August 13, 2021 NHTSA CAMPAIGN NUMBER: 21V639000
Air Bag Control Unit Software Malfunction
Air bags and seat belts that do not function properly can increase the risk of injury in a crash.
NHTSA Campaign Number: 21V639
Manufacturer Mercedes-Benz
USA, LLC
Components AIR BAGS
Potential Number of Units Affected 66
Summary
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLB250 vehicles. In the event of a crash, the air bag control unit software may not activate the front seat belts and front passenger air bag properly.
Remedy
Dealers will update the air bag control unit software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
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 Mercedes-Benz has a Recall
| TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers | FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services |
| RE: Recall Campaign Initial Notification Update Airbag Control Unit Parameters MY20 GLB-Class (247 platform) | DATE: 8/20/2021 |
IMPORTANT RECALL CAMPAIGN INFORMATION
Please see the attached documents related to the campaign listed above.
Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FORMERCEDES.
Sincerely,
Gregory Gunther
Department Manager, Vehicle Compliance & Analysis
| Campaign No. : | NHTSA ID | Campaign Desc. : | Update Airbag Control Unit Parameters | |
| TBA | 21V639 | 21P2197420 | ||
| This is to notify you of a new Recall Campaign to update the airbag control unit parameters on 66 Model Year (“MY”) 2020 GLB-Class (247 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on August 20, 2021. | ||||
| Background | ||||
| Issue | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020 GLB-Class (247 platform) vehicles, the airbag control unit software might not meet current production specifications. In this case, the activation timing of the seat belt force limiters (driver and front passenger seats) and the front passenger airbag might deviate from their specifications. Thus, in the event of a frontal collision with activation of the restraint systems, the risk of injury for the occupants might increase. | |||
| What We’re Doing | MBUSA is conducting a voluntary recall. An authorized Mercedes-Benz dealer will update the airbag control unit parameters. | |||
| Parts | Remedy is not available at this time. An additional notification will be sent once the remedy is available. | |||
| Vehicles Affected | ||||
| Vehicle Model Year(s) | 2020 | |||
| Vehicle Model | GLB-Class | |||
| Vehicle Populations | ||||
| Total Recall Population | 66 | |||
| Total Vehicles in Dealer Inventory | 1 | |||
| Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY20 GLB-Class vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo. Once the repair is complete, the vehicle may be sold or leased.
Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s)
Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY20 GLB-Class vehicles covered by this notification until the vehicle has been repaired.
| ||||
| Next Steps/Notes | ||||
| Customer Notification Timeline | Customer letters will be mailed after the remedy becomes available. | |||
| AOMS/SOMS | AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. | |||
| Rental Fleet Partners | This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. | |||
| While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES. | ||||
| TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers | FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services |
| RE: Recall Campaign Launch Notification Update Airbag Control Unit Parameters MY20 GLB-Class (247 platform) | DATE: September 3rd, 2021 |
IMPORTANT RECALL CAMPAIGN UPDATE
Please see the attached documents related to the campaign listed above.
Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FORMERCEDES.
Sincerely,
Gregory Gunther
Department Manager, Vehicle Compliance & Analysis
| Recall Campaign Launch Notification | September 3, 2021 | |||
| Campaign No. : | NHTSA ID | Campaign Desc. : | Update Airbag Control Unit Parameters | |
| 2021080019 | 21V639 | 21P5499007 | ||
| This is to notify you of a new Recall Campaign to update the airbag control unit parameters on 66 Model Year (“MY”) 2020 GLB-Class (247 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on September 3, 2021. | ||||
| Background | ||||
| Issue | Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020 GLB-Class (247 platform) vehicles, the airbag control unit software might not meet current production specifications. In this case, the activation timing of the seat belt force limiters (driver and front passenger seats) and the front passenger airbag might deviate from their specifications. Thus, in the event of a frontal collision with activation of the restraint systems, the risk of injury for the occupants might increase. | |||
| What We’re Doing | MBUSA is conducting a voluntary recall. An authorized Mercedes-Benz dealer will update the airbag control unit parameters. | |||
| Parts | The remedy is available and can be performed. Please note that the estimated replacement rate is 100%. | |||
| Vehicles Affected | ||||
| Vehicle Model Year(s) | 2020 | |||
| Vehicle Model | GLB-Class | |||
| Vehicle Populations | ||||
| Total Recall Population | 66 | |||
| Total Vehicles in Dealer Inventory | 0 | |||
| Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY20 GLB-Class vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Xentry. Once the repair is complete, the vehicle may be sold or leased.
Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s)
Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY20 GLB-Class vehicles covered by this notification until the vehicle has been repaired.
| ||||
| Next Steps/Notes | ||||
| Customer Notification Timeline | Customer letters will be mailed on September 17th, 2021 | |||
| AOMS/SOMS | AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. | |||
| Rental Fleet Partners | This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer. | |||
| While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES. | ||||
Campaign No. 2021080019, September 2021
| TO: | ALL MERCEDES-BENZ CENTERS |
| SUBJECT: | Model GLB-Class vehicles (247 platform) Model year 2020 Update Airbag Control Unit Parameters |
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2020 GLB-Class (247 platform) vehicles, the airbag control unit software might not meet current production specifications. In this case, the activation timing of the seat belt force limiters (driver and front passenger seats) and the front passenger airbag might deviate from their specifications. Thus, in the event of a frontal collision with activation of the restraint systems, the risk of injury for the occupants might increase. An authorized Mercedes-Benz dealer will update the airbag control unit parameters.
Prior to performing this Campaign:
- VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.
- Please review the entire Campaign bulletin and follow the repair procedure exactly as described.
Please note that Recall Campaigns do not expire and may also be performed on a vehicle with a vehicle status indicator.
Approximately 66 vehicles are affected.
Order No. P-RC-2021080019
Updating the airbag control unit parameters
Model 247
- Ensure that you are using XENTRY Diagnosis version BD/DVD (06/2021) or higher.
- Before starting the work procedure, install the current version of all add-ons in XENTRY Diagnosis.
- Make sure to follow the operation steps exactly as described in XENTRY Diagnosis.
- Use a charger to ensure a sufficient power supply to the vehicle on-board electrical system battery (greater than 12.5 V).
- If XENTRY Diagnosis is already connected to the vehicle, start with operation step 2.
If two or more software updates or SCN codings are performed during one workshop visit, operation items 02-4762 and 02-5058 may be invoiced only once for each workshop order.
Work procedure
- Connect XENTRY Diagnosis.
- Update the N2/10 Supplemental Restraint System (SRS) control unit software.
To do this, select menu item “Quick test view ⇒ N2/10 Supplemental Restraint System (SRS) ⇒ Adaptations ⇒ Configuration ⇒ Manual Settings ⇒ Check control unit software ⇒ Action 4830 2019 0132”. Then follow the user guidance in XENTRY Diagnosis.
- Disconnect XENTRY Diagnosis.
The following allowable labor operation should be used when submitting a warranty claim for this repair:
Warranty Information
Operation:
(02-9334) Update Supplemental Restraint System (SRS) control unit software (with XENTRY Diagnosis connected)
(02-4762)* Connect/disconnect diagnosis system (XENTRY Diagnosis)
(02-5058)* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected)
| Damage Code | Operation Number | Labor Time (hrs.) |
| 54 990 07 | 02-9334 | 0.1 |
| 02-4762* | 0.1 | |
| 02-5058* | 0.1 |
* Operation item may only be invoiced once for each workshop order!
Note
Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.
P-RC-2021080019
SEOCONTENT-STARTMercedes-Benz USA, LLC Mercedes-Benz USA, LLC A Company One Mercedes-Benz Drive Sandy Springs, GA 30328 Phone (770) 705-0600 September, 2021 2021080019 Dear Mercedes-Benz Owner: IMPORTANT SAFETY RECALL 2021080019 This notice applies to your vehicle, VIN: Update Airbag Control Unit Parameters NHTSA Recall #21V639 • A remedy is available for your vehicle. • Schedule an appointment with your authorized Mercedes-Benz dealer as soon as possible. • This repair will be provided free of charge. This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has decided that a defect, which relates to motor vehicle safety, exists in certain Model Year (“MY”) 2020 GLB-Class vehicles. Our records indicate that your vehicle is included in the affected population of vehicles. What is the CONCERN? What will your DEALER DO? What should YOU DO? To find the most authorized MercedesBenz dealer from your smartphone, scan the QR code to the left. Information for Owners On certain MY2020 GLB-Class vehicles, the airbag control unit software might not meet current production specifications. In the event of a frontal crash where the appropriate restraint systems are activated, the activation timing of the seat belt force limiters (driver and front passenger seats) and the front