SB-09-037

CSC-10040492--4288
November 2010
Product Update: Important Transmission Software Update for Your Acura
Dear MDX Owner:
This letter is to inform you of the need to have an Acura dealer update the software that controls the
transmission in your vehicle. This update will help your transmission operate properly, helping to assure
longer life.
You may have received a similar letter from us in December, 2009 that also required a transmission
software update. Even if you have already had that repair performed, this update is still necessary, as it
includes the previous changes and additional reprogramming.
We apologize for any inconvenience this may cause you, but the update is important for your MDX. The
purpose of this software change is to reduce a condition called “transmission judder” or vibration that may
occur while driving between 20 and 45 MPH. Even if you have not noticed transmission judder in your
vehicle, this software update may help prevent it from occurring later in the life of your vehicle. This can
help prevent your transmission from being damaged.
What should you do?
Contact any authorized Acura dealer to schedule an appointment. If you need help locating your
local dealer, go to www.acura.com or call Acura Client Services at 800-382-2238, and select option 4.
The dealer will update the automatic transmission software free of charge. Please plan to leave your
vehicle at the dealer for half a day to allow some flexibility in scheduling. If you cannot leave your vehicle
for half a day, please contact the dealer to discuss other options.
What to do if you feel this notice is in error
Our records show that you are the current owner or lessee of a 2005 or 2006 MDX involved in this
product update. If this is not the case, or the name/address information is not correct, please fill out and
return the enclosed, postage-paid Information Change Card. We will then update our records.
This product update ends on November 12, 2013. After that, any applicable warranty will apply.
Thank you for your attention to this matter. Our goal is to ensure that your vehicle continues to be as
reliable and enjoyable as possible.
Sincerely,
American Honda Motor Co., Inc.
Acura Automobile Division
Si usted necesita esta información en español por favor comuníquese con Servicio al Client al 800-
y seleccione la opción 4

CSC-10040492-7303
Si usted necesita esta información en español por favor comuníquese con Servicio al Client al 800-
y seleccione la opción 4

CSC-10040492-3669
December 2009
Product Update: Important Transmission Software Update Is Needed
Dear MDX Owner:
This letter is to notify you of a potential problem with your vehicle and why it is important to have your
Acura dealer repair your vehicle within the next three months.
What is the problem?
A transmission judder (vibration) may sometimes be felt while driving between 20–45 mph. To minimize
the opportunity for judder to occur, a software update for the transmission is available. If you do not feel
the transmission judder, the software update may help to prevent it from occurring. If the transmission
software is not updated soon, the transmission may become damaged.
What should you do?
Contact any authorized Acura dealer for an appointment to have your vehicle updated. The dealer will
update the automatic transmission software free of charge. Please plan to leave your vehicle at the dealer
for half a day to allow some flexibility in scheduling. If you cannot leave your vehicle for half a day, please
contact the dealer to discuss other options.
Because it is important to complete this repair, we are asking you to schedule your service
appointment by March 31, 2010. After that, this repair will only be free of charge if your vehicle is still
covered by an applicable warranty.
What to do if you feel this notice is in error
Our records show that you are the current owner or lessee of a 2005 or 2006 MDX involved in this
product update. If this is not the case, or the name/address information is not correct, please fill out and
return the enclosed, postage-paid Information Change Card. We will then update our records.
If you have questions
If you have questions about this notice, or need help contacting an Acura dealer, please call Acura Client
Services at 800-382-2238.
We apologize for any inconvenience this product update may cause you. Our goal is to ensure that your
vehicle continues to be as reliable and enjoyable as possible.
Sincerely,
American Honda Motor Co., Inc.
Acura Automobile Division
Si usted necesita esta información en español por favor comuníquese con Servicio al Client al 800-
y seleccione la opción 4