March 10, 2021 NHTSA CAMPAIGN NUMBER: 21V157000
Suspension Components Not Tightened Properly
Loose suspension components may detach, causing a sudden loss of vehicle stability and control, and increasing the risk of a crash.
NHTSA Campaign Number: 21V157
Manufacturer Porsche Cars North America, Inc.
Components SUSPENSION
Potential Number of Units Affected 396
Summary
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Taycan Turbo, Taycan Turbo S, Taycan, Taycan 4S, 911 Turbo S Coupe, Cayman, Cayman T, Cayman S, Cayman GT4, 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4S Coupe, 911 Carrera 4S Targa, 911 Carrera Cabriolet, 911 Carrera S Cabriolet, 911 Carrera 4S Targa Heritage Design Edition, 911 Carrera 4S Cabriolet, 911 Turbo Coupe, 911 Turbo Cabriolet, 911 Turbo S Cabriolet, 718 Spyder, and Boxster vehicles. Certain suspension components may not have been tightened correctly and can loosen.
Remedy
Dealers will replace the affected suspension nuts and bolts. Dealers will also inspect surrounding components for damage, and replace any damaged parts as necessary. Repairs will be performed free of charge. Owner notification letters were mailed May 7, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche’s number for this recall is AMA3.
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.safercar.gov.
Check if your Porsche has a Recall
Concerns:
Hexagon clamping nut M12 x 1.5 on various threaded connections on the chassis
Information:
There is a possibility that clamping nuts, on which the thread was not manufactured according to specifications, were installed on various threaded connections on the chassis on the affected vehicles.
As a result, the required tightening torque was reached before the threaded connection was actually tightened fully when installing the clamping nuts. There is therefore no guarantee that the affected threaded connections will remain sufficiently tight over the service life of the vehicle.
Action required:
Rework threaded connections on the front and rear axle.
On vehicles that have already been delivered to customers, the screwed components must also be checked for damage.
Information
Please note that different screw positions on the front and rear axle must be reworked on the affected vehicles.
The following specific campaign scopes have therefore been defined for reworking the threaded connections. Every vehicle is clearly assigned just one campaign scope.
The relevant M12 x 1.5 fastening nuts must be replaced on all affected vehicles, depending on the assigned scope.
In addition, the relevant fastening screws must also be replaced.
On vehicles on which a component is screwed at the relevant screw point (e.g. actuator or connecting link), depending on the assigned scope, the thread on the relevant component must be checked and the component may also have to be replaced, depending on the result of the check.
On vehicles that have already been delivered to customers, the components that are screwed together must also be checked for damage caused by relative movements while driving as installings, contact surfaces or bores on the individual components may have been damaged. The relevant components may also have to be replaced, depending on the result of the check.
Pre-Information: AMA3 Stop Delivery / Recall campaign – Reworking diverse threaded…
AMA3 Stop Delivery / Recall campaign – Reworking diverse threaded connections at the suspension
IMPORTANT REMINDER
IT IS A VIOLATION OF FEDERAL LAW FOR DEALERS TO DELIVER TO CUSTOMERS NEW VEHICLES IN THEIR INVENTORY AFFECTED BY THIS NOTIFICATION UNTIL THESE VEHICLES ARE REMEDIED.
DEALERS SHOULD NOT SELL, LEASE, RENT, OR LOAN ANY NEW OR USED VEHICLES IN DEALER INVENTORY AFFECTED BY THIS NOTIFICATION PRIOR TO REMEDY. DEALERS GROUNDING LEASE RETURNS SHOULD REMEDY ALL AFFECTED GROUNDED VEHICLES. Undelivered Vehicles (WMC1)
Please be advised that Stop Delivery Campaign WMC1 has been expanded to include sold/delivered vehicles in customer hands as Safety Recall AMA3.
WMC1 vehicles have been rolled into the AMA3 recall population, and must not be delivered until remedied. Remedy availability is expected in early April.
Overview
There is a possibility that locknuts that were not manufactured to specification were used on diverse threaded connections of the vehicle’s suspension.
As a result, the specified tightening torque may not have been met on the threaded connection and therefore cannot be guaranteed over the service life of the affected vehicles.
The locknut and the corresponding bolt at the relevant connections will be replaced and torqued to specification.
| Model line | Taycan (Y1A, Y1B)
911 (992) 718 (982) |
| Model year | 2021 |
| Number of affected vehicles | 396 |
Test instructions and remedial measures
Will be communicated once available (approx. calendar week 13).
