We were driving down a highway and went to get back to speed after passing through a speed zone. I noticed a decrease in power and looked at the information screen. The fail safe mode and the "wrench" icon was on. I pulled the car over and turned it off. I then turned it on and the car acted normal. It has happened twice since the first incident. My wife took it to the dealership and Ford cannot duplicate the problem and the issue does not throw a check engine code or leaves any type of electronic history of the issue. I cannot allow my wife to drive this car because she is seven month pregnant and cannot have her drive it if the car breaks down due to this issue.

- Bastrop, TX, USA

On hot summer days and only on hot summer days when stopped at light or stopped period car begins to surge forward while holding brake. Went asked Ford why is this happening they said they don't know. That I should get the throttle body and mass air flow sensor serviced if not done already. I guess it had to be done at 90K but I did not know. Well I did what they said, went home and car is now idling rough went back and they want to charge me another $90 dollars ontop of the $105 they have already charged me for the throttle and mafs. I have almost gotten in numerous accidents because of this but Ford doesn't want to acknowledge that this is a problem with this car.

- Colton, CA, USA

So here I am another victim of a faulty throttle body. Thanks Ford I love when my car takes off on me without notice, especially when you have kids in the car. How many of these do I have to read before action is taken. Does it take a death or serious accident. Cost me 718 dollars I expect a recall soon and my money back I will not quit until this is taken care of. It's sad when you go to a mechanic and they say "wow there is still not a recall on this". oh by the way it is such a common problem I diagnosed my own car issue in 5 minutes by using google and typing failsafe engine mode.

- Louisville, KY, USA

The contact owns a 2005 Ford Five hundred. The contact stated that the vehicle down shifted and lost engine power. The failure was experienced numerous times. The dealer reprogrammed the computer, but the failure was not corrected. The vehicle was taken back to the dealer for a diagnostic test, which located the failure at the transmission valve body. The transmission valve body was replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure and current mileages were 67,407.

- Angola, IN, USA

Vehicle shifts hard when hitting passing gear on highway like transmission is slipping or going out. Lose all power and car will buck back and forth. Also does it when transmission down shifts and then tries to upshift when accelerating and engine warm.

- St. Charles, MO, USA

Vehicle slipped out of drive into neutral while ascending hill. I had to pull over completely and stop, shift into low and slowly back into drive. The car behind me almost rear ended me as I had lost power with no warning. Car once warmed starts to buck violently while driving at an even speed, bucks violently when coming to a stop and randomly slips out of gear with no warning. I have had this car since 2009 and have pot less then 20000 miles on it. The dealer tells me the computer does not read any problems.

- Conway, NH, USA

I have an ongoing issue with the transmission de-engaging when the temperature of the transmission warms up. When I accelerate when passing or using the cruise control the transmission will dis-engage leaving me with no forward power, I must put the car in neutral and hope it engages all the while almost being run over by two semi-trucks. This happened almost a dozen times down and back on my trip from buffalo to peapack NJ on Monday 4/16/2012. This is a know problem that Ford is aware on the Five hundred model, montego and some Fusion models. Many start to fail at less than 30,000 miles and happened at 65,000 miles on my vehicle. I consider this an extremely dangerous situation and amazed no one has been killed due to these defective transmissions. The Ford forum has over 10 pages of complaints regarding this problem. Ford told me they would not do anything unless there was a recall.

- Clarence Center , NY, USA

The contact owns a 2005 Ford Five hundred. The contact stated that while driving 35 mph, the vehicle stalled while depressing the accelerator pedal. All of the lights on the instrument panel failed and the reverse lights illuminated erroneously. The vehicle was taken to an authorized dealer where they advised the contact that the PCM module failed and needed to be replaced. The vehicle was not repaired. The failure mileage was 80,000 and the current mileage was 125,000.

- Ruicoso, NM, USA

While stopped at a red light, the car started to jerk and the motor raced/idled up high.

