Vehicle Segment:
Mid-size Crossover SUV (based on the GM U-platform)
Competitors:
Chevrolet Uplander, Pontiac Montana SV6, Saturn Relay.
Body Style:
Minivan/Crossover blend, offering versatile seating and cargo configurations.
Target Audience:
Families seeking flexible transportation with SUV-like driving dynamics and minivan practicality.
User Base:
Do-it-yourself (DIY) vehicle owners and experienced professional mechanics.
Powertrain:
Engine, Fuel System, Lube System, Cooling System, Emission Control System, Ignition System, Starting & Charging System, Automatic Transmission, Manual Transmission (if applicable to specific configurations, though the Terraza was primarily FWD with Auto).
Chassis:
Suspension, Steering System, Power Steering, Brakes (Hydraulic and Parking), Wheels & Tires.
Electrical:
Wiring Schematics & Diagrams, Lighting System, Instruments & Gauges, Audio/Visual Systems, Horn, Wiper & Washer System, Power Door Locks, Cruise Control, Engine Immobilizer, Air Conditioning System, Supplemental Restraint System (SRS) / Airbags, Seat Belts, Multiplex/CAN Communication.
Body:
Exterior & Interior Trim, Doors, Hood, Glass & Mirrors, Instrument Panel, Seats, Body Panels.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication.
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), electrical system diagnostics.
Repair:
Step-by-step repair instructions for all major components and systems, including engine overhaul, transmission service, brake system repair, suspension component replacement.
Technical Specifications:
Torque specifications, fluid capacities, component dimensions, diagnostic parameters.
Depth:
Comprehensive, covering basic maintenance to complete system overhauls and diagnostics. Suitable for DIY enthusiasts and professional mechanics.
Engine Code:
LA1 (3.5L V6 SFI)
Displacement:
3.5 Liters (3500cc)
Valvetrain:
Overhead Valve (OHV) with 2 valves per cylinder.
Horsepower:
Approx. 201 hp @ 5200 rpm
Torque:
Approx. 220 lb-ft @ 4000 rpm
Fuel Delivery:
Multi-port Fuel Injection (MPFI)
Fuel Type:
Unleaded Gasoline
Coolant Type:
Dex-Cool (GM's orange long-life coolant) - GM Part Number 12378515 or equivalent.
Oil Type:
SAE 5W-30 Synthetic Blend or Full Synthetic - GM Part Number 10-9037 or equivalent.
Oil Capacity:
Approx. 5 quarts (4.7 liters) with filter change.
Transmission Type:
4-speed Automatic (4T65-E)
Availability:
Not applicable, standard across all Terraza models.
Drive Type:
Front-Wheel Drive (FWD)
Transmission Fluid Type:
Dexron VI Automatic Transmission Fluid (ATF) - GM Part Number 88861950 or equivalent.
Capacity:
Approx. 8.7 quarts (8.2 liters) for complete refill.
Length:
Approx. 201.0 inches
Width:
Approx. 72.5 inches
Height:
Approx. 67.9 inches
Wheelbase:
Approx. 120.9 inches
Curb Weight:
Approx. 4,200 - 4,500 lbs (depending on configuration)
Cargo Volume Behind First Row:
Approx. 137.1 cubic feet (with second and third rows folded)
Cargo Volume Behind Second Row:
Approx. 70.6 cubic feet
NHTSA Rollover Resistance:
4 out of 5 stars (for models equipped with StabiliTrak)
Stability Control:
Available StabiliTrak Electronic Stability Control
Traction Control:
Standard Traction Control System (TCS)
Braking System:
Front and Rear Disc Brakes with Anti-lock Braking System (ABS)
Airbags:
Frontal airbags for driver and passenger, available side-impact airbags.
Seat Belts:
Three-point seat belts for all outboard seating positions, LATCH child seat anchors.
Audio System:
Available premium audio systems, CD player, auxiliary input (on some models).
Rear Entertainment:
Available rear-seat entertainment system with DVD player.
Parking Assist:
Available rear parking assist sensors.
Interior Features:
Power windows, power locks, cruise control, remote keyless entry.
ECU Type:
Engine Control Unit (ECU) managing fuel injection, ignition timing, and emissions. