October 25, 2021 NHTSA CAMPAIGN NUMBER: 21V834000
Side Curtain Air Bag May Be Twisted/FMVSS 214, 226
A twisted side curtain air bag may improperly deploy, increasing the risk of injury or occupant ejection during a crash.
NHTSA Campaign Number: 21V834
Manufacturer Tesla
, Inc.
Components AIR BAGS
Potential Number of Units Affected 2
Summary
Tesla
, Inc. (Tesla
) is recalling certain 2020-2021 Model 3 vehicles. The left and/or right side curtain air bag may have been improperly secured to the roof rail, which could result in a twisted air bag. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 214, “Side Impact Protection” and 226, “Ejection Mitigation.”
Remedy
Tesla
Service will inspect and realign the left and right side curtain air bag as necessary, free of charge. Owner notification letters were mailed December 23, 2021. Owners may contact Tesla
customer service at 1-877-798-3752. Tesla
’s number for this recall is SB-21-20-006.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Check if your Tesla has a Recall
Condition
On certain Model 3 vehicles, the LH and/or RH curtain side airbag(s) may have been improperly secured to the interior rail roof during installation.
Correction
Inspect the vehicle for symptoms related to the condition. If symptoms are present, reinstall and re-secure the curtain side airbags to correct specifications.
| Correction Description | Correction | Time |
| Inspect LH And RH Curtain Airbags; Both Curtain Airbags Already Installed Correctly | S012120006 | 0.55 |
| Inspect LH And RH Curtain Airbags; Reinstall LH Curtain Airbag Correctly; RH Curtain Airbag Already Installed Correctly | S022120006 | 0.90 |
| Inspect LH And RH Curtain Airbags; Reinstall RH Curtain Airbag Correctly; LH Curtain Airbag Already Installed Correctly | S032120006 | 0.90 |
| Inspect LH And RH Curtain Airbags; Reinstall LH And RH Curtain Airbags Correctly | S042120006 | 1.10 |
Procedure
1. Remove the headliner (refer to Service Manual procedure 15203101 or 15203111).
2. Inspect the anti-twist printed lines (Figure 1) along the entire LH curtain airbag, from the bottom of the A-pillar (Figure 2) to the end of the C-pillar (Figure 3). Make sure that the printed lines are parallel and facing the interior cabin.
- If the printed lines are parallel and facing the interior cabin (Figures 1, 2, and 3), skip to step 5.
- If the printed lines are twisted (not parallel) (Figures 4 and 5), continue to step 3.
3. Remove the LH curtain airbag (refer to Service Manual procedure 20012002).
4. Adjust the curtain airbag so that the anti-twist printed lines are parallel (Figures 2 and 3), and then continue to step 5
NOTE: Make sure the anti-twist printed lines are lined up correctly as shown (Figures 2 and 3).
5. Inspect the anti-twist printed lines (Figure 1) along the entire RH curtain airbag, from the bottom of the A-pillar (Figure 2) to the end of the C-pillar (Figure 3). Make sure that the printed lines are parallel and facing the interior cabin.
- If the printed lines are parallel and facing the interior cabin (Figures 1, 2, and 3), no further action is necessary. Continue to step 6.
- If the printed lines are twisted (not parallel) (Figures 4 and 5), perform steps 3 and 4 for the RH curtain airbag, and then continue to step 6.
6. Install the LH and/or RH curtain airbag(s), if removed (refer to Service Manual procedure 20012002).
7. Install the headliner (refer to Service Manual procedure 15203101 or 15203111).
Chronology :
– Beginning on or about August 17, 2021, the Factory Quality team detected a twisted right-hand curtain side airbag on a U.S. Model 3, using the automated vision system on the manufacturing line. The Production Quality and Process Engineering team confirmed that a non-conformance was generated to inspect and, if necessary, repair the twisted condition. The non-conformance was reported as closed prior to factory gating.
– The Production Quality and Process Engineering team commenced an engineering study to confirm production records of the Model 3. Tesla
Service inspected the vehicle and discovered a twisted right-hand curtain side airbag. The team determined that the non-conformance on the vehicle was closed without a full repair and repair confirmation.
