2024 Chevrolet Tahoe: sudden loss of power

Filed Sep 23, 2026 · Engine · MO

Engine failure. Tahoe lost all power on the interstate going 70mph. Was able to get it to the side of the road and restart it. Engine started knocking and became undriveable.

Filed Sep 4, 2026 · Engine · OH

I experienced the issue being investigated with Investigation: EA26005 I lost engine power while driving my 2024 Chevy Tahoe. GM is now conducting a full engine replacement with another L87 engine.

Filed Nov 11, 2025 · Engine · FL

Purchased new vehicle in September 2024, immediately after purchasing the vehicle the engine had a clanking noise. Took the car back to the dealership where they explained the noise was normal. The car continue to make clanking noise, but noise continued to get louder, took the vehicle back to the dealership for first oil change, verify the noise, and discuss safety recall received on the vehicle. Dealer told me the car was ok to drive. In October 2025, the vehicle loss power during acceleration with immediate re-start. After this incident, took the vehicle to another dealer where they inspected the vehicle again. The test failed and the car now needs a new engine. Car has now 10K miles in the odometer and has been sitting in the dealership for 3 weeks now waiting for an engine replacement.

Filed Oct 29, 2025 · Airbags, Engine · NC

On October 23 I was driving my vehicle and the airbag light and a message service safety restraint appeared. On October 24 I was in route to take the vehicle to the dealership and as I was merging going to the highway the vehicle turned off, lost complete power threw itself into neutral. I had to drive it over to the shoulder to keep from getting hit. I was able to get the vehicle to turn back on and got it to the dealership. This would be the third time that the vehicle has lost power and completely turned off while driving the first time I took it to the dealership. They said they couldn’t find anything wrong. The second time this happened. I took it to the dealership. They said they replaced the gateway module this third time I took it to the dealership they have called me and said they need to replace the OnStar telecommunication module. The vehicle is unsafe. It is a brand new 2024 Tahoe I purchased it new. The vehicle should not be turning off while I’m driving The same messages consistently pop up the airbag in the service safety restraint. They replaced some kind of console at the top and say that that would fix the issue, but it didn’t because the message came back on again the vehicle idols as if it’s gonna turn off whenever I go to stop the vehicle The transmission stutters are like it’s going into a downshift and it acts like he wants to turn off, but it doesn’t it’s only turned off when I’m driving and then it will just shut off.

Filed May 14, 2025 · Engine · SC

Driving at highway speeds 70mph, the engine stopped running and vehicle lost all power during heavy rush hour traffic. I was in the middle lane and lost all power breaks and steering, the engine wouldn't restart and I had to force my way to the side of the road. The vehicle only has 21,709 miles and was purchased new less than a year ago. All scheduled maintenance has been performed. The engine is seized and will not restart. There were no warning signs.

Filed Jan 21, 2025 · Fuel system · TX

Fuel System Control Module went out abruptly and without warning resulting in the vehicle and occupant being stranded on highway. This was a brand new vehicle with only 320 miles on the odometer, and happened after only 6 days of ownership. The dangerous nature of above situation is self evident. Unexpected loss of power while in traffic is dangerous. Dealership replaced the module and confirmed it was the cause of the breakdown. No warning, no change in audible sound, or anything else prior to vehicle shutting down suddenly. The selling dealership replaced the module and confirmed

Filed Mar 11, 2024 · Electrical · FL

I was approaching an intersection to make a left turn from a two-way highway with a posted speed limit of 65mph. Another vehicle had approached the same intersection in the other direction and stopped to make a left turn, so both vehicles were making left turns in opposite directions, but the vehicle opposite my vehicle had to stop because I was approaching and signaling to turn and another vehicle, towing a trailer, was following behind my vehicle. As I approached the intersection, I began to turn the wheel and my vehicle shutdown and stopped in the lane, causing the vehicle behind me to take evasive action to avoid colliding into the rear of my vehicle. I received an alert on my dashboard to start the engine, which I did, but it didn't accelerate. I received another alert on the dash to start the engine and to place it in drive. After performing the actions, the vehicle felt as though it had lost power and I slowly drifted off the side of the road where I shut the vehicle off and restarted it again without further issues. The issue has not been reproduced and the dealership I purchased the vehicle from could not confirm any known issues. The vehicle has not been inspected due to the dealership not having any insight into any known issues that may have caused the incident. No other warning lights were displayed prior to the incident.