| Options | Interchange # |
| |
| ABS |
| | SEE-545 |
| Air Bag |
| (below center console) |
| electric model (EV) | 591-04016 |
| gasoline model |
| ID 13593234 | 591-04188 |
| ID 13595566 | 591-04206 |
| Body Control (BCM) |
| (left lower a-pillar) |
| electric model (EV) | 591-04001 |
| gasoline model | 591-04118 |
| Communication |
| (OnStar, opt UE1) |
| (below LH seat) | 591-04265 |
| Hybrid-Electric |
| (battery energy control) |
| (battery pack) | 591-04250 |
| Parking Brake |
| (rear floor panel) | 591-07608 |
| Steering |
| | SEE-238 |
| Temperature |
| (center dash) | 591-04241 |
| Theft-Locking |
| (keyless entry) |
| electric model |
| (right rear quarter panel) | 591-04029 |
| gasoline model |
| (left rear quarter panel) | 591-08333 |
| Transmission |
| (under left dash) | 591-13980 |