UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                            Washington, DC 20549-1004



                                    FORM 8-K

                                 CURRENT REPORT
                       PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934



          Date of Report (Date of earliest event reported) May 26, 2005



                           GENERAL MOTORS CORPORATION
                           --------------------------
             (Exact Name of Registrant as Specified in its Charter)



         STATE OF DELAWARE                  1-143           38-0572515
         -----------------                  -----           ----------
     (State or other jurisdiction of     (Commission     (I.R.S. Employer
     Incorporation or Organization)      File Number)   Identification No.)

     300 Renaissance Center,                              48265-3000
     Detroit, Michigan                                     (Zip Code)
     ----------------------------------------------------------------------
                    (Address of Principal Executive Offices)



        Registrant's telephone number, including area code (313) 556-5000
                                                           --------------








================================================================================

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act 
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
    240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the 
    Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the 
    Exchange Act (17 CFR 240.13e-4(c))







ITEM 8.01.  OTHER EVENTS

On May 26, 2005, Dominion Bond Rating Service (DBRS) downgraded General Motors
Corporation and General Motors of Canada Limited, and General Motors Acceptance
Corporation. Their press releases follow.


General Motors Corporation & General Motors of Canada Limited
Downgrades to BBB (low) and R-2 (low), Trends Remain Negative
Date of Release: May 26, 2005

Issuer                       Debt Rated         Rating        Rating    Trend
                                                Action
-------------------------------------------------------------------------------
General Motors Corporation   Commercial         Downgraded    R-2       Neg
                             Paper                            (low)
-------------------------------------------------------------------------------
General Motors of Canada     Commercial         Downgraded    R-2       Neg
Limited                      Paper                            (low)
-------------------------------------------------------------------------------
General Motors Corporation   Long-Term Debt     Downgraded    BBB       Neg
                                                              (low)
-------------------------------------------------------------------------------
General Motors Corporation   Convertible        Downgraded    BBB       Neg
                             Debentures                       (low)y
-------------------------------------------------------------------------------
General Motors Corporation   Ind. Dev.          Downgraded    BBB       Neg.
                             Empower. Zone                    (low)
                             Rev. Bds., S2004
                             (Issued by NYC Ind.
                             Dev. Agency,
                             Guar. By GMC)
-------------------------------------------------------------------------------
General Motors of Canada     Long-Term Debt     Downgraded    BBB       Neg
Limited                                                       (low)
-------------------------------------------------------------------------------
Dominion Bond Rating Service ("DBRS") has today downgraded the ratings on
General Motors Corporation ("GM" or the "Company") and General Motors of Canada
Limited as indicated above. The trends remain Negative.

Since the last rating actions on March 16, 2005, the Company's North American
operating performance continued to be weak with declining shipment and market
share. The Company has withdrawn its lowered earnings (excluding special items)
guidance of US$1 to US$2 per share for 2005 as well as its operating cash flow
target of a deficit of US$2 billion in 2005, before the Fiat S.p.A. ("Fiat")
settlement. Although sales of new models are gathering momentum, they are not
sufficient to stabilize GM's market share loss. The continuing sharp decline in
the sales of large sport-utility vehicles (SUVs) and the recent slowing sales of
pick-up trucks, GM's most profitable segments, are worrying developments, and
GM's profitability in 2005 could be well below DBRS's expectation at the time of
the most recent rating action. In addition, the downgrade of the Commercial
Paper rating from R-2 (high) to R-2 (low) reflects GM's much reduced access to
the unsecured markets. Recent negative rating actions have driven up borrowing
costs significantly for GM making borrowing in the unsecured market uneconomic,
although GM still has good access to the secured markets.

