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Service bulletin No. 84-21-1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10198970
Published by NHTSA2021-07-06
Manufacturer's numberNo. 84-21-1
Manufacturer's date2021-06-22
NHTSA componentSUSPENSION

NHTSA's summary

Recall repair instructions for Porsche Recall Campaign AMB2 – Replacing Lower Trailing Arm on Front Axle.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension

Vehicles listed
PORSCHE PANAMERA2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20212942021-05-17. Suspension
21V3620002021-05-17. SUSPENSION:FRONT
20183132018-06-13. Suspension
18V3880002018-06-13. SUSPENSION:REAR

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SPTL26092026-10-02. Service bulletin. Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
SPTL26082026-09-04. Service bulletin. Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
No. D7812026-05-07. Service bulletin. Parts information for parts withdrawal involving (992513031K) Shock absorber (spring cyl.). The vehicles affected are ones that use the part number mentioned.
No. D7572026-03-02. Service bulletin. Parts information for parts withdrawal involving the retaining spring. The vehicles affected are cars that use part number 95C615269E
No. D705.12025-01-07. Service bulletin. Parts information for parts withdrawal for information on the cardan shaft and shock absorber. The vehicles affected are cars that use part numbers 958521101, 958521101A, 9J1413031G
No. D7052025-01-07. Service bulletin. Parts information for parts withdrawal for information on the cardan shaft and shock absorber. The vehicles affected are cars that use part numbers 958521101, 958521101A, 9J1413031G
No. D6862024-07-03. Service bulletin. Parts information for parts withdrawal involving the air spring
No. 89-112022-04-05. Service bulletin. Technical information - adjust values for suspension alignment: using current values and observing specifcations.
AMB22021-07-06. Service bulletin. Porsche intranet posting with preliminary info for dealers on Recall Campaign AMB2 Stop Delivery/Recall campaign - Replacing lower trailing arms on front axle.
ATI416022021-06-28. Service bulletin. Suspension Bushings Leaking - When susspension bushings are installed, an assembly lubricant is used. It is possible that over time this lube will weep and appear to be a leak from a bushing that is not hydraulic/