The ESC OFF light continually comes on which causes the vehicle to not function correctly, especially the shifting of the transmission (others have reported this elsewhere as sluggish acceleration, but the vehicle’s automatic transmission stays in gear 4 if you keep it in Drive mode. If you switch …

Perpetually Random ESC OFF Light

tardis January 4, 2011, 4:18pm 5

I don’t know about KIA, but many stability control systems can and will reduce engine power under some situations. It could all still be one issue.