– From late August to October 2021, the team conducted an investigation into all Model 3 production records, including images captured by vision inspection, repair records and repair confirmation notes. This investigation identified two additional VINs in the U.S., the records from which Tesla
could not conclusively determine the left- and right-curtain side airbags were not twisted.
– On October 18, 2021, a recall determination was made.
2 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| TESLA | MODEL 3 | 2020-2021 |
6 Associated Documents
Recall Acknowledgement
RCAK-21V834-1999.pdf 645.792KB
Noncompliance Notice 573 Report
RCLRPT-21V834-2010.PDF 214.088KB
Remedy Instructions and TSB
RCRIT-21V834-7467.pdf 421.351KB
Recall 573 Report – 12/15/2021
RCLRPT-21V834-7034.PDF 214.324KB
Owner Notification Letter(Part 577)
RCONL-21V834-5396.pdf 18.585KB
Recall Quarterly Report #1, 2021-4
RCLQRT-21V834-3030.PDF 211.141KB
Latest Recalls Documents
- [Easy to Use—Work Out of the Box] + [FOXWELL 2026 New Version] FOXWELL NT604 Elite scan tool is the 2026 new version from FOXWELL, designed for car owners who want to figure out the cause of issues before fixing car problems by scanning common systems like ABS, SRS, engine, and transmission. The NT604 Elite obd2 scanner diagnostic tool comes with the latest software—no need to waste time downloading software first. Plug the scanner into the OBDII port with OBDII cable to start the diagnosis.
- [Affordable] + [Reliable Car Health Monitor] Will you be confused what happens when the warning light of ABS/SRS/transmission/check engine flashes? Instead of taking your cars to dealership, this FOXWELL scanner will help you do a thorough scanning and detection for your cars and pinpoint the root cause. Note:The device is a diagnostic tool, not a repair tool. To turn off a warning light, you must first physically repair the issue causing it. Only then can the scanner be used to clear the corresponding fault code.
- [5 in 1 Car Diagnostic Scanner] Compared with obd scanners (50-100), NT604 Elite code scanner not only includes their OBDII diagnosis but also serves as ABS/SRS scanner, transmission and check engine code reader. When it’s an odb2 scanner, you can use it to check if your car is ready for annual test through I/M readiness menu. In addition, live data stream, built-in DTC library, data play back and print, all these features are a big plus for it. Note: doesn't support maintenance functions like reset or relearn. For the SRS system, NT604 Elite can read and clear common fault codes not caused by a crash, but crash/collision data cannot be cleared.
- [Fantastic AUTOVIN] + [No extra software fee] Through the AUTOVIN menu, this NT604 Elite car scanner allows you to get your V-IN and vehicle info rapidly, no need to take time to find your V-IN and input one by one. What's more, the NT604 Elite ABS SRS scanner supports 60+ car brands from worldwide (America/Asia/Europe). You don’t need to pay extra software fee. AUTOVIN may not work on some older vehicles or certain vehicle brands. If AUTOVIN fails, please input the vin code manually or go to the Diagnostic Menu to select your vehicle model.
- [Solid protective case KO plastic carrying bag] + [Lifetime update] Almost all same price-level car scanner diagnostic tool only offers plastic bag to hold the scanner.However, NT604 Elite automotive scanner is equipped with solid protective case, preventing your obd2 scanner from damage. Then you don’t need to pay extra money to buy a solid toolbox.
- OBD2 SCANNER FOR ALL SYSTEMS – The INNOVA SD35 is a tablet-based OBD2 scanner designed for advanced diagnostics. Read and clear check engine light, ABS, SRS, and TPMS codes, plus test your car battery and alternator to prevent unexpected failures. Vehicle coverage may vary. Please use Innova’s Coverage Checker to verify compatibility.
- ALL-SYSTEM DIAGNOSTICS & LIVE DATA – Unlike basic code readers, this OBD2 scanner for all vehicles scans engine, transmission, ABS, SRS, and more. Get real-time live data, including RPM, fuel trims, temperature readings, and oxygen sensor performance.
- OBD2 TABLET WITH USER-FRIENDLY INTERFACE – This automotive scan tool features a high-resolution display, making vehicle diagnostics faster and easier.
