Sierra SLT 2014 Radio Software Update

[daviddsims1]

I just pulled the plug and purchased a 2014 GMC Sierra SLT and couldn't be happier after my Ford F150 experience. On my Ford with Sync, you could update software but it doesn't look like you can do that on the GMC. How do I know I have the latest software? My software version shows 23203140.

[O_J_Simpson]

GM does no free updates after the warranty. Break out your wallet but don't expect much. GM radios are slow and laggy to commands even with the latest software.