passenger airbag might not function properly, potentially resulting in reduced seat belt and airbag restraint performance, which could increase the risk of injury for occupants. An authorized Mercedes-Benz dealer will update the airbag control unit software on the affected vehicles. This service will be provided free of charge. We are dedicated to always delivering the best customer experience, and respect for your time is a top priority. While the minimum repair time can be less than 1 hour, your dealer can provide you with a better estimate of the overall time for this service visit. As a matter of normal service process, an authorized Mercedes-Benz dealer will also check for other repair measures that might be applicable to your vehicle which may increase the required working time. For additional information and to schedule an appointment, please contact your preferred authorized MercedesBenz dealer at your earliest convenience. To locate authorized dealers see www.MBUSA.com/recall. Please mention you are scheduling an appointment to update the airbag control unit parameters under Recall Campaign# 2021080019. You may be asked for your 17-digit Vehicle Identification Number (VIN) which for your convenience is located above your name at the top of this letter. Impacts from COVID-19: Your health and safety remain our top priority. The Mercedes-Benz dealerships remaining open for recall repairs and service are closely following the guidelines set forth by the CDC. Free Mobile Repair at your home or business as well as vehicle pick-up and delivery may be available. Your preferred authorized Mercedes-Benz dealer can confirm availability. In the event that you are no longer the vehicle owner, or have had a change of address, please complete the reverse side and return the updated information in the enclosed envelope. If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first class mail to the lessee within 10 business days to comply with Federal Regulations. A VIN-based recall lookup tool on our MBUSA.com website offers a search feature that will indicate whether a vehicle has been subject to a safety recall, and whether that vehicle has had the free remedy performed. See www.mbusa.com/recall. Should you have any questions or encounter any difficulty regarding this Recall Campaign, please contact an authorized Mercedes-Benz dealer. If for any reason a dealer is unable to remedy your situation, we are always happy to hear from you. Please contact us at 1-(800) FOR-MERCEDES (1-800-367-6372). If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a reasonable amount of time, pursuant to law 49 U.S.C. Chapter 301 , you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https: //www .safercar.gov. We apologize for any inconvenience this situation may cause you. Sincerely, Mercedes-Benz USA Daimler AG IMPORTANT VIN: If for any reason YOU NO LONGER OWN THIS VEHICLE OR have a CHANGE OF ADDRESS, please COMPLETE THE SECTION BELOW, place in the ENCLOSED ENVELOPE, and DROP IN ANY MAIL BOX. If possible, provide the name and address of the present owner so that we may contact them. 0 EXPORTED 0 LEASE, VEHICLE RETURNED 0 SCRAPPED 0 NEW OWNER INFORMATION Last Name, First Name Str 0 SOLD 0 STOLEN 0 OTHER ———— 0 MY NEW NAME OR ADDRESS IS: I I I I I ■~~ Apt I.______.____._______.___….._______.______._______.______.______._____.______._______.______._______.______._____.___.._______.__…._______.___■ I ■’——‘I~~ City State ZIP I I Email Address Phone (numbers only) Mobile (numbers only) Date Signature **** PLEASE DO NOT DETACH. RETURN COMPLETE LETTER**** DO NOT USE THE ENCLOSED ENVELOPE FOR OTHER CORRESPONDENCESEOCONTENT-END
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
| MERCEDES-BENZ | GLB250 | 2020 |
10 Associated Documents
Remedy Instructions and TSB
RCRIT-21V639-7124.pdf 352.626KB
Recall Quarterly Report #2, 2021-4
RCLQRT-21V639-2231.PDF 211.241KB
Recall Acknowledgement
RCAK-21V639-6604.pdf 645.533KB
Defect Notice 573 Report
RCLRPT-21V639-5814.PDF 214.257KB
Recall 573 Report – AMENDMENT 1
RCLRPT-21V639-6781.PDF 214.259KB
Recall 573 Report – AMENDMENT 2
RCLRPT-21V639-3814.PDF 214.26KB
Manufacturer Notices(to Dealers,etc) – Recall Campaign Launch Notification, Update Airbag Control Unit Parameters MY20 GLB-Class (247 platform)
RCMN-21V639-2500.pdf 287.885KB
Manufacturer Notices(to Dealers,etc)- Recall Campaign Initial Notification Update Airbag Control Unit Parameters MY20 GLB-Class (247 platform)
RCMN-21V639-6065.pdf 518.528KB
ISSUED Owner Notification Letter(Part 577)
RCONL-21V639-2374.pdf 1634.194KB
Recall Quarterly Report #3, 2022-1
RCLQRT-21V639-3638.PDF 211.324KB
Latest Recalls Documents
Mercedes-Benz Reprogramming
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