the actuator pumpwill buzz every few seconds trying to keep pressure in the braking system to a safe operating level of gas pressure,to no avail due tothisleak inthe accumulator. After it quits buzzing, say shutting the car off, you can hear the air leak “hiss”pressure away. as you may know tons and tons of articles on this issue online as this is a major safety concern. Many have had Toyota replace the part free of charge as well due to the extended 10 year, or 150k miles, in whichever comes first. warranty. This may be perhaps because there are several more prius on the road than this rare Lexus 200h Just look up “c1391 danger” and see what comes up. I’m not trying to get [XXX], but in my opinion, as well as many, it is pathetic that an issue in which endangers the lives of others due this brake

20231214FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

A common problem with these Lexus ct200h, as well as Toyota Prius V models, are that the brake accumulators begin to leak internally, as they share the same part numbers. Therefore, the actuator pumpwill buzz every few seconds trying to keep pressure in the braking system to a safe operating level of gas pressure,to no avail due tothisleak inthe accumulator. After it quits buzzing, say shutting the car off, you can hear the air leak “hiss”pressure away. as you may know tons and tons of articles on this issue online as this is a major safety concern. Many have had Toyota replace the part free of charge as well due to the extended 10 year, or 150k miles, in whichever comes first. warranty. This may be perhaps because there are several more prius on the road than this rare Lexus 200h Just look up “c1391 danger” and see what comes up. I’m not trying to get [XXX], but in my opinion, as well as many, it is pathetic that an issue in which endangers the lives of others due this brake

20210525UNKNOWN OR OTHER

I'm not sure

20201216CrashELECTRICAL SYSTEM

MY VEHICLE WAS IN AN ACCIDENT ON THE FREEWAY WHEN MY STEERING WHEEL STARTED TO WIGGLE- WITHIN 3 SECONDS MY STEERING WHEEL VIOLENTLY STEERING LEFT TO RIGHT UNCONTROLLABLY THAT CAUSED THE VEHICLE TO SPIN OUT OF CONTROL ON THE FREEWAY CAUSING A TOTAL LOSS COLLISION. MY VEHICLE HAS BEEN SERVICED PRIOR TO THE ACCIDENT AT LEXUS OF BEVERLY HILLS AT JIM FAULK- DID A FULL SERVICE INSPECTION, TIRE ROTATION TO MAKE SURE SAFELY OF THE VEHICLE. THE VEHICLE IS ALSO STILL UNDER WARRANTY. NEED INVESTIGATION FROM LEXUS WHAT CAUSED THE VEHICLE MALFUNCTION JTHKD5BH3F224391 C1214 TOYOTA MEANING THE BRAKE BOOSTER WITH MASTER CYLINDER (SKID CONTROL ECU) MONITORS THE HYDRAULIC CONTROL SYSTEM. THE BRAKE BOOSTER WITH MASTER CYLINDER (SKID CONTROL ECU) SETS THE OBDII CODE WHEN THE HYDRAULIC CONTROL SYSTEM IS NOT TO FACTORY SPECIFICATIONS. AN ANALYST HAS PULLED THE CDR OF THE VEHICLE STATING THE VEHICLE MALFUNCTION OF THE LEXUS THAT CAUSED THE ACCIDENT- NEED INVESTIGATION WHY THE VEHICLE DID N