- Jackson, MS, USA

We bought my car in July 2011, its was garaged by the 1st owner so it was like brand new!! low miles just 12,850, start what now seems to be the endless drives in a rental car and with empty wallets totaling now approx; close to an additional $3,500 now in repairs from the battery in Aug 2011 to now to having the throttle being replace along with a set if tires and the 2nd set of both rear and front brakes in less then a year, all due to the consent stopping and going of the car by hitting the brakes too much and having to accelerate, because the car would while tempting to pull out of my garage at what should of been a mere 3miles per hour; resulted in flying backwards suddenly while foot was applying pressure on the brakes to keep from mowing down my teenage son at 15 miles a hour on its own with the mp rising rapidly, was the scare of my life!!!! please someone recall this car, before someone really does get killed or hurt!!! as of today the total this time to repair my car is at a total if$ 1,585.00; to replace the throttle and tires & brakes again, and Ford wouldn't even comp, us a rental car this time on our 5 trip down to the service dept of Ford!!!!

- Aliso Viejo, CA, USA

Driving from sj to la, calif. 200 miles into my journey with wife and 3 kids, pulled off highway for gas. Slowed down and noticed the wrench and check engine lights on and car would only go 10 to 15 miles per hour and revved at more than 3000 rpms. The car clunked hard when put into drive or reverse. Turned off the engine, several times and restarted. Sometimes fixed problem, other times did not. I had car towed to hanford, California, and then again to los angeles-another 198 miles to Ford dealership. I had to rent a car and drive the rest of the way to la and drive back - 198 miles-to hanford-to return the rental car. I tested the car a few times in hanford and when it was at the Ford dealer. From a cold start, the car worked fine. Drove and shifted well with no problems. But once the car warmed up, it went back into limp-mode, clunked hard when you shifted into drive or reverse, and would go only 10-15 mph at 3000 or more rpms. The dealer test drove it and had the same result. The dealer got codes P0701, P0871, and P0961 and said that meant the transmission had internal problems. They said they called Ford engineers who told them the likely problem was when the transmission fluid warms up, it is not properly circulating due to leaks in what they called two variators inside the transmission. They quoted the cost to replace the variators as $3600 for parts and labor of $1200 for a total of $4800 and that is more than the cost to replace the transmission for which they quoted $4500. So they replaced the transmission. After starting, they found a broken transmission mount so they replaced that for another $250 (part only - no labor charge). I test drove the new transmission yesterday. The car no longer goes into limp mode and drives nicely except after it warms up it clunks hard into drive and reverse and wines in reverse gear. Not taking car till fixed properly.

- Los Angeles, CA, USA

I purchased this 2005 Ford Five hundred as a gift for my wife,11/26/11 within a week after owning it the AWD malfunction light came on. In looking over the internet I'm finding other Ford owners are experiencing the same problem and that Ford does not want to do anything about it or take responsibility for a defective product that potentially could be very costly over and above the high cost of the vehicle itself. It seems the consumer should have ''some'' recourse or help with this recurring problem and make Ford own up and repair the defect and problems many of us are dealing with... out of pocket!!!

- Indpendence, KY, USA

Not long after purchasing my vehicle my husband and I were driving on the interstate with the cruise control on and the transmission stopped working. We were able to pull off safely onto the shoulder and shut the car off and once restarted was fine. We have since stopped using cruise control in fear of an accident. The problem is still there and seems to be getting worse. The dash will light check transmission, traction control and sometimes check engine. Once the car is turned off and back on it is fine for a while, the check engine light takes some time to go off. It is getting so we are afraid to drive it, sometimes it drives fine and others the transmission quits. The other day I went to pass a car and the lights came on as I had moved into the lane to pass on the interstate. Once I was in my lane again a few minutes later it does it again and this time a big mac truck is coming up on me. I have read of several problems of this with this same car and it has been said there is a problem with the throttle body and/or electrical system. This is very dangerous and Ford should be issuing a recall to fix the problem before someone is injured or killed.