- ADVANCED TPMS, OIL RESET & SERVICE FUNCTIONS – Perform TPMS sensor checks, oil light reset, and other service resets with ease This professional diagnostic tool provides comprehensive vehicle maintenance capabilities in one device.
- WIDE VEHICLE COVERAGE (1996 & NEWER CARS & TRUCKS) – This OBD2 scanner Bluetooth tablet is compatible with Toyota, Ford, Honda, Chevrolet, Nissan, Dodge, and more. However, feature coverage may vary. Please use Innova's Coverage Checker to verify coverage.
- 【Reset ABS/SRS/Transmission/Engine Lights】 More than an check engine code reader, OBDMATE OM901 obd2 scanner performs comprehensive diagnostics for the 4 most-used systems (ABS/SRS/Engine/Transmission). It quickly clears fault codes, turns off warning lights, read data stream and auto VIN.
- 【3.5" Handheld Scanner with 4 System Diagnose】 3.5" Super large TFT screen equipped displays an intuitive menu and clear readings of various sensors from ABS, SRS, ECM and TCM systems. It arrived with a silicone protective case and hard-shell carrying case, ensuring long-lived durability and drop resistance. The car diagnostic tool is plug-to-play designed, plug it and get diagnosis started without any batteries or updates required.
- 【One-Click I/M Readines&Full OBD2 Functions】 Press F1 to get an intuitive corloured form about whether various emissions-related systems on the vehicle are operating properly. Help you get smog-check ready quickly. OM901 car scanner supports all essential OBD2 functions you need: read & clear codes, view freeze frame, read I/M readiness, retrieve VIN, live data stream (with graphing display), O2 sensor test, onboard monitoring mode, and EVAP leak test.
- 【Battery Voltage Check&DLC Pin Test】 It allows you to monitor battery health by testing current battery voltage. Plus, this obd2 diagnostic tool features DLC 16-PIN test to check current voltage of every pin.
- 【Automotive Scanner Diagnostic Kit】 The package comes with 1 car scanner, 1 USB-type c cable, 1 hard storage bag and 1 user manual(en). Free to update without any hidden fees. 5 languanges available in setting including English, French, Italian, German and Espanish. Valuable and Portable, making it a great tool kit for car owners, DIY enthusiasts, and professional mechanics.
- [All System Diagnostics, Professional-Level Scanner] - BLCKTEC 460T is the ultimate OBD2 diagnostic tool for home mechanics and professionals. It supports all 10 OBD2 modes, reads and clears Engine/Transmission/ABS/SRS codes, performs All-System Diagnostics, offers workshop reset tools, and provides real-time live data. It helps you pinpoint issues, assess your car's condition, and prepare for SMOG checks with ease. NOTE: Function availability depends on your vehicle. Before you buy, be sure to use the Compatibility Checker on BLCKTEC website or contact our customer support to verify that the features you need are supported for your vehicle’s specific year, make, and model.
- [12+ Most Popular Reset Functions] - BLCKTEC 460T OBD2 scanner offers 12+ dealer-level service functions, including Oil Maintenance Reset, ABS Bleeding, EPB Reset, SAS(Steering Angle Sensor) Recalibration, DPF(Diesel Particulate Filter) Reset, Throttle Body Relearn, Battery Reset/Initialization, TPMS Relearn, Transmission Reset, Fluid Change Reset, Maintenance Reset and more, enabling you to perform workshop services like a pro. NOTE: Function availability depends on your vehicle. Be sure to use the Compatibility Checker on BLCKTEC website to verify that the features you need are supported for your vehicle.
- [Real-Time OBD2 and OEM Live Data, Freeze Frame Data] - BLCKTEC 460T helps diagnose vehicle issues when warning lights like Check Engine Light or ABS/SRS Light appear. It offers detailed DTC info, ECU Freeze Frame Data, and real-time OBD2 and advanced OEM live data, including Engine, Transmission, ABS, SRS, and more, making it easy to diagnose and resolve vehicle problems. You can view, graph, record, replay, and overlay up to four live data streams in a single graph for better analysis.
