Exhibit 99.1

GM Financial Automobile Leasing Trust 2020-1

2.29% Exchange Note

Class A-1 1.63493% Asset Backed Notes

Class A-2A 1.67% Asset Backed Notes

Class A-2B Floating Asset Backed Notes

Class A-3 1.67% Asset Backed Notes

Class A-4 1.70% Asset Backed Notes

Class B 1.84% Asset Backed Notes

Class C 2.04% Asset Backed Notes

Class D 2.28% Asset Backed Notes

Servicer’s Certificate

Beginning of Period:	10/01/21
End of Period:	10/31/21
Number of days in Interest Period (Actual/360):	33
Number of days in Collection Period:	31
Report Due Date:	11/18/21
Distribution Date:	11/22/21
Transaction Month:	21

					Original Agg.
2020-1 Designated Pool	Units		Start Date	Closing Date	Securitization Value
		55,703	01/03/2020	02/19/2020	$	1,366,219,095

Total		55,703			$	1,366,219,095

RECONCILIATION OF 2020-1 DESIGNATED POOL AGGREGATE SECURITIZATION VALUE

{1}

Beginning of period Aggregate Securitization Value

{1}

607,782,201

{2}

Reduction in Agg. Securitization Value due to payments

{2}

7,811,877

{3}

Reduction in Agg. Securitization Value due to Defaulted Leases

{3}

640,419

{4}

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

{4}

31,149,265

{5}

Other adjustments

{5}

{6}

Total change in Agg. Securitization Value

{6}

39,601,561

{7}

End of period Aggregate Securitization Value

{7}

568,180,640

{8}

Pool Factor

{8}

41.587813

RECONCILIATION OF 2020-1 EXCHANGE NOTE

{9}	Original Exchange Note Balance	{9}	$	1,305,000,000

{10}	Beginning of period Exchange Note Balance	{10}	$	546,563,106

{11}	Exchange Note Principal Payment Amount	{11}		39,601,561

{12}	End of period Exchange Note Balance	{12}	$	506,961,545

{13}	Note Pool Factor	{13}		38.847628	%

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}	$	235,000,000		$	300,000,000		$	100,000,000		$	380,000,000		$	86,170,000

{15}	Beginning of period Note Balance	{15}	$	0		$	0		$	0		$	236,070,291		$	86,170,000

{16}	Noteholders’ Principal Distributable Amount	{16}		0			0			0			39,601,561			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		$	196,468,730		$	86,170,000

{21}	Note Pool Factor	{21}		0.000000	%		0.000000	%		0.000000	%		51.702297	%		100.000000	%

			Class B			Class C			Class D			TOTAL
{22}	Original Note Balance	{22}	$	59,430,000		$	55,330,000		$	34,160,000		$	1,250,090,000

{23}	Beginning of period Note Balance	{23}	$	59,430,000		$	55,330,000		$	34,160,000		$	471,160,291

{24}	Noteholders’ Principal Distributable Amount	{24}		0			0			0			39,601,561
{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}	$	59,430,000		$	55,330,000		$	34,160,000		$	431,558,730

{29}	Note Pool Factor	{29}		100.000000	%		100.000000	%		100.000000	%		34.522213	%

EXCHANGE NOTE MONTHLY PRINCIPAL PAYMENT AND INTEREST CALCULATIONS

Principal payment calculation:

{30}

Beginning of period Designated Pool Balance

{30}

607,782,201

{31}

Ending Designated Pool Balance

{31}

568,180,640

{32}

Unpaid prior Exchange Note Principal Payment Amount

{32}

{33}

Sum of {31} + {32}

{33}

568,180,640

{34}

Exchange Note Principal Payment Amount {30} - {33}

{34}

39,601,561

	Interest calculation:
		Beg Note Balance		Interest Carryover		Interest Rate			Days	Days Basis	Interest
{35}		$	546,563,106	$	0		2.29	%	30	30/360	$	1,043,025

RECONCILIATION OF EXCHANGE NOTE COLLECTION ACCOUNT

Additions:

{36}

2020-1 Designated Pool Collections (net of Liquidation Proceeds and fees)

{36}

11,501,176

{37}

Net Liquidation Proceeds collected during period

{37}

39,901,178

{38}

Investment Earnings

{38}

1,113

{39}

Investment Earnings - transferred to Indenture Note Collection Account

{39}

(1,113

)

{40}

Deposit from Servicer

{40}

{41}

Total Additions:

{41}

51,402,354

Distributions:

{42}

To the Servicer, Designated Pool Servicing Fee

{42}

506,485

{43}

To the 2020-1 Exchange Noteholder, the Exchange Note Interest Payment Amount

{43}

1,043,025

{44}

To the 2020-1 Exchange Noteholder, the Exchange Note Principal Payment Amount

{44}

39,601,561

{45}

To the 2020-1 Exchange Noteholder, any funds available to pay obligations pursuant to Indenture Section 8.3 (a)(i) through (xvii)

