# Service bulletin PIT5429

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: 10115005
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIT5429
- Manufacturer's date: 2015\-06\-01
- NHTSA component: SUSPENSION

## NHTSA's summary

This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have rough, harsh, or stiff ride. The concern is most noticeable between 35\-55 mph on fairly smooth roads, when coming in contact with small road imperfections, or expansion joints. Technician will need to use the vibration analyzer CH\-51450\-A \(Pico Oscilloscope\), while driving the vehicle in 35\-55 mph range on the same section of road for each stage of evaluation. If a rough, harsh, stiff ride has been determined to be the customer?s concern following evaluation using the Pico scope, then replace the complete front suspension shock with coil spring assemblies, and rear shocks with updated parts and reprogram the Suspension Control Module \(K19\) with updated calibrations available in TIS2WEB.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10115005-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10115005-0001.pdf)

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

## Components

Suspension

## Vehicles listed

- 2015 CADILLAC ESCALADE
- 2015 CADILLAC ESCALADE ESV
- 2015 CHEVROLET SUBURBAN
- 2015 CHEVROLET TAHOE
- 2015 GMC YUKON
- 2015 GMC YUKON XL

## Other bulletins for the same vehicles and component

- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [18\-NA\-315](/bulletins/11017424.md), 2025-05-01, Service bulletin: SUSPENSION. This service bulletin advises the tech to only replace the shock that is bad and not all shocks.
- [05\-03\-07\-009L](/bulletins/11015409.md), 2025-03-08, Service bulletin: SUSPENSION; WHEELS. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
- [05\-03\-08\-002J](/bulletins/11007936.md), 2024-09-20, Service bulletin: SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
- [05\-03\-08\-002J](/bulletins/11007935.md), 2024-09-20, Service bulletin: SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
- [15\-00\-89\-004G](/bulletins/11000119.md), 2024-05-15, Service bulletin: ENGINE; SUSPENSION; POWER TRAIN. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- [PIT5287A](/bulletins/10248469.md), 2024-01-08, Service bulletin: ELECTRICAL SYSTEM; SUSPENSION. Front Shock Electrical Connector Terminal Removal.
- [PIT5214F](/bulletins/10247352.md), 2023-12-18, Service bulletin: SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
- [15NA082B](/bulletins/10246535.md), 2023-12-11, Service bulletin: SUSPENSION. Clunking Noise from Front of Vehicle During Turns and/or Bumps
- [15NA082](/bulletins/10246534.md), 2023-12-11, Service bulletin: SUSPENSION. Clunking Noise from Front of Vehicle During Turns and/or Bumps

JSON: [/v1/bulletins/10115005](/v1/bulletins/10115005)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20PIT5429&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10115005&vehicle=Service%20bulletin%20PIT5429)