Increased brake pedal effort caused by faulty brake vacuum pump. Stiff brake pedal at low speeds and increased stopping distance

- Nevada, IA, USA

Lose of breaking power at low speed. I lost all breaking power trying to maneuver in a parking garage and parking lot. There are no lights that come on during or after this. I have had it happen 3 times almost resulting in damage to my vehicle and others. The break peddle stiffens and provides almost no breaking.

- Chattanooga, TN, USA

At slower speed the braking system seems to fail. The brake pedal needs to be pressed hard but sinks and the car does not stop. This is only happens at speeds less than 15 miles per hour. It feels like the cars does not stop and I have to put much more pressure than usual. I usually put car in park and restart it and it is fine until the next time. It has happened numerous times in last couple of years. I did take into the dealership and they could not find anything wrong

- Castaic, CA, USA

Vehicle brakes become very hard to depress making it hard to stop the vehicle I find this happens more at slower speeds and in reverse

- Greensburg, PA, USA

The brake pedal on my truck turns real hard and the brakes don't seam to engage as usual this happens at low speeds or in a downhill. This has happened in the highway on I15 coming to Nevada from California on a downhill with traffic present and at low speeds. It has also happened in a drive thru and a parking lot truck was in motion and at low speeds I applied the brakes and the pedal turned hard/stiff and makes a screeching sound. The truck does come to a stop but travels more than usual when brake pedal is normal.

- Las Vegas, NV, USA

Pulled into the parking lot at work at low speed when applying the brake to backup I noticed the brake pedal was very hard. I put my truck in reverse to back into a parking spot, the brake was very hard and wouldn't stop. When hit the fence the truck finally stopped. Called the dearler where I got the truck, they said there's a recall and the brake system needed to be reprogrammed but that wasn't going to fix it. 2019 I took the truck in @ 60,000 miles, they did a reprogram and said they couldn't do any thing else unless there was another brake recall. The bad thing about this whole brake problem is GM knows what the problem is and won't fix it. GM has and will fix the problem if you pay 12 to 1,600 dollars. Since they did the reprogram I have 80, 000 miles on the truck and at low speed at a traffic light or in parking lots the brake is very hard and the ABS system will activate. Same problem different day. I need new bombers now. I guess GM is waiting for someone to get hurt.

- Hitchcock, TX, USA

While driving at parking speed or drive through speed my brake pedal gets hard and I lose brake. I've almost wrecked a few times already because of this issue.

- Tulare, CA, USA

I got a recall done buy a Chevy dealership in storm lake Iowa, so they say they did it but after a few months of driving I noticed the my truck started breaking different at low speeds just like the recall was for the recall number is N192268490. Just didn't know if there was something I could do so I don't have to pay to get it fixed when it's not my fault the breaks won't work like they are supposed too!

- Newell, IA, USA

Brakes start failing ( brake pedal hard) when parking after driving

- Cape Coral, FL, USA

When I apply my brakes at low speeds or have to apply a decent amount of pressure I hear a high pitched noise and my brakes get hard and I have a hard time stopping. I also feel a catch and release kind of jump in the petal when this happens like the brakes catch then release.

- Sebastian, FL, USA

When I put my vehicle in reverse when backing down an incline my break pedal gets hard and the vehicle takes longer to stop and the steeper the incline the harder it is to stop this only happens when I am in reverse also the brake peddle has some vibration when this happens. I read your article on GM vehicles having this similar problem I ran my VIN number for a recall and nothing came up for my vehicle. Also if this is a recall issue I have not received a notice from the manufacture.

- Aston, PA, USA

After driving the truck for about 20 min, the truck loose a little bit of power then the breaks begin to get harder and harder till the front breaks lock up, after they lock up I have to park it for atleast 10 min then you feel them unlock and you can drive again, sometimes only a couple more min or till the next day, had it into the Chevy dealership were they could not find anything wrong except some old stored codes, I showed them the code I kept getting and they said they didnt so mine couldnt be right, but to bring it back if it happens again. Tonight I pulled into work, I work midnights and my front rotors were glowing lava red. Breaks locked up after the stabilatrak service light comes

- Adrian, MI, USA

I had just pulled into a parking lot and positioned the truck to back it in into a parking space, when the truck was put into reverse my brakes became very hard and I had no stopping power. I put the truck in drive and the same thing happened, I then turned the truck off after putting it in park. Waited a few moments applied pressure to the brakes and started it. When the engine turned over the brakes softened with a vibration, and I accelerated forward to take it around the parking lot and the brakes seemed to be working again. I also got a service brake assist notice on my dash when I started the truck this morning. Upon investigating, seems to be a known issue? I do not feel safe in my truck now and I do not even want to drive my children around.

