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Service bulletin SB-20-31-006 R2

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10203341
Published by NHTSA2021-11-08
Manufacturer's numberSB-20-31-006 R2
Manufacturer's date2021-07-01
NHTSA componentSUSPENSION

NHTSA's summary

On certain Model 3, Model Y, and Model X vehicles, there may be a water ingress path to both front upper control arm ball joints that, over time, could possibly lead to surface corrosion of these ball joints. This may result in a creaking sound coming from the front suspension when steering at low speeds and under high loads. This is exclusively an NVH condition only and does not result in premature failure of the ball joints.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
TESLA MODEL 32018, 2019, 2020
TESLA MODEL X2018, 2019, 2020
TESLA MODEL Y2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V2350002023-03-31. SUSPENSION:CRITICAL FASTENERS; SUSPENSION:FRONT
20231942023-03-24. Suspension
21V9120002021-11-21. SUSPENSION
20216492021-10-25. Suspension
21V8350002021-10-25. SUSPENSION:FRONT; SUSPENSION:CRITICAL FASTENERS
20V7090002020-11-17. SUSPENSION:FRONT:CONTROL ARM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SB-25-31-0042025-07-04. Service bulletin. A firmware diagnosis feature is being introduced on Model 3 and Model Y vehicles that monitors wheel alignment over time. This feature detects changes in wheel alignment that may be related to incorrect tire pressures, degraded ball joints, bushings or damaged suspension links. If the feature determines that an inspection at a Tesla Service Center is required, a customer-facing alert will appear on the touchscreen.
SB2016003R12024-02-20. Service bulletin. Certain Model 3 high voltage batteries may not have a sufficient quantity of bolts for the contactor DC link busbars, which may prevent the vehicle from charging or powering properly.
SB1831005R12022-05-02. Service bulletin. On certain Model 3 vehicles, the front stabilizer bar link ball joint studs might crack at the flange. As a result, the nut that attaches the stabilizer bar might lose torque. This might result in noise coming from the front of vehicle while driving on rough surfaces.
SB-20-31-006 R32021-11-08. Service bulletin. On certain Model 3, Model Y, and Model X vehicles, there may be a water ingress path to both front upper control arm ball joints that, over time, could possibly lead to surface corrosion of these ball joints. This may result in a creaking sound coming from the front suspension when steering at low speeds and under high loads. This is exclusively an NVH condition only and does not result in premature failure of the ball joints.
SB-20-31-0122020-12-14. Service bulletin. On certain Model Y vehicles, the Front Upper Control Arm (FUCA) to steering knuckle fastener for both LH and RH sides of the front suspension might be loose, or the FUCA to steering knuckle nut(s) might be missing altogether.
SB-20-31-0042020-09-08. Service bulletin. Certain Model 3 vehicles were manufactured with LH front damper assemblies that do not meet internal specifications, which may result in elevated NVH (Noise, Vibration, and Harshness) from the front of the vehicle.
SB-20-31-0052020-09-08. Service bulletin. Certain Model 3 vehicles were manufactured with RH front damper assemblies that do not meet internal specifications, which may result in elevated NVH (Noise, Vibration, and Harshness) from the front of the vehicle.
SB-20-31-0012020-08-10. Service bulletin. Some Model S and Model X vehicles might have front stabilizer bars with improperly vulcanized bushings that make a squeak noise when driving over road imperfections.
SB-20-17-0042020-04-06. Service bulletin. On certain Model X vehicles, the main front body harness might contact the RH front upper control arm.
SB-20-31-0022020-04-06. Service bulletin. On some Model 3 vehicles, the LH and/or RH rear damper top mount bolts were not fastened according to internal specifications and may create noise, vibration, and harshness.