2012 Lexus CT problems & reliability
43 owner complaints filed with NHTSA for the 2012 Lexus CT. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
2 complaints report injuries (2 injured).
Federal crash records (FARS 2020–2023): 2012 Lexus CT vehicles were involved in 6 fatal crashes with 3 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine → | 15 | 35% |
| Service Brakes → | 11 | 26% |
| Unknown OR Other | 5 | 12% |
| Air Bags | 4 | 9% |
| Electrical System | 3 | 7% |
| Electronic Stability Control (esc) | 2 | 5% |
| Fuel/propulsion System | 2 | 5% |
| Structure | 2 | 5% |
| Suspension | 2 | 5% |
| Equipment | 1 | 2% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 40,000 miles (middle 50% between 16,100 and 101,200 miles), based on 21 complaints that included mileage.
Complaints by incident year
What owners report
“The brake booster assembly has developed a leak in the pressure accumulator resulting in constant actuation to keep the pressure sufficient. Complete failure is impending with a C1391 code and loss of power brakes. Toyota has offered a CSP to address this issue but only for a very limited time and at the time of…”
Service Brakes · filed Sep 7, 2025
“At ~101,000 miles, my 2012 Lexus CT200h triggered error code C1307, indicating a failure of the brake pressure accumulator / brake booster system. Prior warnings appeared via dashboard alerts. This caused reduced braking performance, creating a serious safety risk. The issue was confirmed by a Lexus dealer and…”
Service Brakes · filed Sep 5, 2025
“Brake failure while driving. The brake pedal went soft when pressed and all the associated warning lights illuminated. ABS, traction, control, etc. This is a known issue for Toyota and Lexus, and even after servicing my vehicle at the dealer for the last two years I was never notified that this was a concern.”
Service Brakes · filed Apr 12, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Pedestrian alert sounds
Defect Petition DP22005 · opened Jan 27, 2023 · closed Aug 7, 2023 · led to recall 22V063000
Technical service bulletins
30 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2012 Lexus CT. The 10 most recent:
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
L-SB-0024-24 · Service Bulletin/Repair Instructions · issued Apr 19, 2024
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
L-SB-0024-24 · Service Bulletin/Repair Instructions · issued Apr 19, 2024
Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
Safety Recall 22 · Service Bulletin/Repair Instructions · issued Apr 13, 2022
POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Lexus. This information must be kept near the point of vehicle sale and be…
Lexus PRO19-02 - · Service Bulletin/Repair Instructions · issued Jan 12, 2022
Lexus Safety Recall and Service Campaign - Technician Certification Requirements
Lexus Safety Re · Service Bulletin/Repair Instructions · issued Mar 31, 2021
Ti: technical instructions for limited service campaign klg customer support program 19le05 safety connect system ? Vehicle location inaccurate
KLG_19LE05-TI-Up · Service Bulletin/Repair Instructions · issued Aug 24, 2020
Ti: technical instructions for limited service campaign klg customer support program 19le05 safety connect system ? Vehicle location inaccurate
KLG_19LE05-TI-Up · Service Bulletin/Repair Instructions · issued Aug 24, 2020
Safety Recall and Service Campaign - Technician Certification Requirements
Lexus Safety Re · Service Bulletin/Repair Instructions · issued May 1, 2020
Technical instructions: technical instructions for limited service campaign klg customer support program 19le05 safety connect system ? Vehicle location inaccurate certain 2011 ? 2017 model year ls, 2013 ? 2016 model…
19LE05-KLG - TI- · Service Bulletin/Repair Instructions · issued Oct 17, 2019
Technical instructions: technical instructions for limited service campaign safety connect system ? Vehicle location inaccurate certain 2011 ? 2017 model year ls, 2013 ? 2016 model year ls hybrid, 2011 ? 2017 model year…
KLG_TI_091319 · Service Bulletin/Repair Instructions · issued Sep 13, 2019
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 2012 Lexus CT in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2012 Lexus CT?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 40,000 miles — budget accordingly if the car is approaching that mileage.