Exhibit 99.1

GM Financial Automobile Leasing Trust 2017-3

2.84% Exchange Note

Class A-1 1.35000% Asset Backed Notes

Class A-2A 1.72% Asset Backed Notes

Class A-2B Floating Asset Backed Notes

Class A-3 2.01% Asset Backed Notes

Class A-4 2.12% Asset Backed Notes

Class B 2.40% Asset Backed Notes

Class C 2.73% Asset Backed Notes

Class D 2.83% Asset Backed Notes

Servicer's Certificate

Beginning of Period:	10/01/19
End of Period:	10/31/19
Number of days in Interest Period (Actual/360):		30
Number of days in Collection Period:		31
Report Due Date:		11/18/19
Distribution Date:		11/20/19
Transaction Month:		26

2017-3

Original Agg.

Designated Pool

Units

Start Date

Closing Date

Securitization Value

45,285

08/01/2017

09/20/2017

1,090,137,186

Total

45,285

1,090,137,186

RECONCILIATION OF 2017-3 DESIGNATED POOL AGGREGATE SECURITIZATION VALUE

{1} Beginning of period Aggregate Securitization Value

{1}

379,902,276

{2} Reduction in Agg. Securitization Value due to payments

{2}

5,386,954

{3} Reduction in Agg. Securitization Value due to Defaulted Leases

{3}

625,056

{4} Reduction in Agg. Securitization Value due to early terminations, dealer buyouts, cancellations, repurchases

{4}

40,214,622

{5} Other adjustments

{5}

{6} Total change in Agg. Securitization Value

{6}

46,226,632

{7} End of period Aggregate Securitization Value

{7}

333,675,644

{8} Pool Factor

{8}

30.608592

RECONCILIATION OF 2017-3 EXCHANGE NOTE

{9} Original Exchange Note Balance

{9}

1,053,000,000

{10} Beginning of period Exchange Note Balance

{10}

342,765,090

{11} Exchange Note Principal Payment Amount

{11}

46,226,632

{12} End of period Exchange Note Balance

{12}

296,538,458

{13} Note Pool Factor

{13}

28.161297

RECONCILIATION OF THE ASSET BACKED NOTES

		Class A-1			Class A-2A			Class A-2B			Class A-3			Class A-4
{14} Original Note Balance	{14}	$	134,000,000		$	200,000,000		$	150,000,000		$	310,000,000		$	84,700,000

{15} Beginning of period Note Balance	{15}	$	0		$	0		$	0		$	67,413,900		$	84,700,000

{16} Noteholders’ Principal Distributable Amount	{16}		0			0			0			46,226,632			0
{17} Noteholders’ Accelerated Principal Amount	{17}		0			0			0			0			0
{18} Aggregate Principal Parity Amount	{18}		0			0			0			0			0
{19} Matured Principal Shortfall	{19}		0			0			0			0			0

{20} End of period Note Balance	{20}	$	0		$	0		$	0		$	21,187,268		$	84,700,000

{21} Note Pool Factor	{21}		0.000000	%		0.000000	%		0.000000	%		6.834603	%		100.000000	%

		Class B			Class C			Class D						TOTAL
{22} Original Note Balance	{22}	$	47,420,000		$	44,100,000		$	29,980,000					$	1,000,200,000

{23} Beginning of period Note Balance	{23}	$	47,420,000		$	44,100,000		$	29,980,000					$	273,613,900

{24} Noteholders’ Principal Distributable Amount	{24}		0			0			0						46,226,632
{25} Noteholders’ Accelerated Principal Amount	{25}		0			0			0						0
{26} Aggregate Principal Parity Amount	{26}		0			0			0						0
{27} Matured Principal Shortfall	{27}		0			0			0						0

{28} End of period Note Balance	{28}	$	47,420,000		$	44,100,000		$	29,980,000					$	227,387,268

{29} Note Pool Factor	{29}		100.000000	%		100.000000	%		100.000000	%					22.734180	%


EXCHANGE NOTE MONTHLY PRINCIPAL PAYMENT AND INTEREST CALCULATIONS

Principal payment calculation:
{30} Beginning of period Designated Pool Balance																	{30}		$	379,902,276

