# Service bulletin B17040B

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: 10108772
- Published by NHTSA: 2017\-07\-31
- Manufacturer's number: B17040B
- Manufacturer's date: 2017\-05\-24
- NHTSA component: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:AXLE ASSEMBLY

## NHTSA's summary

Service news article \- Are you looking at what seems to be a rear differential axle seal or pinion seal leak? Something to keep in mind: The actual culprit may be something loose or damaged above it. A loose or damaged fluid pressure sensor will drip rear differential fluid onto the axle seal. A loose fluid pressure check port will drip that fluid onto the pinion seal.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10108772-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10108772-0001.pdf)

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

## Components

Transmission and driveline, Axle, Differential

## Vehicles listed

- 2016 to 2017 ACURA MDX
- 2015 to 2017 ACURA TLX

## Other bulletins for the same vehicles and component

- [B17040B](/bulletins/10108371.md), 2017-06-30, Service bulletin: EQUIPMENT:MECHANICAL; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. "SERVICE NEWS ARTICLE \- ARE YOU LOOKING AT WHAT SEEMS TO BE A REAR DIFFERENTIAL AXLE SEAL OR PINION SEAL LEAK? SOMETHING TO KEEP IN MIND: THE ACTUAL CULPRIT MAY BE SOMETHING LOOSE OR DAMAGED ABOVE IT. A LOOSE OR DAMAGED FLUID PRESSURE SENSOR WILL DRIP REAR DIFFERENTIAL FLUID ONTO THE AXLE SEAL. A LOOSE FLUID PRESSURE CHECK PORT WILL DRIP THAT FLUID ONTO THE PINION SEAL."
- [B16\-009](/bulletins/10106692.md), 2017-06-16, Service bulletin: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. SERVICE BULLETIN \- WHILE DRIVING AT HIGHWAY SPEEDS \(55 MPH AND ABOVE\), THERE IS A LOW\-FREQUENCY RUMBLE THAT CAN BE HEARD, OR A VIBRATION/BUZZ THAT CAN BE FELT IN YOUR LEGS THAT COMES THROUGH THE SEAT AND FLOOR. THIS VIBRATION IS TYPICALLY NOT FELT AT SPEEDS UNDER 55 MPH AND IS NOT THE SAME FEELING AS A TIRE IMBALANCE.

JSON: [/v1/bulletins/10108772](/v1/bulletins/10108772)

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