2015 CHEVROLET TAHOE Complaints

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.

Either the transmission or torque converter went out, one or both completely failed.

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving at various speeds and attempting to depress the brake pedal, the vehicle failed to slow down or stop as intended. No warning light was illuminated. The vehicle was taken to a local independent mechanic, where it was diagnosed with vacuum pump and brake booster failure. The vehicle was later towed to a local dealer, where it was diagnosed with brake booster failure. The vehicle was not repaired. In addition, the contact related the failure to NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic); however, the warranty had expired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 135,436.

My transmission just randomly went out. I had my car evaluated in December of 2025 and nothing was reported on the transmission at all and as Jan 2026 my transmission went out.

The brakes have stopped working properly. I have to use my entire force and press the brakes so hard to stop.

The vehicle information system, Radio, Maps, Phone goes uncontrolled, Changes volume, radio station changes randomly and sometimes won't allow the driver to even turn off the radio; makes calls from phone contacts while driving randomly and there's NO WAY to hang up! Unable to change time on screen, plus other random electronic actions. This distracts the driver in numerous ways, diverting attention from driving while trying to manage the issue; unable to hang-up a random phone call while driving.

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.

Steering wheel locked driving hazard lights on dashboard on power steering light on stranded on road with my kids took it to riverside chevrolet almost 2 months in dealership 2 technician could not give me a diagnostic on the truck they could not repair the vehicle vehicle not drivable

The contact owns a 2015 Chevrolet Tahoe. The contact stated that while driving 65 MPH, the vehicle hesitated and the temperature gauge failed to function as needed, with an abnormally loud sound coming from the cooling fans. The check engine warning light illuminated, and a message about the battery was displayed, and a warning light about the battery was illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the thermostat housing had failed and the wiring to the fan had failed. The vehicle was repaired. Several days later, the contact stated that on a separate occasion, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was taken back to the independent mechanic, where it was diagnosed and determined that the catalytic converter had failed. The vehicle was repaired; however, the same day the vehicle was picked up from the independent mechanic, the check engine warning light illuminated. The vehicle was taken back to the independent mechanic, who diagnosed that the timing chain had failed. The vehicle remained at the dealer unrepaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 165,880.

I recently purchased this vehicle about five months ago. I took it to Riverside Chevrolet to get a diagnostic on it because my steering wheel is locked all the lights on the dashboard are on in the vehicle is not drivable almost a month and a half of Riverside Chevrolet and they could not get a diagnostic on it. Apparently the technicians there were not able to figure out what’s wrong with it. The vehicle is not drivable and it is a safety hazard