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2015 Lexus CT problems

The most common problem on the 2015 Lexus CT is brakes. It has fewer complaints than a typical CT model year.

Fewer complaintsAmong the best years of this model
Year score
82/100
Owner complaints
16
Recalls
0
Service bulletins
18
Worst area
Brakes
Fuel economy
42mpg

The worst 2015 Lexus CT problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Brakes
    9
  • Electrical
    4
  • Driver assistance
    3
  • Airbags
    2
  • Acceleration
    1
  • Fuel system
    1
  • Steering
    1
  • Transmission
    1

Specific symptoms reported on the 2015 Lexus CT

ABS 5

Trouble codes owners of the 2015 Lexus CT mention

C1391 5

Recalls

No recalls on record for this model year.

Defect investigations

Pedestrian alert soundsOpened January 27, 2023, closed August 7, 2023

the federal safety agency received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, the federal safety agency opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified the federal safety agency he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by the federal safety agency regarding the subject matter of the petition.

DP22005

Technical service bulletins for the 2015 Lexus CT 18

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 18 bulletins for the 2015 Lexus CT

2015 Lexus CT fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
1.8L 4‑cyl HybridFWD434042

What 2015 Lexus CT owners say

Most recent owner complaints, unedited.

Filed Aug 14, 2026 · Airbags · CA · 1 injury

Airbags blew on me while driving.

Filed Apr 1, 2026 · Brakes · OK

While driving normally one day, all the brake lights on the dash came on and my stopping power was diminished. I pulled the trouble codes and the only code was C1391 which indicates an "Abnormal Leakage in the Accumulator". This is a major safety concern and a costly repair if left to the customer.

Filed Apr 16, 2025 · PA

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 federal safety agency, 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. Thank you for your assistance. DATES OF INCIDENTS: Ongoing since late 2018, if not earlier.

Filed Apr 7, 2025 · PA

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 obvious since last week ([XXX]) in Warrendale, PA while I was reviewing my travel plans. After the "hits" I began hearing voices in my car, as well as from externally. The voices and/or broadcasts I am hearing are mainly derogatory, pornographic, and/or threatening in nature and, at times, have caused me to get confused that may or may not become problematical when driving. There are also broadcasts that sound as if they are trying to recruit or lure me into sex trafficking, as they state that I have no money, etc. Lastly, I am being told that I am unloved, have no family, and that my family is somewhere else - that I can have a baby, etc., - that "You are one of us." [sic] Since leaving my father's home ([XXX]), there have also been several incidents of Satellite Terrorism and Havana Syndrome associated with various locations: Erie, PA to Texas to North Carolina, etc. - at every hotel, rest stop, while sitting in my car, etc. I believe someone is trying to abduct me. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORM

Filed May 3, 2024 · Brakes, Electrical · WI

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 codes and can't be obtained from a traditional code reader at retail outlets such as Autozone, or OReilly, etc. The issues with the Brake Booster and Brake Booster Pump Assemblies sounds like a critical issue with deadly affects if not looked into. The method of the dealer seems shady to get this looked at and for a price to be passed on to the car owner.

Filed Apr 11, 2024 · Electrical, Fuel system · CA

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.

Filed Feb 12, 2024 · Brakes · TX

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.

Filed Feb 7, 2024 · Brakes · FL

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 nearly non-existent. Despite the vehicle being only a year and a half old and previously showing no major issues, this braking system failure occurred suddenly and without warning. However, in light of the manufacturer's recent communication regarding the extended warranty for this specific problem, it is clear that this is a known issue that poses a significant safety risk. Given the manufacturer's acknowledgment of the defect through the extended warranty, I urge the federal safety agency to investigate this matter with heightened urgency. The potential for harm not only to myself but to other individuals on the road necessitates prompt and decisive action to ensure the safety and reliability of affected vehicles. I am prepared to provide further information and cooperate fully with any investigations into this critical safety issue. Thank you for your immediate attention to this matter. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jan 23, 2024 · Brakes, Electrical · FL

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

Filed Jan 19, 2024 · Brakes · CA

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.

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Questions about the 2015 Lexus CT

Is the 2015 Lexus CT reliable?

Owners have filed 16 complaints about the 2015 Lexus CT, fewer than a typical CT model year.

What is the 2015 Lexus CT year score?

The 2015 Lexus CT scores 82 out of 100 (good). The score compares it with the other model years of the Lexus CT: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2015 Lexus CT?

Brakes, with 9 complaints. Next is electrical (4).

How many recalls does the 2015 Lexus CT have?

No recalls on record.

What gas mileage does the 2015 Lexus CT get?

Official estimates for the 2015 Lexus CT range from 42 mpg combined. The most efficient version (1.8L 4-cyl hybrid, FWD) gets 43 city and 40 highway.

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