LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1999 >> Forward Control 6.5 F, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock Systems >> Model Identification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Model Identification

WARNING: Vehicles are equipped with Supplemental Inflatable Restraint (SIR) systems. See AIR BAG SERVICE PRECAUTIONS article in APPLICATIONS & IDENTIFICATION before attempting adjustments or repairs on or around steering column and components.

Vehicle model is identified by fifth character of Vehicle Identification Number (VIN). VIN is stamped on metal pad on top of left end of instrument panel, near windshield. See MODEL IDENTIFICATION  table.

MODEL IDENTIFICATION

Series (1) Model
"C" 2WD Pickup, Sierra, Silverado, Suburban, Tahoe & Yukon
"G" Express & Savana
"K" 4WD Pickup, Sierra, Silverado, Suburban, Tahoe, Yukon & AWD Escalade
"P" Forward Control (P42) & Motorhome Chassis (P32)
"S" 2WD Blazer, Jimmy, S10 Pickup & Sonoma
"T" 4WD Blazer, Bravada, Envoy, Jimmy, S10 Pickup & Sonoma
(1) Vehicle series code is fifth character of VIN.