# Service bulletin PIT5789

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: 10182582
- Published by NHTSA: 2020\-11\-16
- Manufacturer's number: PIT5789
- Manufacturer's date: 2020\-10\-29
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182582-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182582-9999.pdf)

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

## Components

Electrical system, Engine, Cooling system, Software, Water pump

## Trouble codes named

P2B87

## Vehicles listed

- 2021 CADILLAC ESCALADE NA
- 2021 CHEVROLET SUBURBAN
- 2021 CHEVROLET TAHOE
- 2021 GMC YUKON XL

## Recalls for the same vehicles and component

- [21V421000](/recalls/nhtsa/21V421000.md), 2021-06-10: AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE

## Other bulletins for the same vehicles and component

- [20\-NA\-132](/bulletins/10252774.md), 2024-04-05, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [N23\-241156](/bulletins/10240451.md), 2023-08-04, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. '\(There may be future updates under this same release number.\) Your vehicle keeps getting better. This vehicle software update includes the following: Refinements: •Updates made to the overall vehicle software update process. Better Never Stops™
- [PIT5762F](/bulletins/10231623.md), 2023-02-13, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues between the modules.
- [PIP5632G](/bulletins/10230683.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
- [PIP4902Q](/bulletins/10230682.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
- [PIT5832D](/bulletins/10227671.md), 2022-12-12, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
- [PIT5832C](/bulletins/10224307.md), 2022-10-17, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; COMMUNICATIONS:BACK UP ALARM. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
- [20NA166](/bulletins/10212560.md), 2022-05-31, Service bulletin: ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. This informational bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
- [21NA237](/bulletins/10207914.md), 2022-02-14, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM. THis technical bulletin provides a procedure to perform a cooling system flush to remove possible debris from the cooling system pipes.
- [PIP5828B](/bulletins/10206740.md), 2022-01-24, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This Preliminary information communicates to technicians the need to reflash the reductant controller for a P205B intermittently setting.

JSON: [/v1/bulletins/10182582](/v1/bulletins/10182582)

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