Service bulletin 15435
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 | 10089970 |
| Published by NHTSA | 2017-01-31 |
| Manufacturer's number | 15435 |
| Manufacturer's date | 2015-06-15 |
| NHTSA component | POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER |
NHTSA's summary
15435 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPLACE THE TORQUE CONVERTER ON CERTAIN 2015 MODEL YEAR CHEVROLET SILVERADO HD, GMC SIERRA HD AND GMC SIERRA DENALI HD VEHICLES EQUIPPED WITH AN ALLISON 6-SPEED AUTOMATIC TRANSMISSION (RPO MW7). THESE VEHICLES MAY HAVE BEEN ASSEMBLED WITH AN INCORRECTLY MACHINED TORQUE CONVERTER. CUSTOMERS MAY EXPERIENCE NOISE, POOR PERFORMANCE AND, IF THIS CONDITION IS NOT CORRECTED, EVENTUAL TRANSMISSION FAILURE.
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Transmission and driveline, Automatic transmission, Torque converter
| CHEVROLET SILVERADO 2500 | 2015 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| CHEVROLET SILVERADO 3500 | 2015 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2015 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2015 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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| PIP5621C | 2022-10-17. Service bulletin. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC. |
| 15-NA-083 | 2021-09-07. Service bulletin. Recovery Process from a Controller Reprogramming Interruption |
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| 990420002L | 2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation. |
| 06-00-89-031D | 2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification |
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