# Service bulletin PIT5905A

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: 10236148
- Published by NHTSA: 2023\-05\-15
- Manufacturer's number: PIT5905A
- Manufacturer's date: 2023\-04\-14
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Preliminary information communicates ordering process for front drive unit \(S8L\) and rear drive unit \(P79\) restriction for the 2022 MY GMC HUMMER EV and HUMMER EV SUV.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236148-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236148-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2022 to 2023 GMC HUMMER EV PICKUP
- 2024 GMC HUMMER EV SUV

## Other bulletins for the same vehicles and component

- [23\-NA\-153](/bulletins/11024485.md), 2025-10-25, Service bulletin: ENGINE. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
- [N252502390](/bulletins/11018802.md), 2025-06-02, Service campaign: ENGINE. Service Update. Certain vehicles listed above may require software updates that improve the customer experience and optimize future over\-the\-air updates. Dealers will perform a comprehensive software update.
- [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.
- [PIT5832S](/bulletins/11011872.md), 2024-12-16, Service bulletin: ENGINE; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
- [21\-NA\-043](/bulletins/11011709.md), 2024-12-10, Service bulletin: STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. 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.
- [23\-NA\-044](/bulletins/11007721.md), 2024-09-11, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This service bulletin provides information on AGM batteries that require less frequent charging in storage.
- [12\-01\-37\-001G](/bulletins/11006290.md), 2024-08-13, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information to dealership personnel on a new refrigerant \(R1234yf\) for A/C service.
- [18\-NA\-125](/bulletins/11002441.md), 2024-06-28, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation.
- [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/10247192.md), 2023-12-15, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

JSON: [/v1/bulletins/10236148](/v1/bulletins/10236148)

[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%20PIT5905A&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10236148&vehicle=Service%20bulletin%20PIT5905A)