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Repeated “Stop Safely Now” Fault on Kuga PHEV – Advice Needed

473 views 6 replies 5 participants last post by  owoodings  
#1 ·
Hi all,

I’m hoping to get some advice and perspective from other Kuga PHEV owners, as I’m at a bit of a loss with my car (see profile). It’s now been into Ford dealerships three times for the same serious fault, and I’m still no closer to a resolution.

The fault
Usually within 10 minutes of starting a journey, the car suddenly loses all drive and displays a red “Stop Safely Now” warning, along with multiple dashboard lights. It cannot be restarted in that state. After 5–20 minutes it will start again, this time only showing an amber “check engine” light (which disappears on its own after a few hours/days). The Ford Pass app flags that the engine needs servicing.

Timeline
  • Mar 2025 – Received recall letter telling us to stop charging the HV battery due to fire risk.
  • Jun 11 – First “Stop Safely Now” incident. Recovered to Group 1 Basingstoke. Told it was related to the recall, and FSA 24S79 was applied.
  • Jun 21 – Fault reoccurred, just before our baby was due. Hired another car for safety.
  • Jun 23 – Reported to Ford Customer Care (case raised but no follow-up).
  • Jul 9 – Service at Group 1 Farnborough. Diagnosed as 12v battery failure, which we replaced (£490 total including service fee). Told this would fix it.
  • Aug 23 – Fault reoccurred again.
  • Aug 29 – Back to Farnborough. This time told it may be due to not charging the HV battery regularly enough. Technician said we should charge it once a week, even if it shows empty, since the HV battery is also used for operations like charging the 12v.
The problem is: Ford’s earlier recall letter explicitly told us to stop charging the HV battery. We’ve followed that instruction ever since, out of safety concerns.

My concerns
  • The root cause still hasn’t been proven – just theories.
  • The dealer is now implying the issue is our fault because we haven’t been charging the HV battery, but we only stopped because Ford told us to.
  • I can’t find any official Ford documentation that says PHEVs must be charged weekly to stay operational. My understanding was that they should still be usable on petrol alone, with charging being optional for efficiency.
  • This whole saga has cost us £800+ already in hire cars, fuel, and the new 12v battery – not to mention the stress at a time when we’ve just had a newborn.
What I think needs to happen
  • Replace the HV battery under warranty, since it may have been damaged as a direct result of Ford’s “do not charge” instruction.
  • Provide collection/return or a courtesy car during any further work, or reimburse us for hire costs.
  • Reimburse the premature 12v battery replacement and all associated service/hire/fuel costs.

My ask to the community:
  • Has anyone else been told their Kuga PHEV needs regular HV battery charging to avoid faults like this?
  • Has anyone else had to have their 12v battery replaced since earlier than expected/following the battery recall?
  • Do you think the dealership’s stance here (blaming lack of charging) is reasonable, or am I right to push back?
  • Are my expectations reasonable?

Thanks in advance :) Really appreciate any thoughts or shared experiences.
 
#2 ·
Unfortunately I cannot provide advice on your main concerns. However, here are some thoughts.
If your 12V battery was there from 2020, its departure is far from being premature (its lifetime is estimated between 3 and 5 years).
After applying the recall, the ban on recharging the HV battery no longer applies.
£490 for replacing the 12V battery seems really excessive.
You are right to expect that you can also never plug your car in, if you wish (it seems that there are many owners doing so).

All this points towards the indication of changing workshop/dealer.

Congratulations for your newborn!
 
#3 ·
Thanks for taking the time to reply @bartopesto!



That's good to know about the battery, I guess I am unlikely to get anywhere with that avenue if it's needed replacing at a normal point.



We continued to not charge the car even after the recall was applied because we were continuing to experience the fault as described in the recall letter - simply put, we were still worried it might catch fire!



Fair point about the dealer to be honest, I've not been very impressed with them. There's another chain near us (Trust Ford), I might switch to them for future work. The battery itself cost about £290, with £90 fitting costs and then £142 for the service investigation fees.
 
#4 ·
:mad:£90 to fit a battery. That's undoing two clamps and checking . So, basically your garage is charging £360 per hour to fit a battery which costs, at full retail £162.00. Checking a battery takes less than a minute to determine it's ability to hold a charge. Sorry, but yu have been consumately ripped off. Find a different garage (preferably a good independent as there is no need to take afive year old car to a franchise dealer) and find it fast.
 
#7 ·
It still remains unsolved. Ford Customer Care were quite useless, their technical team was not able to offer any insight and said that the next time the issue happens I need to immediately take it to my nearest dealer. Since then, the issue has not re-occurred. I have been occasionally charging the high voltage battery to try and mitigate any issues originating there, but i can't say if it has necessary made a difference.