Engine Coverage:
3.5L V6 (LZ4), 3.9L V6 (LGD)
Transmission Coverage:
4-Speed Automatic (4T65-E)
Major Systems:
Engine, Drivetrain, Brakes, Steering, Suspension, HVAC, Electrical, Body, Interior, Safety Systems
Estimated Page Count:
Detailed, comprehensive information equivalent to over 2000 pages of printed material (specific page count varies based on digital rendering)
Type:
Official Service and Repair Manual Software
Format:
PDF Download (Licensed Software)
Engine Mechanical:
Engine assembly, cylinder head, valve train, pistons, connecting rods, crankshaft, lubrication system, cooling system, fuel system, intake manifold, exhaust manifold.
Engine Performance:
Ignition system, fuel injection system, emissions control systems (EVAP, catalytic converter), engine diagnostics, timing specifications.
Transmission:
Automatic transmission (4T65-E) operation, disassembly, assembly, torque converter, valve body, solenoids, internal components, fluid service, diagnostic procedures.
Brakes:
Front and rear disc brakes, ABS system, hydraulic control unit, wheel speed sensors, brake fluid specifications, bleeding procedures, caliper and rotor replacement, parking brake.
Steering:
Power steering system, steering column, rack and pinion assembly, tie rods, steering fluid specifications, alignment procedures.
Suspension:
Front independent suspension (MacPherson struts), rear independent suspension, control arms, ball joints, sway bars, shock absorbers, springs, wheel bearing replacement.
Electrical System:
Battery, charging system (alternator), starting system (starter motor), fuses, relays, lighting systems (headlights, taillights, interior), power windows, power locks, mirrors, wipers, horn.
Body And Trim:
Body panel removal and installation, doors, hood, trunk, bumpers, interior trim panels, seats, headliner, glass replacement.
HVAC:
Air conditioning system (compressor, evaporator, condenser, refrigerant), heating system, blower motor, climate controls, cabin air filter replacement.
Safety Restraint System:
Airbag system (SRS), seat belts, airbag control module, component replacement procedures, diagnostic codes.
Maintenance:
Oil change intervals, fluid checks and top-offs (coolant, brake fluid, power steering fluid, transmission fluid), filter replacement (oil, air, cabin), spark plug replacement, tire rotation.
Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based diagnostics, wiring diagrams for electrical issues, component testing procedures.
Repair:
Component removal, installation, and adjustment for all covered systems, including engine, transmission, brakes, suspension, steering, and electrical components.
Diagnostics:
Detailed diagnostic procedures for all major systems, including PCM/ECM strategies, sensor testing, actuator testing, and using diagnostic scan tools.
Depth:
Comprehensive, factory-level technical information covering everything from routine maintenance to complex diagnostic and repair procedures. Suitable for professional technicians and advanced DIY enthusiasts.
Oil Change Interval:
Every 7,500 miles or 12 months, whichever comes first (synthetic oil recommended).
Engine Air Filter Replacement:
Inspect every 15,000 miles, replace as needed or every 30,000 miles.
Cabin Air Filter Replacement:
Inspect every 15,000 miles, replace as needed or every 25,000 miles.
Spark Plug Replacement:
3.5L V6: 100,000 miles (iridium-tipped); 3.9L V6: 100,000 miles (iridium-tipped).
Engine Oil:
SAE 5W-30, API SN certified, GM dexos1โข approved (or equivalent).
Coolant:
GM P/N 12378397 or 89022303 (or equivalent), a 50/50 mixture of DEX-COOLยฎ coolant and distilled water.
Common Complaints:
Intermittent transmission shudder, power steering pump noise/failure, fuel pump issues, dashboard cracking, catalytic converter failure (in some cases).
Engine Performance Issues:
Hesitation or misfires can be related to ignition coils, spark plugs, or fuel injectors. Check for DTCs.