Replacement of a rear upper control arm on a 2024 Tesla Cybertruck Cyberbeast. The Cybertruck rear suspension is a multi-link design with air suspension; final fastener torque must occur at ride height with vehicle weight on the wheels.

Warnings

Tools required

Parts

• Rear Upper Control Arm Assembly (Cybertruck-specific) × 1 — OEM Tesla Cybertruck rear upper control arm — confirm part number against VIN
• Ball joint nut (single-use if specified by manufacturer) × 1 — Manufacturer-specified self-locking nut
• Control arm through-bolts/nuts (replace if specified single-use) × 1 — Manufacturer-specified fasteners

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with the key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 48V low-voltage battery per Tesla service information for Cybertruck (note: this is 48V, not 12V — connectors and disconnect procedure differ from S/3/X/Y).
4. Do NOT touch, cut, or pierce any orange cable — these are high-voltage and lethal.
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. Activate Jack Mode / Service Mode through the center display to disable the air suspension self-leveling before lifting.
7. Loosen the rear wheel lug nuts while the vehicle is on the ground.
8. Lift the vehicle at the manufacturer-specified lift points using approved pad adapters; support with rated jack stands.
9. Remove the rear wheel on the affected side and set aside on a wheel cradle to avoid damaging the finish.
10. Inspect the area for any orange HV cabling, harnesses, or sensor wiring before beginning work.

Procedure

1. 1

   Support the rear knuckle/upright
   Place a transmission jack or suspension support stand under the rear knuckle to control its position once the upper control arm is released. The air strut and other links will otherwise allow the assembly to drop or shift.
   ⚠Do not let the assembly hang on the air strut, half-shaft, or brake hose — damage to seals or lines may result.
2. 2

   Disconnect sway bar end link (if it interferes)
   If access to the upper arm requires it, disconnect the rear sway bar end link from the suspension by holding the stud with an Allen/hex key and removing the nut. Swing the link clear.
   Torque spec

   Sway Bar Link Nuts55 Nm (41 lb-ft)
3. 3

   Disconnect any wheel-speed / ride-height sensor wiring near the upper arm
   Carefully unclip any harness retainers attached to the upper control arm. The Cybertruck uses ride-height sensors for its air suspension — note routing and orientation before unclipping. Do not pull on the wires.
   ⚠Damaged ride-height sensors will cause the truck to fault out of normal ride height and may require Tesla service software to recalibrate.
4. 4

   Release the upper ball joint from the knuckle
   Remove the ball joint nut securing the upper arm to the rear knuckle. Use a manufacturer-approved separator tool to break the taper. Avoid a pickle fork if the boot must be reused, as it tears boots.
   ⚠Do not strike the knuckle or surrounding components with a steel hammer — use the proper separator tool.
   Torque spec

   Ball Joint Nut88 Nm (65 lb-ft)
5. 5

   Remove the inner pivot bolt(s) from the subframe/body bracket
   Support the arm by hand. Remove the inner pivot bolt(s) attaching the upper control arm to the chassis bracket. Note bolt orientation, washers, and any cam/eccentric alignment marks for alignment reference.
   ℹ️If eccentric cam bolts are present for alignment, mark their position before removal — though final alignment must be verified on an alignment rack regardless.
   Torque spec

   Control Arm Bolts165 Nm (122 lb-ft)
6. 6

   Remove the upper control arm
   Withdraw the arm from the vehicle. Compare the new arm against the old one — bushing orientation, ball joint angle, and any sensor brackets must match.
7. 7

   Install the new upper control arm — inner pivot first
   Position the new arm in the chassis bracket and install the inner pivot bolt(s) hand-tight. Do not final-torque yet — the bushings must be loaded at ride height.
8. 8

   Seat the ball joint into the knuckle
   Insert the ball joint stud into the knuckle. Install a new self-locking nut if specified by the manufacturer. Torque the ball joint nut to specification.
   Torque spec

   Ball Joint Nut88 Nm (65 lb-ft)
9. 9

   Reattach sway bar end link and any harness clips
   Reconnect the sway bar end link, holding the shaft with an Allen key while torquing the nut. Reseat all harness clips, sensor wiring, and brake-line retainers in their original positions.
   Torque spec

   Sway Bar Link Nuts55 Nm (41 lb-ft)

Reassembly

1. Reinstall the rear wheel and hand-thread the lug nuts.
2. Lower the vehicle so suspension is loaded at normal ride height (or simulate ride height with the suspension support if still on the lift, per Tesla service information).
3. With the suspension loaded, final-torque the upper control arm inner pivot bolt(s) to the Control Arm Bolts specification.
4. Torque the wheel lug nuts to the Wheel Lug Nuts specification in a star pattern.
5. Lower the vehicle fully to the ground.
6. Reconnect the 48V low-voltage battery.
7. Exit Jack Mode / Service Mode via the center display and allow the air suspension to re-level.

Verification

• Confirm no warning indicators are present on the center display, particularly air-suspension, ride-height, or ABS faults.
• Visually verify ride height is even side-to-side at the rear after the air system completes self-leveling.
• Test drive at low speed and listen for clunks, binding, or steering pull (steer-by-wire will not give the same feedback as conventional steering — rely on dashboard alerts and vehicle tracking).
• Have a four-wheel alignment performed on a rack rated for Cybertruck weight — any control arm replacement requires alignment.
• Re-inspect upper arm fasteners after the first 100 miles for any loosening; re-torque to spec if needed.
• Note: while you are under the vehicle, this is a good opportunity to check brake fluid age (Tesla recommends replacement every 2 years) and inspect the cabin air filter service interval (every 2 years) — neither is part of this job, but both are commonly overdue.

More procedures for this vehicle