Service bulletin 19NA136
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 | 10163252 |
| Published by NHTSA | 2019-07-29 |
| Manufacturer's number | 19NA136 |
| Manufacturer's date | 2019-06-19 |
| NHTSA component | POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT ADAPTIVE/MOBILITY |
NHTSA's summary
This technical bulletin provides a procedure to change the diff fluid if found the cause of the customers concern.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Equipment and accessories, Transmission and driveline, Transfer case
| CADILLAC ESCALADE | 2015, 2016, 2017, 2018, 2019 |
|---|---|
| CADILLAC ESCALADE ESV | 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE ESV | 2017, 2018, 2019 |
| CHEVROLET SILVERADO 1500 | 2014, 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2015, 2016, 2017, 2018, 2019 |
| CHEVROLET TAHOE | 2015, 2016, 2017, 2018, 2019 |
| GMC SIERRA 1500 | 2014, 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2019 (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.
| 26V289000 | 2026-05-07. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) |
|---|---|
| 14V374000 | 2014-06-27. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 14192A | 2024-01-16. Service bulletin. Unwanted Transfer Case Shift to Neutral |
|---|---|
| 14192 | 2024-01-16. Service bulletin. Unwanted Transfer Case Shift to Neutral |
| PIP5825 | 2023-04-17. Service bulletin. This Preliminary information communicates A vehicle may come in with a internal transfer case concern. Internal fault , Dealers need to disassemble to the point of failure and then do a cost comparison to determan repair VS. replacement. |
| PIP5894 | 2023-01-30. Service bulletin. This Preliminary information communicates proper alignment of the transfer case actuator during repair or actuator replacement |
| PIE0349A | 2021-09-07. Service bulletin. Engineering Information - Service 4WD Messange Displayed and DTC C0398 - Equipped with Switch activated transfer case (RPO NQH) |
| PIE0349 | 2021-09-07. Service bulletin. Engineering Information - Service 4WD Messange Displayed and DTC C0398 - Equipped with Switch activated transfer case (RPO NQH) |
| PIE0349A | 2021-04-26. Service bulletin. Engineering Information – Service 4WD Message Displayed and DTC C0398 |
| 19NA136 | 2021-02-01. Service bulletin. This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode. |
| PIE0560A | 2020-06-01. Service bulletin. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Service 4WD message being visible on the driver information center (DIC). |
| PIP5580C | 2019-09-16. Service bulletin. This Preliminary information communicates the exchange program to assist engineering in identification of any early production issues. |