The brake booster and pump are a known issue for all ct200 models 2011-2013. The brakes do not work as intended which is a safety issue. The attached file is acknowledgement by lexus that this is an issue. Though they are not covering the problem
A prevalent issue observed in the lexus ct200h and toyota prius v models is the internal leakage of brake accumulators, as they utilize identical part numbers. Consequently, the actuator emits a buzzing sound intermittently as it attempts to maintain the necessary gas pressure within the braking system, ultimately failing due to the leak. Numerous articles addressing this concern are available online, highlighting its significance as a safety issue. Many owners have successfully had toyota replace the faulty part at no cost, thanks to the extended warranty covering a period of ten years or 150,000 miles, whichever occurs first. This may be attributed to the higher prevalence of prius vehicles on the road compared to the less common lexus ct200h. A simple search for "c1391 danger" will yield substantial information on the topic. It is disheartening, in my view and that of many others, that a problem posing a risk to public safety due to brake failure has not been adequately addressed. The sudden onset of this issue significantly reduces stopping distances. When it occurs, warning lights for abs, traction control, and brakes illuminate simultaneously. Notably, there are no visible brake fluid leaks associated with this actuator. While toyota provides coverage under the extended warranty, it appears that lexus may not offer similar support, raising concerns about the safety implications discussed across various platforms.
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 is not much stopping distances when and after this suddenly occurs. In the process, the abs, traction control, brake, a yellow exclamation mark, lights suddenly all come on the dash at once and the brake feels like a sponge very suddenly. The brake booster pump may fail causing a deactivation of the vehicle stability control system and a loss of braking assist. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 126, electronic stability control systems. "" deactivation of the vehicle stability control system or a loss of braking assist increases the risk of a crash.
I, along with many other lexus ct200h owners have had issues regarding the brakes on the vehicle. I have code: c1391 as reported on a diagnostic tool from autozone. This has been an issue on my vehicle for months and i’ve read reports of this repair costing upwards to $3000!! Many of us do not have that kind of money to fix a vital function of the vehicle that rely on to keep us safe. If it’s a common and reoccurring issue, i believe it should continue being taken care of by the manufacturer. There was a recall in the past, but it isn’t fair for those who have had this issue after the recall and are responsible to pay this ridiculous amount afterwards!
The brake booster and brake booster pump assembly malfunctioned dec. 25th 2022 on christmas day a month after the deadline for a customer support program notification ( primary coverage til. Nov. 30,2022. Secondary coverage 10 years or 150k whichever comes first from the date of 1st use-08/16/2011. ) i called toyota to inform them and get them to solve this issue. Toyota/lexus refuses to pay to fix this huge safety issue. The estimate for this is $4,000-$5,000 dollars. When this went out all the lights came on in my car including: master warning light, brake system warning light, abs warning light, and the slip indicator light. There is a pumping sound like a barking from a dog. The car is solely relying on the other brakes to slow the car down. After the brake booster went out i was driving on the highway and tried to stop in time for a curved exit. The stop was too much for these brakes alone the car started shaking and spun out of control. Luckily i was able to pull aside without hitting other vehicles or the median. It scared me so much. This is a known problem that they refuse to fix and pay for. This component has been inspected by a local car shop. This is my only car. I drive it only when necessary. I try to avoid highways and fast speeds because i know that these brakes are not sufficient for a safe stop. Even at speeds of 35 mph of less the car shakes when breaking. I think toyota should fix this issue and pay for it indefinitely. The part they created is obviously faulty. It doesn't matter if it is 5 yrs, 10 yrs or 20 yrs. Its a fault on their part that is a huge safety issue and expense on their customers when they are company that prides themselves on safety and longevity with their vehicles. I am saving to replace this issue and or get another vehicle. In the meantime this unsafe vehicle will be on our roads occasionally.
Abs, traction control , brake, a yellow exclammation point, red brake light all come on, as warning lights on the dash board, and the breaks start to feel spongey and not work as well. The actuator starts to buzz every few seconds trying to keep pressure in the braking system, but it cannot due to a leak in the accuator, in which then causes the abs system to deactivate, a known problem of the lexus ct200h, many of the other lexus had this problem as a recall as well- lexus should be fixing this for people its a major safety issue that the brakes start to not work out of no where and its not fair to the owner to be responsible for this enormous bill to fix when its a known problem of lexus! It states online all over the place that ct200h vehicles may have brake, abs and or trac warning lights on or a check vsc message displayed due to a small brake fluid leak inside the brake booster assembly with master cylinder, abs actuator failure, and online lists all the codes. It says if the condition is verified the vehicle will be repaired with new brake booster and brake booster pump assemblies but not all lexus establishments are cooperating with this, and its not safe!
