/en/qa/tag/pats-programming-santa Powered by Question2Answer /en/qa/140662/more-of-a-suggestion-for-an-ammendment I was having trouble getting an EVO-ONE to program properly in a 2010 Santa Fe. I realize it's an older vehicle so maybe this is a moot point. It would process the CAN just fine, but when it came to the PATS programming I followed the instructions to the letter. I noted that the instructions state that the 3 LEDs should flash in sequence, which led me to believe that they would come on one at a time. They were sequencing, but always in pairs. This was the first misunderstanding. The second one was that the instructions state that the PATS programming may take up to 5min. I even used a stopwatch to time it and gave it a bit longer. Nothing. Finally after spending several hours confirming that EVERYTHING was done correctly, I reset the module (probably for the 5th time) and started again. CAN went in good, started the PATS sequence and walked away for a good 20-30 minutes. When I came back the yellow light was flashing quickly as it was supposed to. So I'd like to suggest that the wording be changed to reflect the fact that the LEDs do not flash in sequence, but in pairs, with a specific pattern, and that the procedure can take longer than 5 minutes. This would have saved me a LOT of time on this install. Hyundai /en/qa/140662/more-of-a-suggestion-for-an-ammendment Fri, 17 Jul 2026 23:53:50 +0000