2012 Prius. My brake booster failed and was replaced under warranty extension at 7 years (11/2019) and 133k miles. I just reached 200k last week and the accumulator/ booster is demonstrating all the signs of failure again! Anyone experience this? I’ve searched, but cannot find anything. I’m shocked and disappointed the Toyota warranty replacement died after 5 years and 67k miles. As a frame of reference to my rising anger, I just put a new head gasket in it last April and a new battery in 2021.
Considering this car has 200k miles and is 13 years old, parts will fail and more parts are going to fail.
Not a lifetime keeper like many others have been in past . You don't do this anymore especially after 2010 cars aren't made for this planned obsolescence
Have you gone back to where you had the booster accumulator brake parts on the firewall replaced and ask them something? I'd be curious to know what they have to say about it I mean those parts are only what four years old now or something 2019 on 5 years old whatever certainly not Toyota's normal interval for parts to last generally not in my life anyway this is new stuff for the pre-planned obsolescence stage 2010 and forward this is all new to me. I quickly got out of two generation 3s as fast as possible once I realized kind of what was happening but it's happening across the board to everybody so you're either going old or you're picking up someone else's problems whatever dealer or whatever car manufacturer you use look at Kia and Hyundai other GDI engines used in other vehicles the EcoBoost etc everybody has got these serious problems trying to ring out the last 1/10 of a mile to a gallon of fuel they let everything go and the only prize that's in the eyesight is miles per gallon longevity and lasting of the vehicle is completely out the window I mean look at the insides of these cars they're made to go around the block a few times and the kids car seat in the back a few times and then they look like you should never get in them again might be something growing in there
I put every mile on this car and maintained it by the manual. The original brake parts were replaced by Toyota as part of the ZJB warranty enhancement around 67k ago. I am staggered that a Toyota part (subject to a huge campaign) is failing this quickly.
You're too kind, thinking they actually have a plan. I think they're just not testing enough, letting their customers do that, the hard way, with the brake booster, low-tension piston rings and the EGR.
But I thought he said it was done at the dealer part of the campaign and of course when he left with the car I'm assuming 67,000 mi of no lights on I would hope the old part wouldn't do that after it had come in and the lights were on and oh boy what a mess.
i don't mean the old part as in, they took it out and put it back in, or repaired it in some way. i mean they might have had parts in stock before whatever updates toyota did to fix them, and put one of those in by mistake
Allegedly they used part number 04006-22147 and 04008-11347. It was part of the ZJB003 campaign. It worked for 67,000 miles and then it is malfunctioning again. I thought they would have improved the design or manufacture of the parts in some capacity? I have been replacing parts on this thing knowing that of the trifecta of major problems that one was done.
If your second brake booster has not coded yet I would get a brake booster flush and see how long it lasts. I would be more worried about a second head gasket. Not sure where the idea started that 13 year old gen3 hybrids can be made reliable by simply replacing parts or cleaning egrs. It's more complex than defective parts; it's flawed engineering that was redesigned successfully in gen4.
It’s been reliable except for the brake booster(s), hybrid battery, and the head gasket. . . . . . . Only needed week long rentals 3 times!
The hybrid battery replacement is acceptable and it is part of being hybrid or EV. The head gasket, oil consumption, and EGR had been fixed in 4th gen. Even the late 3rd gen already fix the head gasket, oil consumption, and EGR is also much less problematic because of reduced oil consumption. But, for most Toyota owners, the 3rd gen is not what most people expected to be problem free in the first 200k miles. Many still went more than 300k miles without any issue but they do not always post anyting in our forum. Taxi drivers with 2015 or newer Prius V and Corolla Station Wagon in Europe.
Head gasket failure was not fixed with the 4th generation. People are still having issues. Since on a few have reported on the oil consumption, that's not a 100% resolution. EGR is still questionable
The oil consumption is because of 10k miles interval and some people driving the car under severe condition with 10k instead of 5k interval. There will be always head gasket failure in any car, but statistically it is not a problem.Lemon always exists even the newest 5th gen. There are also some problems on 2.0L 4th gen on Corolla 2019 hybrid with the port injectors that getting corroded/clogged and cause misfire.Especeially in Europe that comes from Poland factory. Overall, the 4th gen has the least issues and it has been around since 2016.
Toyota just sent me the 200k sticker. I love the car and took a few BMW E36s over 200k. I’ll fix the brakes and cheer it on to 300k. Anyone have experience with the Tactrix openport and techstream 2 day rental for brake bleeding?
What signs? Warning lights, codes, loss of power brakes? I would not fix if it's not broke. Techstream as we know it when "rented" has been replaced by a new official scanner. The required 2 day subscription for this access is $70 plus any hardware interface cost. I would let a dealer configure a new brake booster.
Possible low cost brake booster setup $59 TOPDON TopScan OBD2 Scanner for Brake Booster Replacement Brake Booster Replacement and Detailed Setup using Techstream
Thank you for the links. And it’s making the same sounds it did when it went last time. It may be tomorrow or 5,000 miles and a few months.
