Jager
Well-known member
- First Name
- Jeff
- Joined
- May 25, 2020
- Threads
- 25
- Messages
- 342
- Reaction score
- 1,093
- Location
- Virginia
- Vehicles
- 2024 Cybertruck AWD, 2022 Model 3 LR AWD
- Thread starter
- #1
Yesterday morning I went into the Tesla app on my phone and bumped the charge limit on my Cybertruck from 55% (where it had sat overnight) to 70%. It began charging, as expected.
A couple hours later I went back into the app to see how close the charge was to completing. The app would not connect. I didn't think (or worry) to much about it.
A while later I went out to the truck to go for a drive. The door would not open. Fishing the key card out of my wallet, that didn't do anything, either. No light on the charge port (and the wall charger was lit with a steady blue). Mirrors remained folded. Truck was totally unresponsive.
Retrieving the small lithium jump starter I carry on my motorcycle trips, I fished out the emergency frunk release cable from its hidden compartment. Applying the jump starter to its leads, the frunk latches released and the horn began its I'm-being-stolen blaring (that stopped after 20-30 seconds).
Manually lifting the frunk (required a bit of effort to overcome the hydraulics), I removed the service panel and located the positive and negative jump posts to the 48v MV system. Applying the jump starter to those posts, I could hear the distant sound of the vehicle starting to awaken. At that point the key card let me open the door; and pressing the button on the charger handle illuminated the charge port indicator light and released the pins in the charge port, allowing me to remove the charger.
Unfortunately, my jump starter would not output ~12v long enough to fully boot the vehicle. After about 30 seconds the jump starter automatically closed that circuit. I tried restarting it - the jump starter - several times and each time I could hear the vehicle boot begin, but that process would terminate as soon as the jump starter turned itself off.
That's the point of this post. Be aware that you'll need to provide a steady ~12v for a couple minutes in order to boot the Cybertruck. I'm guessing many/most of the smaller lithium jump starters that have become so ubiquitous will terminate that ~12v supply well before the boot sequence can complete.
I was ultimately able to bring my truck back to life by jumping it with an ICE vehicle. More than a little ironic, but it is what it is.
A couple hours later I went back into the app to see how close the charge was to completing. The app would not connect. I didn't think (or worry) to much about it.
A while later I went out to the truck to go for a drive. The door would not open. Fishing the key card out of my wallet, that didn't do anything, either. No light on the charge port (and the wall charger was lit with a steady blue). Mirrors remained folded. Truck was totally unresponsive.
Retrieving the small lithium jump starter I carry on my motorcycle trips, I fished out the emergency frunk release cable from its hidden compartment. Applying the jump starter to its leads, the frunk latches released and the horn began its I'm-being-stolen blaring (that stopped after 20-30 seconds).
Manually lifting the frunk (required a bit of effort to overcome the hydraulics), I removed the service panel and located the positive and negative jump posts to the 48v MV system. Applying the jump starter to those posts, I could hear the distant sound of the vehicle starting to awaken. At that point the key card let me open the door; and pressing the button on the charger handle illuminated the charge port indicator light and released the pins in the charge port, allowing me to remove the charger.
Unfortunately, my jump starter would not output ~12v long enough to fully boot the vehicle. After about 30 seconds the jump starter automatically closed that circuit. I tried restarting it - the jump starter - several times and each time I could hear the vehicle boot begin, but that process would terminate as soon as the jump starter turned itself off.
That's the point of this post. Be aware that you'll need to provide a steady ~12v for a couple minutes in order to boot the Cybertruck. I'm guessing many/most of the smaller lithium jump starters that have become so ubiquitous will terminate that ~12v supply well before the boot sequence can complete.
I was ultimately able to bring my truck back to life by jumping it with an ICE vehicle. More than a little ironic, but it is what it is.
Sponsored