{45}

{46}

To the 2020-1 Exchange Noteholder, all remaining funds to be applied as Excess Exchange Note Payments

{46}

10,251,283

{47}

Total Distributions:

{47}

51,402,354

NOTEHOLDERS’ MONTHLY PRINCIPAL PAYMENT AND INTEREST CALCULATIONS

Noteholders’ Principal Distributable calculation:

{48}

Beginning Agg. Securitization Value

{48}

607,782,201

{49}

Ending Agg. Securitization Value

{49}

568,180,640

{50}

Principal Distributable Amount {48} - {49}

{50}

39,601,561

{51}

Noteholders’ Principal Carryover Amount

{51}

{52}

Principal Distributable Amount + Noteholders’ Principal Carryover Amount

{52}

39,601,561

{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}

39,601,561

{54}

Noteholders’ Principal Distributable Amount Lessor of {52} and {53}

{54}

39,601,561

	Noteholders’ Interest Distributable calculation:
	Class	Beg Note Balance		Interest Carryover		Interest Rate			Days	Days Basis	Interest
{55}	Class A-1	$	0	$	0		1.63493	%	33	Actual/360	$	0
{56}	Class A-2A	$	0		0		1.67	%	30	30/360		0
{57}	Class A-2B	$	0		0		0.22563	%	33	Actual/360		0
{58}	Class A-3	$	236,070,291		0		1.67	%	30	30/360		328,532
{59}	Class A-4	$	86,170,000		0		1.70	%	30	30/360		122,075
{60}	Class B	$	59,430,000		0		1.84	%	30	30/360		91,126
{61}	Class C	$	55,330,000		0		2.04	%	30	30/360		94,061
{62}	Class D	$	34,160,000		0		2.28	%	30	30/360		64,904

RECONCILIATION OF INDENTURE COLLECTION ACCOUNT

Available Funds:

{63}

2020-1 Exchange Note Collections

{63}

50,895,869

{64}

Investment Earnings

{64}

{65}

Investment Earnings - transferred from Exchange Note Collection Account

{65}

1,113

{66}

Investment Earnings - and amounts released from Reserve Account pursuant to Section 2.14(b)(ii) of Servicing Supplement

{66}

145

{67}

Optional Purchase Price

{67}

{68}

Indenture Section 5.4 disposition of Collateral

{68}

{69}

Available Funds:

{69}

50,897,127

{70}

Reserve Account Withdrawal Amount

{70}

{71}

Total Distributable Funds:

{71}

50,897,127

Distributions:

{72}

To the Successor Servicer, unpaid transition expenses, pro rata

{72}

{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}

{76}

Class A-1 Noteholders’ Interest Distributable Amount pari passu

{76}

{77}

Class A-2A Noteholders’ Interest Distributable Amount pari passu

{77}

{78}

Class A-2B Noteholders’ Interest Distributable Amount pari passu

{78}

{79}

Class A-3 Noteholders’ Interest Distributable Amount pari passu

{79}

328,532

{80}

Class A-4 Noteholders’ Interest Distributable Amount pari passu

{80}

122,075

{81}

Class A Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{81}

{82}

Class B Noteholders’ Interest Distributable Amount

{82}

91,126

{83}

Class B Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{83}

{84}

Class C Noteholders’ Interest Distributable Amount

{84}

94,061

{85}

Class C Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{85}

{86}

Class D Noteholders’ Interest Distributable Amount

{86}

64,904

{87}

Class D Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{87}

{88}

Noteholders’ Principal Distributable Amount

{88}

39,601,561

{89}

To the Reserve Account, the Reserve Amount Required Amount

{89}

{90}

To the Noteholders, the Accelerated Principal Amount (as calculated below)

{90}

{91}

To the Successor Servicer, any amounts in excess of the caps set forth, pro rata

{91}

{92}

To the Indenture Trustee, any amounts in excess of the caps set forth, pro rata

{92}

{93}

To the Asset Representations Reviewer, any amounts in excess of the caps set forth, pro rata

{93}

{94}

To the Issuer Owner Trustee, any amounts in excess of the caps set forth, pro rata

{94}

{95}

To the Issuer Trust Certificateholders, the aggregate amount remaining

{95}

10,594,243

{96}

Total Distributions:

{96}

50,897,127

PRINCIPAL PARITY AMOUNT CALCULATION

	Class	(X) Cumulative Note Balance		(Y) Aggregate Securitization Value		(I) Excess of (X) - (Y)		(II) Total Available Funds in Indenture Collection Account		Lesser of (I) or (II)
{97}	Class A	$	322,240,291	$	568,180,640	$	0	$	50,445,895	$	0
{98}	Class B		381,670,291		568,180,640		0		50,354,769		0
{99}	Class C		437,000,291		568,180,640		0		50,260,708		0
{100}	Class D		471,160,291		568,180,640		0		50,195,804		0

ACCELERATED PRINCIPAL AMOUNT CALCULATION

{101}

Excess Total Available Funds

{101}

10,594,243

{102}

Beginning Note Balance

{102}

471,160,291

{103}

Principal payments through Indenture Section 8.3 (a) (i) through (xv)