Structural factors contributing to the deterioration at the automotive
operations have remained and are as follows:

(1) The Company has not been able to stabilize market share loss despite a
    number of new model introductions.
(2) Ongoing use of high sales incentives to support sales in response to
    competitive pressure erodes profit margins. Although the Company has 
    exercised restraint recently, GM remains the most aggressive in the use 
    of incentives.
(3) High gasoline prices have contributed to a shift to smaller SUVs from the
    more profitable large SUVs, which further depresses profit. The aging of
    the product line (the last year of the large SUV product cycle) adds to
    the challenge.
(4) The large legacy costs (pension and post-retirement benefits) continue to
    depress earnings at GM. The Company has limited success in controlling 
    health care inflation, with expenses expected to increase by US$1 billion
    on a year-over-year basis. The recent sharp rise in commodity prices (steel
    and resin) further increases the cost base.
(5) GM still has too much capacity in its North American operations despite
    ongoing downsizing efforts. Slowing sales and higher than normal dealer
    inventory is likely to weigh on production and worsen the already low 
    capacity utilization




Nevertheless, the current ratings are supported by the following factors:

(1) GM is on the verge of launching new products based on the new T900 platform.
    The brand new large SUVs (in 2006) and pick-up trucks (in 2007) are GM's
    largest and most profitable products. The success of these vehicles may be 
    able to mitigate the deteriorating performance at its North American
    operations.
(2) GM continues to have strong liquidity (gross cash including short-term VEBA
    at US$19.8 billion at the end of March 2005) even though based on DBRS's
    estimates the near-term deficit in free cash flow and the Fiat settlement
    would lower the cash position. A modest debt maturity schedule (average
    debt maturity of 19 years) adds to financial flexibility. The North America
    pension plans are fully funded and have no need for further contributions.
(3) GM has a highly profitable finance subsidiary, General Motors Acceptance
    Corporation ("GMAC").  GMAC is expected to continue to keep GM profitable 
    on a consolidated basis despite a rising interest rates environment as well
    as higher borrowing costs, and is a source of liquidity through dividend
    payments.

Hence, DBRS believes that GM is still investment grade.

The Negative trends reflect that GM continues to face significant challenges in
the near to medium term. Competition is expected to remain intense, and the
continuing favourable demand for automobiles in North America is uncertain. More
importantly, the execution of the T900 platform launch will be critical. Any
problems and delays in introducing the new products could be critical to the
turnaround of GM's North American operations. Furthermore, rising gasoline
prices and increasing competition in the large SUV and pick-up segments by the
Asian manufacturer could limit the success of the new products.


Note:
y - This security has certain unique covenants that give it equity-like 
    characteristics







GMAC & Related Subsidiaries Downgrades to BBB, R-2 (middle), Trend Negative
Date of Release: May 26, 2005

Issuer                Debt Rated           Rating       Rating            Trend
                                           Action
-------------------------------------------------------------------------------
General Motors        Commercial Paper     Downgraded   R-2 (middle)      Neg
Acceptance
Corporation
-------------------------------------------------------------------------------
General Motors        Commercial Paper     Downgraded   R-2 (middle)
Acceptance                                                                Neg
Corporation (N.Z.)
Limited
-------------------------------------------------------------------------------
General Motors        Commercial Paper     Downgraded   R-2 (middle)      Neg
Acceptance 
Corporation (U.K.)
plc
-------------------------------------------------------------------------------
General Motors        Commercial Paper     Downgraded   R-2 (middle)      Neg
Acceptance            (guar. by GMAC) 
Corporation of
Canada, Limited
-------------------------------------------------------------------------------
General Motors        Commercial Paper     Downgraded   R-2 (middle)      Neg
Acceptance  
Corporation Australia
-------------------------------------------------------------------------------
GMAC Bank GmbH        Commercial Paper     Downgraded   R-2 (middle)      Neg
-------------------------------------------------------------------------------
GMAC Commercial       Commercial Paper     Downgraded   R-2 (middle)      Neg
Mortgage Bank
Europe, plc
-------------------------------------------------------------------------------
GMAC Commercial       Commercial Paper     Downgraded   R-2 (middle)      Neg
Mortgage Funding  
Asia K.K.
-------------------------------------------------------------------------------
GMAC Commercial       Commercial Paper     Downgraded   R-2 (middle)      Neg
Mortgage Funding, plc
-------------------------------------------------------------------------------
GMAC International    Commercial Paper     Downgraded   R-2 (middle)      Neg
Finance B.V.  
-------------------------------------------------------------------------------
GMAC, Australia       Commercial Paper     Downgraded   R-2 (middle)      Neg
(Finance) Limited 
-------------------------------------------------------------------------------
General Motors        Long-Term Debt       Downgraded   BBB               Neg
Acceptance    
Corporation
-------------------------------------------------------------------------------
General Motors        Medium &             Downgraded   BBB               Neg
Acceptance            Long-Term Debt
Corporation (N.Z.)
Limited
-------------------------------------------------------------------------------
General Motors        Notes &              Downgraded   BBB               Neg
Acceptance            Debentures (guar. 
Corporation of        by GMAC) 
Canada, Limited
-------------------------------------------------------------------------------
General Motors        Medium &             Downgraded   BBB               Neg
Acceptance            Long-Term Debt
Corporation,
Australia
-------------------------------------------------------------------------------
GMAC Bank GmbH        Medium &             Downgraded   BBB               Neg
                      Long-Term Debt
-------------------------------------------------------------------------------
GMAC Commercial       Medium &             Downgraded   BBB               Neg
Mortgage funding      Long-Term Debt   
Asia, K.K.
-------------------------------------------------------------------------------
GMAC Commercial       Long-Term Debt       Downgraded   BBB               Neg
Mortgage Funding plc
-------------------------------------------------------------------------------
GMAC International    Medium &             Downgraded   BBB               Neg
Finance B.V.          Long-Term Debt
-------------------------------------------------------------------------------


