2018 Chevrolet Silverado 1500: grinding or squealing brakes

Filed Jul 24, 2025 · Acceleration, Engine · PA

10 miles from home on [XXX] after Thanksgiving with my children sleeping at [XXX] in snowy cold weather, my engine began to fail. Power was limited on hills and the check engine light would come on and go back off when on flat or downhill. The next morning I took my truck to the dealer that I purchased it from where I was told the lifters had failed and I need a new engine. 1000 miles after I replaced my engine my transmission failed completely requiring a transmission replacement. Immediately upon picking up the vehicle and going down a long hill in the area, engine breaking turned on as expected but as the truck tried to slow itself, after 2 or 3 downshifts, the transmission began making a loud grinding sound and while still going close to 50 MPH, the speedometer showed 10-15 MPH and the tach dropped to idle. The transmission was decoupled from the motor. When gas was reapplied it seemed to make the connection again and resume normal driving. I called the dealership whose techs did not believe me and told me that I could 'turn off' the engine breaking feature. The situation continued to worsen each drive and it would do it more often. This was unacceptable and they finally had a tech ride with me to experience it and immediately agreed there was an issue and reordered another transmission. The third transmission did not fix the issue and was experienced immediately. They are now guessing how to fix the issue telling me I have to replace the transfer case out of my pocket with no diagnosis, not sure what is causing it and have not fixed the problem. Videos would not fit in upload due to size. Videos show speedometer failure. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 20, 2022 · Brakes · LA

The trailer brake system warning suddenly came on, disengaging my cruise control. My cruise control has not worked since. Also, the stabilitrac warning came on and has not left. Ever since then I have been hearing a squeaking noise driving at low speeds.

Filed Nov 30, 2021 · Brakes · MO

My 2018 chevy silverado started making weird squeaky/popping sounds it almost sounds like something is rubbing against something else when stepping on the break pedal. When driving at any rate of speed the pedal seems to not make the squeaking noise but when I make a complete stop for example at a traffic light and let go of the break pedal and press again I can hear that noise loud and clear even passengers can hear it, Another example would be going in a drive thru of a restaurant that pretty much break pedal is used every 3 seconds as you pulling forward there the noise becomes constant every time stepping and letting go of the break pedal. My silverado has about 80,000 miles on it

Filed Mar 10, 2021 · Brakes, Electrical · 18,000 miles · FL

When the vehicle was started, a loud squealing sound was heard coming from the vicinity of the front of the engine. While under the oem bumper to bumper warranted period, chevrolet dealer number one was not able to determine the problem or repair it. Furthermore, the problem was not reported in the vehicle history as reported. A short period later, chevrolet dealer number two was able to locate the problem and repair it at my personal expense as the warranted expired on time as opposed to mileage. I learned that the same problem was a part of a previous recall which dealt with failure of the brake assist pump. Gm rectified the recall by changing the computer software to overdrive the pump beyond it's original design speed. This provided an increase in pressure which temporarily corrected the failure. The corrective action added more stress to the original design of the pump and now the pump is mechanically failing as a result. This failure could potentially cause an immediate unexpected brake failure potentially resulting in frontal collision and loss of life!. The dealers have not provided copies of service orders or replaced parts. I only have rental agreements to substantiate that something was done to the vehicle. Gm's customer care is investigating the unprecedented behavior of the franchised dealers with no reply to me at this time.

Filed May 1, 2020 · Engine, Suspension · 42,500 miles · FL

Transmission shifts hard from first to second/second back to first. I noticed this about a week after purchasing truck. Shifts hard mostly in 2wd, not so much in 4wd or hauling/towing. Leaf springs and shackles have squeaked since day one of purchase. Engine oil pressure is at 12-15psi at idle and will not exceed 32-35 psi under normal conditions with or without a load. I've changed the oil filter and oil pressure sensor multiple times. There also seems to be a chirp/tick coming from the passenger side of the engine compartment. I've been trying to narrow it down for the last few weeks. Seems to be something going on in the engine itself or possible the AC compressor. Truck has 42,450 miles

Filed Dec 19, 2019 · Transmission · 15,000 miles · TN

Transmission slips, transmission downshifts hard, transmission will have a loud thud when reengaging after taking foot off gas pedal in stop and go traffic, especially on the expressway. Thud can be felt in the cab of the truck. Electronic 4 wheel drive grinds when engaged in motion. 4 wheel drive grinds when turning even the slightest bit. Upon first starting vehicle transmission hesitates until temp reaches 125 degrees at least.

Filed Dec 15, 2019 · Suspension, Transmission · 13,000 miles · FL

Squeaking noise under box. Dealer took 2 months to get a replacement leaf shackle for left side. It did stop the noise. My transmission has a hard shift in gears when taking off and coming to a stop. Transmission seems to hang up shifting from low gear t a higher gear and does the same when coming to a stop. Seems to be getting worse. New truck, now has 21,000 miles but worst investment I have made switching from a foreign truck back to made in america. This hard shifting takes place when starting off or coming to a stop on any highway or street.

Filed May 13, 2019 · TX

I purchase a 2018 chevrolet silverado in november of 2018 that was defected. Took it to the dealership 3 times for repair for the same problem. Dealership couldn't fix it so they traded it for another 2018 silverado. The 2nd truck has the same problem with the transmission. It's makes a grinding vibration between 40 and 50 MPH and it makes a sound like something is going to come apart or something is getting ready to fall out.dealership huffines chevrolet in lewisville,tx saids it's my driving habits. General motors stated the problem go's away over time. If problem go's away over a period of time,why did it go away on the 1st truck. Transmission is defected and they know it. At this point all I want is my money back. I've been frustrated for 6 months over my truck. It's unsafe to drive because of grinding and vibration. I'm now going to continue to make payments on a unsafe defected vehicle.

Filed Apr 24, 2019 · Transmission · 13,504 miles · FL

Transmission slips, knocks, and grinds in some instances. No check engine light from these issues but spent 30k + and I having these issues at 13,500 miles.

Filed Mar 22, 2019 · Suspension, Transmission · 5,500 miles · CA

Takata recall. While backing out of my driveway I heard a loud clunking sound coming from the under carriage of my truck. It stopped for a second and then did it again the clunking sound got progressively louder. I noticed the sound at low speeds, high speeds, going over minor bumps and big bumps in the road. Additionally, while going over big bumps I could hear what sounded like flexing and/or grinding metal coming from the rear suspension. I stopped the vehicle and proceeded to rock it back and forth and noticed the knocking/grinding sounds coming from the under carriage and the suspension. I got back in the vehicle and drove off and the sounds again started. I have infant twins that I was driving in my vehicle at this time and I became very concerned for their safety and mine. I took the vehicle to the dealership (since it is brand new and at the time only had 2-3k miles on it). They said "its a known problem in chevrolet trucks" the paperwork they gave me after the "repair" stated" lubricate rear leaf springs and re-torque bolts" this indicates I had loose suspension components. The problem occurred again and I again took the truck to the dealership. They again stated the same repair and refused to provide any other remedy and also refused to replace the leaf springs. The same problem happened again. Again I took the truck to the dealership and again they refused to provide any other form of service to remedy the problem. My truck has less than 8k miles on it and it has been in the shop on 4 separate instances for the same suspension problem. The clunking and loose suspension noises have returned and I will be taking the truck in for the 5th time. This is unsafe, and my wife refuses to drive in my truck nor allow me to drive our children in our truck because shes concerned for their safety!