2025-09-26

Terrestrial Armor (Retrofit)

Correction code S018812001 1.62 S028812001 1.68 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email ServiceManualFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure. See Ergonomic Precautions for safe and healthy working practices.

Retrofit Terrestrial Armor; Updated HV Battery Rear Skid Plate Already Installed (Retrofit) Correction code S018812001 FRT 1.62
Retrofit Terrestrial Armor And Replace HV Battery Rear Skid Plate With Updated Part (Retrofit) Correction code S028812001 FRT 1.68

Warning

This procedure is a DRAFT. Although it has been validated, Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near High Voltage systems and components. Provide corrections and feedback to ServiceDevelopment@teslamotors.com.

2025-09-24: Released new procedure.

Torque Specifications

Table 1. Torque Specifications: Terrestrial Armor (Retrofit)
Description	Torque Value	Recommended Tools	Reuse/Replace	Notes
Bolts (x5) that attach the LH off road structural rocker to the vehicle under body.	28 Nm (20.6 lbs-ft)	13 mm deep socket 15 mm deep socket Torque wrench with angle measurement	Reuse	The forwardmost bolt is longer with a 15 mm drive size. x1 bolt, 15 mm x4 bolts, 13 mm
Bolts (x6) that attach the LH off road structural rocker to the front rocker support bracket.	13 Nm (9.6 lbs-ft)	External Torx Plus EP10 Torque wrench with angle measurement	Reuse	EP10
Bolts (x6) that attach the LH off road structural rocker to the rear rocker support bracket.	13 Nm (9.6 lbs-ft)	External Torx Plus EP10 Torque wrench with angle measurement	Reuse	EP10
Bolts (x2) that attach the LH off road structural rocker to the LH front and rear door rings.	14 Nm (10.3 lbs-ft)	10 mm deep socket Torque wrench with angle measurement	Reuse	10 mm
Bolts (x5) that attach the LH off road rocker carrier to the LH off road structural rocker.	13 Nm (9.6 lbs-ft)	10 mm socket Cordless Ratchet/Impact Driver Ext, Wobble, 1/4" DR, 1.25" Torque wrench with angle measurement	Reuse	10 mm
Bolts (x2) that attach the LH off road rocker trim to the LH off road rocker carrier	4 Nm (2.9 lbs-ft)	10 mm socket Cordless Ratchet/Impact Driver Ext, Wobble, 1/4" DR, 1.25" Torque wrench with angle measurement	Reuse	10 mm
Bolts (x4) that attach the front side of the HV battery off road armor assembly to the HV battery.	28 Nm (20.6 lbs-ft)	6 in extension 13 mm socket Torque wrench with angle measurement	Reuse	13 mm
Bolts (x5) that attach the rear side of the HV battery off road armor assembly to the HV battery.	28 Nm (20.6 lbs-ft)	6 in extension 13 mm socket Torque wrench with angle measurement	Replace	13 mm
Bolts (x4) that attach the HV battery off road armor assembly to the HV battery ski rail.	26 Nm (19.2 lbs-ft)	15 mm socket Flex head ratchet/flex head torque wrench	Reuse	15 mm

Retrofit

CAUTION

The original LH and RH front and rear rocker step reinforcements (x4) are not compatible with the new terrestrial armor parts. Do not reinstall the rocker step reinforcements during this procedure. Make note of this and set the step reinforcements aside once removed from the vehicle.

