# Service bulletin PIC4740F

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: 10127178
- Published by NHTSA: 2018\-01\-22
- Manufacturer's number: PIC4740F
- Manufacturer's date: 2015\-09\-01
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

This Preliminary Information communication provides information to the technician for multiple concerns including service engine soon light, reduced power, no crank or start, multiple warning lights on, transmission shifts hard, or the door locks cycle while driving. The transmission control module or engine control module may not communicate with the scan tool. This could be caused by unseated pin or pins in the transmission connector. The technician should inspect the transmission connector X1 terminals by disconnecting it and carefully tugging on each wire to ensure the pins are fully seated. On the Cadillac ATS and CTS only the check the harness securing bracket on the passenger side of the vehicle were the transmission bell housing is attached to the engine block the harness should hang below the securing bracket. The harness should also be checked for chaffing.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10127178-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10127178-0001.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2013 to 2016 CADILLAC ATS
- 2008 to 2015 CADILLAC CTS
- 2006 to 2011 CADILLAC SRX
- 2006 to 2011 CADILLAC STS

## Recalls for the same vehicles and component

- [2018481](/recalls/tc/2018481.md), 2018-09-07: Electrical
- [2015390](/recalls/tc/2015390.md), 2015-09-03: Electrical
- [2015322](/recalls/tc/2015322.md), 2015-07-21: Electrical
- [2015075](/recalls/tc/2015075.md), 2015-02-19: Electrical
- [2014432](/recalls/tc/2014432.md), 2014-10-03: Electrical
- [14V614000](/recalls/nhtsa/14V614000.md), 2014-10-01: ELECTRICAL SYSTEM
- [2014273](/recalls/tc/2014273.md), 2014-07-02: Electrical
- [14V394000](/recalls/nhtsa/14V394000.md), 2014-07-02: ELECTRICAL SYSTEM:IGNITION
- [13V220000](/recalls/nhtsa/13V220000.md), 2013-05-24: EXTERIOR LIGHTING:BRAKE LIGHTS; ELECTRICAL SYSTEM
- [10V240000](/recalls/nhtsa/10V240000.md), 2010-06-04: ELECTRICAL SYSTEM

## Other bulletins for the same vehicles and component

- [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.
- [23\-NA\-001](/bulletins/11017252.md), 2025-04-28, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- [13\-08\-116\-001K](/bulletins/11017244.md), 2025-04-25, Service bulletin: ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
- [24\-NA\-098](/bulletins/11017207.md), 2025-04-24, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Service Programming System \(SPS\) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
- [15\-06\-03\-001F](/bulletins/11017031.md), 2025-04-15, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [09\-06\-04\-026Z](/bulletins/11013069.md), 2025-01-23, Service bulletin: ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides information on identifying Non\-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- [20\-NA\-132](/bulletins/11012929.md), 2025-01-18, Service bulletin: ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- [PIT5962B](/bulletins/11011805.md), 2024-12-12, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
- [20\-NA\-132](/bulletins/11010421.md), 2024-11-09, Service bulletin: ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

JSON: [/v1/bulletins/10127178](/v1/bulletins/10127178)

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