Market Segment:
Mid-size minivan/crossover utility vehicle.
Competitors:
Chevrolet Uplander, Pontiac Montana SV6, Saturn Relay (platform mates), Chrysler Pacifica, Dodge Grand Caravan, Ford Freestar, Honda Odyssey, Toyota Sienna.
Body Style:
Minivan with a crossover-like stance and styling cues.
Target Audience:
Families seeking versatile transportation with comfort and practicality.
Manual Advantage:
Comprehensive, factory-level repair information for DIY mechanics and professional technicians, enabling accurate and efficient maintenance and repairs.
Engine Mechanical:
Engine assembly, disassembly, diagnosis, repair of cylinder head, block, pistons, crankshaft, camshafts, timing systems, lubrication system, cooling system.
Engine Performance:
Fuel system (injection, fuel pump, injectors), ignition system (coils, spark plugs, sensors), emissions control system, exhaust system, engine control module (ECM) diagnosis.
Transmission:
Automatic transmission diagnosis, repair, fluid changes, torque converter, valve body, electronic controls.
Drivetrain:
Front-wheel drive systems, axles, CV joints, differential components.
Suspension:
Front and rear suspension components, struts, shocks, control arms, ball joints, sway bars, bushings, alignment specifications.
Brakes:
Brake system diagnosis, front and rear brake components (discs, pads, calipers), hydraulic system, ABS system, parking brake.
Steering:
Power steering system diagnosis, pump, rack and pinion, steering linkage, column.
Electrical System:
Battery, charging system (alternator), starting system (starter motor), lighting system (headlights, taillights, interior), fuses, relays, wiring diagrams.
Climate Control:
HVAC system diagnosis, blower motor, A/C compressor, refrigerant system, heater core, climate control module.
Body And Chassis:
Body panels, doors, windows, locks, interior trim, bumpers, structural components, rust repair, paint repair.
Body Electrical:
Power windows, power locks, remote keyless entry, power sliding doors, power liftgate (if equipped), interior lighting, instrument panel.
Maintenance:
Scheduled maintenance intervals, oil change procedures, filter replacements, spark plug replacement, fluid checks and replacements.
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting guides, diagnostic trouble codes (DTCs) and their interpretations.
Repair:
Step-by-step repair instructions for all major systems, including detailed component removal and installation procedures.
Diagnostics:
Procedures for using diagnostic scan tools, interpreting sensor data, and performing specific diagnostic tests.
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all vehicle systems, aiding in electrical troubleshooting and repair.
Depth:
Covers everything from basic preventative maintenance and fluid checks to complete engine and transmission overhauls. Includes detailed component-level diagnostics and repair procedures.
Oil Change Interval:
Every 7,500 miles or 6 months, whichever comes first (using synthetic blend or full synthetic oil).
Air Filter Replacement:
Every 30,000 miles or as needed based on driving conditions.
Spark Plug Replacement:
Approximately 100,000 miles (iridium-tipped spark plugs).
Transmission Fluid Change:
Every 100,000 miles under normal driving conditions; more frequently under severe driving conditions.
Engine Oil:
SAE 5W-30 (synthetic blend or full synthetic recommended)
Coolant:
GM Dex-Cool® (50/50 mix of Dex-Cool® antifreeze and distilled water)
Transmission Fluid:
Dexron® VI Automatic Transmission Fluid
Power Sliding Doors:
Potential issues with motors, tracks, and latches leading to malfunctions.
Rear Suspension:
Can experience sagging or premature wear of rear springs and shocks, especially when heavily loaded.
Transmission Shifting:
Some instances of rough shifting or hesitation may occur, often related to solenoids or the valve body.
Window Regulators:
Failure of power window regulators is a common complaint.
Buick Legacy:
Buick, a division of General Motors, has a long history of producing comfortable and well-equipped vehicles, often targeting a more mature demographic.
U Body Platform:
The Terraza is part of GM's U-body minivan platform, introduced in 2005 as a facelifted and rebadged version of the previous GM minivans (Venture, Silhouette, Trans Sport).
Production Years:
2005-2007 (discontinued after 2007 model year, though sales extended into 2009 in some markets).
Manufacturing Location:
General Motors' Doraville, Georgia assembly plant.
