• Welcome to F150Lightningforum.com everyone!

    If you're joining us from F150gen14.com, then you may already have an account here!

    If you were registered on F150gen14.com as of April 16, 2022 or earlier, then you can simply login here with the same username and password!

Sponsored

How to access 12v if Lightning is completely dead?

GDN

Well-known member
First Name
Greg
Joined
Feb 15, 2022
Threads
83
Messages
2,881
Reaction score
3,354
Location
Dallas, TX
Vehicles
Lightning Lariat ER, Performance Y
Occupation
IT
Multi-part question I guess - just how secure is the Frunk on the Lightning? Is there a location to jump the 12v battery other than opening the frunk in some way. I can only relate from a Tesla. If the 12v battery is dead, the contacts can't close and recharge it from the HV battery. This means you need access to the 12v which is in the frunk. So there must be be a "back door" or manual release to get into the frunk. This could indicate it is not 100% secure. Thoughts?
Sponsored

 

jefro

Well-known member
Joined
Oct 28, 2021
Threads
3
Messages
699
Reaction score
231
Location
Texas
Vehicles
F150, Corvette, Bolt EV,
My BMW i3 had some small cables for emergencies. Not sure if the F150 will have them.
 
  • Like
Reactions: GDN
OP
OP
GDN

GDN

Well-known member
First Name
Greg
Joined
Feb 15, 2022
Threads
83
Messages
2,881
Reaction score
3,354
Location
Dallas, TX
Vehicles
Lightning Lariat ER, Performance Y
Occupation
IT
My BMW i3 had some small cables for emergencies. Not sure if the F150 will have them.
Agree - the Model 3 and Y do as well, which means it is not a locked secure frunk. It would take about 30 seconds to get into the frunk of a 3/Y and likely for your i3 as well. It only takes a 9 volt battery.
 

tbinmd

Well-known member
Joined
Sep 23, 2021
Threads
3
Messages
228
Reaction score
129
Location
USA
Vehicles
18 KR F150
In a Porsche you need to apply 12v power to a couple terminals on the fuse panel. Once this is done, you can pop the lock on the frunk to access the battery. Maybe Ford is doing something like this.
 

Maquis

Well-known member
First Name
Dave
Joined
May 20, 2021
Threads
8
Messages
2,940
Reaction score
3,602
Location
Illinois
Vehicles
2021 Mach-E E4-X; 2023 Lightning Lariat ER
If it’s like the Mach-E, the external 12V connection to pop the frunk only functions if your 12V battery is dead. In a normal state, some random person can’t come along with a battery and pop the frunk.
 

Sponsored

LightningShow

Well-known member
Joined
Sep 1, 2021
Threads
50
Messages
1,880
Reaction score
2,208
Location
MA
Vehicles
'22 Lariat ER
Occupation
Product Development
In a Porsche you need to apply 12v power to a couple terminals on the fuse panel. Once this is done, you can pop the lock on the frunk to access the battery. Maybe Ford is doing something like this.

I've had to do this but my 911 has a keyed lock on the door. With some newer cars not having a keyed lock, a manual method of entry becomes more difficult. Although, the Lightning does have a keyed entry.
Sponsored

 
  • Like
Reactions: GDN


 


Top