Software Error in Exit Warning System – 2023 Mercedes-Benz

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-574 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : AUG 11, 2023 NHTSA Recall No. : 23V-574 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 880 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Mercedes-Benz E450 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 173 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Mercedes-Benz E350 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 432 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2023-2023 Mercedes-Benz AMG E63 S Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 2 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-574 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2023-2023 Mercedes-Benz E450 Wagon All Terrain Vehicle Type : LIGHT VEHICLES Body Style : STATIONWAGON Power Train : GAS Descriptive Information : 40 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2023-2023 Mercedes-Benz AMG E63 S Wagon Vehicle Type : LIGHT VEHICLES Body Style : STATIONWAGON Power Train : GAS Descriptive Information : 1 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 6 : 2023-2023 Mercedes-Benz E450 Coupe Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 2 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2023-2023 Mercedes-Benz AMG E53 Coupe Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 3 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-574 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 8 : 2023-2023 Mercedes-Benz E450 Cabriolet Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 4 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 9 : 2023-2023 Mercedes-Benz AMG E53 Cabriolet Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 3 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 10 : 2023-2023 Mercedes-Benz CLS450 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 73 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 11 : 2023-2023 Mercedes-Benz AMG GT53 4-Door Coupe Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 72 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-574 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 12 : 2023-2023 Mercedes-Benz AMG GT43 4-Door Coupe Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 75 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2023 E-Class (213 platform), EClass Coupe/Cabriolet (238 platform), CLS (257 platform) and Mercedes-AMG GT 4-door Coupe (290 platform) vehicles, the exit warning system coding parameters might not meet specifications. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : The exit warning system can provide assistance by warning vehicle occupants of other road users approaching from behind when exiting the parked vehicle. However, due to incorrect coding, the vehicle occupants may not be warned by visual and acoustic cues from the exit warning system. As a result, this could increase the risk of crash or injury when opening the door in certain traffic situations. Description of the Cause : Due to a deviation in the development process, the exit warning system coding parameters might not meet specifications. Identification of Any Warning that can Occur : The driver will not receive a warning due to the nature of the failure mechanism. Involved Components : Component Name 1 : Multimode Radar Software Component Description : Multimode Radar Software Component Part Number : A0009020848 Supplier Identification : Part 573 Safety Recall Report 23V-574 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Manufacturer Name : Mercedes-Benz AG Address : NR Foreign States Country : Germany Chronology : At the end of September 2022, MBAG’s standard quality control testing found that the exit warning system, a subsystem of the Active Blind Spot Assist system, on certain vehicles may not provide visual or acoustic cues to the vehicle occupants before they open their door and a road user approaches the vehicle from behind. MBAG launched an investigation of this deviation. In late 2022, analyses determined that the exit warning system was coded with inaccurate parameters. MBAG then conducted additional analyses to determine potentially affected software versions and equipment variants. In parallel, MBAG initiated a plant rework measure to update the exit warning system coding parameters in potentially affected vehicles that were still in MBAG’s control. Additionally, MBAG identified potentially affected vehicles in the field. During 2023, MBAG conducted internal analyses of the potential effects and safety consequences of the observed issue on the exit warning system as well as the overall Active Blind Spot Assist system. These studies concluded that the inaccurate coding parameters only affected the vehicle’s exit warning system that functions when the vehicle is parked on a street or roadway. MBAG did not identify any effect of this coding issue on other functions of the vehicle’s Active Blind Spot Assist system. On August 4, 2023, MBAG determined that a potential safety risk cannot be ruled out completely and decided to conduct a recall. MBAG is not aware of any warranty claims, field reports, service reports, reports of property damage, death, or injury related to this defect in the U.S.A. Description of Remedy : Description of Remedy Program : An authorized Mercedes-Benz dealer will update the coding parameters of the exit warning system on the affected vehicles. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Updated exit warning system coding parameters. Remedy Part: A 000 902 08 48 – Multimode Radar Software Identify How/When Recall Condition was Corrected in Production : Adjusted coding parameters ensure that this issue can no longer occur from March 21, 2023 onwards. Part 573 Safety Recall Report 23V-574 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on August 18, 2023. Owners will be notified of the voluntary recall campaign before October 10, 2023. A copy of all communications will be provided when available. Planned Dealer Notification Date : AUG 18, 2023 – NR Planned Owner Notification Date : OCT 10, 2023 – NR * NR – Not Reported

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Recall Campaign Initial Notification

