PA-24 Turbo Comanche
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 80; Flight Crew Total 4000; Flight Crew Type 2500
Distraction; Human-Machine Interface; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Provided Assistance; Flight Crew Became Reoriented; Flight Crew FLC complied w / Automation / Advisory; Flight Crew Took Evasive Action
Environment - Non Weather Related; Aircraft; Human Factors; Procedure
After departure from ZZZ on an instrument flight plan to ZZZ1; on the aforementioned SID; I drifted right; west of course. I was supposed to be climbing on the BC LOC (Back course localizer) which has an outbound course of 164 degrees. I was informed by ATC that a low altitude alarm was sounded due to higher terrain to the west of the course I was intended to be on. I then did my best to correct the above deviation. I relied on my GPS to give me guidance through the SID and unfortunately it did not give me the correct course. I failed to pay close enough attention to the VOR localizer which I had setup in the number 2 position as a backup. I believe that a more inclusive scan would have prevented this event.
PA-24 pilot reported course deviation towards terrain on departure.