# Service bulletin PIE0421A

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: 10137354
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: PIE0421A
- Manufacturer's date: 2018\-02\-02
- NHTSA component: SUSPENSION:FRONT:SHOCK ABSORBER; SUSPENSION:FRONT:MACPHERSON STRUT

## NHTSA's summary

This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Noise Originating from Front Shock/Strut While Accelerating, Stopping, or Traveling Over Bumps.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10137354-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10137354-0001.pdf)

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

## Components

Suspension, Shocks and struts

## Vehicles listed

- 2017 CADILLAC ESCALADE
- 2017 CADILLAC ESCALADE ESV
- 2017 CHEVROLET SUBURBAN
- 2017 CHEVROLET TAHOE
- 2017 GMC SIERRA
- 2017 GMC YUKON
- 2017 GMC YUKON XL

## Other bulletins for the same vehicles and component

- [150089004B](/bulletins/10190337.md), 2021-04-16, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER; SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:REAR:SHOCK ABSORBER. Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
- [150089004C](/bulletins/10188403.md), 2021-03-08, Service bulletin: SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- [18NA315](/bulletins/10183158.md), 2020-11-30, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. This informational bulletin advises the tech to only replace the shock that is bad and not all.
- [PIE0397A](/bulletins/10140343.md), 2018-06-11, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information \- Noise Originating from Front Shock/Strut While Traveling at Low Speeds and/or Going Over Bumps.
- [PIT5049D](/bulletins/10129878.md), 2018-03-12, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. This Preliminary Information communication provides information to the technician on the steps to help diagnose and repair vehicles with a rattle, squeak, clunk, thump, or bump. If published Service Information diagnostics do not lead to a repair for the concern. Technician should inspect the opposite side shock/strut for the cause of the concern.
- [PIT5287D](/bulletins/10129877.md), 2018-03-12, Service bulletin: ELECTRICAL SYSTEM; SUSPENSION:FRONT:SHOCK ABSORBER. This Preliminary Information communication provides information to the technician with the correct way to remove the front shock electrical connector terminals. Technician will need to slightly bend the end of the J\-38125\-12A release tool. There is a purple Terminal Position Assurance that will align itself in the release position when the release tool is inserted into the release hole. There is a metal locking tab on the terminal that will need to be pushed in before the terminal will pull out of the connector.
- [05\-03\-08\-002H](/bulletins/10111743.md), 2017-08-15, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER. This informational bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.

JSON: [/v1/bulletins/10137354](/v1/bulletins/10137354)

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