On the vehicle touchscreen, touch Controls (vehicle icon) > Software, and then scroll down to display the vehicle firmware version. Verify firmware version is 2025.2.3 or later
- If the vehicle is operating with firmware version 2025.2.3 or later, skip to step 2.
- If the vehicle is operating with a firmware version earlier than 2025.2.3, update to version 2025.2.3 or later, and then continue to the next step. See Software Update (Over The Air).
On the touchscreen, touch Controls > Suspension > Very High to set the vehicle ride height to Very High.
On the touchscreen, touch Controls > Service > Jack Mode to enable Jack Mode.
Run ODIN routine PROC_ICE_X_ENTER-SERVICE-MODEvia Toolbox: (link).
Remove the LH rocker assembly. See Rocker Panel Assembly - LH (Remove and Install).
Remove the LH front rocker step reinforcement. See Rocker Step Reinforcement - Front - LH (Remove and Install).
Remove the LH rear rocker step reinforcement. See Rocker Step Reinforcement - Rear - LH (Remove and Install).
Remove the RH rocker assembly. See Rocker Panel Assembly - LH (Remove and Install).
Remove the RH front rocker step reinforcement. See Rocker Step Reinforcement - Front - LH (Remove and Install).
Remove the RH rear rocker step reinforcement. See Rocker Step Reinforcement - Rear - LH (Remove and Install).
Install the new U-nuts (x6) on the LH front rocker support bracket.

CAUTION
The LH front rocker support bracket forwardmost U-nut must be installed on the LH front rocker support bracket fastener hole closest to the front of the vehicle.

CAUTION
The LH front rocker support bracket rearmost U-nut must be installed on the LH front rocker support bracket fastener hole closest to the rear of the vehicle.

Note
Make sure the U-nuts are centered on the LH front rocker support bracket fastener holes.

Figure 1. LH rocker support bracket; RH similar

Figure 2. LH front rocker support bracket; RH similar
Install the new U-nuts (x6) on the LH rear rocker support bracket.

CAUTION
The LH rear rocker support bracket forwardmost U-nut must be installed on the LH rear rocker support bracket fastener hole closest to the front of the vehicle.

CAUTION
The LH rear rocker support bracket rearmost U-nut must be installed on the LH rear rocker support bracket fastener hole closest to the rear of the vehicle.

Note
Make sure the U-nuts are centered on the LH rear rocker support bracket fastener holes.

Figure 3. LH rocker support bracket; RH similar

Figure 4. LH rear rocker support bracket; RH similar
Repeat steps 11 and 12 for the RH front and rear rocker support bracket U-nuts (x12).

Figure 5. RH rocker support bracket; LH similar
Fully raise the vehicle using the rocker lift points. See Raise Vehicle - 2 Post Lift.
Inspect the HV battery rear skid plate to determine whether it needs to be replaced.
CAUTION
The HV battery rear skid plate (part number 1854631-C0-A or earlier) is not compatible with the Terrestrial Armor parts.
- If the HV battery rear skid plate does not have stamped channels (x4), replace the rear skid plate with an updated part (1854631-00-B or later). Skip to step 16.
- If the HV battery rear skid plate does have stamped channels (x4), skip to step 17.
Figure 6. Rear skid plate (part number 1854631-C0-A or earlier)

Figure 7. Rear skid plate (part number 1854631-00-B or later)
Replace the HV battery rear skid plate with an updated part (part number 1854631-00-B or later). See Skid Plate - Rear (Remove and Install).

CAUTION
Do not install the bolts (x5) that attach the front edge of the HV battery rear skid plate to the vehicle at this time. Skip to step 18.
Remove and discard the bolts (x5) that attach the front edge of the HV battery rear skid plate to the vehicle. See Skid Plate - Rear (Remove and Install).
Position the off road center ski nuts (x4) on the vehicle, and then slide the center ski nuts inside of the HV battery ski rail towards the front of the vehicle until the tabs engage with the ski rail.

Note
Make sure the center ski nuts are properly secured and centered in the HV battery ski rail.
With assistance, place the HV battery off road armor assembly on the manual lift battery table, position the armor assembly under the vehicle, and then align the center of the armor assembly with the HV battery ski rail.
TIp
Use of the following tool(s) is recommended:

1020566-00-F - HV Battery Table
Lower the vehicle until the HV battery is nearly touching the HV battery off road armor assembly. See Raise Vehicle - 2 Post Lift.
Align the HV battery off road armor assembly and HV battery fastener holes (x23), and then raise the manual lift battery table until the armor assembly is flush against the HV battery.
Prepare the HV battery off road armor assembly fasteners for installation.
Hand-tighten the bolts (x4) that attach the HV battery off road armor assembly to the HV battery ski rail.

