Guys - need help. The "integrated remote control" just above the inside rear view mirror will not program. What do I do?

Followed directions and it seemed to program OK. Key in position 2, hold one button on the SLK remote down until it blinks once per second. Continue holding down and aim the garage opener at it. Press button on garage opener remote until "integrated remote control" flashes rapidly.

All this worked. According to the Owner's Manual then "This means that the integrated remote control has accepted the frequency and code of the portable transmitter." Except that pushing the button on the SLK will not open or close the garage door.

So held down two outside buttons per instructions until the control light blinks rapidly and magically all the codes are supposedly erased.

Followed directions again and again. No luck. Thought maybe the left button had a problem so I tried to program the middle and then the right button; still no luck. The garage door opener does not seem to have a rolling code feature so the training instructions in the Owner's Manual do not apply.

Any idea what to do? Should not be a fuse if the lights in the SLK remote work. I think I followed the instructions, all the lights blinked properly including when erasing the codes. But the integrated remote control will not lower the garage door.

Thanks for your help.