- Glendale, AZ, USA

RPM increases between 4 and 5.5K but unable to acceleration after descension from hill while driving on I-17. It appears my transmission/gears slip following hill descents. On 6 occasions, while driving to and from moab, Utah on Aug 9-10, the engine revs up to 4.5 - 5.5K at the bottom of the hill/decline. I could not get out of the gear or pick up speed upon acceleration. Braking did not stop the revs. I just kept my foot off the brake and accelerator until the gear eventually kicked in. Otherwise the truck ride and drive is amazing and no other problem except getting annoying gear clunks now and then, every since I purchased it. Back in 2017 midway Chevy said that is not a problem. Well, I drove my truck for the first time yesterday since the incident. The problem reoccurred while descending a very small hill in anthem. This time span was much shorter. I want to mention that I have driven my truck up I-17 from anthem, AZ to flagstaff and beyond at least 20 times in the last 4 years and never experienced this. I do not have a floor mat or anything on the driver side floor of the truck. There are no signs of trans fluid leaking (on garage floor etc.), no way to check my trans fluid level. No messages showed up in the dic (driver info ctr), or on the dashboard instrument cluster (message center) (I.e.: transmission, speed, service brake assist, etc.), no diagnostic warning and the August monthly diagnostic report did not reflect any problems. I don't think any features were accidentally turned on while driving (I.e.: tow/haul, hdc, grade braking etc.). the problem continued after turning truck off and restarting, which should disengage most features. I am a 70 year old woman and haven;T driven the truck hard or never hauled anything. I am 2K miles out of warranty. Will never pay 53K for a vehicle with such a lousy drive-train warranty.

- Anthem, AZ, USA

I was backing in to a lake to pull my boat out and almost went right in the lake. Emergency brake saved me. This is the most dangerous situation I have ever been in in my 56 years of living. I am filing a law suit.

- South Beloit, IL, USA

In a parking garage and trying to maneuver into a parking stall. The brake pedal became very hard. The ABS light flashed momentarily and went out. There were no power brakes and very little effect to standing on the brake pedal. Put vehicle in park and restarted it. Continued to have no or limited brakes. Went on to another parking stall where no one else around. Crept into spot. When arrived back from trip, brakes were fine. Called local Chevy dealership and they replaced vacuum pump free of charge. Has only happened 2 times since them. All in parking lots at very low speeds.

- Laurens, SC, USA

I was driving and lost all power I had no lights no steering no breaks and then everything came back on this is very very dangerous research it and there is a lot of people having the same problems something needs to be done

- Freeport, IL, USA

When switch from reverse to drive and move forward than step on breaks it's gets harder and don't stop the vehicle. Also it's happen to me on the freeway when I was slowing down in traffic and it's come to stop and slowly moving the vehicle my brakes was too hard to stop the vehicle, I almost going to hit the other vehicle.

- Sacramento, CA, USA

I drove almost 5 hrs away to take my family on a vacation and when I pulled into the hotel I almost couldnt stop and noticed my parking assist service was on on the dash. I tried backing up and I almost could not stop from backing into another car. And it keeps doing it every now and again. The brakes are hard to push and it feels like are palpatating and also feel like something is under my brake bc it barely pushes in.

- Venus, TX, USA

Took my truck in for the recall on brakes. Dealer performed the recall service. Brakes still exhibit problems. Brakes become mushy at low speed after applying brakes gently, then moving forward slightly at low speed brakes seem to collapse and exhibit a low grumbling noise. Pads and rotors are good, so not the issue. It leaves me wondering if recall was done or done correctly.

- Midland, TX, USA