Hello,

for a few days I can't make any progress in the GTA V Story. Im stuck at 17,9% and nothing happens. I spend some time in doing nothing and I also tried to call several people, but there is nothing to do. The last mission I completed was the one where I had to tow the red car. And from this point nothing will happen.

Thanks for your help!

First hit on Google was an official Rockstar answer, so next time if you want to speed up the answer to your question, might want to Google it first. 

Answer: Some players haven’t realized that certain missions are only available when playing as certain characters. This has most commonly been reported around Surveying the Score, Bury the Hatchet, and Deep Inside. It may happen elsewhere too. Try playing as all three characters for a while to see if the mission opens up. In some cases, missions will only appear after a certain amount of in-game time, so also try doing other activities for a while. Some missions are triggered by phone calls and those might not arrive when you are in certain locations, so be sure to not stay in the same spot if you are waiting for a call. We recommend consulting a guide such as the Brady Guide (http://www.bradygames.com/promotions/promotion.aspx?promo=139300).
 

One possible work around, which has worked for some players, is to load the save file and use the “Quick Save” option to force a save to a new slot. After this is completed, load the new save and check to see if the issue is resolved. 
 

Alternatively, in some cases, taking a cab ride, and then choosing the “skip” option, which forces a load screen has been known to resolve some progression blocks.
 

If you have tried all the suggestions above and cannot get more missions to appear, you may have a corrupt save file. This may happen for a number of reasons, including on rare occasions when applying a Title Update. If you think you may be affected by this issue, please reload a previous save file from before applying the TU. Unfortunately there is no way to fix save files once they are corrupted. However, we are continuing to look into any workarounds that may be possible. If you would like to receive an automatic email notification whenever there is news about this, please log into the Support Site and click Subscribe at the top of this page.

 

https://support.rockstargames.com/hc/en-us/articles/200506327-What-to-do-if-no-further-missions-are-showing-up-in-GTAV-Story-Mode

Oh well, I should keep using the phrase "I already tried Google!" to avoid this kind of comments...

However, I already found that and tried these workarounds, but with no succes. I will try these steps again and hope for some other replies.