Exhibit 99.1

MONTHLY SERVICER’S CERTIFICATE

CARMAX BUSINESS SERVICES, LLC

CARMAX AUTO OWNER TRUST

SERIES 2010-3


Collection Period		08/01/14-08/31/14
Determination Date		9/9/2014
Distribution Date		9/15/2014


Pool Balance

1.	Pool Balance on the close of the last day of the preceding Collection Period				$	77,222,775.10
2.	Collections allocable to Principal				$	5,876,619.39
3.	Purchase Amount allocable to Principal				$	0.00
4.	Defaulted Receivables				$	68,599.86

5.	Pool Balance on the close of the last day of the related Collection Period				$	71,277,555.85
	(Ln1 - Ln2 - Ln3 - Ln4)
6.	Total number of Receivables outstanding on the close of the last day of the related Collection Period					13,494
7.	Initial Pool Balance				$	650,000,011.40

			Beginning of Period		End of Period
8.	Note Balances
	a.	Class A-1 Note Balance	$	0.00	$	0.00
	b.	Class A-2 Note Balance	$	0.00	$	0.00
	c.	Class A-3 Note Balance	$	0.00	$	0.00
	d.	Class A-4 Note Balance	$	33,347,775.07	$	27,402,555.82
	e.	Class B Note Balance	$	16,900,000.00	$	16,900,000.00
	f.	Class C Note Balance	$	17,225,000.00	$	17,225,000.00
	g.	Class D Note Balance	$	8,125,000.00	$	8,125,000.00

	h.	Note Balance (sum a - g)	$	75,597,775.07	$	69,652,555.82

9.	Pool Factors

	a.	Class A-1 Note Pool Factor		0.0000000		0.0000000
	b.	Class A-2 Note Pool Factor		0.0000000		0.0000000
	c.	Class A-3 Note Pool Factor		0.0000000		0.0000000
	d.	Class A-4 Note Pool Factor		0.3066462		0.2519775
	e.	Class B Note Pool Factor		1.0000000		1.0000000
	f.	Class C Note Pool Factor		1.0000000		1.0000000
	g.	Class D Note Pool Factor		1.0000000		1.0000000

	h.	Note Pool Factor		0.1163043		0.1071578

10.	Overcollateralization Target Amount				$	1,625,000.03

11.	Current overcollateralization amount (Pool Balance - Note Balance)				$	1,625,000.03

12.	Weighted Average Coupon				%	9.41	%
13.	Weighted Average Original Term				months	68.47
14.	Weighted Average Remaining Term				months	18.97

Collections

15.	Finance Charges:
	a.	Collections allocable to Finance Charge			$	659,259.94
	b.	Liquidation Proceeds allocable to Finance Charge			$	1,645.28
	c.	Purchase Amount allocable to Finance Charge			$	0.00

	d.	Available Finance Charge Collections (sum a - c)			$	660,905.22

16.	Principal:
	a.	Collections allocable to Principal			$	5,876,619.39
	b.	Liquidation Proceeds allocable to Principal			$	90,528.68
	c.	Purchase Amount allocable to Principal			$	0.00

	d.	Available Principal Collections (sum a - c)			$	5,967,148.07

17.	Total Finance Charge and Principal Collections (15d+16d)				$	6,628,053.29
18.	Interest Income from Collection Account				$	330.14
19.	Simple Interest Advances				$	0.00

20.	Available Collections (Ln17+18+19)				$	6,628,383.43



Available Funds

21.	Available Collections		$	6,628,383.43
22.	Reserve Account Draw Amount		$	0.00

23.	Available Funds		$	6,628,383.43

Application of Available Funds

24.	Servicing Fee
	a.	Monthly Servicing Fee	$	64,352.31
	b.	Amount Unpaid from Prior Months	$	0.00
	c.	Amount Paid	$	64,352.31

	d.	Shortfall Amount (a + b - c)	$	0.00

25.	Unreimbursed Servicer Advances		$	0.00

26.	Backup Servicing Fees and Unpaid Transition Expenses
	a.	Monthly Servicing Fee	$	2,500.00
	b.	Unpaid Transition Expenses and Indemnity Amounts (Capped at $175,000)	$	0.00
	c.	Other Unpaid Backup Servicing Fees	$	0.00
	d.	Amount Paid	$	2,500.00

	e.	Shortfall Amount (a + b + c - d)	$	0.00

27.	Class A Noteholder Interest Amounts
	a.	Class A-1 Monthly Interest	$	0.00
	b.	Additional Note Interest related to Class A-1 Monthly Interest	$	0.00
	c.	Interest Due on Additional Note Interest related to Class A-1 Monthly Interest	$	0.00

	d.	Total Class A-1 Note Interest (sum a - c)	$	0.00

	e.	Class A-2 Monthly Interest	$	0.00
	f.	Additional Note Interest related to Class A-2 Monthly Interest	$	0.00
	g.	Interest Due on Additional Note Interest related to Class A-2a Monthly Interest	$	0.00

	h.	Total Class A-2 Note Interest (sum e - g)	$	0.00

	i.	Class A-3 Monthly Interest	$	0.00
	j.	Additional Note Interest related to Class A-3 Monthly Interest	$	0.00
	k.	Interest Due on Additional Note Interest related to Class A-3 Monthly Interest	$	0.00

	l.	Total Class A-3 Note Interest (sum i - k)	$	0.00

	m.	Class A-4 Monthly Interest	$	39,183.64
	n.	Additional Note Interest related to Class A-4 Monthly Interest	$	0.00
	o.	Interest Due on Additional Note Interest related to Class A-4 Monthly Interest	$	0.00

	p.	Total Class A-4 Note Interest (sum m - o)	$	39,183.64

28.	Priority Principal Distributable Amount		$	0.00

29.	Class B Noteholder Interest Amount
	a.	Class B Monthly Interest	$	28,166.67
	b.	Additional Note Interest related to Class B Monthly Interest	$	0.00
	c.	Interest Due on Additional Note Interest related to Class B Monthly Interest	$	0.00

	d.	Total Class B Note Interest (sum a - c)	$	28,166.67

30.	Secondary Principal Distributable Amount		$	0.00

31.	Class C Noteholder Interest Amount
	a.	Class C Monthly Interest	$	37,177.29
	b.	Additional Note Interest related to Class C Monthly Interest	$	0.00
	c.	Interest Due on Additional Note Interest related to Class C Monthly Interest	$	0.00

	d.	Total Class C Note Interest (sum a - c)	$	37,177.29

32.	Tertiary Principal Distributable Amount		$	0.00

33.	Class D Noteholder Interest Amount
	a.	Class D Monthly Interest	$	24,239.58
	b.	Additional Note Interest related to Class D Monthly Interest	$	0.00
	c.	Interest Due on Additional Note Interest related to Class D Monthly Interest	$	0.00

	d.	Total Class D Note Interest (sum a - c)	$	24,239.58

34.	Quaternary Principal Distributable Amount		$	4,320,219.22

35.	Required Payment Amount (Ln 24 + Ln 26 + (sum of Ln 27 through Ln 34))		$	4,515,838.71

36.	Reserve Account Deficiency		$	0.00

37.	Regular Principal Distributable Amount		$	1,625,000.03

38.	Remaining Unpaid Servicer Transition Expenses, if any		$	0.00



39.	Additional Servicing Fees, if any		$	0.00

40.	Remaining Unpaid Backup Servicer Indemnity Amounts, if any		$	0.00

Collection Account Activity

41.	Deposits
	a.	Total Daily Deposits of Finance Charge Collections	$	660,905.22
	b.	Total Daily Deposits of Principal Collections	$	5,967,148.07
	c.	Withdrawal from Reserve Account	$	0.00
	d.	Interest Income	$	330.14

	e.	Total Deposits to Collection Account (sum a - d)	$	6,628,383.43

42.	Withdrawals
	a.	Servicing Fee and Unreimbursed Servicer Advances	$	64,352.31
	b.	Backup Servicing Fee and Unreimbursed Backup Servicer Advances	$	2,500.00
	c.	Deposit to Note Payment Account for Monthly Note Interest/Principal	$	6,073,986.43
	d.	Deposit to Reserve Account	$	0.00
	e.	Excess Collections (Deposit to Certificate Payment Account for payment to Certificateholder)	$	487,544.69

	f.	Total Withdrawals from Collection Account (sum a - e)	$	6,628,383.43

Note Payment Account Activity

43.	Deposits
	a.	Class A-1 Interest Distribution	$	0.00
	b.	Class A-2 Interest Distribution	$	0.00
	c.	Class A-3 Interest Distribution	$	0.00
	d.	Class A-4 Interest Distribution	$	39,183.64
	e.	Class B Interest Distribution	$	28,166.67
	f.	Class C Interest Distribution	$	37,177.29
	g.	Class D Interest Distribution	$	24,239.58
	h.	Class A-1 Principal Distribution	$	0.00
	i.	Class A-2 Principal Distribution	$	0.00
	j.	Class A-3 Principal Distribution	$	0.00
	k.	Class A-4 Principal Distribution	$	5,945,219.25
	l.	Class B Principal Distribution	$	0.00
	m.	Class C Principal Distribution	$	0.00
	n.	Class D Principal Distribution	$	0.00

	o.	Total Deposits to Note Payment Account (sum a - n)	$	6,073,986.43

44.	Withdrawals
	a.	Class A-1 Distribution	$	0.00
	b.	Class A-2 Distribution	$	0.00
	c.	Class A-3 Distribution	$	0.00
	d.	Class A-4 Distribution	$	5,984,402.89
	e.	Class B Distribution	$	28,166.67
	f.	Class C Distribution	$	37,177.29
	g.	Class D Distribution	$	24,239.58

