MODEL IDENTIFICATION
| Series (1) | Model |
|---|---|
| "A" | FWD Aztek |
| "B" | AWD Aztek |
| "C" | 2WD Pickup, Sierra, Sierra HD, Silverado, Silverado HD, Suburban, Tahoe & Yukon |
| "E" | 2WD Tracker |
| "G" | Express & Savana |
| "J" | 4WD Tracker |
| "K" | 4WD Pickup, Sierra, Sierra HD, Silverado, Silverado HD, Suburban, Tahoe, Yukon & AWD Escalade |
| "L" | AWD Astro & Safari |
| "M" | 2WD Astro & Safari |
| "S" | 2WD Blazer, Envoy, Jimmy, Sonoma & S10 Pickup |
| "T" | 4WD Blazer, Bravada, Envoy, Jimmy, Sonoma & S10 Pickup |
| "U" | Montana & Venture |
| "X" | (2) Montana, Silhouette & Venture |
| (1) Vehicle series is 5th character of VIN. (2) Extended wheel base. | |
| (1) | Vehicle series is 5th character of VIN. |
| (2) | Extended wheel base. |
MODEL IDENTIFICATION
| WARNING | Some models may be equipped with Compressed Natural Gas (CNG). Read and carefully follow all precautions as outlined in CNG/LPG SAFETY PRECAUTIONS article in GENERAL INFORMATION prior to servicing. |
| WARNING | Deactivate air bag system before performing any service operation. See appropriate AIR BAG RESTRAINT SYSTEMS article in ACCESSORIES & EQUIPMENT. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy. |
| CAUTION | When battery is disconnected, vehicle computer may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |