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 will buzz every few seconds trying to keep pressure in the braking system to a safe operating level of gas pressure to no avail due to this leak in the actuator. After it quits buzzing from shutting the car off, you can hear the air leak hissing the pressure away. There are many 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 CT200h. There are no external brake fluid leaks involved. for this actuator. Toyota covers it under extended warranty, although it appears as though Lexus does not(?), this is a major safety hazard and concern for a heavy amount on several different websites. The trouble code is: C1391. I called Lexus of Austin and was told there are no recalls, after looking up my VIN#. Searching for -??c1391 danger-?? will yield many incidents of this. This is quite a serious issue that needs government interference. Thank you for taking the time to read this.

- Georgetown, TX, USA

the brake booster pump has gone out in the car, ive heard many others say the same thing and its all around the same milage 150k-175k

- San Antonio, TX, USA

2012 Lexus ct200H has the same brake booster, assembly issue all 3rd generation Toyota prius's have. The ABS/brake system lights all come in, and brake functionality is limited. Attached is a scan of the issue, I have since called Lexus and notified them of the issue.

- Northridge, CA, USA

There is a well known flaw with Toyota hybrids that Toyota needs to address and fix. When you brake to come to a stop, if they car encounters bumps or potholes, the brake pressure will momentarily decrease and the car will surge forward. It does not appear to affect certain vehicles, but rather all hybrids. It can lead to a pedestrian being hit or other accident. It is most disconcerting to feel the car lurch forward while braking to a stop. Please investigate and put pressure on Toyota to issue a recall and repair.

- Syracuse, NY, USA