2010 Mercury Mariner Hybrid electrical system problems

“Me and my wife purchased a vehicle from a private seller to use for personal commute. A month later we started to notice more issue were occurring with the car then stated from the seller. I took it to an auto body shop to get it inspected and possibly serviced and upon that inspection the clerk stated that there was a milage adjustment done to the vehicle. We contacted the seller to try and return the vehicle and receive our money back, but the dealer refused and requested us to resell it.”

“When the weather is hot (close to 100 degrees or more) and I am driving with the a/c - my vehicle on 3 occasions will not start after parking the vehicle and trying to restart it. The red padlock sign blinks and it won't start. At first it is trying to turnover but then will continually sound worse and all other warning lights go haywire. I leave the car alone for half a day and it starts up again like nothing happened. On the fourth occasion, the car stopped while driving, just a quiet shutdown and the car glided. This time it did not work for over 24 hours and then started up again like nothing happened. Multiple mechanics and also the dealership cannot figure out the problem because by the time i have it towed to shop, it works again. They did a full check on the car and cannot find anything wrong and there were no diagnostic codes. This issue happens when the weather is hot and poses a safety concern as now it is shutting off while driving and I become stranded each time. (First incident happened 8/25/18, last incident 5/14/22) Total of 4.”

“I WAS LEAVING WORK AND DRIVING DOWN THE HIGHWAY AND MY POWER STEERING WENT OUT BUT THEN IT CAME BACK AND IT KEPT DOING IT OFF AND ON . LUCKILY I ONLY LIVE 15 MILES FROM WORK. ITS HAPPEN BEFORE WHEN I WAS IN A TURN BUT I DIDN'T THINK MUCH ABOUT IT TILL IT STARTED DOING IT TODAY THANKFULLY TRAFFIC WAS LIGHT AND I DIDN'T HAVE A ACCIDENT”

“VEHICLE'S ELECTRONIC POWER STEERING TURNED OFF IN THE MIDDLE OF DRIVING, TURNING ON HIGHWAY, THIS HAS HAPPENED 3 TIMES, SEEMS LIKE WHEN THE HEAT IS ON. RECALL 14S05C SHOWS UP IN SERVICE RECORDS FROM THIS CAR. WORKS WAS DONE MY MAHOPAC FORD, MAHOPAC, NY. REFLASH IC AND PSCM. THIS RECALL WAS APPARENTLY ADDRESSED, BUT THE PROBLEM HAS COME BACK. I JUST BOUGHT THIS CAR USED TWO WEEKS AGO. IT DID NOT HAVE THIS PROBLEM UNTIL I TURNED THE HEAT ON. NOT SURE WHAT TO DO.”

“POWER STEERING SUDDENLY STOPPED WORKING WHILE I WAS DRIVING. THE VEHICLE IS EXTREMELY DIFFICULT TO NAVIGATE BUT I WAS ABLE TO PULL OFF THE ROAD TO A SAFE AREA. AFTER SHUTTING THE CAR OFF FOR 15 MINUTES AND RESTARTING THE LACK OF POWER STEERING REMAINED, BUT THERE WAS NOW A MESSAGE SAYING "POWER STEERING ASSIST FAULT". THIS CAR HAS SEVERAL OTHER ELECTRICAL PROBLEMS WITH REGARD TO THE A/C & BLOWER, AND ALSO THE DRIVERS SIDE WINDOW AND DOME LIGHTS WORK SPORADICALLY.”

“TL* THE CONTACT OWNS A 2010 MERCURY MARINER. WHILE DRIVING UNKNOWN SPEEDS, THE STEERING WHEEL BECAME DIFFICULT TO TURN WHILE MAKING TURNS. IN ADDITION, THE BATTERY WARNING INDICATOR ILLUMINATED. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS 120,000.”