Mercury Mountaineer adaptive cruise problems

Filed May 4, 2023 · Engine · PA

If you set cruise control while driving under 45 mph the engine shuts off.

Filed Nov 8, 2018 · Acceleration · 136,200 miles · CT

I purchased a used 2005 mercury mountaineer last month, with 135,400 miles, while using cruise control and traveling approximately 35 MPH, the road went from level to a very slight downgrade. The car then just shut off after audible warning bell was heard. Noticed dashboard lights were all lit and battery gage was normal. I lost power steering, brakes and oil pressure. After pulling safely to the side of the road, I rested for 30 seconds before restarting the car, which subsequently operated normally. After taking it in for an oil change and safety check, I went on a 450 mile weekend trip and had no issues, restricting cruise control to highway speeds. The other day, I was traveling on a different stretch of level road in my town while using cruise control at approx. 35 MPH. After heading into a slight downgrade, I again heard the warning bell, followed by engine shut off. A "check gage" light came on and I lost power steering, oil pressure and brakes. This time, I gently shifted the car into neutral, and while coasting at 15-20 MPH I turned the ignition off before restarting without issue. The car has subsequently operated normally, but I have not engaged the cruise control at any speed.

Filed Nov 19, 2017 · Acceleration · 190,000 miles · TX · fire

Under my hood started smoking, I popped my hood to find flames under it. I had to get my kids out the truck and put the flames out with and extinguisher. That's when I noticed that my brake fluid reservoir was melted and so were the wires that connect to the cruise control switch. Not I am without a vehicle to get to work and get my children to school.

Filed Sep 8, 2016 · Acceleration, Electrical · GA

When I use the cruise control and then turn it off I can't seem to push my gas pedal when you are driving the vehicle. I have to keep putting extreme pressure on the accelerator pedal until something breaks or pops and then it allows me to push the pedal. I keep having problems with smoke coming from on top of the steering column like something is burning when you are driving, now I have electrical problems to where my horn will not work anymore. I keep having problems with the front frame of the SUV. The frame sounds and feels like it is going to fall apart and it doesn't matter if you are driving or stationary. The mechanic says it is the sway bar that is causing that problem. I have been calling ford about it and they keep saying there is no recall on my vehicle.

Filed Mar 16, 2016 · Acceleration · 153,000 miles · AR

I was on my way home from work(approx 12 miles) and decided I'd try out the cruise control in my newly acquired 2000 mountaineer 302 awd. The first part of the commute is what I would consider harmless and a very safe stretch to test out this feature so I press the cruise button to set my speed at the posted speed limit of 55mph. All was well until I approached a sharp hair pin curve about 4 miles into the trip. I gently started to apply the brake to cancel the cruise but the vehicle didn't respond to my attempt. In a state of panic, I firmly apply the brake to reduce speed and was only able to drop approximately 6-7 MPH. Still well above the advised limit for that particular curve. After making it though the curve, the mountaineer transmission down shifted and I was off to the races. I panicked and in doing so, failed to process and think clearly. My instinct was to keep pounding on the brakes in hope that the cruise cable with break or pop free. At 70mph my brakes were useless. It accelerated just past 80mph and finally right before my turn off onto the road that I live, my head cleared and I turned the ignition key to the off position and was able to coast into my neighborhood. As I exited the vehicle, every ounce of coolant was being shot out of the radiator and all four brake rotors were glowing cherry red. I was scared the thing was going to catch fire. Like incident report prior to mine, my cruise cable retainer had malfunctioned and was no longer anchored to its usual position. Ford has a major flaw in the way this system was designed and needs to take action so someone doesn't get killed. Hands down, the absolute scariest situation I've ever experienced.

Filed Jan 5, 2016 · Electrical · 135,000 miles · TN

While my 17 year old daughter was driving with the cruise control on in a 30 -40 MPH zone, several lights came on, the power steering went out, and the vehicle stalled. She was on a small 2 lane road, and there were no warnings prior to the occurrence. She was very scared, she turned on the hazard lights and called me immediately. The vehicle then restarted and she drove home. Today (jan. 5, 2016) the problem occurred again, fortunately in a slow speed zone again. She was able to restart the vehicle and continue driving. This problem is potentially very dangerous and needs to be addressed by the manufacturer, or they need to offer a buy back at full value for placing people at risk.

Filed Apr 2, 2015 · Acceleration · 133,000 miles · WI

I had the cruise control set on 30 MPH driving in a residential area. Without warning, all the lights on my dash flashed, and my vehicle lost all power. Very scary. No more power steering, no power brakes, while coasting through a neighborhood. I put the car in neutral, turned the key off, back on again, and put the car back in drive. That fixed the problem. This is very scary and dangerous!! This is the third time it has happened to me. I am afraid to use the cruise control on my car now :(

Filed Feb 16, 2015 · Body · 130,000 miles · CA

Transmission jerks . Have that crack in middle lift gate around emblem like I see everybody has . Lift gate window bolts rusted and one broke in half on the driver side back lift gate at top back window it cracked in half didn't know that when I noticed my warning light saying hatch was open I didn't noticed anything went too open and try to shut it and when I lifted open the door the glass fell out and bent the hinge that supports the whole rear glass I grabbed glass held it till others came to help me in parking lot glass was heavy im tiny petite girl so thank goodness for people who came to help me at store it was just hanging there and the other side was just as bad just didn't break in half at that point yet thank goodness or I think the whole thing would have fell to ground and shattered .very expensive to fix at a dealer so my husband order parts at store and online for a lot less and fixed it himself so that's all fixed now. . Right after that we noticed same kind of car as our with same problem only they had it all duct tape and stuff to keep it together (probably because they found out how expensive it is to fix) I didn't think that was safe at all either. My cruise control stopped working had it replaced during warranty. My air conditioner sucks . Just last week the newest thing is my trunk lock wont open no matter what I do . I can only open the lift gate window that's it. But the whole back door wont lift open. Lock wont budge to open don't know why?

Filed Aug 17, 2014 · Acceleration, Engine · 99,000 miles · TN

Using cruise control going down a slight grade the engine died. This has happened multiple times in the last few months, so now I know to put the vehicle in netural while still moving and re-start the engine, then pull back down into drive. This isn't easy to do, so be careful not to put in reverse or park while trying to re-start the engine.

Filed Aug 5, 2014 · Body, Tires · NY

**I first noticed my tire pressure light came on upon purchasing my vehicle. The dealer said that the air may have been low and could fluctuate with the weight in the vehicle. He filled the tire that appeared to have been low and it turned off momentarily. A few days later it happened again and I would add air which alleviated again in the same tire, but for a few hours later it came on again which I found out ended up being an issue with all 4 of the tires. After several attempts of filling and refilling over a period of time and using "a filler" (can of air for flat tires) is when I knew then all 4 tires are defective. The air pressure goes on and off and has now stayed on! I am lucky if it turns off at all now! The tires are firestone destination a/t tires. **also the passenger side back panel (where the gas fill-tank hole panel is) was manufactured in properly as it is severely rusting, bubbling paint, and chipping away only but in this one spot. The rust size is the only spot on the vehicle in which is about the size of the palm of my hand. **I also have an outstanding complaint already with a very dangerous faulty cruise control on this vehicle which stales the vehicle and renders it uncontrollable while driving and in motion.