DATE: August 18, 2023

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 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-FOR-MERCEDES. Sincerely, Gregory Gunther Senior Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Senior Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Initial Notification Update Exit Warning System Coding Parameters MY23 E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) DATE: August 18, 2023 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Initial Notification August 18, 2023 Campaign No. : NHTSA ID Campaign Desc. : Update Exit Warning System Coding Parameters TBA 23V574 23P5496333 This is to notify you of the new Recall Campaign to update the exit warning system coding parameters on 880 Model Year (“MY”) 2023 E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on August 18, 2023. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2023 E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) vehicles, the exit warning system coding parameters might not meet specifications. The exit warning system can provide assistance by warning vehicle occupants of other road users approaching from behind when exiting the parked vehicle. However, due to incorrect coding, the vehicle occupants may not be warned by visual and acoustic cues from the exit warning system. As a result, this could increase the risk of a crash or injury when opening the door in certain traffic situations. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will update the exit warning system coding parameters on the affected vehicles. Parts Remedy is not available at this time. Vehicles Affected Vehicle Model Year(s) 2023 Vehicle Model E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe Vehicle Populations Total Recall Population 880 Total Vehicles in Dealer Inventory 15 Given this notice, it is a violation of Federal law for a dealer to sell or lease any new 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 NetStar VMI and Xentry Portal. 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 vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Customer letters will be mailed on or before October 10, 2023. 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. Customer Reimbursement Customer reimbursement is not being offered for this campaign. 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.

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Recall Campaign Launch Notification

