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Service bulletin SB-20-16-004

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 id10177031
Published by NHTSA2020-07-06
Manufacturer's numberSB-20-16-004
Manufacturer's date2020-06-23
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Certain Model 3 and Model Y vehicles may have a loosened fastener inside the HV battery assembly, which could cause the HV battery to power down.

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

Electrical system

Vehicles listed
TESLA MODEL 32020
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
20244272024-07-25. Electrical
24V5540002024-07-24. ELECTRICAL SYSTEM:SOFTWARE; LATCHES/LOCKS/LINKAGES:HOOD:LATCH
24V1530002024-02-27. FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:SOFTWARE
24V0510002024-01-30. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
23V8380002023-12-12. ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:SOFTWARE
22V2630002022-04-18. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
22V2350002022-04-12. ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT
22V0630002022-02-04. FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:SOFTWARE
22V0500002022-02-02. ELECTRICAL SYSTEM:SOFTWARE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES
22V0450002022-02-01. SEAT BELTS:FRONT; ELECTRICAL SYSTEM:SOFTWARE

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
SB19-20-003-R32023-12-18. Service bulletin. On some Model 3 and Model Y vehicles, the Occupant Classification System (OCS) signal might be affected by electrical interference in the seat electrical harness, causing the airbag indicator to display on the touchscreen.
SB-21-18-002-R62022-11-28. Service bulletin. Certain Model 3 and Model Y vehicles may be equipped with refrigerant pressure/temperature (P/T) sensors in the heat pump that can fault over time.
SB22330052022-06-13. Service bulletin. Some Model Y vehicles were built without a hydraulic control unit (HCU) wake-up wire, and in rare circumstances, braking and stability control related alerts may appear on the instrument cluster and touchscreen during the vehicle power-on process. Such faults can typically be corrected and the affected functionality restored with a vehicle power cycle.
SB22330032022-06-13. Service bulletin. Some Heat Pump Model 3 vehicles were built without a hydraulic control unit (HCU) wake-up wire, and in rare circumstances, braking and stability control related alerts may appear on the instrument cluster and touchscreen during the vehicle power-on process. Such faults can typically be corrected and the affected functionality restored with a vehicle power cycle.
SB21170072022-05-31. Service bulletin. On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the RH side repeater camera may lose electrical continuity over time, resulting in premature failure of the camera.
SB21170062022-05-31. Service bulletin. On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the LH side repeater camera may lose electrical continuity over time, resulting in premature failure of the camera.
SB22170042022-05-02. Service bulletin. On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the LH and RH side repeater cameras may lose electrical continuity over time, resulting in premature failure of the cameras.
SB21170072022-02-28. Service bulletin. On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the RH side repeater camera may lose electrical continuity over time, resulting in premature failure of the camera.
SB21170062022-02-28. Service bulletin. On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the LH side repeater camera may lose electrical continuity over time, resulting in premature failure of the camera.
SB-20-17-010 R12020-12-14. Service bulletin. On certain Model 3 vehicles, an open electrical circuit or short to ground near connectors X950 or X952 may display a restart alert on the touchscreen, or prevent the vehicle from starting altogether.