Brake Master Cylinder Problems of Toyota Tacoma

The contact owns a 2015 Toyota Tacoma. The contact stated that there was brake fluid leaking from the brake booster which was leaking into the cabin. The contact stated no warning light was illuminated. The vehicle was not taken to a local dealer to be inspected. The manufacturer was not informed of the failure. The failure mileage was approximately 42,000.

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In a matter of minutes, the brakes were fine and then they weren't. There was no notice given. Pushed on the brakes, the pedal went to the floor and did not stop or slow the vehicle down. Pumped the brakes and was able to safely decelerate, but not before almost crashing into the car in front of me. An independent brake shop has indicated the master cylinder is leaking internally. There is a safety recall (18v-888) for production dates of 30 days before this vehicle was produced. Seems to me that this vehicle exhibits the identical behavior in the recall that applies to "not" this one. At least at the time of this writing.

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When applying the power brakes at a stop the pedal after a few seconds starts to fade to the floor if released and reapplied they come back up to stop position and will fade again. When backing up and brakes are applied and backing slowly to house garage the brake starts to fade to the floor and has to be reapplied to stop the truck. Yesterday in a shopping mall I had to go around a parked car with another car headed in my direction had to apply brakes and slowly move past the parked car the pedal went so far down my foot hit the accelerator and had to take my foot off the brake pedal and reapply the brakes. Had truck back to Toyota dealer twice and they insist there is no problem with the truck. If you have ever driven an older car where the master cylinder fails that is exactly what it feels like, having that experience once in my driving career of over 60 years/ the truck to me is not a safe vehicle to drive and am concerned for myself and my wifes safety. Called customer service 1-800 number and was told nothing they can do if service dept said no problem with the truck, looking for some solution I see others have posted the same problem on your web site. Thank you .

I own a 2020 Tacoma with 14k miles on it. I was driving my truck and I went to hit my brakes and the pedal went straight to the floor. I was able to get partial brakes by pumping them up like when you are bleeding new brakes. Took truck to Toyota and they had it for 10 days. There was a total failure of the brake master cylinder. If this scenario would have occurred while driving in traffic or on the highway the end result could have been fatal. The Toyota service manager said he had never seen anything like this before and they had engineers have them run tests on the part while on my truck so they could find out why it happened.

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I have made replacement on the front brakes, I done this twice this yeas 2020. And it continues to do the same , the brake petal keeps moving down as I keep pressure on it. It works fine for the 1st two weeks. Mechanic suggested to replace master cylinder.

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When driving my 2019 Toyota Tacoma (approx. 6900 miles) I noticed the brakes were not firm after initial application. The pedal then would slowly sink to the floor and braking power was drastically reduced that time. I pumped the brake and achieved better braking result but when constant pressure was applied the braking result diminished very quickly. This continued during all driving conditions. To me it very closely resembled a master brake cylinder seal failure, which I have experienced with vehicles in the past. I checked the brake fluid level and operated the brakes in a stationary position and the same symptoms occurred. The brake fluid in the reservoir was at the correct level and did not vary. I was able to return the vehicle to the dealer for diagnosis and repair. Upon inspection of the vehicle I was notified that the technician believed the brake master cylinder was faulty. The dealer has ordered the replacement part and provided a rental vehicle at no charge. I was informed everything would be a warranty covered repair.

Recall issues have been reported via phone calls and emails to dealership since March-2020 but have yet to receive any assistance on matters for two recalls, one in dec2018 for the brake master cylinder and another in jan2020 for the low pressure fuel pump. Brakes are always making a loud noise especially on reverse.

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Tl the contact owns a 2009 Toyota Tacoma. The contact stated that while depressing the brake pedal approaching a stop sign, he had to pump the brake pedal each time to bring the vehicle to a stop. There was no warning light illuminated. The vehicle was taken to Toyota of fayetteville (1352 w showroom dr, fayetteville, ar 72704) where the brake master cylinder was replaced however, the failure recurred. The vehicle was taken back to the same dealer and the contact was informed that the vehicle operated as designed. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 176,000.

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Tl the contact owns a 2018 Toyota Tacoma. While driving various speeds, there was a vibration in the brake pedal when it was depressed. The brake pedal was applied and traveled to the floorboard. The vehicle failed to respond. There were no warning indicators illuminated. The vehicle was taken to jeff wyler Toyota of springfield (2237 w 1st st, springfield, OH 45502, (937) 525-4642) where it was diagnosed that the rotors needed to be rotated, resurfaced, and the drums needed to be repaired. The vehicle was repaired, but the failure recurred. The manufacturer was contacted and provided case number: 1905151322. No further assistance was provided. The contact stated that the failure was similar to NHTSA campaign number: 18v888000 (service brakes, hydraulic). The contact requested diagnostic testing on the master cylinder. The failure mileage was approximately 14,900.

