RA-51-1928 – Loose Fasteners on Front Propeller Shaft – 2021 Aston Martin DBX

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-248
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Aston Martin The Americas APR 03, 2024 NHTSA Recall No. : 24V-248 Manufacturer Recall No. : RA-51-1928 Manufacturer Information :
Manufacturer Name : Aston Martin The Americas Address : Banbury Road
Gaydon Warwick, United Kingdom 00 CV35 0DB
Company phone : 999
Population :
Number of potentially involved : 10 Estimated percentage with defect : 12 %
Vehicle Information : Vehicle 1 : 2021-2021 Aston Martin DBX Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Due to a temporary parts shortage between 23 October 2020 and 17 November 2020, up to eleven DBX vehicles intended for sale in the USA were manufactured outside the normal production process. Seven other vehicles were made for other markets in the same period. The build logs for eleven of the US vehicles do not record the tools or torques applied to the front drive unit bolts. Without these records, it cannot be confirmed that proper torque was applied. One of these eleven US vehicles has since been rectified in the field.
Production Dates : OCT 23, 2020 – NOV 17, 2020
VIN Range 1 : Begin : SCFVUJAW6MTV01080 End : SCFVUJAW4MTV01093 Not sequential Description of Defect :
Description of the Defect : Aston Martin have found that the fixings for the front prop shaft and the front differential on 10 vehicles manufactured for sale in the USA do not have a record of being torqued to specification. Aston Martin would like to inspect the affected vehicles and confirm the fixings have been torqued correctly, and if not, to torque to the correct value.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : Loose bolts would likely cause noise and vibration and could result in a
potential loss of front wheel drive. Improper fastening of the front prop shaft could result in the crank position sensor becoming unplugged and the engine stalling.
In one case, the crank position sensor was damaged which will cause the Part 573 Safety Recall Report 24V-248 Page 2 engine to be unable to restart.
Aston Martin has not received any report of an accident or injury caused by this defect.
Description of the Cause : For the affected vehicles there was a shortage of parts available (Front drive unit/differential) on the production line. These vehicles were then moved to rework bays where the affected parts were fitted later. The build logs for these vehicles do not record the tools or torques applied to the front drive unit bolts. Without these records, it cannot be confirmed that proper torque was applied. Identification of Any Warning
that can Occur : There will be noise and vibration and a potential loss of front wheel drive. Involved Components : Component Name 1 : BOLT M12X1.5X100 HEX FLANGE
Component Description : BOLT M12X1.5X100 HEX FLANGE Component Part Number : MY83-E601424-AA Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
573.6 (c)(6) – Chronology of Events Determining the Non-Compliance
1. 26th February 2024 – A fault was discovered on a customer vehicle following a roadside recovery in Switzerland. The bolts for the front prop shaft had become loose, and the loose prop shaft had caused the crank position sensor to become unplugged.
2. This prompted an investigation.
3. The investigation identified a similar occurrence on 4th July 2022.
4. The Company’s Technical Review Group (TRG) met on 5th March 2024 to investigate the concern.
5. The Company’s Critical Concerns Review Group (CCRG) met on 12th March 2024 to assess the concern and recommended the matter should be reviewed by the Recall Committee.
6. The Recall Committee convened on 03/04/2024 and determined that:
a) a potential defect could occur in the relevant vehicle population; The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-248
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
b) this defect could lead to a potential safety risk; and
c) a voluntary safety recall of all affected vehicles should be implemented.
Description of Remedy :
Description of Remedy Program : Aston Martin will inspect the affected vehicles and confirm the fasteners
have been torqued correctly, and if not, to torque to the correct value. Owners will be notified to take their vehicle to an Aston Martin Dealer. The repair procedure will take under 1 hour to complete, at no cost to the owner. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : No new components will be required. Process for parts shortages and recorded torque applications outside of lineside fitment have since been updated (April 2023) to prevent future occurrences. Recall Schedule :
Description of Recall Schedule : It is Aston Martin’s intention to notify all customers listed in table in
573.6(c) (2) above. Aston Martin will provide copies of the notification schedule, including mail dates for the owner letter, when available.
