# Service bulletin 122\-N8C4M\-12

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.

- Type: Service bulletin
- NHTSA id: 10188278
- Published by NHTSA: 2021\-03\-06
- Manufacturer's number: 122\-N8C4M\-12
- Manufacturer's date: 2018\-11\-06
- NHTSA component: EQUIPMENT; WHEELS; LATCHES/LOCKS/LINKAGES

## NHTSA's summary

Resubmitting at request of Mr. Bernard Hardgrave. Advanced Technical information for center\-locking wheel nut tightening.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10188278-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10188278-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Latches and locks, Wheels

## Vehicles listed

- 2004 to 2005 PORSCHE 911
- 2012 to 2020 PORSCHE 911
- 2005 to 2011 PORSCHE 911 \(997\)
- 2015 PORSCHE 918 SPYDER
- 2016 PORSCHE 918 SPYDER

## Recalls for the same vehicles and component

- [19V875000](/recalls/nhtsa/19V875000.md), 2019-12-11: CHILD SEAT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
- [14V698000](/recalls/nhtsa/14V698000.md), 2014-11-04: LATCHES/LOCKS/LINKAGES:HOOD:LATCH
- [12V558000](/recalls/nhtsa/12V558000.md), 2012-12-03: WHEELS:HUB; SUSPENSION:REAR:AXLE:SPINDLE
- [11V285000](/recalls/nhtsa/11V285000.md), 2011-06-10: WHEELS:LUGS/NUTS/BOLTS/STUDS
- [2011194](/recalls/tc/2011194.md), 2011-05-12: Wheels

## Other bulletins for the same vehicles and component

- [SPTL2609](/bulletins/11037868.md), 2026-10-02, Service bulletin: WHEELS; STEERING; SUSPENSION. Special Tools and Equipment Information for alignment machines \- Q3 2026 Software Spec Update Available
- [SPTL2608](/bulletins/11037083.md), 2026-09-04, Service bulletin: WHEELS; SUSPENSION; STEERING. Special Tools and Equipment Information for alignment machines \- Q2 2026 Software Spec Update Available
- [109/21 4407](/bulletins/11034803.md), 2026-07-08, Service bulletin: WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure \(SY 109/21\)
- [40/26 4407](/bulletins/11034784.md), 2026-07-07, Service bulletin: WHEELS. Wheel Bolt Replacement Requirement \- Change from Wheel Bolts with Aluminum Washers to Wheel Bolts with Steel Washers \(40/26\)
- [109/21 4407](/bulletins/11034628.md), 2026-07-07, Service bulletin: WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure \(SY 109/21\)
- [109/21 4407](/bulletins/11034598.md), 2026-07-07, Service bulletin: WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure \(SY 109/21\)
- [No. 164\-24\-1](/bulletins/11033649.md), 2026-06-05, Service bulletin: WHEELS. Technical information for Safety Pin for the Locking Unit on the Central Wheel Lock Cannot be Pressed In/Jammed: Observe Specified Procedure
- [No. 1506.2](/bulletins/11032435.md), 2026-05-07, Service bulletin: WHEELS. Instructions on advanced technical information for center\-locking wheel nut tightening.
- [No. D774](/bulletins/11030878.md), 2026-04-07, Service bulletin: WHEELS. Parts information for Parts Withdrawal \- Pressure Sensor \(9A790605201\) The cars affected are ones that use the part number mentioned.
- [No. D771](/bulletins/11030850.md), 2026-04-06, Service bulletin: WHEELS. Parts information for Parts Withdrawal \- Hub Cap. Part numbers involved are 9Y0601149F, 9Y0601149G, 9Y0601149H, 9Y0601149J, 9Y0601149L, and 9Y0601149M. The vehicles affected are ones that use the part numbers mentioned.

JSON: [/v1/bulletins/10188278](/v1/bulletins/10188278)

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