Suspension Problems of GMC Sierra 1500 - part 1

My 2020 GMC sierra denali diesel with approximately 90,000 miles experienced two separate front suspension failures within a short period of time. The driver side tie rod and wheel hub failed first and required repair. Shortly after, the passenger side front suspension failed in a similar way and the vehicle had to be towed. These failures caused the front wheels to become unstable and created a serious safety concern while driving. Suspension components such as tie rods and hubs should not fail at this mileage under normal driving conditions.

See all problems of the 2020 GMC Sierra 1500 🔎.

1. Electronic power steering modular issue. My 2018 GMC seirra 1500 crew cab just lost all power steering. Then when I park it. Assist notifications come on, abs notices, brake light stays on, trailer/tow notifications, trailer assist, parking brake, etc suddenly a loud thump & feels like the whole truck just drops like 5” inches, settling. I cannot afford an inspection (id theft in 2025, compromised all accts & all credit cards) but. It is available as long as cost is covered by you !! 2. Lucky it happened in a grocery store parking lot. However not expecting power steering to go out, almost hit a pedestrian. 3. No it has not ben inspected yet I can’t afford the bill 4. No it has not been reported what for I didn’t hit anybody and the cops in this area they could give her rats ass they don’t make a report the question you like you’re like a criminal. 5. No warnings or anything until it happened that day leaving the grocery store. There is absolutely no notification it was gonna happen. It ran fine when I parked it to grocery shop come back out & I could barely back out to leave. I can lift up my had fatboy if needed so I’m sure turning a steering wheel…. Lol thnx a lot if I could figure out what part needs to be changed out or you could cover the parts needed. I do work in cars or have in the past, I don’t like the new ones, but this seems simple enough if I knew exactly what part I needed to pull out change out or I see that there’s recalls on previous vehicles and GMC after2020- 24 but I don’t see 2018 didn’t happen so I like to say whoever created that electronic steering can take that module along with the harness and they know exactly where they can put it don’t they I’m just saying as a used to be not sure now a GMC supporter, but I’m starting to think twice now if I.

See all problems of the 2018 GMC Sierra 1500 🔎.

Transmission shuttering which was confirmed from from GMC dealership , but refused to do any repairs after confirmation or diagnostic and test driving. Demanded a 220$ fee be paid before releasing my vehicle back. Also gave GMC bulliten # 25-na-148 which states the same issues I'm currently having.

See all problems of the 2021 GMC Sierra 1500 🔎.

While driving 13-15mph down the road the front right upper control arm ball bearing sheared off causing the tire to lean in rubbing the wheel well, forcing my truck to veer to the left across the other lane of traffic. Luckily there wasn't any car next to me.

See all problems of the 2019 GMC Sierra 1500 🔎.

I am writing to formally express my dissatisfaction regarding a significant safety and reliability issue with my 2020 GMC denali. Specifically, the vehicle is experiencing premature wear and imminent failure of the front ball joints. I expect the suspension components of a premium denali-trim vehicle to last significantly longer than the 37,061 miles currently on my odometer. Industry standards typically place the lifespan of these components between 70,000 and 150,000 miles. Technical details of the failure: the vehicle is currently exhibiting the following symptoms of accelerated ball joint degradation: •excessive vertical and lateral play: inspection reveals play in the right lower ball joint that exceeds the manufacturer’s maximum allowable wear specifications. The left lower ball joint is starting to have a small amount of play, according to the technician.

Failure of frame on left side of vehicle between frame rail and fuel tank. For a approx 10 year old vehicle that is garaged and does not drive in inclement weather this should not be happening.

See all problems of the 2013 GMC Sierra 1500 🔎.

Hard shifting transmission and fluid smells burnt, shifts hard in the lower gears and reverse.

See all problems of the 2014 GMC Sierra 1500 🔎.

