PREHEAT grill to medium-high heat. Mix dressing mix, brown sugar, oil, soy sauce, cinnamon, thyme and ground red pepper until well blended. Pour into large resealable plastic bag. Add chicken; seal bag. Turn bag over several times to coat chicken evenly. Refrigerate 30 minutes to marinate. Drain; discard marinade.
THREAD chicken onto skewers alternately with bell peppers and pineapple. Place on grill grate or rack of broiler pan.
GRILL 15 minutes or until chicken is cooked through, turning frequently.