# Service bulletin PIT5125D

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: 10154588
- Published by NHTSA: 2019\-03\-18
- Manufacturer's number: PIT5125D
- Manufacturer's date: 2018\-12\-13
- NHTSA component: EXTERIOR LIGHTING:TURN SIGNAL

## NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles proper operation of the stop and/or turn signals. For vehicles without Regular Production Option Code V4D circuit 618 is for the left stop and turn signal and circuit 619 dark green is for the right stop and turn signal. For vehicles with Regular Production Option Code V4D circuit 618 yellow is for the left turn signal only. Circuit 619 dark green is for the right turn signal only and circuit 1320 light blue is for the stop lamps only.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10154588-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10154588-9999.pdf)

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

## Components

Lighting, Turn signals

## Vehicles listed

- 2009 to 2019 CHEVROLET EXPRESS
- 2009 to 2019 GMC SAVANA

## Other bulletins for the same vehicles and component

- [PIT5125A](/bulletins/10247067.md), 2023-12-11, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS. Available Stop And Turn Lamp Options/Diagnostic Information
- [16\-NA\-345](/bulletins/10137632.md), 2018-05-21, Service bulletin: SERVICE BRAKES; EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM:SOFTWARE. This Technical bulletin provides information for reprogramming the BCM due to software anomaly causing the turn signals to engage when depressing the brake pedal.
- [PIT5125C](/bulletins/10126977.md), 2018-01-16, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL. This Preliminary Information communication provides information to the technician about vehicles proper operation of the stop and/or turn signals. For vehicles without Regular Production Option Code V4D circuit 618 is for the left stop and turn signal and circuit 619 dark green is for the right stop and turn signal. For vehicles with Regular Production Option Code V4D circuit 618 yellow is for the left turn signal only. Circuit 619 dark green is for the right turn signal only and circuit 1320 light blue is for the stop lamps only.
- [PIT5125B](/bulletins/10100030.md), 2017-05-22, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES PROPER OPERATION OF THE STOP AND/OR TURN SIGNALS. FOR VEHICLES WITHOUT REGULAR PRODUCTION OPTION CODE V4D CIRCUIT 618 IS FOR THE LEFT STOP AND TURN SIGNAL AND CIRCUIT 619 DARK GREEN IS FOR THE RIGHT STOP AND TURN SIGNAL. FOR VEHICLES WITH REGULAR PRODUCTION OPTION CODE V4D CIRCUIT 618 YELLOW IS FOR THE LEFT TURN SIGNAL ONLY. CIRCUIT 619 DARK GREEN IS FOR THE RIGHT TURN SIGNAL ONLY AND CIRCUIT 1320 LIGHT BLUE IS FOR THE STOP LAMPS ONLY.
- [PIT\-4748](/bulletins/10030673.md), 2009-11-10, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS. CHEVROLET/GMC: SOME VEHICLE UPFITTERS, PRIOR TO COMPLETION OF THEIR WORK ON THE INCOMPLETE VEHICLE \(CUTAWAY VANS\), MAY COMMENT THAT THE RIGHT REAR TURN SIGNAL AND STOP LAMPS ARE BOTH INOPERATIVE. THIS CAN BE CAUSED IF CIRCUIT 6519 IS IN THE WRONG CAVITY ON CONNECTOR X2 AT THE UNDERHOOD FUSE BLOCK. \*PE

JSON: [/v1/bulletins/10154588](/v1/bulletins/10154588)

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