Just changed the batteries and need to re-sync. How?

If u have taken more then ten minutes when you changed the battery the fob has probably lost its sync with the car n now u will need to reprogram, re sync or pair ur remote back up with the car

Did you already re-sync?
"After you change the battery, be sure to put the key in the ignition and start the car so it will re-sync."
"You sync it with the key in the ignition turned to 'ON' and press the UNLOCK button 7-10 times."

This suggests removing key with gear lever in Reverse:
http://www.saablink.net/forum/car-problems-ng900-old-9-3-only/65025.htm

Perhaps helpful:
http://www.serioussaab.co.uk/Procs_pages/proc_pages/p_keybatt.html

This reports a similar behavior:
http://www.cargurus.com/Cars/Discussion-t29150_ds571868

Often the sync button can be found inside the battery compartment. Unless it's a tiny USB receiver, you probably also need to press the sync button on the receiver within a couple of seconds of pressing the sync button on the mouse. If that doesn't work or make sense, please provide the mouse model #.

We'll you could take it back or go on the web site and ask for support

In this watch the battery should be changed after one year, depending on how often the features are used. After changing the battery the all reset should be done. Best to take it to an authorized service, and not any non authorized place to change the battery. Get in touch with Tissot for the info about where to bring the watch.

You have to sync the remote to the console. You'll have to hit the sync button on the back of the remote in the battery compartment, and the sync button under the flap near the disc slot on the front of the console, and hold them until the lights on the remote stop flashing.

You need to resync the remote. Here is how on link below.

http://www.fixya.com/support/r3557442-wii_remote_not_being_recognized_wii

1 Open the back of your Wiimote and insert the two AA batteries as indicated in the battery panel. Leave the cover off after you've inserted the batteries. Step2 Turn on your Wii from the front of the console. Allow the Wii to cycle to the main menu. Step3 Open the front door on the front of the console to reveal the SD card input and the "Sync" button. Step4 Press the "Sync" button on your Wiimote, located just underneath the batteries. When it is in Sync mode the LED light will flash. Step5 Press the "Sync" button on your Wii console to connect the signals and allow the controller and console to sync. This may take a few seconds, so be patient while it continues to connect. Step6 Watch to see if the LED has stopped blinking. Once it has, your Wiimote is now connected to your Wii. Put the battery cover back on. Step7 Use One-Time Synchronization to change the way the Wiimotes are synced to the console. You can do this by pressing the "Home" button on your controller and choosing "Reconnect." This is useful when you wish to change the player/controller layout without passing different Wiimotes around and losing track of which is which. One-time mode is reset to Standard once the Wii is restarted.

Install Active Sync latest version off of the Microsoft site. Turn off automatic SYNC ..... change it to manual sync.

Then check the connections on the watch battery----- you may need to add a piece of tape to the battery lid to get a tight connection. Carefully bend out the tab that contacts the battery. Wipe the battery off with a clean rag before installing.

It may be due to a permissions issue on the workstation running the hot sync program