Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Barra Mary T
  2. Issuer Name and Ticker or Trading Symbol
General Motors Co [GM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice President
(Last)
(First)
(Middle)
300 RENAISSANCE CENTER, M/C: 482-C25-A36
3. Date of Earliest Transaction (Month/Day/Year)
12/31/2010
(Street)

DETROIT, MI 48265-3000
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock (1) 12/31/2010   M   1,386 (2) A $ 0 (3) 2,186 D  
Common Stock 12/31/2010   D   883 D $ 36.77 (3) 1,303 D  
Common Stock 12/31/2010   F   503 D $ 36.77 (3) 800 D  
Common Stock (4) 12/31/2010   A   18,131 A $ 0 (4) 18,931 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Salary Stock Units (1) (3) 12/31/2010   M     1,386 (2)   (1)   (1) Common Stock 1,386 (2) (3) 2,766 (2) D  
Salary Stock Units (5) (3) 12/31/2010   A   6,352     (5)   (5) Common Stock 6,352 $ 0 (5) 6,352 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Barra Mary T
300 RENAISSANCE CENTER
M/C: 482-C25-A36
DETROIT, MI 48265-3000
      Vice President  

Signatures

 /s/ Anne T. Larin, attorney-in-fact for Ms. Barra   01/04/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The Common Stock reported in this item was issued upon the settlement of a portion of a grant of Salary Stock Units ("SSUs) awarded on December 31, 2009 pursuant to the Company's Salary Stock Plan (the "GMSSP") and vested upon grant. The portion of this award currently payable was settled on December 31, 2010 in cash, less a portion withheld for taxes.
(2) On December 31, 2009 the employee received a grant of 1,386 SSUs, of which 462 SSUs were scheduled to be payable on December 31, 2010. On November 1, 2010 the Company amended its certificate of incorporation to effect a stock split in which each issued and outstanding share of Common Stock was converted into three shares of Common Stock. Pursuant to the terms of the GMSSP, each issued and outstanding SSUs was automatically converted into three SSUs, so that the employee was credited with a total of 4,152 SSUs granted on December 31, 2009, of which 1,386 SSUs became payable on December 31, 2010.
(3) The SSUs do not have an expiration or exercise date or carry a conversion or exercise price. Each SSU is the economic equivalent of one share of the Company's common stock. Under the GMSSP, the fair value of the Company's common stock is the average of the high and low trading prices for the Company's common stock as reported on the New York Stock Exchange, on which the Company's common stock is listed, on the date of the transaction, which was $36.77.
(4) The Common Stock reported in this item was granted under the Company's 2009 Long-Term Incentive Plan on December 31, 2010. These shares were fully vested upon grant but are subject to restrictions on transfer until December 31, 2013.
(5) The SSUs reported in this item were awarded on December 31, 2010 pursuant to the Company's Salary Stock Plan (the "GMSSP"), and will be settled in three equal, annual installments beginning on December 31, 2011. Each SSU is fully vested and represents a right to receive one share of the Company's common stock on the applicable settlement date; provided, however, that if a settlement date occurs prior to the date that is six months following a consummation of an initial public offering of the Company's common stock, which occurred on November 17, 2010, the SSU will be settled by the delivery of cash (with certain exceptions) in an amount equal to the Fair Market Value (as defined in the GMSSP) of the Company's common stock as of the applicable anniversary date of the SSU's grant. The SSUs do not have an expiration or exercise date.

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