Tl the contact owns a 2014 Toyota Tacoma. While driving 30 mph, the vehicle did not respond when the brake pedal was depressed. The vehicle continued to roll and slowed down. The vehicle crashed into the preceding vehicle at 2 mph. The air bags did not deploy and there were no injuries. A police report was filed. The vehicle was towed to cherokee county Toyota (301 liberty blvd, canton, GA 30114, (770) 704-9525). The dealer replaced the master cylinder and brake booster, but new brakes were not installed. The dealer refused to give the vehicle back to the contact. The manufacturer was notified and provided a case number. The contact was advised not to touch the vehicle. The failure mileage was 40,000.

When vehicle was turning left from a two lane state road onto a downhill country lane the vehicle brakes failed and the brake pedal was depressed to the floor. The vehicle responded to application of the hand brake. Subsequently, the vehicle brakes did seem to work somewhat when rapidly "pumping" the brakes to provide stopping ability. The vehicle was then slowly driven to the closest Toyota dealership (bill kidd's Toyota, cockeysville MD). Part that may have become inoperable: braking assist/master cylinder.

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The wiring harness cable from the sensors to the computer burnout and the seatbelts doesn't respond right especially with his unraveling and doesn't lock good or pool and the master cylinder it's not function correctly either it's like it's not stopping the brakes are not stopping I know the vehicle is old but still this is a defect and very has for the drivers of all the vehicles my 1998 Toyota Tacoma sr5 2. 4 liter 2 wheel drive.

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The clutch master cylinder cracked.

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The contact owns a 2015 Toyota Tacoma. While driving approximately 10 mph, the brake pedal was depressed and the vehicle continued to accelerate. The emergency brake was engaged however, the vehicle slightly scraped the concrete driveway wall. There was no personal injury. There was minor damage to the front bumper. The vehicle was taken to the dealer, who replaced both the brake actuator and master cylinder. The bumper was not replaced. The manufacturer was notified of the failure. The failure mileage was 9,000.

Brake failure thinking due to wear and tear-- brakes serviced -- new brake pads on front back pads still good -- brake cylinder had to be replaced on front passenger side -- brakes bled off still no brakes only have brakes if pump them continuously -- at the moment still in shop trying to find a master cylinder to replace the one in it to see if that will fix the problem.

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In stop and go heavy traffic on interstate, brake pedal went almost to the floor. On taking truck to Toyota dealer, a failed brake master cylinder was replaced under warranty. No explanation was offered as to why a vehicle with only 6000 miles on it would suffer a failed brake master cylinder which could have resulted in a crash and injury to other cars and passengers.

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Vehicle has approximately 38,000 miles, 2007 Toyota Tacoma. I was traveling approximately 3 mph when four indicator lights illuminated and a warning alarm constant tone. At that point I lost all power to the braking system. I did not experience any issues leading up to this incident and the dealership has been unable to diagnose the cause of the complete loss of power to the brakes. The dealership stated I would need to replace the entire abs actuator assembly (master cylinder assembly, with engine control module, with booster pump). Toyota currently experiences a national back order on the required parts to repair the vehicle (part numbers 47050-04041 and 47070-04020). I am concerned that there is a larger problem with the braking system that has not been addressed by Toyota. I was further told that this issue is extremely rare but with a back order on the parts and no anticipated delivery date, I am very skeptical. It seems there have been some braking issues with other Toyota models around the same time frame.

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Braking took much longer to stop. Ceramic pads were installed. Brake pedal now goes to the floor when stopped. Master cylinder was replaced by Toyota on 2/25/2010. The brake pedal still went to the floor when stopped. Toyota checked it on 4/05/2010 and said all their newer trucks loose vacuum and the pedal goes to the floor. Called Toyota headquarters and they said this isn't normal (4/07/2010). Toyota inspected brakes again on 4/12/2010 and said it's normal for the brake pedal to go to the floor at a stop. I have a 2006 Toyota Tacoma w/ 40k miles. Toyota showed me a 2007 Tacoma that did the same thing. My pedal never went to the floor before the master cylinder went. Many mechanics tell me it's not safe for the pedal to go to the floor. If you feel this is safe ok. If this is not safe please investigate.

Tl-the contact owns a 2008 Toyota Tacoma. The contact stated that while driving at a 55 mph, the brake pedal was depressed, however, the front passenger side wheel locked. The failure recurred on numerous occasions. The vehicle was taken to an independent mechanic who diagnosed that the master cylinder needed to be replaced. The vehicle was repaired. However, the failure persisted. The vehicle was taken to multiple independent mechanics who diagnosed that that the abs brakes needed to be replaced and a dealer who stated that the master cylinder needed to be replaced. The vehicle was taken back to an independent mechanic who replaced the master cylinder. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 2,000. Oo.

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2007 Tacoma 4x4 4 door trd. Driver approached red light attempted to step on brakes to stop and they did not work. Driver ran through red light and noticed black smoke from engine compartment, then flames. Took about a mile, while the engine was on fire, to stop the vehicle by downshifting and e-brake. Had no prior brake problems with vehicle. Insurance is doing investigation at this time. Fire department advised the heaviest fire damage was located near the brake line and master cylinder area.

: the contact stated while braking, the brake pedal went to the floor. The vehicle was taken to a service dealer, who determined the master cylinder was defective. The consumer had the vehicle repaired. Updated 12/01/06.

The master cylinder is leaked. The dealer inspected the vehicle but could not duplicate or correct the problem.

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