There are 15 choices

• Air Bag
  • (below left hand front seat)
    • Crew Cab
      • ID 12241499
      • ID 15130609
    • Extended Cab (4 door)
      • hybrid option (opt HP2)
      • Without hybrid option
    • Regular Cab
      • passenger side seat sensor (opt AL0)
      • Without passenger side seat sensor
• Body Control (BCM)
  • (under steering column)
    • Crew Cab
    • Excluding Crew Cab
• Communication
  • telematics (OnStar, opt UE1)
    • (Passenger Side dash)
• Cruise Control
  • (left hand firewall)
    • (4.3L)
• Hybrid-Electric
  • battery control
    • (under back seat)
• Memory
  • (under Driver Side seat)
    • ID 15101510
    • ID 15196668
• Steering
  • (Quadrasteer, opt NYS)
    • (left hand rear frame)
• Transfer Case
  • (left hand dash)