{31} Ending Designated Pool Balance															{31}		333,675,644
{32} Unpaid prior Exchange Note Principal Payment Amount															{32}		0
{33} Sum of {31} + {32}																	{33}			333,675,644

{34} Exchange Note Principal Payment Amount {30} - {33}																	{34}		$	46,226,632

Interest calculation:

		Beg Note Balance		Interest Carryover		Interest Rate			Days			Days Basis		Interest
{35}		$	342,765,090	$	0		2.84	%		30			30/360	$	811,211

RECONCILIATION OF EXCHANGE NOTE COLLECTION ACCOUNT

Additions:
{36} 2017-3 Designated Pool Collections (net of Liquidation Proceeds and fees)															{36}	$	7,001,153
{37} Net Liquidation Proceeds collected during period															{37}		45,027,360
{38} Investment Earnings															{38}		67,566
{39} Investment Earnings - transferred to Indenture Note Collection Account															{39}		(67,566	)
{40} Deposit from Servicer															{40}		0

{41} Total Additions:																	{41}			52,028,513

Distributions:
{42} To the Servicer, Designated Pool Servicing Fee															{42}		316,585
{43} To the 2017-3 Exchange Noteholder, the Exchange Note Interest Payment Amount															{43}		811,211
{44} To the 2017-3 Exchange Noteholder, the Exchange Note Principal Payment Amount															{44}		46,226,632
{45} To the 2017-3 Exchange Noteholder, any funds available to pay obligations pursuant to Indenture Section 8.3 (a)(i) through (xvii)															{45}		0
{46} To the 2017-3 Exchange Noteholder, all remaining funds to be applied as Excess Exchange Note Payments															{46}		4,674,085

{47} Total Distributions:																	{47}		$	52,028,513

NOTEHOLDERS’ MONTHLY PRINCIPAL PAYMENT AND INTEREST CALCULATIONS

Noteholders’ Principal Distributable calculation:
{48} Beginning Agg. Securitization Value											{48}	$	379,902,276
{49} Ending Agg. Securitization Value											{49}		333,675,644
{50} Principal Distributable Amount {48} - {49}													{50}		46,226,632

{51} Noteholders’ Principal Carryover Amount													{51}		0

{52} Principal Distributable Amount + Noteholders’ Principal Carryover Amount															{52}		46,226,632

{53} Amount required to reduce Outstanding Amount after giving effect to distributions made pursuant to Indenture Section 8.3 (i) through (xiii) to the Required Pro Forma Note Balance															{53}		46,226,632

{54} Noteholders’ Principal Distributable Amount Lessor of {52} and {53}																	{54}		$	46,226,632

Noteholders’ Interest Distributable calculation:

	Class	Beg Note Balance		Interest Carryover		Interest Rate			Days			Days Basis		Interest
{55}	Class A-1	$	0	$	0		1.35	%		30			Actual/360	$	0
{56}	Class A-2A	$	0		0		1.72	%		30			30/360		0
{57}	Class A-2B	$	0		0		2.08638	%		30			Actual/360		0
{58}	Class A-3	$	67,413,900		0		2.01	%		30			30/360		112,919
{59}	Class A-4	$	84,700,000		0		2.12	%		30			30/360		149,637
{60}	Class B	$	47,420,000		0		2.40	%		30			30/360		94,840
{61}	Class C	$	44,100,000		0		2.73	%		30			30/360		100,328
{62}	Class D	$	29,980,000		0		2.83	%		30			30/360		70,703

RECONCILIATION OF INDENTURE COLLECTION ACCOUNT

Available Funds:
{63} 2017-3 Exchange Note Collections															{63}	$	51,711,928
{64} Investment Earnings															{64}		0
{65} Investment Earnings - transferred from Exchange Note Collection Account															{65}		67,566
{66} Investment Earnings - and amounts released from Reserve Account pursuant to Section 2.14(b)(ii) of Servicing Supplement															{66}		8,010
{67} Optional Purchase Price															{67}		0
{68} Indenture Section 5.4 disposition of Collateral															{68}		0
{69} Available Funds:																	{69}			51,787,504

