This was posted by Levi Smith Yahoo Toyota-prius Message #114309 Tue Aug 11, 2009 and I am copying it to this group. If you have a 2001 2002 or 2003 Prius and you got the letter, Ma Toyota knows who you are. If no letter consider checking in with them, with the VIN. Then you'll recive this sort of thing directly. I believe the correct URL to reggister your VIN, name and address is: https://auth.toyotaownersonline.com/Owners/ssl/nonauth/cssp/updateOwnership.do The text below seems unclear as to whether they will do much more than clean out the air induction system for free. +++ 2001 through 2003 Model Year Prius Warranty Enhancement Notification for Specific Malfunction Indicator Light "ON" Diagnostic Codes Dear Toyota Owner: At Toyota, we are dedicated to providing vehicles of outstanding quality and value. As part of our continuing efforts to meet your product expectations, Toyota would like to advise you of an enhancement to portions of your vehicle's existing Toyota New vehicle Limited Warranty as specified in this letter. Toyota cares about our customers Toyota has received reports that certain 2001 though 2003 model year Prius vehicles may exhibit a Malfunction Indicator Light (check engine light) illumination with diagnostic codes P3190 & P3101 with information code 204 or diagnostic codes P3191 & P3101 with information code 205. We at Toyota care about your overall experience with your vehicle. To assure you that we stand behind our product, we are offering an enhancement of the warranty coverage on your vehicle for this specific condition. This warranty enhancement is offered or a period of 10 years or 120,000 miles from the vehicle's in-service date, whichever comes first, for illumination of the Malfunction Indicator Light (check engine light) with the following codes: -Diagnostic codes P3190 & P3101 with information code 204 or -Diagnostic codes P3191 & P3101 with information code 205 Should you experience this condition any Toyota dealer will repair your vehicle at no charge to you under this warranty enhancement. Please note that in the majority of cases, the repair will only require the cleaning of the Throttle Body, which is covered under this Warranty Enhancement. This offer is limited to your specific vehicle whose Vehicle Identification Number (VIN) is printed above and is subject to the same conditions set forth in your Owner's Warranty Information booklet, with the exception of this warranty coverage enhancement. Damage incurred from abuse, a crash, vandalism and/or other impact is not covered by the New Vehicle Limited Warranty or this warranty enhancement. Please note that this coverage is for warranty work performed at an authorized Toyota dealer only. What should you do? If you have not experienced this condition, please insert this letter into your Owner's Warranty Information booklet for future reference. In the event that this condition has occurred on your vehicle, you may notice the illumination of the Malfunction Indicator Light (check engine light) with diagnostic codes P3190 & P3101 with information code 204 or diagnostic codes P3191 & P3101 with information code 205. In addition, your vehicle's engine may exhibit abnormally low power or may not start even if your 12 volt and Hybrid batteries are fully charged. If this should occur, contact any Toyota dealer and make arrangements for diagnosis and, if applicable, repair. Please present this notice to the Toyota dealer when you bring the vehicle in for your appointment. If you would like to update your vehicle ownership or contact information, please go to www.toyota.com/ownersupdate You will need your full 17-digit Vehicle Identification Number (VIN) to input the new information. What if you have previously paid for the repair of your vehicle for this specific condition as it applies to your 2001 through 2003 model year Prius vehicle? If you have previously paid to repair your vehicle (VIN noted above) for a Malfunction Indicator Light (check engine light) illumination with diagnostic codes P3190 & P3101 with information code 204 or diagnostic codes P3191 & P3101 with information code 205, during the applicable period, please mail a copy of your repair order which includes the reason for the repair/replacement, proof-of-payment, and proof-of-ownership to the following adress for reimbursement consideration: Toyota Motor Sales, U.S.A., Inc. Toyota Customer Experience, WC 10 19001 South Western Avenue, Torrance, CA 90509 Include your name, address and telephone number(s) in your request. Please allow 4-6 weeks to process your request. We have sent this notice in the interest of your continued satisfaction with our products. Sincerely, TOYOTA MOTOR SALES, U.S.A., INC.