Service bulletin GR16D8a

Manufacturer communication, from NHTSA Manufacturer Communications

Published by NHTSA: Sep 4, 2026
Manufacturer: PORSCHE
NHTSA ID: 11037072
NHTSA category: Service Bulletin/Repair Instructions
Applies to, as stated by NHTSA: PORSCHE 718 2017; PORSCHE 718 BOXSTER 2016-2026; PORSCHE 718 BOXSTER GTS 2021-2024; PORSCHE 718 BOXSTER S 2017-2024; PORSCHE 718 CAYMAN 2016-2026; PORSCHE 718 CAYMAN GT4 2022-2024; PORSCHE 718 CAYMAN GT4 RS 2024; PORSCHE 718 CAYMAN GTS 2022-2024; PORSCHE 718 CAYMAN S 2017-2024; PORSCHE 718 SPYDER 2018-2026; PORSCHE 718 SPYDER RS 2024; PORSCHE 911 2002-2005, 2012-2026; PORSCHE 911 (997) 2005-2011; PORSCHE 911 4S 2022; and 132 more models
Component, as stated by NHTSA: UNKNOWN OR OTHER

Text of the manufacturer communication

Product Knowledge for Model Type Designations

Manufacturer document number: GR16D8a
Date of the communication: 2026-08-14

NHTSA reuses some ID numbers across record types. If its page lists more than one record, this one is the manufacturer communication dated Sep 4, 2026.

For the 2022 Porsche 911

Carrera S (992)

Ignored

Relevance of 25% is under one half, so the notice is ignored whatever the other figures say.

Vehicle relevance: 25%
Attention: 16%
Interrupt probability: 12%

Importance to this owner: 0.5 of 4, minor
Vehicle area the notice is about: None

This manufacturer communication does not appear to warrant attention for this vehicle.

Decided by jev-1.13.0 in 184 ms from 5,024 input tokens. Jev returns these figures and nothing else. It gives no reasons, and none are written for it here. The figures describe how relevant the notice is, not the condition of any vehicle.

Checked by code against NHTSA's fields

A plain comparison with the structured fields NHTSA filled in. Separate from Jev's decision.

YesNHTSA names this make
YesNHTSA names this model (listed as 911)
YesNHTSA lists model year 2022 for this model

The same notice, every vehicle

Relevance	Attention	Interrupt	State
25%	16%	12%	Ignored
1%	4%	4%	Ignored
1%	3%	4%	Ignored
1%	3%	4%	Ignored
1%	4%	4%	Ignored
1%	4%	4%	Ignored
1%	5%	5%	Ignored
1%	4%	4%	Ignored
1%	3%	4%	Ignored
1%	3%	4%	Ignored
1%	3%	5%	Ignored
1%	4%	4%	Ignored
1%	3%	3%	Ignored
1%	4%	4%	Ignored
1%	3%	4%	Ignored
1%	4%	5%	Ignored

Select a vehicle to see its attention and interrupt figures above.