Planned Dealer Notification Date : APR 05, 2024 – APR 05, 2024
Planned Owner Notification Date : APR 22, 2024 – APR 22, 2025
* NR – Not Reported

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ASTON MARTIN AFTERSALES
05 April, 2024 Page 1 of 4
RECALL ACTION
Reference number:
RA-51-1928
Issued: 05 April, 2024
Subject:
Front Prop Shaft and Front Drive Unit (FDU)
Model(s):
DBX
VIN range:
Refer to the separately published list of Vehicle Identification Numbers (VINs)
Applicable to:
All Dealers
Distribute to:
Head of Business
After Sales Manager
Service Manager
Sales Manager
Warranty Staff
Technician(s)
Parts Staff
Attached Documents:
• Copy of the Owner Notification letter for vehicles in RA-51-1928
• Copy of the Change of Keeper or Address form
Reason for this Recall Action
Aston Martin has determined that a defect which relates to motor vehicle safety may exist on a number of DBX vehicles built between October 2020 and November 2020.
On the affected vehicles, the fasteners for the front prop shaft and the front differential do not have a record of being fully torqued to specification.
To correct this problem, do the Workshop Procedure given in this document to inspect and if necessary, torque the fasteners to the correct specification.
The full list of VINs for the affected vehicles are attached to this Recall Action document.
PLEASE DO A CHECK OF ALL VEHICLES THAT ARE IN THE AFFECTED VIN LIST
Communications
The customer letter and the “Change of Keeper or Address” form are published to Technical Hub.
When the Owner calls to make an appointment, briefly describe the repair which will be done to the Owner’s vehicle and explain the reason for this work. Tell the owner that the repair will be done at no cost to them.
RECALL ACTION RA-51-1928
05 April, 2024 Page 2 of 4
Workshop Procedure
1.
Set the transmission to Neutral (N) and do not apply the park brake.
2.
Remove the undertray for the front subframe (refer to Workshop Manual Procedure 40.01.AF).
3.
Torque the two bolts that attach the FDU assembly to 50 Nm plus 95 degrees (refer to Figure 1).
Note: Prop shaft and front drive half shaft removed for illustrative purposes only.
Figure 1
4.
Torque the bolt that attaches the FDU assembly to 50 Nm plus 95 degrees (refer to Figure 2).
Note: Prop shaft removed for illustrative purposes only.
Figure 2
5.
Torque the bolt that attaches the FDU assembly to 50 Nm plus 95 degrees (refer to Figure 3).
Figure 3
RECALL ACTION RA-51-1928
05 April, 2024 Page 3 of 4
6.
Use the Special Service Tool to hold the prop shaft (refer to Figure 4).
Figure 4
7.
Torque the two bolts that attach the prop shaft to 45 Nm plus 90 degrees (refer to Figure 5).
Figure 5
8.
Turn the prop shaft clockwise to gain access to the other two bolts.
9.
Torque the two bolts that attach the prop shaft to 45 Nm plus 90 degrees.
10.
Install the undertray for the front subframe (refer to Workshop Manual Procedure 40.01.AF).
RECALL ACTION RA-51-1928
05 April, 2024 Page 4 of 4
Warranty Data
Part Data
Description
Part Number
Quantity
BOLT M12X1.5X100 HEX FLANGE
MY83-E601424-AA
3
SCREW M12X1.5X50 HEX FLANGE
MY83-N800334-AA
1
BOLT DRIVE SHAFT HEXAL GRADE 10.9
MY83-E805600-AA
4
Note: Do not order parts until you have confirmed part replacement is necessary.
Procedure and Labour Time
Description
Labour Time
Torque check of the affected fasteners.
1.0 Hour
*Please submit a manual warranty claim for parts replaced due to damage.
To contact Aston Martin for further information about this document, please refer to the “Contact Us” page in Technical Hub.
Copy of the Owner Notification Letter
RA-51-1928 Customer Letter _FED – Copy Page 1 of 3
[Date DD Month, YYYY]
[Customer Name]
[Customer Address 1]
[Customer Address 2]
[Customer City/County]
[Customer Country]
IMPORTANT SAFETY RECALL NOTICE
NHTSA Recall [NHTSA Ref]
This notice applies to your vehicle: [INSERT VIN]
Dear [Customer]
Aston Martin has decided that a defect which relates to motor vehicle safety may exist in certain vehicles that were manufactured from May 2020 through September 2023.
Aston Martin has not received any report of an accident or injury caused by either defect. As a precaution, however, we ask that you contact your dealer for assistance with these important safety actions.
