The contact owns a 2011 Nissan Frontier. While starting the vehicle, it accelerated without warning. The brake pedal was applied, but it was hard and failed to respond. As a result, the vehicle crashed into a fence. There were no injuries and a police report was not filed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure via email. No assistance was provided. The VIN was unknown. The failure mileage was 150,000.

- Miami, FL, USA

I was driving my truck as normal when I heard a chatter from the gear shift.. I lost all power in the low gears and it would take 45 seconds to get to 60 mph. I drove it a short way like that and the check engine light came on. I parked my truck for a few hours an when I went to drive it back home the problem seemed to be fixed and was driving normal. I started my drive home and after 50 miles I could smell something burning so I started to get over to the side of the road. At that point I lost all power and the truck was dead. It would not start and I had to call for a tow truck to get my family and I home. I was watching the temperature and oil pressure gauges on the dash and they were normal so it was a surprise to me when I took it to the mechanic and he told me the problem happened because the lower part of the radiator that cools the transmission cracked leaking radiator fluid into the transmission. This caused all the parts to swell up causing the computer to burn up, sensors to fail. I spent over $4000 on parts and labor to get this fixed. That included a rebuild kit, band, piston, exchange rebuilt torque converter, new valve assembly, radiator, radiator cap, front pump bushing, crank sensor, revolution sensor, and all the labor. There were known issues of this exact problem and earlier models up to 2010. There was a class action lawsuit about it. Well the problem is still there on the 2011 model. I should be reimbursed for all my cost since Nissan knew about this issue and still made a inferior product the following year. They did nothing to address this engineering flaw even though they had complete knowledge of the problem. This could of been avoided by having a separate transmission cooler. Nissan was negligent for letting this design go to market when they already knew it was an issue. It should of been resolved on the 2011 but it wasn't,

- San Marcos, CA, USA

10/2010 ordered a 2011 Nissan Frontier pro-4X ; delivered 11/26/10, 9 miles. Personal commuting and recreation; not commercial duty! only pulled pop-up camper & utility trailers a few times, often smell clutch "burn" after backing up (especially slightly inclined driveway: Both max 2K lbs): Truck is rated for towing 6K lbs: So limits never exceeded. About 18 months & 14K miles the clutch started slipping when going 65 mph on highway in cruise control, slippage causing cruise control to fall off suddenly. Nissan dealer service manager accused me of drag racing, causing excessive wear and the premature failure! unbelievable! he gave me the benefit of the doubt, & in first 3 yr/36K full warranty so fixed it free: Normally a $1,500 bill. Just passed 33K miles and 3 1/2 years original ownership (8/2014): When I operate/let the clutch out roughness felt in the mechanism; engine rpms rev higher than normal during gear changes; trying to accelerate engine rpms rev higher than normal (up to 1K) and vehicle lacks speed increase response; cruise control drops off at 30, 40, 50 and 65 mph within 30 seconds! smell clutch burn in city traffic. Past 3 year warranty; still within 5 year drive train warranty period; so going to take it to a dealer again and see what they say about it. I have 30+ years of driving manual shift vehicles; drive very conservative and smooth; and commercial driver licensed. Seriously disappointed about this Nissan Frontier's clutch situation! two clutches failed within 36K miles and less than 4 yrs off the assembly line; performing normal driving duties! others too. Also see??: www.carcomplaints.com/Nissan/Frontier/2010/clutch/premature_clutch_failure.shtml this premature clutch failure issue is ridiculous; no wonder dealer(s) did not believe me and others! this could also be a hazard if fails in traffic!

- Liverpool, NY, USA

The contact owns a 2011 Nissan Frontier. While driving approximately 45 mph, the engine rpms increased and the vehicle suddenly accelerated independently to approximately 80 mph. The contact depressed the brake pedal but the vehicle would not respond. The contact shifted into neutral and continued to apply excessive pressure to the brake pedal in order to stop the vehicle. The contact was eventually able to stop the vehicle on the shoulder of the road. The failure recurred intermittently. The vehicle was taken to the dealer twice for diagnostic testing. The technicians were unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 20,000.

- Ontario, CA, USA