Dominion Bond Rating Service ("DBRS") has today downgraded the long-term debt
ratings of General Motors Acceptance Corporation ("GMAC") and its subsidiaries
to BBB from BBB (high), and the Commercial Paper ratings have been downgraded to
R-2 (middle) from R-1 (low). The trends remain Negative.



This rating action is entirely due to DBRS's downgrade of the long-term debt
rating on General Motors Corporation ("GM"), to BBB (low) from BBB and the
Commercial Paper rating to R-2 (low) from R-2 (high). The rating trend for GM
also remains Negative. The rating action on GM reflects the deterioration in its
automotive operating performance, and the significant structural challenges
facing GM going forward. (See the separate concurrent DBRS press release for
General Motors Corporation.)

DBRS policies allow for a captive finance company to be rated modestly higher
than its parent. As such, DBRS currently rates debt of GMAC one notch higher
than that of GM, reflecting numerous considerations based on the following key
points: (1) The value and first claim ability of the captive assets; (2) The
relationship between GMAC and its parent GM; (3) The stand-alone strength of
GMAC; and (4) Where the ratings are in the rating spectrum.

GMAC has continued to demonstrate favourable earnings performance through 2004
and into 2005. The earnings contribution has been broad-based with solid
performance from the auto finance operations, mortgage operations, and sharply
higher insurance profits. DBRS anticipates moderately reduced performance for
2005, but at continued respectable levels.

Overall, liquidity, asset quality, and capital considerations remain
respectable. GMAC has more than sufficient maturing receivables to meet maturing
debt obligations. Access to other diversified funding sources, including whole
loan sales, provide alternatives. In addition, management is considering various
options that could monetize some of the value in certain operating units.

However, GMAC is challenged by rising funding costs, reduced access to unsecured
debt markets at a reasonable cost, and rising interest rates in general. The
impact of increased reliance on secured financing, whole loan sales, and a
declining receivable portfolio helps provide an offset, but may have negative
implications. Firstly, the reduction in unencumbered assets may reduce asset
coverage available to holders of unsecured debt, unless there is a commensurate
decline in unsecured debt. Also, with a downsized receivable portfolio, fixed
costs of operating the business are spread over a smaller asset base, thereby
affecting profitability.

First and foremost, however, GMAC is impacted by the credit strength of its
parent.

                                      # # #



                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                          GENERAL MOTORS CORPORATION
                                          --------------------------
                                          (Registrant)

Date:   May 31, 2005                 By:  /s/PETER R. BIBLE
                                     ---  -----------------
                                          (Peter R. Bible, 
                                           Chief Accounting Officer)