- Masontown, WV, USA

2005 Ford Five hundred sel 3.0L V6 automatic 6 speed transmission accelerating on interstate car severely hard shifted and then rpms flared let off gas and car slammed into a lower gear now car hard shifts in down gears and rpms go up car doesn't move sometimes while accelerating very sporadic and dangerous.

- Harahan, LA, USA

Not sure the exact time but within the past year or so my 2005 Ford Five hundred ( purchased new) is going into failsafe mode limited throttle power, very sporadic at first but now happening quite often. If you pull over and shut the car off and restart it clears and drives normal. My daughter was driving it yesterday and it happened 7 times from mall to the house (about 20 miles). Once while she was in heavy traffic driving about 55 mph. Car jerked then started slowing down. This is a safety issue that needs to be looked at. Very dangerous. My mechanic is trouble shooting problem, looking like throttle body or gas pedal. I believe Ford came out with a new throttle body in 2010 to correct the problem (tsb 05-25-13)but will only replace it at their cost if still under warranty, otherwise the cost is on us the consumer. (about a thousand dollars).

- Semmes, AL, USA

The vehicle lunges while holding the brake when putting into reverse or drive and continues to do so while waiting to pull into traffic making it very dangerous! it also does this while trying to park making it dangerous to park near anything! I have seen several complaints regarding this very same problem stating it is a throttle body defect that costs at lowest $700 to repair. Front suspension is shot already with loud clunking noises, very rough ride! rear doors fill with water which will result in rust holes! all of these problems have been reported several times by other owners of this same year and make of vehicle. Ford should be responsible for the repairs needed to fix these problems.

- Warren, MI, USA

I have the wrench light up on the dash board and it said engine failsafe mode in the message centre? this started happening to me a few weeks ago from time to time. No warning, I just accelerate from a red light and I notice I have no power, I look down and sure enough - wrench is lit and engine failsafe mode. I pull over, turn the car off for a few minutes and then the problem is gone when I start again. I couldn't find any specific info on what is causing this around the 'net - and even the manual says, if it is persists, take it to the dealer. It happened a few more times, but this time it seemed the RPM's were revving without my foot on the accelerator. I had my foot on the brake so nothing happened, but did it a few times, so I brought it to the dealer last week. They ran some diagnostics and ultimately said they repaired a vacuum hose at my airbox. Ok, sure, whatever. Next two days, no problem. The third day, happened again. This time, I was going into an underground parking spot and it started revving and I ended up (very lightly) hitting the wall as it lurched forward. When I went to leave the spot - in reverse - happened again - almost hit the parked car behind, as it lurched. So took it to the dealer this morning - and the service advisor mentioned he suspects the throttlebody as he has had some other 500's in for the same thing. No idea why, but the computer didn't have a code for the throttlebody problem last time - but it did this time, so as I write this, they are putting the new one on and I'll be there in an hour to pick it up.

- Mt Morris, MI, USA

The vehicle in question was idling in park. Vehicle was shifted into reverse with the foot on the brake. Once foot was released from the brake the car lunged backward, the tachometer read about 3000 RPM, with no pressure on the gas pedal. Just as quickly pressure was applied to the brake and the car entered "engine failsafe mode" and shut down. Turning the vehicle off and restarting would clear the problem. This has happened 4 more times since the reported incident date, all with the same circumstances. The vehicle had the A/C on and was idling in approximately 90 degree Fahrenheit temperatures with +50% relative humidity.

- Woodridge, IL, USA

2005 Ford Five hundred. Vehicle accelerates without the gas pedal being depressed. Vehicle enters into failsafe mode. Occurrences are intermittent. Diagnostic checks show something other than the real culprit which is a faulty throttle body. Has not been repaired yet. Dealer is asking for $800.

- Bridgeport, WV, USA

The car started to accelerate by itself. And nearly plowed into the car in front of me. Then on the hwy has lose of power nearly rear-ended @60mph check engine light now w/wrench. Diagnosed code P2106 and P2135 throttle body. Occurs more when A/C is on. Had air flow sensor replaced, but problem still exist.

- Virginia Beach, VA, USA