We encountered the same thing with our son's Volvo. We bought key fobs on Amazon and took them to the largest and oldest Locksmith in town, after confirming they could do it. One of their machines was not capable of programming the fobs. The other machine would only program the key to start the car. Digging a little deeper, the tech found that the car's Immobilizer system had to be decrypted to get the 4 digit code needed to program the fob to unlock the doors and start the car. Volvo would not provide the locksmith with the 4 digit code, so we made an appointment to come back since the decryption process took several hours. They charged $50 to program the key fobs. It took about 5 hours to get the key fobs programmed.
The only other option for us would have been driving an hour to a Volvo dealer and pay close to $300 per key fob. We bought 2 fobs on Amazon for $70.
-Michael
Michael Girardo
2017 Jayco Jayflight Bungalow 40BHQS Destination Trailer
2009 Jayco Greyhawk 31FS Class C Motorhome (previously owned)
2006 Rockwood Roo 233 Hybrid Travel Trailer (previously owned)
1995 Jayco Eagle 12KB pop-up (previously owned)