Mileage: 49,000

20201216CrashSTEERING

MY VEHICLE WAS IN AN ACCIDENT ON THE FREEWAY WHEN MY STEERING WHEEL STARTED TO WIGGLE- WITHIN 3 SECONDS MY STEERING WHEEL VIOLENTLY STEERING LEFT TO RIGHT UNCONTROLLABLY THAT CAUSED THE VEHICLE TO SPIN OUT OF CONTROL ON THE FREEWAY CAUSING A TOTAL LOSS COLLISION. MY VEHICLE HAS BEEN SERVICED PRIOR TO THE ACCIDENT AT LEXUS OF BEVERLY HILLS AT JIM FAULK- DID A FULL SERVICE INSPECTION, TIRE ROTATION TO MAKE SURE SAFELY OF THE VEHICLE. THE VEHICLE IS ALSO STILL UNDER WARRANTY. NEED INVESTIGATION FROM LEXUS WHAT CAUSED THE VEHICLE MALFUNCTION JTHKD5BH3F224391 C1214 TOYOTA MEANING THE BRAKE BOOSTER WITH MASTER CYLINDER (SKID CONTROL ECU) MONITORS THE HYDRAULIC CONTROL SYSTEM. THE BRAKE BOOSTER WITH MASTER CYLINDER (SKID CONTROL ECU) SETS THE OBDII CODE WHEN THE HYDRAULIC CONTROL SYSTEM IS NOT TO FACTORY SPECIFICATIONS. AN ANALYST HAS PULLED THE CDR OF THE VEHICLE STATING THE VEHICLE MALFUNCTION OF THE LEXUS THAT CAUSED THE ACCIDENT- NEED INVESTIGATION WHY THE VEHICLE DID N

Mileage: 49,000

20201216CrashUNKNOWN OR OTHER

MY VEHICLE WAS IN AN ACCIDENT ON THE FREEWAY WHEN MY STEERING WHEEL STARTED TO WIGGLE- WITHIN 3 SECONDS MY STEERING WHEEL VIOLENTLY STEERING LEFT TO RIGHT UNCONTROLLABLY THAT CAUSED THE VEHICLE TO SPIN OUT OF CONTROL ON THE FREEWAY CAUSING A TOTAL LOSS COLLISION. MY VEHICLE HAS BEEN SERVICED PRIOR TO THE ACCIDENT AT LEXUS OF BEVERLY HILLS AT JIM FAULK- DID A FULL SERVICE INSPECTION, TIRE ROTATION TO MAKE SURE SAFELY OF THE VEHICLE. THE VEHICLE IS ALSO STILL UNDER WARRANTY. NEED INVESTIGATION FROM LEXUS WHAT CAUSED THE VEHICLE MALFUNCTION JTHKD5BH3F224391 C1214 TOYOTA MEANING THE BRAKE BOOSTER WITH MASTER CYLINDER (SKID CONTROL ECU) MONITORS THE HYDRAULIC CONTROL SYSTEM. THE BRAKE BOOSTER WITH MASTER CYLINDER (SKID CONTROL ECU) SETS THE OBDII CODE WHEN THE HYDRAULIC CONTROL SYSTEM IS NOT TO FACTORY SPECIFICATIONS. AN ANALYST HAS PULLED THE CDR OF THE VEHICLE STATING THE VEHICLE MALFUNCTION OF THE LEXUS THAT CAUSED THE ACCIDENT- NEED INVESTIGATION WHY THE VEHICLE DID N

Mileage: 49,000

20200712SERVICE BRAKES

THERE IS A NOISE THAT MANY OF THESE VEHICLES SUFFER AS A SYMPTOM FROM A PROBLEM IN THE BRAKE SYSTEM. IT PRODUCES A HONKING OR GRUNTING TYPE SOUND WHEN FIRM PRESSURE IS APPLIED TO THE BRAKE PEDAL.

Compare 2015LEXUSCT to Similar Vehicles

NHTSA Investigations

Frequently Asked Questions

How many complaints does the 2015 LEXUS CT have?
The 2015 LEXUS CT has 24 NHTSA complaints, 4 crashes, 0 fires, 5 injuries, and 0 deaths reported.
What are the most common problems with the 2015 LEXUS CT?
The most-complained component for the 2015 LEXUS CT is SERVICE BRAKES with 8 complaints. Other frequently reported areas include ELECTRICAL SYSTEM and UNKNOWN OR OTHER.
Is the 2015 LEXUS CT safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.