{70} Reserve Account Withdrawal Amount															{70}		0

{71} Total Distributable Funds:																	{71}			51,787,504

Distributions:
{72} To the Successor Servicer, unpaid transition expenses, pro rata															{72}		0
{73} To the Indenture Trustee, any accrued and unpaid fees & expenses, pro rata															{73}		417
{74} To the Issuer Owner Trustee, any accrued and unpaid fees & expenses, pro rata															{74}		208
{75} To the Asset Representations Reviewer, any accrued and unpaid fees & expenses, pro rata															{75}		0
{76} Class A-1 Noteholders’ Interest Distributable Amount pari passu															{76}		0
{77} Class A-2A Noteholders’ Interest Distributable Amount pari passu															{77}		0
{78} Class A-2B Noteholders’ Interest Distributable Amount pari passu															{78}		0
{79} Class A-3 Noteholders’ Interest Distributable Amount pari passu															{79}		112,919
{80} Class A-4 Noteholders’ Interest Distributable Amount pari passu															{80}		149,637
{81} Class A Noteholders’ Principal Parity Amount or Matured Principal Shortfall															{81}		0
{82} Class B Noteholders’ Interest Distributable Amount															{82}		94,840
{83} Class B Noteholders’ Principal Parity Amount or Matured Principal Shortfall															{83}		0
{84} Class C Noteholders’ Interest Distributable Amount															{84}		100,328
{85} Class C Noteholders’ Principal Parity Amount or Matured Principal Shortfall															{85}		0
{86} Class D Noteholders’ Interest Distributable Amount															{86}		70,703
{87} Class D Noteholders’ Principal Parity Amount or Matured Principal Shortfall															{87}		0
{88} Noteholders’ Principal Distributable Amount															{88}		46,226,632
{89} To the Reserve Account, the Reserve Amount Required Amount															{89}		0
{90} To the Noteholders, the Accelerated Principal Amount (as calculated below)															{90}		0
{91} To the Successor Servicer, any amounts in excess of the caps set forth, pro rata															{91}		0
{92} To the Indenture Trustee, any amounts in excess of the caps set forth, pro rata															{92}		0
{93} To the Asset Representations Reviewer, any amounts in excess of the caps set forth, pro rata															{93}		0
{94} To the Issuer Owner Trustee, any amounts in excess of the caps set forth, pro rata															{94}		0
{95} To the Issuer Trust Certificateholders, the aggregate amount remaining															{95}		5,031,820

{96} Total Distributions:																	{96}		$	51,787,504


PRINCIPAL PARITY AMOUNT CALCULATION

		(X)		(Y)		(I)		(II)
	Class	Cumulative Note Balance		Aggregate Securitization Value		Excess of (X) - (Y)		Total Available Funds in Indenture Collection Account			Lesser of (I) or (II)
{97}	Class A	$	152,113,900	$	333,675,644	$	0	$		51,524,323	$	0
{98}	Class B		199,533,900		333,675,644		0			51,429,483		0
{99}	Class C		243,633,900		333,675,644		0			51,329,155		0
{100}	Class D		273,613,900		333,675,644		0			51,258,452		0

ACCELERATED PRINCIPAL AMOUNT CALCULATION

{101} Excess Total Available Funds												{101}	$	5,031,820

{102} Beginning Note Balance									{102}	273,613,900
{103} Principal payments through Indenture Section 8.3 (i) through (xv)									{103}	46,226,632
{104} Pro-Forma Note Balance										{104}		227,387,268

{105} Ending Aggregate Securitization Value									{105}	333,675,644
{106} 10.75% of Aggregate Securitization Value as of Cutoff until Class A-2 is paid in full,9.75% Thereafter ($106,288,376)									{106}	106,288,376
{107} Required Pro Forma Note Balance {105} - {106}										{107}		227,387,268

{108} Excess of Pro Forma Balance minus Required Pro Forma Balance {104} - {107}												{108}		0

{109} Lesser of Excess Total Available Funds and Excess of Pro Forma Note Balance														{109}	$	0

OVERCOLLATERALIZATION CALCULATIONS

Exchange Note:
{110} Ending Aggregate Securitization Value												{110}	$	333,675,644
{111} End of Period Note Balance												{111}		296,538,458
{112} Overcollateralization												{112}		37,137,186
{113} Overcollateralization %														{113}		11.13	%

Asset Backed Notes:
{114} Ending Aggregate Securitization Value												{114}		333,675,644
{115} End of Period Note Balance												{115}		227,387,268
{116} Overcollateralization												{116}		106,288,376
{117} Overcollateralization %														{117}		31.85	%