DATE: August 25, 2023

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis 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 Senior Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Senior Manager, Vehicle Compliance and Analysis, Engineering Services RE: Recall Campaign Launch Notification Update Exit Warning System Coding Parameters MY23 E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) DATE: August 25, 2023 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis Recall Campaign Launch Notification August 25, 2023 Campaign No. : NHTSA ID Campaign Desc. : Update Exit Warning System Coding 2023080005 23V574 23P5496333 Parameters This is to notify you of the Recall Campaign Launch to update the exit warning system coding parameters on 880 Model Year (“MY”) 2023 EClass, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on August 25, 2023. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2023 E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) vehicles, the exit warning system coding parameters might not meet specifications. The exit warning system can provide assistance by warning vehicle occupants of other road users approaching from behind when exiting the parked vehicle. However, due to incorrect coding, the vehicle occupants may not be warned by visual and acoustic cues from the exit warning system. As a result, this could increase the risk of a crash or injury when opening the door in certain traffic situations. What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will update the exit warning system coding parameters on the affected vehicles. Parts The remedy is available and can be performed. Vehicles Affected Vehicle Model Year(s) 2023 Vehicle Model E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe Vehicle Populations Total Recall Population 880 Total Vehicles in Dealer Inventory 15 Given this notice, it is a violation of Federal law for a dealer to sell or lease any new 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 NetStar VMI and Xentry Portal. 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 vehicles covered by this notification until the vehicle has been repaired. Next Steps/Notes Customer Notification Timeline Customer letters will be mailed on September 8, 2023. 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. Customer Reimbursement Customer reimbursement is not being offered for this campaign. 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. 2 Campaign No.2023080005, August 2023 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Various Models Model Year 2023 Update Exit Warning System Coding Parameters Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2023 E-Class, E-Class Coupe/Cabriolet, CLS, and AMG GT 4-Door Coupe (213, 238, 257, and 290 platform) vehicles, the exit warning system coding parameters might not meet specifications. The exit warning system can provide assistance by warning vehicle occupants of other road users approaching from behind when exiting the parked vehicle. However, due to incorrect coding, the vehicle occupants may not be warned by visual and acoustic cues from the exit warning system. As a result, this could increase the risk of a crash or injury when opening the door in certain traffic situations. An authorized Mercedes-Benz dealer will update the exit warning system coding parameters on the affected vehicles. Prior to performing this Campaign: •VMI must be checked before performing campaigns to verify that the campaign is required ona specific vehicle. Always check for any other open campaigns, and perform accordingly. •Please review the entire Campaign bulletin and follow the repair procedure exactly asdescribed. Approximately 880 vehicles are affected. Order No. P-RC-2023080005 2 P-RC-2023080005 Update Exit Warning System Coding Parameters • Always use the latest XENTRY Diagnosis software release with all available add-ons. • Follow the operation steps exactly as described in XENTRY Diagnosis. • Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system (greater than 12.5 V). • If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure step 2. If two or more software updates or SCN codings are performed during a single workshop visit, operation items 02-4762 and 02-5058 may be invoiced only on one of the workshop orders. Work Procedure 1. Connect XENTRY Diagnosis. 2. Perform SCN coding in outer left rear short-range radar control unit. To do this, select menu item “Quick test view → B92/** outer left rear short range radar → Adaptations → Control unit update → Update SCN coding”. Then follow the user guidance in XENTRY Diagnosis. The “Outer right rear short-range radar B92/** is automatically coded with the SCN. 3. Disconnect XENTRY Diagnosis. __________________________________________________________________________________________________ Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Damage Code Operation Number Description Labor Time (hrs.) 54 963 33 02-9446 Perform SCN coding in outer left rear short-range radar control unit (with XENTRY Diagnosis connected) 0.1 02-4762* Connect/disconnect diagnostic system (XENTRY Diagnosis) 0.1 02-5058* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected) 0.1 * Invoice operation item only once for each workshop order. Note: Always check Xentry Operation Time (XOT) for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-574 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mercedes-Benz USA, LLC Submission Date : AUG 25, 2023 NHTSA Recall No. : 23V-574 Manufacturer Recall No. : 2023080005 Manufacturer Information : Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway Jacksonville FL 32218 Company phone : 1-877-496-3691 Population : Number of potentially involved : 880 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Mercedes-Benz E450 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 173 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Mercedes-Benz E350 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 432 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2023-2023 Mercedes-Benz AMG E63 S Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 2 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-574 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 4 : 2023-2023 Mercedes-Benz E450 Wagon All Terrain Vehicle Type : LIGHT VEHICLES Body Style : STATIONWAGON Power Train : GAS Descriptive Information : 40 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2023-2023 Mercedes-Benz AMG E63 S Wagon Vehicle Type : LIGHT VEHICLES Body Style : STATIONWAGON Power Train : GAS Descriptive Information : 1 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 6 : 2023-2023 Mercedes-Benz E450 Coupe Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 2 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2023-2023 Mercedes-Benz AMG E53 Coupe Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 3 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-574 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 8 : 2023-2023 Mercedes-Benz E450 Cabriolet Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 4 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 9 : 2023-2023 Mercedes-Benz AMG E53 Cabriolet Vehicle Type : LIGHT VEHICLES Body Style : 2-DOOR Power Train : GAS Descriptive Information : 3 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 10 : 2023-2023 Mercedes-Benz CLS450 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 73 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 11 : 2023-2023 Mercedes-Benz AMG GT53 4-Door Coupe Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 72 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-574 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 12 : 2023-2023 Mercedes-Benz AMG GT43 4-Door Coupe Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : 75 Vehicles. The recall population was determined through production records. Coding parameters according to specifications. Production Dates : MAR 10, 2022 – MAR 09, 2023 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2023 E-Class (213 platform), EClass Coupe/Cabriolet (238 platform), CLS (257 platform) and Mercedes-AMG GT 4-door Coupe (290 platform) vehicles, the exit warning system coding parameters might not meet specifications. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : The exit warning system can provide assistance by warning vehicle occupants of other road users approaching from behind when exiting the parked vehicle. However, due to incorrect coding, the vehicle occupants may not be warned by visual and acoustic cues from the exit warning system. As a result, this could increase the risk of crash or injury when opening the door in certain traffic situations. Description of the Cause : Due to a deviation in the development process, the exit warning system coding parameters might not meet specifications. Identification of Any Warning that can Occur : The driver will not receive a warning due to the nature of the failure mechanism. Involved Components : Component Name 1 : Multimode Radar Software Component Description : Multimode Radar Software Component Part Number : A0009020848 Supplier Identification : Part 573 Safety Recall Report 23V-574 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Manufacturer Name : Mercedes-Benz AG Address : NR Foreign States Country : Germany Chronology : At the end of September 2022, MBAG’s standard quality control testing found that the exit warning system, a subsystem of the Active Blind Spot Assist system, on certain vehicles may not provide visual or acoustic cues to the vehicle occupants before they open their door and a road user approaches the vehicle from behind. MBAG launched an investigation of this deviation. In late 2022, analyses determined that the exit warning system was coded with inaccurate parameters. MBAG then conducted additional analyses to determine potentially affected software versions and equipment variants. In parallel, MBAG initiated a plant rework measure to update the exit warning system coding parameters in potentially affected vehicles that were still in MBAG’s control. Additionally, MBAG identified potentially affected vehicles in the field. During 2023, MBAG conducted internal analyses of the potential effects and safety consequences of the observed issue on the exit warning system as well as the overall Active Blind Spot Assist system. These studies concluded that the inaccurate coding parameters only affected the vehicle’s exit warning system that functions when the vehicle is parked on a street or roadway. MBAG did not identify any effect of this coding issue on other functions of the vehicle’s Active Blind Spot Assist system. On August 4, 2023, MBAG determined that a potential safety risk cannot be ruled out completely and decided to conduct a recall. MBAG is not aware of any warranty claims, field reports, service reports, reports of property damage, death, or injury related to this defect in the U.S.A. Description of Remedy : Description of Remedy Program : An authorized Mercedes-Benz dealer will update the coding parameters of the exit warning system on the affected vehicles. Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty. How Remedy Component Differs from Recalled Component : Updated exit warning system coding parameters. Remedy Part: A 000 902 08 48 – Multimode Radar Software Identify How/When Recall Condition was Corrected in Production : Adjusted coding parameters ensure that this issue can no longer occur from March 21, 2023 onwards. Part 573 Safety Recall Report 23V-574 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Recall Schedule : Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on August 18, 2023. Owners will be notified of the voluntary recall campaign before October 10, 2023. A copy of all communications will be provided when available. Planned Dealer Notification Date : AUG 18, 2023 – NR Planned Owner Notification Date : OCT 10, 2023 – NR * NR – Not Reported

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