# Service bulletin 21\-NA\-003

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: 10251351
- Published by NHTSA: 2024\-03\-06
- Manufacturer's number: 21\-NA\-003
- Manufacturer's date: 2024\-02\-26
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

This service bulletin provides a repair procedure to correct a customer concern of Loss of and/or Reduced Propulsion.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10251351-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10251351-9999.pdf)

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

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2020 to 2024 BUICK ENCORE GX
- 2019 to 2024 CHEVROLET MALIBU
- 2021 to 2024 CHEVROLET TRAILBLAZER

## Recalls for the same vehicles and component

- [23V744000](/recalls/nhtsa/23V744000.md), 2023-11-06: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2020520](/recalls/tc/2020520.md), 2020-10-29: Powertrain

## Other bulletins for the same vehicles and component

- [PIE0831A](/bulletins/11030340.md), 2026-03-31, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This engineering information \(EI\) closure ends the need for gathering further information from technicians in regard to the Malfunction Indicator Lamp \(MIL\) illuminated on Driver Information Center \(DIC\), DTC P0299 Set.
- [23\-NA\-119](/bulletins/11024331.md), 2025-10-16, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in\- Park, No Start \- DTC B000A Set.
- [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.
- [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.
- [PIE0831](/bulletins/11019725.md), 2025-06-25, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This engineering information \(EI\) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the Malfunction Indicator Lamp \(MIL\) illuminated on the Driver Information Center \(DIC\).
- [22\-NA\-242](/bulletins/11019545.md), 2025-06-16, Service bulletin: ELECTRICAL SYSTEM. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
- [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.
- [24\-NA\-229](/bulletins/11019017.md), 2025-06-03, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
- [18\-NA\-069](/bulletins/11017876.md), 2025-05-06, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM; ENGINE. This service bulletin provides a service procedure to correct conditions of Poor Engine Performance in Extremely cold weather conditions, CAC Icing, MIL Illuminated with DTCs set.
- [25\-NA\-087](/bulletins/11017595.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.

JSON: [/v1/bulletins/10251351](/v1/bulletins/10251351)

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