Exhibit 99.1

GM Financial Automobile Leasing Trust 2018-1

3.38% Exchange Note

Class A-1 1.90000% Asset Backed Notes

Class A-2A 2.39% Asset Backed Notes

Class A-2B Floating Asset Backed Notes

Class A-3 2.61% Asset Backed Notes

Class A-4 2.68% Asset Backed Notes

Class B 2.87% Asset Backed Notes

Class C 3.11% Asset Backed Notes

Class D 3.37% Asset Backed Notes

Servicer’s Certificate

Beginning of Period:	03/01/20
End of Period:	03/31/20
Number of days in Interest Period (Actual/360):	31
Number of days in Collection Period:	31
Report Due Date:	04/16/20
Distribution Date:	04/20/20
Transaction Month:	26

2018-1 Designated Pool	Units		Start Date	Closing Date	Original Agg. Securitization Value
		56,399	12/26/2017	02/22/2018	$	1,362,401,047

Total		56,399			$	1,362,401,047

RECONCILIATION OF 2018-1 DESIGNATED POOL AGGREGATE SECURITIZATION VALUE

{1}

Beginning of period Aggregate Securitization Value

{1}

462,619,603

{2}

Reduction in Agg. Securitization Value due to payments

{2}

5,640,870

{3}

Reduction in Agg. Securitization Value due to Defaulted Leases

{3}

1,029,666

{4}

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

{4}

33,129,547

{5}

Other adjustments

{5}

{6}

Total change in Agg. Securitization Value

{6}

39,800,083

{7}

End of period Aggregate Securitization Value

{7}

422,819,520

{8}

Pool Factor

{8}

31.034879

RECONCILIATION OF 2018-1 EXCHANGE NOTE

{9}	Original Exchange Note Balance	{9}	$	1,314,000,000

{10}	Beginning of period Exchange Note Balance	{10}	$	414,218,556

{11}	Exchange Note Principal Payment Amount	{11}		39,800,083

{12}	End of period Exchange Note Balance	{12}	$	374,418,473

{13}	Note Pool Factor	{13}		28.494557	%

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}	$	156,000,000		$	200,000,000		$	200,000,000		$	445,000,000		$	97,090,000

{15}	Beginning of period Note Balance	{15}	$	0		$	0		$	0		$	80,785,501		$	97,090,000

{16}	Noteholders’ Principal Distributable Amount	{16}		0			0			0			39,800,083			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		$	40,985,418		$	97,090,000

{21}	Note Pool Factor	{21}		0.000000	%		0.000000	%		0.000000	%		9.210206	%		100.000000	%

			Class B			Class C			Class D			TOTAL
{22}	Original Note Balance	{22}	$	59,260,000		$	55,180,000		$	37,470,000		$	1,250,000,000

{23}	Beginning of period Note Balance	{23}	$	59,260,000		$	55,180,000		$	37,470,000		$	329,785,501

{24}	Noteholders’ Principal Distributable Amount	{24}		0			0			0			39,800,083
{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}	$	59,260,000		$	55,180,000		$	37,470,000		$	289,985,418

{29}	Note Pool Factor	{29}		100.000000	%		100.000000	%		100.000000	%		23.198833	%

EXCHANGE NOTE MONTHLY PRINCIPAL PAYMENT AND INTEREST CALCULATIONS

Principal payment calculation:

{30}

Beginning of period Designated Pool Balance

{30}

462,619,603

{31}

Ending Designated Pool Balance

{31}

422,819,520

{32}

Unpaid prior Exchange Note Principal Payment Amount

{32}

{33}

Sum of {31} + {32}

{33}

422,819,520

{34}

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

{34}

39,800,083

	Interest calculation:
		Beg Note Balance		Interest Carryover		Interest Rate			Days	Days Basis	Interest
{35}		$	414,218,556	$	0		3.38	%	30	30/360	$	1,166,716

RECONCILIATION OF EXCHANGE NOTE COLLECTION ACCOUNT

Additions:

{36}

2018-1 Designated Pool Collections (net of Liquidation Proceeds and fees)

{36}

7,592,637

{37}

Net Liquidation Proceeds collected during period

{37}

38,148,045

{38}

Investment Earnings

{38}

41,154

{39}

Investment Earnings - transferred to Indenture Note Collection Account

{39}

(41,154

)

