Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Ford Focus owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2018 Ford Focus. The contact stated that upon starting the vehicle, and while driving at various speeds, messages that the brake fluid level was low, and to shift into park were displayed. The contact stated that other unknown messages were displayed. Additionally, the contact stated that upon turning off the vehicle, the instrument cluster and the infotainment system screen failed to turn off intermittently. The contact stated that the vehicle had also experienced abnormal battery drainage. The vehicle was taken to the dealer, where it was recommended to replace the negative (-) ground wiring cable. The vehicle was repaired; however, the failure recurred the following day. The vehicle was taken back to the dealer, where it was diagnosed and determined that the TCM had failed, and the failure could be the cause of the battery drainage. …
After working on [redacted], my vehicle made it home, and wouldn't start. After jump starting, I began to drive it to the dealership. My safety, and others, was put at risk when the car began to smoke, lost power in a driving lane, and then burned down with extreme intensity. The dealership isn't helping. Ford said their Office of General Council is still looking into it, but originally denied my claim before saying they would reconsider my case. An official report from the Lakeland Fire Department stated mechanical failure and loss estimated to be equal to $10,000. The engine light blinked on the way home, the oil lamp went off and on, and then the car wouldn't start. These were the only signs prior to a total loss of power and smoke before my life was in jeopardy.
The contact owns a 2018 Ford Focus. The contact stated while driving approximately 60 MPH, the vehicle suddenly stalled. The vehicle was later taken to the local mechanic who diagnosed that the purge valve was faulty and needed to be replaced. The vehicle was not yet repaired. The contact also indicated that the vehicle had previously experienced rough idling, check engine light illuminated, fuel gauge reading errors, and the Distance to Empty reading was incorrect. The local dealer was notified of the failures. The manufacturer was not notified. The VIN was not included in NHTSA Campaign Number: 18V735000 (Fuel System, Gasoline). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 55,000.
The contact owns a 2018 Ford Focus. The contact stated that the infotainment system had failed to turn on intermittently. Additionally, the contact stated that the rearview camera was intermittently inoperable while reversing. There was no warning light illuminated. The contact stated that the failure had been recurring increasingly. The vehicle was taken to the dealer, where it was diagnosed that the Accessory Protocol Interface Module (APIM) had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 121,000. The contact stated she had to replace the whole unit at the cost $1500.00 in repairs.
The contact owns a 2018 Ford Focus. The contact stated that upon starting the vehicle, the "Transmission Failure, Service Immediately" message appeared on the instrument panel. The contact had the vehicle towed to the dealer where she was informed that the electrical wiring was soy based, which attracted rodents to chew on the wires. The contact stated prior to the failure, the oxygen sensor warning light had appeared on the instrument panel and was serviced by the dealer. The manufacturer was notified of the failure and a complaint was filed. The vehicle was not repaired. The failure mileage was approximately 15,000.
The contact owns a 2018 Ford Focus. The contact stated that after starting the vehicle, the transmission experienced rough shifting while the vehicle jumped, and the engine revved loudly. The transmission fault message was displayed. Additionally, the fuel gauge level was inaccurate. The vehicle was taken to the dealer, where it was diagnosed that the transmission control unit (TCU) needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 73,474.
Vehicle stopped working June 21. Car refused to start up. Had it jumped, battery was completely drained. Discovered had no reverse, drive works up to 10-15mph. Drove it short distance to a Ford dealer service center. Discovered they said it's a powertrain issue and they're 3 weeks behind as they have no available mechanic to look at it. Called another dealer and was told the same thing. Had it towed home. Took it to a highly recommended mechanic and they said the powertrain is shot and needs replacing. Discovered it's a well known documented issue as of 2020. I have extended warranty on it but it may be denied because A) one ford dealer who did some work on the car within first few months of purchase "lost" my service records as they claim its not in their system. B) possibly denied because it's a known defect and they'd lose money to replace it. There's no recall on this defect. …
When weather began to get cold in 2023, the car's Sync system and all associated electronics (back up camera, usb ports, radio, navigation, touch screen, etc.,) went dark. At first 30% of the time, but within weeks the system was dead. Looking online, we found many other people having similar experiences with Ford products. The Ford dealership who serviced the problem said it was very common in Ford 150s. At first the component would fail and turn off and on intermittently. There was no warning. It would cut out or resume mid trip. Within a day or so, failure and possible resumption only happened when the car was turned on from a full stop and key removal. Updating the Sync system was not an option as it would go black or not connect to any methods. Dealership was unable to attempt an update as well. The part was replaced by a ford dealership. I no longer have it but they may. …
I have had several Ford Focuses and I'm not sure why I keep buying them. The transmission shudders or slips. Makes awful noises like grinding or something hitting the fan blade. I currently have 7 codes stored in the car but no check engine light. My garage thinks maybe it needs a new ABS control module. The display screen goes black all the time and doesn't come back on. Ford is aware of these issues in the 2018 models and continues to do nothing. I've been a loyal Ford buyer for years and I'm never buying "American made" again. They cut corners and produce trash vehicles that the consumer has to pay out of pocket for repairs. Current codes are P219A and C. U0121, U0140, U0256, U0452 and U2101. The car always makes a strange beeping noise. It sounds like a warning chime but no lights come on or anything. The car has AWFUL fuel mileage currently. …
I am adding a major update to my safety recall complaint because this dealership just tried to pull an illegal financial ambush on me.After my 2019 Focus started stalling out on the highway right after they did Recall 18V735, I brought it back. I explicitly told them in writing on our text thread: 'I do not authorize any standard diagnostic fees, parts, or repair charges.' I just wanted them to show me proof that they didn't pinch a wire or glitch the software during the recall work.Instead of showing me proof, they sent me a text message today saying my vehicle was 'ready for pick up' just to lure me down to the lobby. When I got there, they slapped an unauthorized invoice for $988.82 in front of my face for parts and labor. …
NHTSA investigations
Pedestrian alert sounds
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles.
Electrical complaints in other Focus years
Frequently asked questions
How common are electrical problems on the 2018 Ford Focus?
NHTSA has 49 complaints about the electrical system of the 2018 Ford Focus, 6% of the model year's 837 complaints. The component named most often is instrument panel › fuel gauge (2 mentions).
Is there a recall for 2018 Ford Focus electrical problems?
No. NHTSA lists no electrical system recall for the 2018 Ford Focus, though it has 7 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2018 Ford Focus electrical problems start?
Half of the complaints with a recorded mileage happened before about 43,000 miles, and 36% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.