Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Chevrolet Tahoe owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Chevrolet Tahoe. The contact was attempting to start the vehicle, but the vehicle intermittently stalled, and the contact smelled and abnormal fuel odor inside the vehicle. The contact stated no warning light was illuminated. The contact exited the vehicle and noticed a puddle of fuel underneath the fuel tank. The contact towed the vehicle to a used dealer, where it was diagnosed with needing the fuel tank to be replaced. The vehicle was not repaired. The contact towed the vehicle to the independent mechanic and had the fuel tank was replaced. The vehicle was repaired but continued to experience the failure. The contact took the vehicle back to the independent mechanic, where it was diagnosed with needing the fuel lines to be replaced. The vehicle was repaired but continued to experience the failure. …
The contact owns a 2015 Chevrolet Tahoe. The contact stated that she would smell the odor of gasoline when she approached the vehicle. The contact stated there was a stain on her driveway that was gasoline. Most recently, the contact saw that fuel was dripping from the fuel tank. Also, the contact stated that the vehicle had become more difficult to start in the morning, sometimes taking over four attempts. No warning light was illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer had been informed of the failure. The contact had researched online and related the failure to the manufacturer Technical Service Bulletin Number: 17-NA-304 Possible Fuel Leak (Fuel System, Gasoline). The failure mileage was approximately 120,000.
The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, there was an abnormally strong odor inside the vehicle. The contact stopped the vehicle to complete an inspection of the vehicle. The contact became aware that there was a large fuel leak on the ground. The contact stated that when the vehicle was turned off the fuel leak stopped. The contact stated that fuel only leaked out when the vehicle was running. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The contact researched and discovered TSB: 17-NA-304; however, the contact was informed that the repair could not be covered under the TSB. The failure mileage was approximately 220,000.
The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, and the vehicle shuddered. The vehicle was taken to a dealer where it was diagnosed with a high-pressure fuel pump leak. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 19V837000 (Fuel System, Gasoline) however, the model year was not included in the recall. The dealer confirmed that the vehicle was not included in the recall. The manufacturer was made aware of the failure and also confirmed that the vehicle was not included in the recall. The failure mileage was approximately 65,000.
The contact owns a 2015 Chevrolet Tahoe. The contact stated that after refueling the vehicle, an abnormally strong fuel odor was detected. The following day, while starting the vehicle, the strong fuel odor was detected again. Additionally, the contact noticed fuel leaking from the fuel line onto the ground when the vehicle was parked. The vehicle was taken to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 182,000.
Fuel supply line coming out of gas tank is leaking. Looked up on internet and found this to be a very common occurrence, with several pictures of Tahoe's sitting on the side of the road on fire. This is such a common issue on 2015 models that GM should recall and fix. We can't wait for a recall, I know that takes a lot of time. The Tahoe is my wife's ability to get to work and home, as she is the breadwinner in our family, I am on SSDI for total disability. We need someone or some organization to step up and assist us in getting this problem fixed and since it is a design flaw resulting in a serious safety issue, GM should be held responsible for the repair. …
started to notice a fuel smell/odor, which after several days 3 to 4 got worse, then my tahoe started having problems starting, i then seen fuel leaking from the driver's side behind driver's door and below driver's side passenger door, which is where my granddaughter's car seat is located, i inspected where the leak appeared to be coming from, i could tell it was coming from on top of the fuel tank running down the side of the tank leaving a puddle of fuel, the repair shop said they believe the leak is coming from the fuel line and would pull the fuel tank down and replace the fuel line which is going to be a expensive repair. this is a serious safety hazard and should be covered by general motors corporation, i am concerned that my tahoe could have caught on fire while driving without no warning indicator light. i will keep invoices from repair shop and the faulty factory fuel line. …
Vehicle cranked longer than usual, noticed slight smell of fuel. After arriving home noticed fuel smell was very strong and a puddle of raw fuel under vehicle. Fuel line appears to have rubbed/vibrated against the frame of the vehicle causing the line to rupture. Date of incident 12-26-2025. No MIL or warning messages were present. The vehicle has not been inspected by anyone other than myself for this incident. I feel this issue could have resulted in serious injury or death of my entire family and possibly others on the road. The vehicle has not been modified in anyway and is in OEM configuration. We will have to have the vehicle repaired but will document as best we can. I would like to add that after a quick internet search I found this to be a common issue so I was amazed there was no recall on our Tahoe. Thank you.
Noticed a strong gas odor when exiting the vehicle. Upon looking the at the vehicle from top to bottom I discovered that there was gas dripping from the gas tank. Took the vehicle to the dealer, and was told that a fuel line on top of the tank was cracked and needed to be replaced. Since this seemed like a pretty serious safety issue I did some online research hoping to discover a recall, but didn't find any open ones. What I did find was a lot of people saying that this same issue had happened to them, and is a result of a design flaw where the fuel line on top of the tank is too close the the chassis and over time vibrations wear a hole into the line. Since this is such a serious safety issue I feel that that it should be taken care of by the manufacturer.
The high pressure fuel line from the fuel pump to engine sustained a pinhole leak over the fuel tank. Fuel leaked over top of tank and ran down front drivers side front of tank. Discovered the leak after noticing strong fuel odor inside vehicle. Took to shop. The fuel line is installed as so it will rub undercarriage of vehicle. This is what happened to mine. This is a factory install and the lines are doomed to fail because of this. The excessive contact rubs holes into the lines. This seems to be a common problem with the 2015, according to my research. There are hundreds of these same complaints with this year listed all over repair sites on the internet. I believe this needs looked into, as flammable fuel leaking suddenly can be a hazard.
Fuel System complaints in other Tahoe years
Frequently asked questions
How common are fuel system problems on the 2015 Chevrolet Tahoe?
NHTSA has 59 complaints about the fuel & propulsion system of the 2015 Chevrolet Tahoe, 9% of the model year's 659 complaints. The component named most often is delivery › hoses, lines/piping, and fittings (1 mentions).
Is there a recall for 2015 Chevrolet Tahoe fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2015 Chevrolet Tahoe, though it has 14 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2015 Chevrolet Tahoe fuel system problems start?
Half of the complaints with a recorded mileage happened before about 100,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.