# Service bulletin SB1639001

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: 10081834
- Published by NHTSA: 2016\-10\-07
- Manufacturer's number: SB1639001
- Manufacturer's date: 2016\-08\-31
- NHTSA component: POWER TRAIN

## NHTSA's summary

SOME MODEL X VEHICLES MIGHT HAVE BEEN BUILT WITH INCORRECT FRONT HALFSHAFTS. IF FULL LOCK STEERING IS APPLIED WHILE THE SUSPENSION IS FULLY EXTENDED, AN INCORRECT HALFSHAFT COULD OVEREXTEND, DAMAGING THE DUST BOOT OR THE CONSTANT VELOCITY JOINT. THIS MIGHT LEAD TO A KNOCKING OR GRINDING NOISE AND/OR A WARNING MESSAGE ON THE INSTRUMENT CLUSTER.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline

## Vehicles listed

- 2016 TESLA MODEL X

## Other bulletins for the same vehicles and component

- [SB2139001R3](/bulletins/10251045.md), 2024-03-04, Service bulletin: POWER TRAIN. Some versions of Model S and X front drive unit halfshafts might cause excessive vibrations during hard acceleration at higher ride height settings. This is exclusively an NVH issue and does not otherwise affect steering functionality, braking, or acceleration.
- [SB2139001R2](/bulletins/10212803.md), 2022-05-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Some versions of Model S and X front drive unit halfshafts might cause excessive vibrations during hard acceleration at higher ride height settings. This is exclusively an NVH issue and does not otherwise affect steering functionality, braking, or acceleration.
- [SB\-19\-39\-001 R2](/bulletins/10162295.md), 2019-07-08, Service bulletin: POWER TRAIN. Older versions of the Model S and Model X LH front drive unit clevis mount contain a bushing that allows the front drive unit to move side\-to\-side more than expected during hard accelerations, resulting in excessive vibrations coming from the front drive unit during hard acceleration. This is exclusively an NVH issue and does not otherwise affect steering functionality, braking, or acceleration.

JSON: [/v1/bulletins/10081834](/v1/bulletins/10081834)

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