{103}

39,601,561

{104}

Pro-Forma Note Balance

{104}

431,558,730

{105}

Ending Aggregate Securitization Value

{105}

568,180,640

{106}

11% of Aggregate Securitization Value as of Cutoff until Class A-2 is paid in full,10% Thereafter ($136,621,910)

{106}

136,621,910

{107}

Required Pro Forma Note Balance {105} - {106}

{107}

431,558,730

{108}

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

{108}

{109}

Lesser of Excess Total Available Funds and Excess of Pro Forma Note Balance

{109}

OVERCOLLATERALIZATION CALCULATIONS

Exchange Note:

{110}

Ending Aggregate Securitization Value

{110}

568,180,640

{111}

End of Period Note Balance

{111}

506,961,545

{112}

Overcollateralization

{112}

61,219,095

{113}

Overcollateralization %

{113}

10.77

Asset Backed Notes:

{114}

Ending Aggregate Securitization Value

{114}

568,180,640

{115}

End of Period Note Balance

{115}

431,558,730

{116}

Overcollateralization

{116}

136,621,910

{117}

Overcollateralization %

{117}

24.05

RECONCILIATION OF 2020-1 CASH RESERVE ACCOUNT

{118}

Specified Reserve Balance

{118}

6,831,095

{119}

Beginning of Period Reserve Account balance

{119}

6,831,095

{120}

Investment Earnings

{120}

145

{121}

From the Indenture Collection Account, the Reserve Account Required Amount

{121}

{122}

To the Indenture Collection Account, the Reserve Account Withdrawal Amount

{122}

{123}

Total Reserve balance available:

{123}

6,831,240

{124}

Specified Reserve Balance

{124}

6,831,095

{125}

Release Excess Cash to Indenture Collection Available Funds

{125}

145

{126}

End of period Reserve Account balance

{126}

6,831,095

ASSET REPRESENTATIONS REVIEW DELINQUENCY TRIGGER

Dollars

Percentage

{127}

Receivables with Scheduled Payment delinquent 61 days or more

{127}

851,169

0.15

{128}

Compliance (Trigger Violation is a Delinquency Rate Greater Than 2.10% )

{128}

Yes

By:	/s/ Randal L. Willis
Name:	Randal L. Willis
Title:	Senior Vice President, Securitization & Conduit Reporting
Date:	November 17, 2021

GM Financial

GMALT 2020-1

Supplemental Monthly Data

October 31, 2021

	Aggregate Securitization Value			Residual Value
Beginning of Period	$	607,782,201		$	539,207,287
Change		(39,601,561	)		(30,164,819	)
End of Period	$	568,180,640		$	509,042,468

Residual Value as % of Agg. Securitization Value					89.59	%

Delinquency

Leases with scheduled payment delinquent	Number of Leases		Agg. Securitization Value		Percentage⁽¹⁾
0 - 30 days		27,995		563,827,000		99.23	%
31 - 60 days		158		3,502,471		0.62	%
61 - 90 days		29		654,804		0.12	%
91 - 120 days		8		196,365		0.03	%
Total		28,190		568,180,640		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		843		17,016,578		11,014		240,455,687
Standard terminations		739		13,378,483		5,549		107,429,681
Total retained by lessee		1,582		30,395,061		16,563		347,885,368
Returned Vehicles
Early terminations		15		209,041		4,961		82,449,349
Standard terminations		36		545,162		4,758		79,987,498
Total returned to dealer		51		754,203		9,719		162,436,847
Charged off leases / Repossessed vehicles		36		640,419		1,231		25,671,753
Repurchases		0		0		0		0
Other		0		0		0		0
Total terminations		1,669		31,789,683		27,513		535,993,968

Lease Extensions/Deferments

	Current Period
	Number of Leases		Agg. Securitization Value		Percentage

Term Extensions		931		16,991,733		2.80	%

Deferments		4		77,818		0.01	%

Net Credit (Gain) Loss

	Current Period			Cumulative
Agg. Securitized Value of early term defaults		640,419			25,671,753
less: Sales proceeds		848,969			29,521,772
less: Excess wear and excess mileage received		675			5,425
less: Other amounts received		-			0
Net Credit (Gain) Loss		(209,225	)		(3,855,444	)

Residual (Gain) Loss on Returned Vehicles

Agg. Securitized Value of returned vehicles sold by Servicer	688,594		160,080,952
add: Reimbursement of outstanding residual advance	N/A		N/A
less: Sales proceeds	1,351,490		201,532,697
less: Excess wear and excess mileage received	27,868		1,088,629
less: Other recovery amounts	-		0
Residual (Gain) Loss	(690,764	)	(42,540,374	)

	Current Period			Prev. Month
Prepay Speed		0.8176	%		0.3061	%

Return Rate based on Scheduled to Terminate⁽²⁾		3.0594	%		5.7669	%

Return Rate based on Terminated Leases⁽³⁾		3.0557	%		5.9619	%

(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 2020-1 10-D