Truck shudders as transmission torque converter clutch attempts to lock up in third and fifth gear at light throttle position when shifting upward. This vehicle has the 2.7L engine with the auto stop/start feature. With this feature disabled the engine attempts to stall after stopping as if the feature is trying to override the off switch. After coming to a rolling stop and then trying to accelerate into traffic the engine will bog down and then a split second later feel as if it is going to full throttle without me depressing the throttle further. The engine speed surges when attempting to lightly accelerate and maintain speed with the flow of traffic. -Ford needs to give owners the option to turn off the auto stop/start permanently. I was not informed this feature could not be removed when I purchased this vehicle. The dealer attempted to shut it off and only succeeded in disabling the remote start feature. I will never buy another vehicle with the auto stop/start annoyance.

- Cottondale, AL, USA

New 2015 F150 with a vibration/ shudder coming from what feels like the transfer case or possibly the drive shaft. Happens when trying to shift from gear to gear, and on inclines...feels like it is going to stall. Also happens when just cruising at certain speeds. I've had it to the dealer twice and they say everything is fine but they have felt the same problem with this vehicle and ones on their lot. Vibration could lead to more serious problem and actually stall the vehicle while in traffic.

- Holmen, WI, USA

2015 Ford F-150. Consumer writes in regards to airbag problems, ignition problems and vehicle tires issues. The consumer stated the A/C blew out hot air, the transmission was jerky when he applied the brake, then the accelerator. When the vehicle was first started, there was a loud grinding/growling noise coming from underneath the vehicle by the driver front wheel, there was excessive cabin noise, and tire noise. The electric engine fan came on when the vehicle was sitting outside in the heat, the undercarriage was showing signs of corrosion. Water was leaking through the driver assist handle grip near the windshield.

- Huntsville, AL, USA

I have been having an ongoing issue with my transmission, where it shifts rough or does not shift appropriately. When the truck shifts rough, I barely have my foot on the accelerator, where it will slam into gear causing the truck to jolt. I also have been experiencing the truck failing to downshift out of 4th gear while going uphills. While going uphills, the rpms will go below 1000, where the truck will begin to shutter as if it is going to stall. You are forced to press the accelerator in order for it to shift, where the rpms/turbo booster will soar. I have had the truck at the dealership for this concern, where they performed a software update and it did not fix the issue. I feel the transmission shifting rough could cause an accident, if the engine in fact stalls and you lose control of the vehicle. I also feel being forced to accelerate could cause you to strike the vehicle in front of you or lose control it this occurs while negotiating a turn etc. The panoramic sunroof allows water to pass the rubber seal and drain into the water track. I frequently have had the windows fog up from moisture inside the passenger compartment and the odor of mold. If you google "2015 Ford F-150 sunroof leaks", you will find 1000's of concerned Ford owners on forums experiencing the same issues, where Ford states it is normal for the sunroof to leak past the seal. I feel the sunroof is a health concern, as I believe mold may be growing in the truck and is being breathed in. I have been experiencing the seat back getting extremely hot while using the "cooled seat" feature. I feel this could cause a burn or fire hazard.

- Palmyra, PA, USA

The contact owns a 2015 Ford F-150. The contact stated that while driving at various speeds, the vehicle hesitated to accelerate and abruptly switched gears as the vehicle surged forward without warning. The contact also mentioned that the vehicle stalled when the failure occurred. The failure recurred multiple times. The vehicle was taken to the dealer where it was diagnosed that the transmission needed to be reflashed. The vehicle was repaired but the failure recurred. The manufacturer was notified of the failure. The failure mileage was 500.

- Oswego, NY, USA

Vehicle transmission slams or bangs when shifting from 4 to 5 gear. It also hangs in 4th gear when at speed that is near the speed required to shift up from 4th or 5th gear.

- Springfield, MO, USA