Safety Recall Actions:
• RA-63-1832 – DBX 12V Battery PSS Fusebox
• RA-51-1928 – Front Prop Shaft and Front Drive Unit (FDU)
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
Copy of the Owner Notification Letter
RA-51-1928 Customer Letter _FED – Copy Page 2 of 3
REASON FOR THESE RECALL ACTIONS
RA-63-1832 – DBX 12V Battery Fusebox
On the affected vehicles, it is possible that the fixings for the fuse box cables are not correctly torqued.
This could cause the cables to become loose, and (if undetected) could cause the vehicle to lose electrical power or heat damage to the fuse box. Loss of electrical power could result in engine stalling or loss of headlights, power assisted steering, or other vehicle functions. These could increase the risk of crash. Heat damage to the fuse box could cause smoke in the boot or an unpleasant odour.
A loose fuse box cable may cause a battery warning light to display on the instrument cluster.
The repair, if needed, involves simple and fast replacement of a new washer, split washer, and flat nut to each affected stud in the fuse box.
The models affected are:
• 2020 – 2023 DBX
• 2022 – 2023 DBX707
RA-51-1928 – Front Prop Shaft and Front Drive Unit (FDU)
On small number of affected vehicles, the fasteners for the front prop shaft and the front differential may not be correctly torqued. Improper fastening of the front prop shaft could result in the crank position sensor becoming unplugged and the engine stalling. This could increase the risk of crash.
The repair, if needed, involves simple and fast tightening of the bolts to the front prop shaft and front differential to the specified torque values.
The models affected are:
• 2022 DBX
Copy of the Owner Notification Letter
RA-51-1928 Customer Letter _FED – Copy Page 3 of 3
WHAT WE WILL DO
Aston Martin will inspect and if necessary, replace the affected parts for the 12V battery fuse box.
Aston Martin will also inspect the prop shaft and front drive units in affected vehicles and confirm the fixings have been torqued correctly, and if not, to torque to the correct value.
These actions will be done at no cost to yourself.
WHAT YOU SHOULD DO
Please contact your Aston Martin dealer as soon as possible to arrange a date for the repair. They will be able to fully explain why this Recall Action is necessary. Instructions for making this correction have been sent to your dealer. The labor time necessary to complete these service corrections is a maximum of two hours. Please ask your dealer if you wish to know how much additional time will be needed to schedule and process your vehicle.
Your Aston Martin dealer is best equipped to obtain parts and provide the service to make sure that your vehicle is corrected as promptly as possible. If, however you take your vehicle to your dealer on the agreed service date and they do not remedy this condition on that date, or within three days, we recommend that you contact Aston Martin Customer Service by calling 1-886-276-6661.
If after contacting your dealer and Aston Martin Customer Services, you are still not able to have the safety defect remedied without charge and within a reasonable time, you may wish to write to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590 or call 1-888-327-4236 (TTY: 1-800-275-9171) or go to http://www.nhtsa.gov.
IF YOU NO LONGER OWN THE VEHICLE
If you have sold or traded your vehicle, please tell us by completing the enclosed Change of Keeper form and returning it to us.
We are sorry to cause inconvenience with this Recall Action. However, this action has been taken in the interest of your safety and continued satisfaction with our products.
Yours sincerely
[Dealer’s Representative] [Representative’s Job Title] [Dealer Name]
Copy of the Change of Ownership form
Please return this form by mail to: Client Services, Aston Martin Lagonda Ltd, Banbury Road, Gaydon, Warwick, CV35
0DB, England.
Or, if you prefer, you can scan and email it to cofo@astonmartin.com.
THANK YOU FOR YOUR CO-OPERATION
Recall Action: RA-51-1928
Models: DBX
Subject: Front Prop Shaft and Front Drive Unit (FDU)
CHANGE OF KEEPER OR ADDRESS
VEHICLE IDENTIFICATION NUMBER
(VIN)
REGISTRATION NUMBER
(where known)
S C F
Please tick the applicable box:
I do not own/operate this vehicle now. The vehicle has been:
Stolen (1)
Scrapped (2)
Sold or Transferred to a new owner (3)
Part exchanged at an Aston Martin Lagonda Dealer (4)
Part exchanged at a non-Aston Martin Lagonda Dealer (5)
Declared an insurance total-loss (6)
Permanently exported to another country (7)
Returned to a lease company (8)
Sold at auction (9)
The address you have used is incorrect (10)
If you have ticked a box from (3) to (10), please record the latest known keeper information below:
Business Name
Title
First Name
Last Name
Address Line 1
Address Line 2
Town
County
Postal/Zip Code
Country
Signature: Date:

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