- [AutoVIN, AutoReLink, AutoScan, 3X Faster] - Equipped with AutoVIN technology, 460T automatically retrieves the VIN to save you time. Its AutoScan and AutoReLink features scan all of the vehicle's ECUs and detect any fault codes immediately after you plug the scanner into the vehicle's OBD2 port - no button presses required. Additionally, it regathers DTC and I/M readiness information every 30 seconds, simplifying monitor tests. 460T's advanced technology makes it 3X faster than other products.
- [Get RepairSolutions2, the #1 Auto Repair App for Free] - When paired with RepairSolutions2(RS2) App, 460T becomes even more powerful. RS2's Verified Fix Database built by master technicians, provides the parts needed for the repair. Additionally, RS2 gives you access to OEM warranty info, maintenance schedules, TSB, and dealership recall info, making car care easier than ever. RS2 is free with no subscription fees and it stores your car scan reports in the cloud, allowing you to access, share, or print them anytime and anywhere.
- ✔️【Professional SRS Reset for 1994-2003 BMW】 Designed specifically for classic BMW models (1994-2003). This B800 scanner reads & clears SRS airbag fault codes, turns off the warning light, and saves you a costly dealer visit. Confirmed compatible with: E36, E46 (EXCEPT 2001 330i), E34, E38, E39, Z3, and X5 (E53). NOT compatible with any BMW built before 1994 or after 2003.
- ✔️【Important: Two Different Connection Ports – Read Before Use】 To avoid “not working” issues, please note: For 1994–2000 BMWs (most E36, E34, Z3, early E39), the SRS diagnostic port is a round 20-pin connector under the hood. You MUST use the included 16-pin to 20-pin adapter cable. For 2000–2003 models (late E46, E39, X5), use the standard OBD-II port inside the cabin. Incorrect connection is the #1 reason for “incompatibility” reports.
- ✔️【Read & Clear Fault Codes in Minutes】 Quickly diagnose why your SRS light is on. The scanner accurately reads fault codes from airbag and seatbelt pretensioner systems. With one button press, clear the codes and reset the SRS warning light in seconds. No expensive dealer tools needed.
- ✔️【User-Friendly for DIYers – No Mechanic Required】 Easy operation with an intuitive button layout: ‘Enter’ to confirm, ‘Scroll’ to navigate. The clear LCD screen shows results instantly. Includes a step-by-step manual (revised for clarity) to guide you through the entire reset process.
- ✔️【Reliable Support with 1-Year Warranty】 We stand behind the quality of our B800 scanner. It comes with a 1-Year Hassle-Free Warranty. If you have any questions or need support, please contact us with your Order ID, and our dedicated team will assist you promptly.
SEOCONTENT-START
SB-21-20-006 Page 1 of 3 _ Tesla
, Inc. Service Bulletin Inspect Curtain Airbags SB-21-20-006 October 26, 2021 Classification Section/Group Mobile Service Recall Bulletin 20 – Safety and Restraint Can Perform (where permitted) Model Year Model Country/Region Version 2020 – 2021 Model 3 Denmark, Germany, Norway, South Korea, United Kingdom, United States All The model(s) and model year(s) listed are a general approximation of the affected VIN list. Refer to the VIN/Bulletin Tracker or Customer/Vehicle profile to determine applicability of this bulletin for a particular vehicle. Recall Bulletin: Recall Bulletins are mandatory service procedures that must be carried out by Tesla
-certified Service Centers. Recall work performed by uncertified technicians could lead to unsafe conditions or voided warranty provisions. Condition On certain Model 3 vehicles, the LH and/or RH curtain side airbag(s) may have been improperly secured to the interior rail roof during installation. Correction Inspect the vehicle for symptoms related to the condition. If symptoms are present, reinstall and re-secure the curtain side airbags to correct specifications. Correction Description Correction Time Inspect LH And RH Curtain Airbags; Both Curtain Airbags Already Installed Correctly S012120006 0.55 Inspect LH And RH Curtain Airbags; Reinstall LH Curtain Airbag Correctly; RH Curtain Airbag Already Installed Correctly S022120006 0.90 Inspect LH And RH Curtain Airbags; Reinstall RH Curtain Airbag Correctly; LH Curtain Airbag Already Installed Correctly S032120006 0.90 Inspect LH And RH Curtain Airbags; Reinstall LH And RH Curtain Airbags Correctly S042120006 1.10 SB-21-20-006 Page 2 of 3 _ Procedure 1. Remove the headliner (refer to Service Manual procedure 15203101 or 15203111). 