|                                      |                                                                      |  |  |  |  |
|--------------------------------------|----------------------------------------------------------------------|--|--|--|--|
| Deutsche Bank Trust Company Americas | BNY Mellon Trust of Delaware                                         |
| As Indenture Trustee                 | As Owner Trustee                                                     |
| Attn:  Ronaldo Reyes   | Attn: Corporate Trust Office                                     |
| 1761 East St. Andrew Place           |          Kristine Gullo |
| Santa Ana, CA 92705                  | 301 Bellevue Parkway, 3rd Floor                                      |
|                                      | Wilmington, DE 19809                                                 |

|                                                                            |                                 |  |  |  |  |
|----------------------------------------------------------------------------|---------------------------------|--|--|--|--|
| The Bank of New York Mellon Trust, N.A.                                    | Ally Auto Assets LLC            |
| Attn:  Structured Finance Services                           | Ally Bank                       |
|           Shylock Baloyi | Attn: Elliot Kahan          |
| 2 North LaSalle Street, Suite 700                                          | 601 S. Tryon Street             |
| Chicago, IL  60602                                               | Charlotte, North Carolina 28202 |

|         |                                    |  |  |  |  |
|---------|------------------------------------|--|--|--|--|
| Re: | Ally Auto Receivables Trust 2019-4 |
|         | Annual Statement as to Compliance  |

|    |                                                                                                                                                                                                          |  |  |  |  |
|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|
| a. | A review of the activities of the Servicer during the period of January 1, 2022 through December 31, 2022, and of its performance under the Servicing Agreement has been made under his supervision, and |

|    |                                                                                                                                                             |  |  |  |  |
|----|-------------------------------------------------------------------------------------------------------------------------------------------------------------|--|--|--|--|
| b. | To the best of his knowledge, based on such review, the Servicer has fulfilled all of its obligations under the Servicing Agreement throughout such period. |

|  |                                                           |  |  |  |  |  |  |  |
|--|-----------------------------------------------------------|--|--|--|--|--|--|--|
|  | Very truly yours,                                         |
|  |                                                           |
|  | /s/ David J. DeBrunner                            |  |
|  | David J. DeBrunner                                        |
|  | Vice President, Controller & Chief Accounting Officer |
|  |                                                           |