2019 Ford Fusion Hybrid Engine Problems

2019 Ford Fusion Hybrid SE. Vehicle experienced a “Stop Safely Now” warning with hybrid system shutdown, occurring both while driving and while parked/idling, causing jerking symptoms. This puts driver and other roadway users at risk, as loss of power/propulsion can occur without warning while in motion. Vehicle also set a P0073 (ambient air temperature sensor circuit high) fault code. The ambient air temperature sensor was replaced (Ford part numbers AU5Z-12A647-B / FC4Z-12A647-A) but the underlying issue has not been fully resolved and diagnostics are ongoing. Vehicle also had a prior transmission replacement (January 2023). Vehicle has also had extreme, unresolved electrical issues: fuses repeatedly burning out, lights burning out, two horns replaced due to failure, backup camera display turning blue/failing, and dashboard warning lights randomly illuminating. The dealership has confirmed electrical issues are occurring but has not been able to identify the root cause despite inspection. Issue has been confirmed/reproduced by a dealer. Vehicle and components are available for inspection upon request. Exact onset date of symptoms is UNKNOWN, but warning lamps and jerking preceded the “Stop Safely Now” shutdown events.* problems have been ongoing since purchase of the vehicle in 2019. Ongoing still in 2016

NHTSA ID

11752200

Incident

Jul 1, 2019

The contact called on behalf of his girlfriend who owns a 2019 Ford Fusion Hybrid. The contact stated that while his girlfriend was driving 70 MPH, the automotive power was reduced. The message "Pull Over" was displayed, and the check engine warning light was illuminated. The driver immediately pulled over and restarted the vehicle. The vehicle was taken to an unknown local dealer to be diagnosed, and the dealer advised the contact that additional diagnostic testing was required to determine the cause of failure. The vehicle was not yet diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 140,000.

NHTSA ID

11669455

Incident

Jun 25, 2025

Mileage

140,000 mi

Coolant leak issue that caused the check engine light to turn on. This defect is present within these 2019 Ford Fusion Hybrids with EcoBoost engines. My safety and the safety of my passengers was put at risk since this defect can cause coolant to leak into the cylinders, leading to corrosion, misfires, engine failure, and even potential car fires. My mechanic gave it a diagnostic check and the following issues were detected: Random Misfire Detected- Not Current DTC, Cylinder 2 Misfire Detected- Warning Lamp On, and Misfire Detected on Startup (First 1000 revolutions) - Pending DTC. He also noted that the coolant level was low. I reached out to my local Ford service department and they wouldn't assist me with this serious concern.

NHTSA ID

11600214

Incident

Jul 2, 2024

Internal Engine block coolant leak

NHTSA ID

11549533

Incident

Aug 9, 2023

Car has 89,900 miles on it. Has been serviced every 5k miles. Never had an issue. And then last Friday the car started making a rattling sound under the hood. So I pulled over. No warning lights whatsoever was visible. I turned the car off checked everything and it all seemed fine. I turned back on the car and heard nothing. So I began to drive and after 2 mins the noise started again and now a warning ⚠️ light appeared and stated to pullover safely. I had it towed to shop only to find out that my engine was blown!

NHTSA ID

11519082

Incident

Apr 21, 2023

For an unknown reason, the car caught fire and exploded while parked in a residential parking lot.

NHTSA ID

11518852

Incident

Apr 20, 2023

TL* THE CONTACT OWNS A 2019 FORD FUSION HYBRID. THE CONTACT STATED THAT THE COOLANT LEVEL WAS BELOW THE MINIMUM MARK WHEN THE VEHICLE WAS PURCHASED. THE CONTACT STATED THAT AFTER TOPPING OFF THE COOLANT AND DRIVING FOR A WHILE, THE COOLANT LEVEL WAS AGAIN BELOW THE MINIMUM LEVEL. THE VEHICLE WAS TAKEN TO ROD BAKER FORD SLS INC (16101 S LINCOLN HWY, PLAINFIELD, IL 60586) ON APPROXIMATELY TEN SEPARATE OCCASIONS WHERE THE CONTACT WAS PROVIDED DIFFERENT DIAGNOSTIC INFORMATION EACH TIME THE VEHICLE WAS BROUGHT IN. THE MECHANIC PERFORMED A PRESSURE TEST ON THE VEHICLE AND THE CONTACT WAS INFORMED THAT THERE WERE NO LEAKS INSIDE THE VEHICLE. THE FAILURE HAD PERSISTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND REFERRED THE CONTACT TO ANOTHER DEALER. THE FAILURE MILEAGE WAS APPROXIMATELY 28,000.

NHTSA ID

11375655

Incident

Apr 1, 2020

Mileage

28,000 mi

TL* THE CONTACT OWNS A 2019 FORD FUSION. AS THE CONTACT PULLED THE VEHICLE INTO A PARKING SPACE AND PLACED THE GEAR INTO PARK, THE ENGINE REVVED THREE TIMES. THE VEHICLE JERKED FORWARD BEFORE SHUTTING OFF ON ITS OWN. A FEW MINUTES LATER, THE CONTACT RESTARTED THE VEHICLE AND IT OPERATED NORMALLY. THE CONTACT MANAGED TO DRIVE THE VEHICLE HOME. THE CONTACT CALLED JORGENSEN FORD SALES, INC. (8333 MICHIGAN AVE, DETROIT, MI 48210, (313) 584-2250) AND WAS INFORMED TO BRING THE VEHICLE TO THEIR SERVICE DEPARTMENT. THE VEHICLE WAS TOWED TO THE DEALER, BUT NO FAILURE WAS FOUND. THE CONTACT STATED THAT SHE NO LONGER WANTED THE VEHICLE. THE DEALER REFERRED THE CONTACT TO THE MANUFACTURER TO TRY TO GET OUT OF THE LEASE. THE MANUFACTURER ASSIGNED A CASE NUMBER AND MANAGER TO THE CONTACT. THE CASE MANGER INFORMED THE CONTACT THAT THE DEALER FOUND NO FAILURE AND COULD NOT LEASE HER ANOTHER VEHICLE. THE CONTACT REFUSED TO TAKE THE VEHICLE BACK AND THREATENED TO MAKE NO MORE PAYMENTS ON IT EVEN IF IT RUINED HER CREDIT. THE FOLLOWING DAY, THE DEALER TRIED TO RETURN THE VEHICLE, BUT THE CONTACT REFUSED. THE CONTACT SPOKE WITH THE DEALER MANAGER AND THEY FINALLY AGREED TO LET THE CONTACT LEASE A NEW VEHICLE; HOWEVER, THEY ROLLED OVER THE OTHER LEASE INTO THE NEW VEHICLE, WHICH DOUBLED THE MONTHLY PAYMENTS. THE DEALER JUSTIFIED THIS BY STATING THAT NO FAILURE WAS FOUND WITH THE FIRST VEHICLE AND BLAMED THE CONTACT. THE FAILURE MILEAGE WAS 100.

NHTSA ID

11187067

Incident

Feb 14, 2019

Mileage

100 mi