Note
Do not torque the bolts at this time.
Hand-tighten the bolts (x4) that attach the front side of the HV battery off road armor assembly to the HV battery.

Note
Do not torque the bolts at this time.

Figure 8. Total number of HV battery front and rear fasteners shown for clarity
Hand-tighten the new bolts (x5) that attach the rear side of the HV battery off road armor assembly to the HV battery.

Note
Do not torque the bolts at this time.

Figure 9. Total number of HV battery front and rear fasteners shown for clarity
Raise the vehicle and remove the manual lift battery table from the workspace. See Raise Vehicle - 2 Post Lift.
Lower the vehicle until the tires touch the ground. See Raise Vehicle - 2 Post Lift.
If not already performed, install butyl patches on the LH front and rear vehicle body side exposed holes.

Note
Some Cybertrucks may have additional vehicle body side exposed holes.
1. Use IPA wipes to clean the surface areas of the LH front and rear vehicle body side exposed holes (x4). Allow 1 minute dry time.
  
  Figure 10. LH front vehicle body side exposed holes location for reference; RH similar
  
  Figure 11. LH front vehicle body side exposed holes; RH similar
  
  Figure 12. LH rear vehicle body side exposed holes location for reference; RH similar
  
  Figure 13. LH rear vehicle body side exposed holes; RH similar
2. Install the butyl patches (x4) on the LH vehicle body side exposed holes.
  
  Note
  Use a seam roller to fully wet out the butyl patches. Cut the butyl patches as needed to cover the exposed holes if additional holes are present.
  
  Figure 14. LH front vehicle body side butyl patches; RH similar
  
  Figure 15. LH rear vehicle body side butyl patches; RH similar
With assistance, position the LH off road structural rocker on the vehicle, and then hand-tighten the bolts (x2) that attach the structural rocker to the LH front and rear door rings.

CAUTION
If assistance is unavailable, place a shop rag between the floor jack and structural rocker to protect the structural rocker paint, and then use a floor jack to position the structural rocker on the vehicle.

Note
Do not torque the bolts at this time.

Figure 16. LH off road structural rocker to rear door ring bolt; RH similar

Figure 17. LH off road structural rocker to front door ring bolt; RH similar
Hand-tighten the bolts (x5) that attach the LH off road structural rocker to the vehicle under body.

CAUTION
The forwardmost bolt is longer with a 15 mm drive size. Do not install the longer bolt in the incorrect fastener hole.

Note
Do not torque the bolts at this time.
Hand-tighten the bolts (x6) that attach the LH off road structural rocker to the front rocker support bracket.

Note
Install the first bolt on the second fastener hole closest to the front of the vehicle, and then install the remaining bolts while maintaining one exposed fastener hole between every bolt.

Note
Do not torque the bolts at this time.
Hand-tighten the bolts (x6) that attach the LH off road structural rocker to the rear rocker support bracket.

Note
Install the first bolt on the second fastener hole closest to the rear of the vehicle, and then install the remaining bolts while maintaining one exposed fastener hole between every bolt.

Note
Do not torque the bolts at this time.
Torque the bolts (x5) that attach the LH off road structural rocker to the vehicle under body.
28 Nm (20.6 lbs-ft)
CAUTION
The forwardmost bolt is longer with a 15 mm drive size.

