I had put larger tires and calibrated with rough country (https://5thgenrams.com/community/threads/my-experience-with-275-65-20-with-3-92-gears.18875/)
I noticed that I could not use the Active Park Assist (parallel and backup parking). I thought it was something to do with a lot of reports of problems with this system. Took to my dealer and they flashed the system and everything started working good except my speed calibration was off. I redid the rough country and speed was calibrated back again, confirmed via gps radar detector and gps phone app. But as soon as I do that, the park assist shows up with temporarily not available message! Just wanted to let folks know if they have the same issue. I much rather have correct speedometer since with the surround camera, parking any way is absolutely EASY (coming from HD Mega, seems like parking a mini). For reference I have 2020 Limited eco diesel off road.
I noticed that I could not use the Active Park Assist (parallel and backup parking). I thought it was something to do with a lot of reports of problems with this system. Took to my dealer and they flashed the system and everything started working good except my speed calibration was off. I redid the rough country and speed was calibrated back again, confirmed via gps radar detector and gps phone app. But as soon as I do that, the park assist shows up with temporarily not available message! Just wanted to let folks know if they have the same issue. I much rather have correct speedometer since with the surround camera, parking any way is absolutely EASY (coming from HD Mega, seems like parking a mini). For reference I have 2020 Limited eco diesel off road.
