Kia Sedona Brake Indicator

I recently had the engine in my 2002 Kia Sedona replaced. After getting it back from the auto shop, whenever I make a right hand turn the brake indicator comes on and dings. This does not occur on left hand turns. The mechanic has not been able to get this fixed. Any clue as to what the problem might be? The brake system has been checked and the brakes work fine.