	h.	Total Withdrawals from Note Payment Account (sum a - g)	$	6,073,986.43

Certificate Payment Account Activity

45.	Deposits
	a.	Excess Collections	$	487,544.69
	b.	Reserve Account surplus (Ln 55)	$	89.67

	c.	Total Deposits to Certificate Payment Account (sum a - b)	$	487,634.36

46.	Withdrawals
	a.	Certificateholder Distribution	$	487,634.36

	b.	Total Withdrawals from Certificate Payment Account	$	487,634.36

Required Reserve Account Amount

47.	Lesser of: (a or b)
	a.	$1,625,000.00	$	1,625,000.00
	b.	Note Balance	$	69,652,555.82

48.	Required Reserve Account Amount		$	1,625,000.00



Reserve Account Reconciliation

49.	Beginning Balance (as of end of preceding Distribution Date)				$	1,625,000.00
50.	Investment Earnings				$	89.67
51.	Reserve Account Draw Amount				$	0.00

52.	Reserve Account Amount (Ln 49 + Ln 50 - Ln 51)				$	1,625,089.67
53.	Deposit from Available Funds (Ln 42d)				$	0.00
54.	If Reserve Account Balance exceeds Required Reserve Account Amount, payment to
	a.	the Note Payment Account for the payment of principal to the extent of any unfunded Regular Principal Distribution Amount; and			$	0.00
	b.	any Successor Servicer for the payment of any unfunded Transition Costs and Additional Servicing Fee			$	0.00
55.	Payment to Certificateholder if Reserve Account Balance exceeds Required Reserve Account Amount and to the extent no unfunded amounts described in Ln 54 exist				$	89.67

56.	Ending Balance (Ln52 + Ln53 - Ln54 - Ln55)				$	1,625,000.00
57.	Reserve Account Deficiency (Ln48 - Ln56)				$	0.00

Instructions to the Trustee

58.	Amount to be deposited from the Reserve Account into the Collection Account				$	0.00
59.	Amount to be paid to Servicer from the Collection Account				$	64,352.31
60.	Amount to be paid to Backup Servicer from the Collection Account				$	2,500.00
61.	Amount to be deposited from the Collection Account into the Note Payment Account				$	6,073,986.43
62.	Amount to be deposited from the Collection Account into the Certificate Payment Account				$	487,544.69
63.	Amount to be deposited from the Collection Account into the Reserve Account				$	0.00
64.	Amount to be deposited from the Reserve Account, if Reserve Account Balance exceeds Required Reserve Account Amount, into
	a.	the Note Payment Account for any unfunded Regular Principal Distributable Amount			$	0.00
	b.	the Certificate Payment Account for payment to the Certificateholder, if no unfunded Regular Principal distributable amount exists			$	89.67
65.	Amount to be paid to Class A-1 Noteholders from the Note Payment Account				$	0.00
66.	Amount to be paid to Class A-2 Noteholders from the Note Payment Account				$	0.00
67.	Amount to be paid to Class A-3 Noteholders from the Note Payment Account				$	0.00
68.	Amount to be paid to Class A-4 Noteholders from the Note Payment Account				$	5,984,402.89
69.	Amount to be paid to Class B Noteholders from the Note Payment Account				$	28,166.67
70.	Amount to be paid to Class C Noteholders from the Note Payment Account				$	37,177.29
71.	Amount to be paid to Class D Noteholders from the Note Payment Account				$	24,239.58
72.	Amount to be paid to Certificateholders from the Certificate Payment Account with respect to Excess Collections and Reserve Account surplus				$	487,634.36

Net Loss and Delinquency Activity

73.	Net Losses with respect to preceding Collection Period				$	-23,574.10
74.	Cumulative Net Losses				$	8,444,323.42
75.	Cumulative Net Loss Percentage					1.2991	%

			Number of Loans		Principal Balance
76.	Delinquency Analysis
	a.	31 to 60 days past due		428	$	3,259,363.74
	b.	61 to 90 days past due		139	$	1,074,869.81
	c.	91 or more days past due		36	$	313,140.29

	d.	Total Past Due (sum a - c)		603		4,647,373.84

Servicer Covenant

77.	CarMax, Inc Consolidated Tangible Net Worth as of the end of the Related Fiscal Quarter				$	3,319,291,000.00
78.	Is CarMax, Inc Consolidated Tangible Net Worth greater than $1,000,000,000?					Yes

IN WITNESS WHEREOF, the undersigned has duly executed this certificate on September 09, 2014.


CARMAX BUSINESS SERVICES, LLC

As Servicer

By:		/s/ Andrew J. McMonigle

Name:		Andrew J. McMonigle

Title:		Treasurer

CarMax Auto Owner Trust 2010-3 10-D