{40}

Deposit from Servicer

{40}

{41}

Total Additions:

{41}

45,740,682

Distributions:

{42}

To the Servicer, Designated Pool Servicing Fee

{42}

385,516

{43}

To the 2018-1 Exchange Noteholder, the Exchange Note Interest Payment Amount

{43}

1,166,716

{44}

To the 2018-1 Exchange Noteholder, the Exchange Note Principal Payment Amount

{44}

39,800,083

{45}

To the 2018-1 Exchange Noteholder, any funds available to pay obligations pursuant to Indenture Section 8.3 (a)(i) through (xvii)

{45}

{46}

To the 2018-1 Exchange Noteholder, all remaining funds to be applied as Excess Exchange Note Payments

{46}

4,388,367

{47}

Total Distributions:

{47}

45,740,682

NOTEHOLDERS’ MONTHLY PRINCIPAL PAYMENT AND INTEREST CALCULATIONS

Noteholders’ Principal Distributable calculation:

{48}

Beginning Agg. Securitization Value

{48}

462,619,603

{49}

Ending Agg. Securitization Value

{49}

422,819,520

{50}

Principal Distributable Amount {48} - {49}

{50}

39,800,083

{51}

Noteholders’ Principal Carryover Amount

{51}

{52}

Principal Distributable Amount + Noteholders’ Principal Carryover Amount

{52}

39,800,083

{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}

39,800,083

{54}

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

{54}

39,800,083

	Noteholders’ Interest Distributable calculation:
	Class	Beg Note Balance		Interest Carryover		Interest Rate			Days	Days Basis	Interest
{55}	Class A-1	$	0	$	0		1.90	%	31	Actual/360	$	0
{56}	Class A-2A	$	0		0		2.39	%	30	30/360		0
{57}	Class A-2B	$	0		0		0.97288	%	31	Actual/360		0
{58}	Class A-3	$	80,785,501		0		2.61	%	30	30/360		175,709
{59}	Class A-4	$	97,090,000		0		2.68	%	30	30/360		216,835
{60}	Class B	$	59,260,000		0		2.87	%	30	30/360		141,731
{61}	Class C	$	55,180,000		0		3.11	%	30	30/360		143,009
{62}	Class D	$	37,470,000		0		3.37	%	30	30/360		105,229

RECONCILIATION OF INDENTURE COLLECTION ACCOUNT

Available Funds:

{63}

2018-1 Exchange Note Collections

{63}

45,355,166

{64}

Investment Earnings

{64}

{65}

Investment Earnings - transferred from Exchange Note Collection Account

{65}

41,154

{66}

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

{66}

4,705

{67}

Optional Purchase Price

{67}

{68}

Indenture Section 5.4 disposition of Collateral

{68}

{69}

Available Funds:

{69}

45,401,025

{70}

Reserve Account Withdrawal Amount

{70}

{71}

Total Distributable Funds:

{71}

45,401,025

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}

175,709

{80}

Class A-4 Noteholders’ Interest Distributable Amount pari passu

{80}

216,835

{81}

Class A Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{81}

{82}

Class B Noteholders’ Interest Distributable Amount

{82}

141,731

{83}

Class B Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{83}

{84}

Class C Noteholders’ Interest Distributable Amount

{84}

143,009

{85}

Class C Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{85}

{86}

Class D Noteholders’ Interest Distributable Amount

{86}

105,229

{87}

Class D Noteholders’ Principal Parity Amount or Matured Principal Shortfall

{87}

{88}

Noteholders’ Principal Distributable Amount

{88}

39,800,083

{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}

4,817,804

{96}

Total Distributions:

{96}

45,401,025

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	$	177,875,501	$	422,819,520	$	0	$	45,007,856	$	0
{98}	Class B		237,135,501		422,819,520		0		44,866,125		0
{99}	Class C		292,315,501		422,819,520		0		44,723,116		0
{100}	Class D		329,785,501		422,819,520		0		44,617,887		0