2. Inspect the anti-twist printed lines (Figure 1) along the entire LH curtain airbag, from the bottom of the A-pillar (Figure 2) to the end of the C-pillar (Figure 3). Make sure that the printed lines are parallel and facing the interior cabin. • If the printed lines are parallel and facing the interior cabin (Figures 1, 2, and 3), skip to step 5. • If the printed lines are twisted (not parallel) (Figures 4 and 5), continue to step 3. Figure 1 – LH curtain airbag; RH similar Figure 2 – LH curtain airbag, front view; RH similar Curtain airbag Anti-twist printed lines A-pillar Curtain airbag Anti-twist printed lines SB-21-20-006 Page 3 of 3 For feedback on the accuracy of this document, email ServiceBulletinFeedback@tesla
.com Figure 3 – LH curtain airbag, rear view; RH similar Figure 4 – Twisted curtain airbag; LH shown, RH similar Figure 5 – Twisted curtain airbag; LH shown, RH similar 3. Remove the LH curtain airbag (refer to Service Manual procedure 20012002). 4. Adjust the curtain airbag so that the anti-twist printed lines are parallel (Figures 2 and 3), and then continue to step 5 NOTE: Make sure the anti-twist printed lines are lined up correctly as shown (Figures 2 and 3). 5. Inspect the anti-twist printed lines (Figure 1) along the entire RH curtain airbag, from the bottom of the A-pillar (Figure 2) to the end of the C-pillar (Figure 3). Make sure that the printed lines are parallel and facing the interior cabin. • If the printed lines are parallel and facing the interior cabin (Figures 1, 2, and 3), no further action is necessary. Continue to step 6. • If the printed lines are twisted (not parallel) (Figures 4 and 5), perform steps 3 and 4 for the RH curtain airbag, and then continue to step 6. 6. Install the LH and/or RH curtain airbag(s), if removed (refer to Service Manual procedure 20012002). 7. Install the headliner (refer to Service Manual procedure 15203101 or 15203111). Curtain airbag Anti-twist printed lines C-pillar Curtain airbag Curtain airbag
**************************************************************************************************************
3500 Deer Creek Road Palo Alto CA 94304 IMPORTANT SAFETY RECALL <Date> <Name> <Address> <Address 2> (if applicable; if not, remove this line) <City, State, ZIP> This notice applies to your vehicle, <VIN> NHTSA Recall No: 21V-834 Dear Tesla
Owner, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Tesla
, Inc., has decided that certain Model Year 2020-2021 Model 3 vehicles fail to conform to Federal Motor Vehicle Safety Standard Nos. 214 (“Side Impact Protection”) and 226 (“Ejection Mitigation”). Our records show that you are the owner of a vehicle affected by this action. REASON FOR THIS RECALL The left and/or right side curtain air bag may have been improperly secured to the roof rail, which could result in a twisted air bag. A twisted side curtain air bag may not deploy properly, increasing the risk of injury or occupant ejection during a crash. WHAT TESLA
WILL DO Tesla
Service will inspect and realign the left and right side curtain air bag as necessary, free of charge. WHAT YOU SHOULD DO Please schedule a service appointment through your Tesla
mobile app. Alternatively, if you wish to contact your nearest Tesla
Service Center or require technical assistance, please visit www.tesla.com/findus or call 1-877-79- TESLA
(1-877-798-3752). For awareness, the appointment will take approximately one hour to perform both the inspection and repair, if necessary. If you believe that Tesla
has failed or is unable to remedy this defect without charge or within a reasonable time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, DC 20590, by calling 1-888-327-4236 (TTY: 1-800-424-9153), or by visiting www.safercar.gov. Federal law requires any lessor who receives a notification of a determination of a noncompliance pertaining to any leased motor vehicle to send the notice to the lessee within 10 days. Thank you for being a Tesla
customer. We are committed to ensuring that your vehicle provides the highest possible level of safety. TESLA
, INC.
SEOCONTENT-END
This product presentation was made with AAWP plugin.






