WenmarOpen by Wenmar Pro

Service bulletins for the 2021 Tesla Model Y

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.

95 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
SB-23-10-0032023-05-08. Service bulletin. STRUCTURE; STRUCTURE:BODY:HATCHBACK/LIFTGATE. On some Model Y vehicles, water may have leaked inside the rear trunk area through the liftgate assembly.
SB22330062023-04-24. Service bulletin. POWER TRAIN; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). 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.
SB22330052023-04-24. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); POWER TRAIN. 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.
SB-23-20-002 R22023-04-10. Service bulletin. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION; SEATS. Certain Model 3 and Model Y vehicles may need a different Occupant Classification System (OCS) installed in the front passenger seat before servicing its subcomponents.
SB-23-20-002 R12023-04-10. Service bulletin. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION. Certain Model 3 and Model Y vehicles may need a different Occupant Classification System (OCS) installed in the front passenger seat before servicing its subcomponents.
SB-23-20-0022023-04-10. Service bulletin. SEATS. Certain Model 3 and Model Y vehicles may need a different Occupant Classification System (OCS) installed in the front passenger seat before servicing its subcomponents.
SB-21-18-002-R62022-11-28. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY THERMAL:MANAGEMENT:SOFTWARE. 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.
SB-22-17-0142022-11-28. Service bulletin. TRAILER HITCHES; STRUCTURE. Certain Model Y vehicles that received a tow hitch retrofit in Service may require a replacement LH Body Controller Module.
SB22330062022-06-13. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. 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.
SB22330052022-06-13. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE; ELECTRICAL SYSTEM:WIRING. 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.
SB21160032022-05-31. Service bulletin. HYBRID PROPULSION SYSTEM. Certain Model 3 and Model Y vehicles were manufactured with high voltage (HV) batteries having cell separators that do not meet Tesla?s internal standards of quality, potentially resulting in a reduction of range.
SB2118002R52022-05-02. Service bulletin. FUEL SYSTEM, GASOLINE. 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.
SB21160032022-02-28. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Certain Model 3 and Model Y vehicles were manufactured with high voltage (HV) batteries having cell separators that do not meet Tesla?s internal standards of quality, potentially resulting in a reduction of range.
SB-21-18-002 R32021-11-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. 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.
SB-21-12-0032021-05-24. Service bulletin. VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:BODY:DOOR; EQUIPMENT. Some Model Y vehicles equipped with auto-dimming door mirror glass have difficulty adjusting the LH door mirror to extreme vertical angles.
SB-21-17-0032021-05-24. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EXTERIOR LIGHTING:TAIL LIGHTS. On some Model Y vehicles, the color of the red band that surrounds the LH and RH taillights do not match because the vehicle has Revision D for the LH taillight (Figure 1) which has a darker tint, and the right side has Revision C (Figure 2) which has a lighter tint. This is only a cosmetic issue that does not affect the performance of the taillights.
SB-21-18-001 R12021-04-26. Service bulletin. FUEL SYSTEM, GASOLINE. 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.
SB-21-18-002 R12021-04-26. Service bulletin. FUEL SYSTEM, GASOLINE. 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.
SB-21-18-0022021-04-26. Service bulletin. FUEL SYSTEM, GASOLINE. 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.
SB-21-18-0012021-03-15. Service bulletin. ENGINE AND ENGINE COOLING. Some 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.