Note
Make sure the bolts that attach the structural rocker to the vehicle under body are torqued first before proceeding to the next step.
TIp
Use of the following tool(s) is recommended:

13 mm deep socket

15 mm deep socket

Torque wrench with angle measurement
Torque the bolts (x6) that attach the LH off road structural rocker to the front rocker support bracket.
13 Nm (9.6 lbs-ft)
TIp
Use of the following tool(s) is recommended:

External Torx Plus EP10

Torque wrench with angle measurement
Torque the bolts (x6) that attach the LH off road structural rocker to the rear rocker support bracket.
13 Nm (9.6 lbs-ft)
TIp
Use of the following tool(s) is recommended:

External Torx Plus EP10

Torque wrench with angle measurement
Torque the bolts (x2) that attach the LH off road structural rocker to the LH front and rear door rings.
14 Nm (10.3 lbs-ft)
TIp
Use of the following tool(s) is recommended:

10 mm deep socket

Torque wrench with angle measurement
Figure 18. LH off road structural rocker to rear door ring bolt; RH similar

Figure 19. LH off road structural rocker to front door ring bolt; RH similar
While following the outer edge of the LH rear wheel liner, use scissors to make a 35 mm cut in the wheel liner moving upwards, and then cut along the upper edge of the LH off road structural rocker moving outwards to remove a piece of the wheel liner. Discard the 35 mm wheel liner piece.

CAUTION
It is necessary to remove a 35 mm piece of the rear wheel liner to allow enough room to properly install the LH off road rocker carrier.
Position the LH off road rocker carrier on the vehicle, engage the clips (x13), and then install the bolts (x5) that attach the LH off road rocker carrier to the LH off road structural rocker.
13 Nm (9.6 lbs-ft)
Note
Make sure that the carrier clips are fully seated first, and then install the bolts.
TIp
Use of the following tool(s) is recommended:

10 mm socket

Cordless Ratchet/Impact Driver

Ext, Wobble, 1/4" DR, 1.25"

Torque wrench with angle measurement
Position the LH off road rocker trim on the vehicle, engage the clips (x14), and then install the bolts (x2) that attach the LH off road rocker trim to the LH off road rocker carrier.
4 Nm (2.9 lbs-ft)
Note
Make sure the rocker trim panel is fully seated.
TIp
Use of the following tool(s) is recommended:

10 mm socket

Cordless Ratchet/Impact Driver

Ext, Wobble, 1/4" DR, 1.25"

Torque wrench with angle measurement
Figure 20. LH off road rocker trim front bolt

Figure 21. LH off road rocker trim rear bolt
Secure the clips (x13) that attach the front of the LH rear fender flare cover to the vehicle.

Note
Replace any missing or damaged clips.
Install the clip that attaches the LH rocker cover to the LH rear wheel liner.
Connect the electrical connector, and then secure the clips (x11) that attach the rear of the LH fender flare cover to the vehicle.

Note
Replace any missing or damaged clips.
Install the clip that attaches the LH rocker cover to the LH front wheel liner.
Repeat steps 28 through 43 for the RH off road armor parts as required, and then continue to the next step.
Fully raise the vehicle. See Raise Vehicle - 2 Post Lift.
Torque the bolts (x4) that attach the front side of the HV battery off road armor assembly to the HV battery.
28 Nm (20.6 lbs-ft)
TIp
Use of the following tool(s) is recommended:

6 in extension

13 mm socket

Torque wrench with angle measurement
Figure 22. Total number of HV battery front and rear fasteners shown for clarity
Install the new bolts (x5) that attach the rear side of the HV battery off road armor assembly to the HV battery.
28 Nm (20.6 lbs-ft)
TIp
Use of the following tool(s) is recommended:

6 in extension

13 mm socket

Torque wrench with angle measurement
Figure 23. Total number of HV battery front and rear fasteners shown for clarity
Torque the bolts (x4) that attach the HV battery off road armor assembly to the HV battery ski rail.
26 Nm (19.2 lbs-ft)
TIp
Use of the following tool(s) is recommended:

15 mm socket

Flex head ratchet/flex head torque wrench
Fully lower the vehicle. See Raise Vehicle - 2 Post Lift.
Run ODIN routine PROC_ICE_X_EXIT-SERVICE-MODEvia Toolbox: (link)
On the touchscreen, touch Controls > Suspension > Standard to set the vehicle ride height to Standard.
Provide all original parts removed from the vehicle to the customer once the retrofit procedure is complete. Inform the customer that the LH and RH front and rear rocker step reinforcements (x4) are not compatible with the terrestrial armor parts.