5 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| PORSCHE | 718 SPYDER | 2021 |
| PORSCHE | 911 | 2021 |
| PORSCHE | BOXSTER | 2021 |
| PORSCHE | CAYMAN | 2021 |
| PORSCHE | TAYCAN | 2021 |
12 Associated Documents
Recall Quarterly Report #1, 2021-2
RCLQRT-21V157-8846.PDF 211.143KB
RCLQRT-21V157-8846
ISSUED Owner Notification Letter(Part 577)
RCONL-21V157-2410.pdf 137.067KB
RCONL-21V157-2410
Part 577 Owner Notification Envelope
Manufacturer Notices(to Dealers,etc) – AMA3 Stop Delivery / Recall campaign – Reworking diversethreaded connections at the suspension
RCMN-21V157-7306
Remedy Instructions and TSB
RCRIT-21V157-6640.pdf 772.861KB
RCRIT-21V157-6640
Remedy Instructions and TSB
RCRIT-21V157-5052.pdf 367.973KB
RCRIT-21V157-5052
Remedy Instructions and TSB
RCRIT-21V157-9053.pdf 455.297KB
RCRIT-21V157-9053
Remedy Instructions and TSB
RCRIT-21V157-3539.pdf 819.561KB
RCRIT-21V157-3539
Defect Notice 573 Report
RCLRPT-21V157-6928.PDF 224.086KB
RCLRPT-21V157-6928
Recall Acknowledgement
RCAK-21V157-7316.pdf 189.547KB
RCAK-21V157-7316
Recall Quarterly Report #2, 2021-3
RCLQRT-21V157-4141.PDF 211.237KB
RCLQRT-21V157-4141
Recall Quarterly Report #3, 2021-4
RCLQRT-21V157-4930.PDF 211.328KB
RCLQRT-21V157-4930
Latest Recalls Documents
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V157&docType=RCL
- Genuine Porsche OEM product
- Genuine Oem:Yes, Category 2:Front Suspension, Fitment Footnotes:Exc.active Sway Bar, Part Ref# On Diagram:ONLY PART REFERENCE #16 ON THE DIAGRAM I, Category 1:Front Suspension
- Brand:Porsche, Fitment Type:Direct Replacement, Vendor:Vendor, Quantity Needed:2
- Manufacturer Part Number:97034379205, Category 3:Stabilizer Bar, Item Name:Bracket, Position:Front Upper
- Genuine Oem: Yes, Category 2: Front Suspension, Item Name: Susp Crossmember Mount Bolt, Category 1: Front Suspension
- Brand: Porsche, Fitment Type: Direct Replacement, Part Ref# On Diagram: ONLY PART REFERENCE #2 ON THE DIAGRAM IS
- Manufacturer Part Number: N91156101, Category 3: Suspension Mounting, Quantity Needed: 8
- Genuine Oem:Yes, Category 2:Rear Suspension, Superseded Part Number:99633121703, Part Ref# On Diagram:ONLY PART REFERENCE #4 ON THE DIAGRAM IS
- Brand:Porsche, Fitment Type:Direct Replacement, Other Part Number:99633121703, Category 1:Rear Suspension
- Manufacturer Part Number:99733121703, Category 3:Suspension Components, Item Name:Lower Control Arm Adjust Bolt
- Genuine Oem:Yes, Category 2:Front Suspension, Item Name:Lower Control Arm Outer Bushing, Category 1:Front Suspension
- Brand:Porsche, Fitment Type:Direct Replacement, Part Ref# On Diagram:ONLY PART REFERENCE #7 ON THE DIAGRAM IS
- Manufacturer Part Number:95534324301, Category 3:Suspension Components, Quantity Needed:1
- Genuine Oem:Yes, Category 2:Rear Suspension, Item Name:Strut Mount, Placement On Vehicle:Rear
- Brand:Porsche, Fitment Type:Direct Replacement, Part Ref# On Diagram:ONLY PART REFERENCE #11 ON THE DIAGRAM I
- Manufacturer Part Number:98133305901, Category 3:Suspension Components, Category 1:Rear Suspension
- Genuine Oem:Yes, Category 2:Front Suspension, Fitment Footnotes:Diag Ref #4, Other Part Number:97034124501, Quantity Needed:2
- Brand:Porsche, Fitment Type:Direct Replacement, Vendor:Vendor, Item Name:Lower Control Arm Inner Bushing, Position:Front Lower Forward
- Manufacturer Part Number:97034124502, Category 3:Suspension Components, Superseded Part Number:97034124501, Part Ref# On Diagram:ONLY PART REFERENCE #3 ON THE DIAGRAM IS, Category 1:Front Suspension
- Genuine Porsche OEM product
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