I have 2017 GMC Sierra 1500 6. 2l engine I have maintain my service on this vehicle and now facing a complete engine failure due to the poor design of the engine by GMC. I have spoken with alot people and dealer mechnics and they all agree GMC and chvrolet know that this is a bad design but refuse to acept responsiblity for it. There are tousands of people with this same issue we cant fight this on our own we need your help please.

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The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 45 mph, the vehicle drove over a slight bump in the road. The contact stated that the vehicle bounced, and then there was an abnormal banging sound coming from the rear of the vehicle. The contact recently had work completed on the exhaust system. The contact took the vehicle back to the independent mechanic who had performed the exhaust repair. The mechanic raised the vehicle on the lift and became aware that the rear passenger’s and driver's side cross members, supports for the shock absorbers, and the rear sub frame had extensive corrosion. The contact was advised by the mechanic that the banging sound was coming from the shock absorbers striking the bed of the truck while driving over the bump in the roadway. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 78,569.

The mount for the rear shock absorber has completely rusted away on the driver side. The tube is gone now that it was attached to. This is a way to new of a truck for that kind of rust to happen I have been around 40 year old trucks that this never happened to.

See all problems of the 2015 GMC Sierra 1500 🔎.

The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving approximately 65 mph, the vehicle rolled over a bump in the highway, and the message to "slow down" was displayed on the instrument cluster. The contact heard an abnormal metal-on-metal sound coming from the vehicle. The contact had taken the vehicle to a local dealer who diagnosed the vehicle and determined that the supports for the differential and the rear axles had been improperly attached and had become loose. The contact had asked the dealer if the repair could be covered under warranty, and was advised that the repairs were not covered. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 48,000.

See all problems of the 2024 GMC Sierra 1500 🔎.

Within the first week of buying my 2014 GMC 1500 sierra, the transmission fluid was black in griddy. I have had it flushed, then filter changed and new fluid put in within 2 week time frame. A week later had to put a new transmission in it. It barely would drive. So a purchase at 2,999 then to a transmission 4,800 and new control arm with ball joint with new axels. They were busted. Another 2,000. Its sicking. Advice.

The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle started pulling to the left, and the vehicle ended up in the next lane. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. The contact stated that the vehicle had been taken to the dealer six times because of the failure. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 17,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle was veering to the right or to the left and was moving upwards and downwards. Additionally, the contact stated that the vehicle was veering excessively to the left or to the right while turning. The vehicle was taken to an independent mechanic, where the front brakes were replaced, and the contact was informed that the sway bar end links were fractured due to rust. The contact stated that upon inspecting underneath the vehicle, the lower parts of the links had detached, and one of the links was flapping. The contact purchased new parts from the dealer, and the mechanic replaced the links. Additionally, the contact stated that the vehicle was experiencing hard shifts while driving from a complete stop and while coming to a stop. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 67,000.

The contact owns a 2021 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, there was an abnormal clunking sound coming from the rear suspension. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the rear suspension. The vehicle was repaired, but the failure reoccurred 4,000 miles later. The contact stated that while reversing, the contact heard an abnormal clunking sound coming from the rear suspension. The contact also stated that there was also a strong antifreeze odor permeating the interior of the vehicle. The vehicle was taken back to the dealer, but not yet diagnose. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 38,000.

I purchased a 2025 GMC siera denali ultimate in December 2024. Approximately 2 weeks after purchasing the vehicle, I was driving down the road I received a message that said, "service suspension". I was able to call onstar for diagnostic and the truck was throwing code c2a0a. I took the truck into the dealership to see what the issue was. The dealership said that I apparently ran something over and it must have flown up and broke a plastic sensor cover on the lower rear left shock. I never hit anything but have no way to prove. So, I had to pay $526 for a new shock. Even if I did run over something if that area of the shock is that sensitive it should be better protected especially if it's not covered under warranty.

See all problems of the 2025 GMC Sierra 1500 🔎.

