Pricing Supplement Dated October 23,2001 Rule 424(b)(3) (To Prospectus Dated February 20, 2001) File No. 333-55440 GENERAL MOTORS ACCEPTANCE CORPORATION Medium-Term Notes - Floating Rate ---------------------------------------------------------------------------- Agent: UBS Warburg Principal Amount: $45,000,000.00 Agent's Discount or Commission: $22,500.00 Net Proceeds to Company: $44,977,500.00 Initial Interest Rate: Reset on the Issue Date (also an Interest Reset Date). Issue Date: 10/23/01 Maturity Date: 10/23/02 ---------------------------------------------------------------------------- Calculation Agent: GMAC Interest Calculation: /X/ Regular Floating Rate Note Interest Rate Basis: / / CD Rate / / Commercial Paper Rate / / Prime Rate / / Federal Funds Rate /X/ LIBOR (see below) / / Treasury Rate / / Other (see attached) If LIBOR, Designated LIBOR Page / / Reuters Page: / / or /X/ Telerate Page: 3750 Interest Reset Dates: Each January 23, April 23, July 23, and October 23. The first interest reset date will be October 23, 2001. The final reset date will be July 23, 2002. Interest Payment Dates: Each January 23, April 23, July 23, and October 23 commencing January 23, 2002 and ending October 23, 2002. Index Maturity: 3 Months Spread (+/-): +1.20% Day Count Convention: /X/ Actual/360 for the period from 10/23/01 to 10/23/02 / / Actual/Actual for the period from / / to / / / / 30/360 for the period from / / to / / Redemption: /X/ The Notes cannot be redeemed prior to the Stated Maturity Date. / / The Notes may be redeemed prior to Stated Maturity Date. / / Initial Redemption Date: Initial Redemption Percentage: ___% Annual Redemption Percentage Reduction: ___% until Redemption Percentage is 100% of the Principal Amount. Repayment: /X/ The Notes cannot be repaid prior to the Maturity Date. / / The Notes can be repaid prior to the Maturity Date at the option of the holder of the Notes. (See Below) / / Optional Repayment Date(s): Repayment Price: % Currency: Specified Currency: U.S. (If other than U.S. dollars, see attached) Minimum Denominations: ___________ (Applicable only if Specified Currency is other than U.S. dollars) Original Issue Discount: / / Yes /X/ No Total Amount of OID: Yield to Maturity: Initial Accrual Period: Form: /X/ Book-Entry / / Certificated Other: /X/ Principal / / Agent If as principal: / / The Notes are being offered at varying prices related to prevailing market prices at the time of resale. /X/ The Notes are beings offered at a fixed initial public offering price of 100% of principal amount. If as agent: The Notes are being offered at a fixed initial public offering price of XX% of principal amount.