# Service bulletin PIE0791B

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: 11004456
- Published by NHTSA: 2024\-07\-12
- Manufacturer's number: PIE0791B
- Manufacturer's date: 2024\-06\-19
- NHTSA component: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

## NHTSA's summary

This engineering information \(EI\) closure ends the need for gathering further information from technicians in regard to the Check Engine Lamp illuminated on DIC, and having DTCs P0202, P0203 Set.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11004456-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11004456-9999.pdf)

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

## Components

Electrical system, Fuel system

## Trouble codes named

P0202, P0203

## Vehicles listed

- 2023 to 2024 CADILLAC ESCALADE
- 2023 CADILLAC ESCALADE ESV
- 2023 to 2024 CHEVROLET SILVERADO 1500
- 2024 CHEVROLET SUBURBAN
- 2023 to 2024 CHEVROLET SUBURBAN 1500
- 2023 to 2024 CHEVROLET TAHOE
- 2023 to 2024 GMC SIERRA 1500
- 2023 to 2024 GMC YUKON
- 2023 GMC YUKON XL
- 2023 GMC YUKON XL 1500

## Recalls for the same vehicles and component

- [25V619000](/recalls/nhtsa/25V619000.md), 2025-09-18: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
- [24V320000](/recalls/nhtsa/24V320000.md), 2024-05-09: ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM:WIRING

## Other bulletins for the same vehicles and component

- [N262558690\-02](/bulletins/11037460.md), 2026-09-23, Service campaign: FUEL/PROPULSION SYSTEM. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
- [N262558690](/bulletins/11037321.md), 2026-09-16, Service campaign: FUEL/PROPULSION SYSTEM. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
- [N242452131\-02](/bulletins/11037312.md), 2026-09-15, Emissions: FUEL/PROPULSION SYSTEM. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023\-2024 model year Chevrolet Colorado / Silverado 1500 and GMC Canyon / Sierra 1500 vehicles equipped with a 2.7L engine \(RPO L3B\). The Engine Control Module \(ECM\) may not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
- [N262558690\-01](/bulletins/11036648.md), 2026-09-02, Emissions: FUEL/PROPULSION SYSTEM. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
- [N262558690\-01](/bulletins/11036143.md), 2026-08-12, Service campaign: FUEL/PROPULSION SYSTEM. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
- [N242452130\-01](/bulletins/11035685.md), 2026-08-04, Service campaign: FUEL/PROPULSION SYSTEM. Certain vehicles may have a condition in which the Engine Control Module \(ECM\) does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
- [N252529080](/bulletins/11030439.md), 2026-04-01, Service campaign: ELECTRICAL SYSTEM. Service Update. Certain vehicles listed above may be missing a high voltage header plug on the RESS battery pack drive motor connector. Dealers are to inspect the RESS pack connectors and install the proper HV Header Plug if missing.
- [N252515590](/bulletins/11027795.md), 2026-01-27, Service campaign: ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body\-to\-chassis ground strap may be corroded. Dealers will replace the ground strap.
- [N242438500\-04](/bulletins/11025665.md), 2025-11-24, Emissions: FUEL/PROPULSION SYSTEM. Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2024 Model Year Chevrolet Silverado and GMC Sierra vehicles with a 6.6L diesel engine. The Engine Control Module \(ECM\) may not properly diagnose, may not set Diagnostic Trouble Codes \(DTCs\), or may not illuminate the Malfunction Indicator Light \(Check Engine Light\) if certain fault conditions of the Selective Catalyst Reduction \(SCR or NOx\) catalyst occur. Dealers are to reprogram the ECM and TCM.
- [25\-NA\-119](/bulletins/11024500.md), 2025-10-27, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM. This service bulletin provides information on the Service Safety Restraint Message displayed on the DIC Airbag malfunction indicator illuminated.

JSON: [/v1/bulletins/11004456](/v1/bulletins/11004456)

[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%20PIE0791B&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11004456&vehicle=Service%20bulletin%20PIE0791B)