RECONCILIATION OF 2017-3 CASH RESERVE ACCOUNT
{118} Specified Reserve Balance														{118}	$	5,450,686

{119} Beginning of Period Reserve Account balance														{119}	$	5,450,686
{120} Investment Earnings												{120}		8,010
{121} From the Indenture Collection Account, the Reserve Account Required Amount												{121}		0
{122} To the Indenture Collection Account, the Reserve Account Withdrawal Amount												{122}		0
{123} Total Reserve balance available:														{123}		5,458,696

{124} Specified Reserve Balance														{124}		5,450,686

{125} Release Excess Cash to Indenture Collection Available Funds														{125}		8,010

{126} End of period Reserve Account balance														{126}	$	5,450,686

ASSET REPRESENTATIONS REVIEW DELINQUENCY TRIGGER
													Dollars		Percentage
{127} Receivables with Scheduled Payment delinquent 61 days or more												{127}	$	1,240,550		0.37	%
{128} Compliance (Trigger Violation is a Delinquency Rate Greater Than 2.90%)												{128}				Yes


By:		/s/Randal L. Willis
Name:		Randal L. Willis
Title:		Senior Vice President, Securitization & Conduit Reporting-Treasury
Date:		November 15, 2019

GM Financial

GMALT 2017-3

Supplemental Monthly Data

October 31, 2019


	Aggregate Securitization Value			Residual Value
Beginning of Period	$	379,902,276		$	346,136,202
Change		(46,226,632	)		(39,958,892	)

End of Period	$	333,675,644		$	306,177,310
Residual Value as % of Agg. Securitization Value					91.76	%

Delinquency


	Number of Leases		Agg. Securitization Value		Percentage(1)
Leases with scheduled payment delinquent
0 - 30 days		17,093		328,639,183		98.49	%
31 - 60 days		201		3,795,911		1.14	%
61 - 90 days		38		608,176		0.18	%
91 - 120 days		33		632,374		0.19	%

Total		17,365		333,675,644		100.00	%

Lease Terminations

	Current Period				Cumulative
	Number of Leases		Agg. Securitization Value		Number of Leases		Agg. Securitization Value
Retained vehicles by lessee
Early terminations		214		4,664,733		3,515		85,693,195
Standard terminations		138		2,538,812		1,291		24,634,336
Total retained by lessee		352		7,203,545		4,806		110,327,531
Returned Vehicles
Early terminations		1,016		17,445,251		12,053		209,921,092
Standard terminations		864		15,565,827		9,464		163,816,923
Total returned to dealer		1,880		33,011,078		21,517		373,738,015
Charged off leases / Repossessed vehicles		33		625,056		1,596		33,074,398
Repurchases		0		0		1		31,196
Other		0		0		0		0
Total terminations		2,265		40,839,679		27,920		517,171,140

Net Credit (Gain) Loss

	Current Period			Cumulative
Agg. Securitized Value of early term defaults		625,056			33,074,398
less: Sales proceeds		674,103			31,451,465
less: Excess wear and excess mileage received		674			20,222
less: Other amounts received		796			525,183
Net Credit (Gain) Loss		(50,517	)		1,077,528

Residual (Gain) Loss on Returned Vehicles
Agg. Securitized Value of returned vehicles sold by Servicer		32,824,810			370,892,014
add: Reimbursement of outstanding residual advance		N/A			N/A
less: Sales proceeds		35,478,590			401,134,223
less: Excess wear and excess mileage received		251,388			1,401,282
less: Other recovery amounts		9,350			517,358
Residual (Gain) Loss		(2,914,518	)		(32,160,849	)

	Current Period			Prev. Month
Prepay Speed		1.2187	%		0.7646	%

Return Rate based on Scheduled to Terminate⁽²⁾		85.1449	%		73.9908	%

Return Rate based on Terminated Leases⁽³⁾		83.0022	%		75.2934	%

(1)	Percentages may not add to 100% due to rounding.

(2)	Percentage of total number of vehicles returned to dealer over number of vehicles scheduled to terminate per month.

(3)	Percentage of total number of vehicles returned to dealer over number of vehicles terminated per month.

GM Financial Automobile Leasing Trust 2017-3 10-D