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.
Early morning cold start in open loop engine starts to rattle and knock. Cleaned out egr system, including intake manifold. Engine still rattles and knocks. Swapped out ignition coils and fuel injectors with new still and still the same thing. Dtc sets after a week of troubleshooting for p0303, p0301, and p0300. Switched cylinder ignition coils and fuel injectors from cylinder 1 to 2 and 3 to 4. Same dtc sets after drive cycle. Leak down test confirms cylinder 3 has head gasket leak. Registration was just paid and was going to have it smog test. Unable to pass smog due to check engine light. I had went to lexus dealer to have them update my car for egr update according to tsb (see attachment) but they wouldn’t do it unless i pay $300 smfh!!! What a day! Which engineer suggested this stupid design?!?! And wtf the egr cooler, more like a heater, has coolant running into housing which raises the engine coolant temp. Exhaust gas may go up to a temp of 600 degrees!! Look at live data and monitor catalyst temp from obd2. This design was to intentionally cause a head gasket failure. Blades in egr cooler gets clogged with carbon build up, where carbon will eventually break up into chunks/pebbles that will cause pre-ignition during compression stroke, pinging the engine which will result in misfires and damage the catalyst. One of the worst designs i’ve ever encountered as a car owner. This is ridiculous that this issue has been brought up countless times from thousands of testimony’s of same incident but not even a single word for these models. Ct200h and prius years 2012-2015 have this same dam problem and everyone knows this, even the ca bar(bureau of automotive repair). What is it that we as car owners, who abide by the law, and pay our fair share of taxes gets this “setup to fail” deal???
I am writing to bring to your attention a serious safety issue that occurred with my vehicle. While driving on the expressway, the engine oil burned and the oil warning light illuminated on the dashboard, posing a significant risk to my safety and the safety of others on the road. Specifically, the engine oil system malfunctioned, causing a sudden and complete loss of engine lubrication. This incident can be verified through an inspection of the vehicle, which is available upon request. My safety and the safety of other motorists were severely compromised due to this malfunction. The sudden failure of the engine oil system could have resulted in a catastrophic engine failure, potentially leading to a loss of control of the vehicle at high speeds. Fortunately, i was able to safely pull over to the side of the road, but the situation could have been much worse. Upon experiencing the issue, i had the vehicle towed to service center where the problem was reproduced and confirmed by a certified mechanic. They conducted a thorough inspection and confirmed that the engine oil had indeed burned, leading to the illumination of the oil warning light. The inspection report from the service center is available for review. Additionally, i reported the incident to the vehicle manufacturer and my insurance company. Both entities have documented the issue, and i am awaiting further instructions on how to proceed. There has been no involvement from law enforcement as there was no accident or injury resulting from the incident. Prior to the failure, i did not notice any warning lamps, messages, or other symptoms indicating a problem with the engine oil system. The warning light appeared suddenly while i was driving on the expressway, giving me no advance notice of the impending malfunction. Given the severity of this issue, i urge you to investigate this matter thoroughly to prevent any future occurrences. The safety of driver and passengers is of utmost importance.
The brake accumulator loosing pressure for the brake booster and abs, the actuator will buzz every few seconds trying to keep pressure in the braking system to a safe operating level of gas pressure. It isn't holding pressure due to this leak in the actuator. This is a very serious issue which endangers the lives of others due this brake failure is not being fully addressed. There is not much stopping distances after this suddenly occurs. In the process, the abs, traction control, brake, a yellow exclamation mark, lights suddenly all come on the dash at once and the brake feels like a sponge very suddenly, and the car has little to no brakes. This can lead to a major accident. Toyota/ lexus have an extended warranty that expires in at a 10 year mark or 150k miles but several complaints of this failure has been just after that time usually with in a few months and come at a high cost of repair almost $3-4k, fortunately i searched the internet for the warranty info and my vehicle is just under the warranty period by a few days and couple miles but the amount of people who currently drive these toyota/lexus models that may experience this failure is pretty high