# Service bulletin A202309280

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: 10213743
- Published by NHTSA: 2022\-06\-13
- Manufacturer's number: A202309280
- Manufacturer's date: 2020\-08\-05
- NHTSA component: EQUIPMENT; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING

## NHTSA's summary

Customer Satisfaction Program. Certain vehicles may have oil leaking from one or more of the plugs on the drive unit assembly. If not addressed, the drive unit could be damaged due to the loss of fluid over time, and the driver may hear abnormal grinding and scraping noises if extreme oil leakage occurs. Dealers are to apply Loctite between the housing and the four plugs and tighten plugs as required.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10213743-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10213743-9999.pdf)

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

## Components

Engine, Equipment and accessories, Fuel system

## Vehicles listed

- 2020 CHEVROLET BOLT EV

## Recalls for the same vehicles and component

- [2021631](/recalls/tc/2021631.md), 2021-10-14: Accessories

## Other bulletins for the same vehicles and component

- [24\-NA\-202](/bulletins/11024496.md), 2025-10-27, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin provides dealers with Warranty Administration information on North American Charging Standard \(NACS\) DC Adapter Warranty Claim Information.
- [18\-NA\-180](/bulletins/11024324.md), 2025-10-16, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information.
- [PIE0753I](/bulletins/11023388.md), 2025-09-30, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This engineering information \(EI\) will assist GM to recover a small number of electric vehicle battery packs from customer\-owned vehicles in the field for further engineering study and analysis.
- [18\-NA\-180](/bulletins/11023365.md), 2025-09-26, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information.
- [23\-NA\-157](/bulletins/11017517.md), 2025-05-02, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp \(MIL\) illuminated in Driver Information Center \(DIC\), a Reduced Propulsion message, and charging limited to 30% State of Charge \(SOC\).
- [25\-NA\-065](/bulletins/11017173.md), 2025-04-24, Service bulletin: STEERING; SERVICE BRAKES; FUEL/PROPULSION SYSTEM. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- [PIE0753H](/bulletins/11015242.md), 2025-03-07, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This engineering information \(EI\) will assist GM to recover a small number of electric vehicle battery packs from customer\-owned vehicles in the field for further engineering study and analysis.
- [24\-NA\-015](/bulletins/11015213.md), 2025-03-06, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin provides Hybrid/EV Charging Issue Information and Data Collection Worksheet.
- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [PIE0753G](/bulletins/11014012.md), 2025-02-08, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This engineering information \(EI\) will assist GM to recover a small number of electric vehicle battery packs from customer\-owned vehicles in the field for further engineering study and analysis.

JSON: [/v1/bulletins/10213743](/v1/bulletins/10213743)

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