2012 Lexus CT service brakes problems
11 owner complaints filed with NHTSA name the service brakes on the 2012 Lexus CT — 26% of all complaints for this model 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…”
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…”
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.”
filed Apr 12, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Service Brakes problems in other CT years
| Year | Reports | Share |
|---|---|---|
| 2014 CT | 11 | 58% |
| 2013 CT | 17 | 40% |
| 2011 CT | 8 | 36% |
Other reported problem areas on the 2012 Lexus CT
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.