The contact owned a 2024 GMC sierra . The contact stated while his wife was driving at 50mph, the front passenger side tire detached from the vehicle and the passenger side was damaged. The air bags did not deploy. A police report was filed. His wife sustained injuries to the neck and shoulder which required medical attention. The vehicle was not diagnosed or repaired. The vehicle was towed from the scene and deemed total loss by the insurance company. The contact stated that the ball joint, hub bearing, and 4x4 drive shaft was damaged. The manufacturer was not notified of the failure. The approximate failure mileage was unknown.

Front upper control arm ball joint separated from socket.

Cross member holding file tank rusted through causing the fule tank to not be supported and shock mounts no longer support the shocks to frame causing shocks to bounce around with possibility to puncher fule tank or lines also rear cross member that holders electrical components rusts off excessive rust on top of fule tank causing a inability to make repairs without replacing fule tank in entirety.

Vehicle has approximately 45k miles, we were 2. 5 hours away from home on a paved highway driving 55mph and the front passenger side ball joint failed and upper control arm separated also instantly no brakes causing an accident . This is very dangerous and is going to kill people , we are lucky we didn't roll . I'm now afraid this will happen to the other side? chevy will not take the responsibility to fix it , our extended warranty only covered the upper control arm and not any of the other parts that had damage due to the ball joint . It was a 2. 5 hour tow as well . Also the tow truck driver said within a week this was the 4th chevy truck with the same issue 2 of them rolled . Side note , as I looked into this I haver found other of this same model vehicle to have the same problem , one that it happened at around 40k miles he fixed it then it happened again on the other side at around 50k miles on the same vehicle . There needs to be a recall , chevy has other models that have had this recall but no recall for my vehicle? links to related proof there is a big problem [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2022 GMC Sierra 1500 🔎.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while his wife was driving 25 mph, the vehicle made an abnormally loud sound and the front driver's side wheel detached. The vehicle came to a complete stop. The vehicle was towed to the dealer, where it was diagnosed that the upper control arm had disconnected from the steering wheel ball joint, and it was determined that the upper control joint, steering wheel column, and front driver's and passenger's side wheel needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle had received an alignment twenty days prior to the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

The contact owns a 2022 GMC Sierra 1500. The contact stated that while her husband was driving 80 mph, the vehicle skidded approximately 100 yards; however, there was no impact to the vehicle. The vehicle was towed to the dealer, where it was determined that the front driver's side upper control arm and ball joint had fractured, causing the front driver's side wheel to become wedged beneath the subframe. The vehicle was not repaired. The dealer advised the contact to contact the insurance company to have the vehicle inspected. The manufacturer was made aware of the failure. The failure mileage was approximately 40,000.

I hit a bump and both rear shock mounts blew off the rear cross member because the frame is rusted out despite having rust protection. It is available for inspection. The truck then began bouncing wildly. Meanwhile the underside of the bed isn't rusted at all, not one speck. It just seems weird to me, reminds me of the Toyota frame problems from a while back. It has not been inspected by a mechanic or insurance, my insurance company didn't seem to care in the slightest. I have had traction control and abs warnings on for a while but my mechanic said that was a faulty tire sensor.

I have a 2014 silverado high-country. The truck has approximately 110k miles. I was told by chevy the frame is rusted through and unsafe to work on. They know these trucks had problems with the rust coating and only put out a bulletin to have them recoated. The problem is rust is rust. Once the metal was exposed there is no going back. My truck would other wise last another 50-70k miles.