ACCELERATED PRINCIPAL AMOUNT CALCULATION

{101}

Excess Total Available Funds

{101}

4,817,804

{102}

Beginning Note Balance

{102}

329,785,501

{103}

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

{103}

39,800,083

{104}

Pro-Forma Note Balance

{104}

289,985,418

{105}

Ending Aggregate Securitization Value

{105}

422,819,520

{106}

10.75% of Aggregate Securitization Value as of Cutoff until Class A-2 is paid in full,9.75% Thereafter ($132,834,102)

{106}

132,834,102

{107}

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

{107}

289,985,418

{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}

422,819,520

{111}

End of Period Note Balance

{111}

374,418,473

{112}

Overcollateralization

{112}

48,401,047

{113}

Overcollateralization %

{113}

11.45

Asset Backed Notes:

{114}

Ending Aggregate Securitization Value

{114}

422,819,520

{115}

End of Period Note Balance

{115}

289,985,418

{116}

Overcollateralization

{116}

132,834,102

{117}

Overcollateralization %

{117}

31.42

RECONCILIATION OF 2018-1 CASH RESERVE ACCOUNT

{118}

Specified Reserve Balance

{118}

6,812,005

{119}

Beginning of Period Reserve Account balance

{119}

6,812,005

{120}

Investment Earnings

{120}

4,705

{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}

6,816,710

{124}

Specified Reserve Balance

{124}

6,812,005

{125}

Release Excess Cash to Indenture Collection Available Funds

{125}

4,705

{126}

End of period Reserve Account balance

{126}

6,812,005

ASSET REPRESENTATIONS REVIEW DELINQUENCY TRIGGER

Dollars

Percentage

{127}

Receivables with Scheduled Payment delinquent 61 days or more

{127}

2,080,663

0.49

{128}

Compliance (Trigger Violation is a Delinquency Rate Greater Than 2.90% )

{128}

Yes

By:	/s/ Ellen Billings
Name:	Ellen Billings
Title:	Senior Vice President, Controller – North America
Date:	April 15, 2020

GM Financial

GMALT 2018-1

Supplemental Monthly Data

March 31, 2020

	Aggregate Securitization Value			Residual Value
Beginning of Period	$	462,619,603		$429,030,216
Change		(39,800,083	)	(33,611,545)
End of Period	$	422,819,520		$395,418,671

Residual Value as % of Agg. Securitization Value				93.52%

Delinquency

Leases with scheduled payment delinquent	Number of Leases		Agg. Securitization Value	Percentage⁽¹⁾
0 - 30 days		20,917	416,035,248	98.40%
31 - 60 days		232	4,703,609	1.11%
61 - 90 days		82	1,671,054	0.40%
91 - 120 days		19	409,609	0.10%
Total		21,250	422,819,520	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		110		2,454,221		4,255		100,277,437
Standard terminations		169		3,004,049		1,790		31,063,334
Total retained by lessee		279		5,458,270		6,045		131,340,771
Returned Vehicles
Early terminations		772		14,594,652		15,206		262,968,648
Standard terminations		719		13,058,097		11,971		203,386,498
Total returned to dealer		1,491		27,652,749		27,177		466,355,146
Charged off leases / Repossessed vehicles		47		1,029,666		1,923		39,640,689
Repurchases		1		18,527		4		79,754
Other		0		0		0		2
Total terminations		1,818		34,159,212		35,149		637,416,362

Net Credit (Gain) Loss

	Current Period		Cumulative
Agg. Securitized Value of early term defaults		1,029,666		39,640,689
less: Sales proceeds		1,001,091		38,689,979
less: Excess wear and excess mileage received		680		11,179
less: Other amounts received		47		15,737
Net Credit (Gain) Loss		27,848		923,794

Residual (Gain) Loss on Returned Vehicles

Agg. Securitized Value of returned vehicles sold by Servicer	27,521,907		462,624,008
add: Reimbursement of outstanding residual advance	N/A		N/A
less: Sales proceeds	30,359,769		505,155,445
less: Excess wear and excess mileage received	282,556		2,366,272
less: Other recovery amounts	-		0
Residual (Gain) Loss	(3,120,418	)	(44,897,709	)

	Current Period			Prev. Month
Prepay Speed		-1.3157	%		0.4946	%

Return Rate based on Scheduled to Terminate⁽²⁾		59.9759	%		75.1181	%

Return Rate based on Terminated Leases⁽³⁾		82.0132	%		85.8686	%

(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 2018-1 10-D