NHTSA ID Number: 10074667
Manufacturer Communication Number: 15-NA-043
Summary
This technical bulletin provides repair information to correct a customer concern on a rear turn signal inoperative and/or a “turn indicator failure” message displayed on the DIC.
Condition
Some customers may comment on a rear turn signal inoperative and/or a turn indicator failure message displayed on the DIC.
Cause
This may be caused by an internal failure within the rear turn signal socket.
Correction
If you encounter a vehicle with the above concern, follow the procedure listed below:
1. Remove the affected turn signal socket from the tail lamp. Refer to Rear Turn Signal Bulb Replacement in SI.
2. With the rear turn signal bulb socket removed, visually inspect the socket julian date on the back of the socket as illustrated above.
- If the julian date is within 15032–15120, replace the affected socket.
- If the julian date does not fall in between 15032–15120, continue normal diagnosis referring to SI.
Parts
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| Subject: | Rear Turn Signal Inoperative and/or Turn Indicator Failure Message Displayed in DIC |
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Cadillac |
SRX | 2015 | 2015 | March 1, 2015 | April 30, 2015 | All | All |
Rear turn signal inoperative and/or a turn indicator failure message displayed on the DIC.
This may be caused by an internal failure within the rear turn signal socket.
Correction
If you encounter a vehicle with the above concern, follow the procedure listed below:
- Remove the affected turn signal socket from the tail lamp.

- With the rear turn signal bulb socket removed, visually inspect the socket julian date on the back of the socket as illustrated above.
- If the julian date is within 15032–15120, replace the affected socket.
- If the julian date does not fall in between 15032–15120, continue normal diagnosis referring to Service Information.
Parts Information
| Description | Part Number |
| SOCKET ASM-RR T/SIG LP | 25984639
ACDelco LS273 GM Original Equipment Rear Brake Light Lamp Socket
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API |
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1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
| CADILLAC | SRX | 2015 |
1 Associated Document
Service Bulletin Document
Bulletin No.: 15-NA-043
Date: November, 2015
SB-10074667-2280.pdf 686.082KB
NHTSA ID Number: 10126402
Manufacturer Communication Number: 15-NA-043
Summary
This technical bulletin provides repair information to correct a customer concern on a rear turn signal inoperative and/or a “turn indicator failure” message displayed on the DIC.
1 Associated Document
Manufacturer Communications
Bulletin No.: 15-NA-043
Date: Oct-2015
MC-10126402-9999.pdf 159.801KB
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Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
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Copyright 2015 General Motors
LLC. All Rights Reserved. Service Bulletin File in Section: – Bulletin No.: 15-NA-043 Date: November, 2015 TECHNICAL Subject: Rear Turn Signal Inoperative and/or Turn Indicator Failure Message Displayed in DIC Attention: This Bulletin also applies to any of the models that may be Export vehicles. Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Cadillac
SRX 2015 2015 March 1, 2015 April 30, 2015 All All Condition Some customers may comment on a rear turn signal inoperative and/or a turn indicator failure message displayed on the DIC. Cause This may be caused by an internal failure within the rear turn signal socket. Correction If you encounter a vehicle with the above concern, follow the procedure listed below: 1. Remove the affected turn signal socket from the tail lamp. Refer to Rear Turn Signal Bulb Replacement in SI. 4291162 2. With the rear turn signal bulb socket removed, visually inspect the socket julian date on the back of the socket as illustrated above. • If the julian date is within 15032–15120, replace the affected socket. • If the julian date does not fall in between 15032–15120, continue normal diagnosis referring to SI. Page 2 November, 2015 Bulletin No.: 15-NA-043 Parts Information Description Part Number SOCKET ASM-RR T/SIG LP 25984639 Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time 2080608* Rear Turn Signal Lamp Bulb Socket Replacement 0.3 hr *This is a unique Labor Operation for Bulletin use only. Version 1 Modified GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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