# Service bulletin 20NA034

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: 10172810
- Published by NHTSA: 2020\-03\-30
- Manufacturer's number: 20NA034
- Manufacturer's date: 2020\-02\-19
- NHTSA component: SUSPENSION:REAR:AXLE:NON\-POWERED AXLE ASSEMBLY; EQUIPMENT

## NHTSA's summary

This technical bulletin provides a procedure to replace either the axle or the bearing depending if there is a lip on the axle after pulling it.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172810-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172810-9999.pdf)

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

## Components

Equipment and accessories, Suspension

## Vehicles listed

- 2017 to 2019 CHEVROLET COLORADO
- 2017 to 2019 GMC CANYON

## 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.
- [17\-NA\-394](/bulletins/11017245.md), 2025-04-26, Service bulletin: SUSPENSION. This technical bulletin provides a procedure for lubricating the rear leaf springs and re\-torque the bolts to correct a squeak, clunking noise.
- [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.
- [17\-NA\-394](/bulletins/11015202.md), 2025-03-06, Service bulletin: SUSPENSION. This technical bulletin provides a procedure for lubricating the rear leaf springs and re\-torque the bolts to correct a squeak, clunking noise.
- [17\-NA\-394](/bulletins/11012928.md), 2025-01-18, Service bulletin: SUSPENSION. This technical bulletin provides a procedure for lubricating the rear leaf springs and re\-torque the bolts to correct a squeak, clunking noise.
- [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.
- [20\-NA\-132](/bulletins/10253527.md), 2024-04-23, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [17\-NA\-052](/bulletins/10253526.md), 2024-04-23, Service bulletin: WHEELS; EQUIPMENT. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

JSON: [/v1/bulletins/10172810](/v1/bulletins/10172810)

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