2005 XC90 Memory Seat/Remote Programming

[Sirfile]

Volvo appears to use the same logic to program memory seats to remotes in all models. The following is the official description of the necessary steps:
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The remote control transmitter also controls the position of the power driver's seat and door mirrors in the following way:

1. Adjust the seat to your preferences.

2. When you leave your vehicle, lock it using the remote control.

The position of the driver's seat and door mirrors is now stored in the remote control's memory.

Automatic seat/mirror adjustment

To move the seat and door mirrors to the position in which you left them:

1. Unlock the driver's door with the same remote control (the one used to lock the doors).

2. Open the driver's door within 2 minutes.

The driver's seat and door mirrors will automatically move to the position in which you left them.

NOTE
• The key memory is independent of the seat memory.
• The seat will move to this position even if someone else has moved it to a different seating position and locked the vehicle with a different remote control.
• This feature will work in the same way with all of the remote control transmitters that you use with your vehicle.
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It was a revelation to discover the 'key' to the programming is that 'the key memory is independent of the seat memory'. Had that information been in the owner's manual, a great deal of time and aggravation would have been avoided. Ya', sure, you betcha, Sven!

This procedure solves my problem, but keep in mind that the second remote only moves the seat position when opening the door if the vehicle was locked by the previous remote when leaving the vehicle. That means you will still have to hold the seat memory button of choice if your vehicle is left unlocked . . . and that usually means its in the garage. Darn!