Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Situational Awareness; Confusion; Troubleshooting; Workload
ATC Issue All Types; Aircraft Equipment Problem Less Severe; Inflight Event / Encounter CFTT / CFIT
Flight Crew Overcame Equipment Problem; Flight Crew FLC complied w / Automation / Advisory
Environment - Non Weather Related; Aircraft
Our flight ELP to ZZZ. We took off on Runway 4 and were assigned the JCOXX2 Departure. In the turn towards JCOXX above 6;450 ft we got the 'terrain message' followed by the 'pull up' message. We could clearly see that we would clear the terrain with no problem. As we were continuing the climb we noticed that the terrain system failed light was illuminated. ADS-B failed light was also on for awhile; but it went out after 30 minutes or so. I wrote up the terrain system fail light in ZZZ. The ATIS in ELP was warning of heavy military jamming of GPS signals in the area. When we asked ATC if they were receiving our ADS-B signal; they said they do not use it because of the military activities. The First Officer immediately pulled up and increased the climb rate; but since we both could see that terrain was not going to be a factor we did not exceed engine limits.
Air carrier Captain reported possible GPS jamming in this area per aircraft instrument errors; ATIS information and ATC advisory.