CHEVROLET Complaints

The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving at undisclosed speeds, the vehicle started shaking abnormally. No warning lights were illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 60,000.

The failure is believed to have originated in the fuel delivery system, specifically the check valve in the low-pressure fuel feed jumper line at the engine. This valve failed to seat properly, allowing high-pressure pulses to travel back into the low-pressure side of the system. This malfunction caused the S-shaped portion of the fuel feed line near the tank to vibrate excessively against its mounting clip. This constant friction wore through the line, resulting in an active fuel leak. All damaged components remain on the vehicle and are available for inspection upon request. The safety of the driver, passengers, and the public is at immediate risk due to a severe fire hazard. Because the leak is located near the fuel tank and undercarriage, gasoline is being released where it could be ignited by road sparks, static electricity, or exhaust heat. A fuel leak of this nature threatens a catastrophic fire that could result in vehicle loss or personal injury. The problem has been confirmed via a physical inspection that matches the symptoms documented in a GM Service Bulletin (Recall - High Pressure Fuel Pump Leakage). While the vehicle has not yet been subjected to a formal tear-down by a dealer due to the danger of driving it with a leak, the visual evidence at the exact location specified in manufacturer documentation confirms the failure. To date, the vehicle has not been inspected by the manufacturer, police, or insurance representatives. Prior to the leak, the primary symptoms were an audible rattling and ticking noise from the engine bay and underside, characteristic of the pressure pulses described in the TSB. There were no warning lamps or dashboard messages, as the mechanical wear on the exterior of the fuel line occurred outside the scope of the vehicle’s onboard diagnostic sensors.

The contact owns a 2022 Chevrolet Trailblazer. The contact stated that the vehicle failed to shift into park(P) as needed. The contact attempted to turn off the vehicle, and the message "Shift to Park(P)” was displayed. The contact jiggled the gear shift lever and the vehicle shifted to park(P and then turned off. The contact stated that the failure was intermittent, but was a recurring failure. The vehicle was taken to a local dealer to be diagnosed, and it was determined that the shift lever assembly needed to be replaced. The vehicle was repaired. The contact researched online and stated that it was a known failure. The manufacturer was informed of the failure and opened a case. The failure mileage was 47,304.

On 03/13/26, I was taking a family trip when all of a sudden my 2021 chevy silverado (with 6.2L v8) began to lose power and shake uncontrollably causing me to make an emergency roadside stop. Fortunately, traffic was light and I was able to avoid a collision. I immediately heard a loud knocking sound coming from my engine and several check engine safety lights were displayed. On 3/16, I brought my truck to a local GM dealership and was advised that I needed a complete new engine replacement due to catastrophic engine failure because my rods and crankshaft had blown in my engine. The dealership checked for recalls on my truck but were surprised that my vin did not pull up a recall even though there was a recent major engine recall (# N252494000) issued for my exact model truck with the same issues my truck displayed. It should be noted that my vehicle had less than 24,000 miles on it and I have kept up with regular oil change and maintenance service and that before this issue I have had zero issues with this vehicle. To make matters worse my powertrain warranty expired 2 months prior to this incident so I am having to pay out of pocket over $12k for a new engine. On 03/19/26, I contacted Chevy but was told there was nothing they could do for me and stated that NHTSA would have to get my vehicle added to the recall. I am requesting that my vehicle and others like it get added to this massive engine recall so I can get reimbursed for my new engine and also to protect other families from possibly being involved in a major unavoidable crash. Thanks in advance for your help!

Purchased brand new 2025 reedman toll chevy Springfield pa. Been on going issues with tires been rebalanced 5 times . Shakes when driving. On highway. Been 3 chevy certified dealers still cannot figure whats going on. GM is not helping with this matter at all.

The transmission malfunctioned 4 times in the first 3 weeks of ownership. Once on the way home from the dealer, but I could not return as they were closing when I picked up my new 2026 Silverado 2500HD pick up. It has 2 issues so far since that ride home, 2 times, on separate occasions, I was approaching a red light and slowing down when the light changed while I was in a slow speed, so I accelerated to get to the speed limit, while doing so, the truck hesitated for a couple of seconds then banged into gear. The second time for that same scenario was several days after resulting in the same hesitation and then bang into gear. No warning lights were reveled. I called the local Chevy dealership, as instructed by the dealership I purchased it from was 107 miles away, they gave me an appointment to investigate the problem. Upon arriving, I needed to back up to align my vehicle with the entrance to the service area and my truck would not go into reverse. I tried 2 times shifting from park to reverse and nothing, I put it back into park while still running and went into the service area explaining my new issue, the service writer got a mechanic and he tried shifting into park with no luck. He then shut off the engine, waited about 30 seconds, restarted the engine and shifted into reverse and it worked. They checked for codes and none were present, so they test drove it for about 20 minutes, did not experience either symptom and email GM service assistance and were told to have me come back and they would check the parameters and make sure the software was updated as well as the transmission fluid level and condition. I returned for them to accomplish those tasks and drove home, 2 miles, and had no issues till the trip I was going on today, I warmed up the vehicle as it was only 37 degrees today and when I put it in reverse, it did not engage, so I shifted into drive, it engaged then I put it in reverse and it did finally engage. Now I'm going to renotify the dealership

The vehicle is currently exhibiting a loud, rhythmic metallic ticking/tapping noise from the top of the engine. This is a known precursor to a sudden, catastrophic loss of motive power as documented in GM Service Bulletins PIP5847A and PIP6101. The cause is attributed to manufacturing debris within the hydraulic valve lash adjusters, which prevents proper lubrication and causes valvetrain desynchronization. This defect leads to severe engine misfires (DTC P0300), "Reduced Engine Power" mode, and potential engine seizure. ?1. Component/System: The 2.7L L3B Engine Valvetrain / Hydraulic Lash Adjusters. The vehicle is available for inspection. ?2. Safety Risk: The audible ticking indicates imminent mechanical failure. This defect causes sudden and unexpected loss of motive power at highway speeds. Driving in this condition puts me at extreme risk of being stranded in active traffic or losing power while merging/passing, creating an immediate risk of high-speed rear-end collisions. GM is aware of this debris-related defect via TSBs but has not issued a safety recall to prevent the resulting power loss. ?3. Dealer Confirmation: Yes, confirmed by Chevrolet dealer on 3/18/26. The dealer knows about this particular issue, and decided not to act. ?4. Inspection History: Inspected by authorized Chevrolet service technician. ?5. Warning Symptoms: Loud metallic ticking/clacking that increases with engine RPM. This is a known precursor to a sudden, catastrophic loss of motive power as documented in GM Service Bulletins PIP5847A and PIP6101.

I was driving down I-5 at 75mph and the truck shut off while driving. Couldn’t get to start. Paid over $1k for a new battery cause dealership couldn’t replicate problem. Next day doing 75mph on freeway engine through a rod.

The transmission just stopped working no warning just wouldn’t go into gear. Then I turned it off and back on and was able to limp home it’s slipping bad .

I was driving and without any type of warning the car stopped shifting so I was barely touching the gas but my tac was all the way up.