# Service bulletin PIT5590

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: 10123243
- Published by NHTSA: 2017\-11\-14
- Manufacturer's number: PIT5590
- Manufacturer's date: 2017\-10\-12
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

This Preliminary information communicates to the technician, that they may be working on a concern of a Service Driver Assist System Message with B172E stored in history Do not replace any parts. Engineering is aware of the issue and a new control module is in development and will be available Q1 2019.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10123243-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10123243-0001.pdf)

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

## Components

Electrical system, Software

## Vehicles listed

- 2018 BUICK ENCLAVE
- 2017 to 2018 BUICK ENVISION
- 2017 to 2018 BUICK LACROSSE
- 2017 to 2018 CADILLAC CT6 PLUG\-IN HYBRID
- 2017 to 2018 CADILLAC XT5
- 2018 CHEVROLET EQUINOX
- 2017 to 2018 GMC ACADIA
- 2018 GMC TERRAIN

## 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.
- [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.
- [PIP5814](/bulletins/10230680.md), 2023-01-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates that there some service parts released to dealers missing software.
- [17427](/bulletins/10191105.md), 2021-04-30, Service bulletin: ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM:SOFTWARE. Condition Certain 2018 model year GMC Terrain vehicles equipped with a trailer package \(RPO V92\) may have a trailer turn signal and brake lamp that is inoperative on a connected trailer due to an incorrect calibration. Correction Dealers are to reprogram the body control module.
- [17\-NA\-342](/bulletins/10190319.md), 2021-04-16, Service bulletin: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM:SOFTWARE. Service Brake Assist Message displayed on Initial Start Up with DTC P050F Set Condition Some customers may comment that on first start up they receive a "Service Brake Assist Message" displayed. During diagnosis a technician may find DTC P050F set. Cause This may be due to a calibration within the Electronic Brake Control Module \(EBCM\) not giving the engine enough time to build system vacuum. Correction Reprogram the EBCM with the latest calibrations
- [17\-NA\-330](/bulletins/10190315.md), 2021-04-15, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. Normal Characteristic – Push to Talk Button on Steering Wheel Control is Inoperative Condition Some customers may comment on one of the following conditions: 1. The push to talk button on the steering wheel control is inoperative when there is no phone device is paired with the vehicle. Note: The push to talk button, however, still answer OnStar hands\-free calls \(if equipped\). 2. Cannot delete USB names from the radio display. The Radio displays the names of USB drives that were previously installed and have been removed. Cause This condition may be due to one of the following: Condition 1, no action is required. It is normal operation if you do not have a phone device paired with the vehicle via Bluetooth. Condition 2, the radio displays the last 3 sources used for the radio like AM, FM, XM, Bluetooth device streaming music or USB drive. The sources are highlighted/actively listed even after the source is removed from the system. To delete the name of the USB from the radio display, push the more button on the display and select another radio sources like AM, FM or XM. Note: The radio will show the last 3 audio sources after removed, as shown in the illustration above Correction DO NOT replace the radio assembly as this is a normal design characteristic for the infotainment system.
- [17\-NA\-325](/bulletins/10190305.md), 2021-04-15, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. DTC B1265 Entertainment System Remote Enable Circuit Condition Some customers may comment on a malfunction indicator lamp illuminated. During diagnosis a technician may find DTC B1265 present or stored in history. Cause This may be due to an incorrect calibration loaded into the vehicle at assembly. Correction Reprogram the radio with the latest calibrations.
- [18NA091](/bulletins/10187432.md), 2021-02-22, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information for software update and transmission flush to correct a slight shutter felt during gear shift.
- [18NA091](/bulletins/10186123.md), 2021-02-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. This informational bulletin provides information for software update and transmission flush to correct a slight shutter felt during gear shift.

JSON: [/v1/bulletins/10123243](/v1/bulletins/10123243)

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