The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving 60 mph, the horn failed to function as intended. There were no warning lights illuminated. The contact stated that on a separate occasion, the right lane sensor stopped working as intended. There were no warning lights illuminated. The contact stated that on a separate occasion, while driving 60 mph in the rain or on rough asphalt, the rear suspension caused the vehicle to fishtail to the right. The contact turned to the left to control the vehicle. The contact stated that the vehicle returned to normal functionality after the failure. The low transmission fluid warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed the vehicle with an electrical systems failure. The independent mechanic informed the contact that there was adequate transmission fluid inside the transmission, and it was unclear why the warning light was illuminated. The contact was informed that weights were added to the wheels to balance each wheel. The vehicle was not yet repaired for the other failures. The contact stated that the transmission was replaced a year prior to the failure, and the horn had failed to function soon after the transmission replacement. The manufacturer was made aware of the failure. The failure mileage was approximately 68,000.

Electrical glitches happen at both, low speeds and while on the roadway. My steering wheel tightens up and I get a message on the dashboard “stabilitrak” and another one “assisted steering reduced, drive with care”. My vehicle even shut off on me after pulling in to a parking space after turning steering wheel completely to one side.

The contact owns a 2021 GMC Sierra 1500. The contact stated while driving 40 mph, the front driver's side wheel separated and fell underneath the front end of the vehicle, causing the vehicle to veer towards oncoming traffic. The contact was able to pull to the side of the road, where the vehicle was awaiting to be towed. The contact related the failure to NHTSA campaign number: 21v718000 (suspension); however, the VIN was not included. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 37,470.

I have a 2018 GMC Sierra 1500 that I bought new in oct of 2018 and it now has 15,756 miles on it and was still like new at the time of failure. On may 23rd I was driving the truck when the driver suspension suddenly had an structural failure (mostly the ball joint coming out of the control arm) causing the front right side of the suspension to collapse while driving. This caused the truck to go left of center into on coming traffic resulting in a traffic accident.

The frame is completely rusting out. There needs to be something done about this please.

See all problems of the 2007 GMC Sierra 1500 🔎.

Purchased 2024 GMC Sierra 1500 pro 2/28/2024 with 6 miles on it. Drove vehicle home (20 miles). Picked up and dropped off grand daughter from school. Proceeded to my mom's house and took her for a ride then came home. Next afternoon went to take out garbage and noticed puddle by passenger rear tire. Got under truck and found shock to be completely wet. Called dealer and made appointment to bring truck in next morning. Brought truck in next day and dealer confirmed that shock was blown. Shock is not in stock but was ordered. Currently waiting for delivery to set up appointment to replace shock (only the one that is blown of course). Truck now has 108 miles. 60 of those miles are driving from, back to and back home from the dealer. Now it sits with cardboard under it and once repaired, I have the bonus of scrubbing multiple oil slicks off of my driveway. Glad I wasn't towing or carrying a payload. . .

See attached document for complaint.

Rear half of frame crossmembers rotted away between the frame rails. Took vehicle in for routine safety inspection, and the mechanic determined that the cross members to which the rear shocks and the gas tank were attached had both broken free from the frame rails due to rust. The entire back end of the vehicle is suspended from the frame with only the leaf spring mounts. This rust is excessive and far exceeds the rust on other points on the frame and undercarriage of the vehicle.

I went to get the vehicle inspected today and was told it failed due to the chassis frame in the rear being rusted thru. This could cause the suspension to collapse any time. I see on the internet that multiple others have and are experiencing the same with the sierra and silverado. My vehicle has unlimited washes and has been washed 40 times a year and looks new from the outside.

See all problems of the 2012 GMC Sierra 1500 🔎.

In November 2023, my lifters collapsed and I had multiple bent pushrods on my vehicle due to the active fuel management system, leading me to become stalled in my vehicle on the middle of the road with no way of getting off the roadway safely. I have had multiple issues with this vehicle, and know many other who have as well. I had been compliant with all routine and preventative maintenance to this point, and I know that this will lead to injuries or fatalities due to these issues that gm is aware of, yet will not do anything to rectify the situation.

The vehicle steering wheel shudders at speeds from 40-55mph. The steering wheel shudders at 2-second intervals and is constant between those speeds. At first, I thought it might be one of the safety systems. It is not. This is unsafe and gm should be held responsible.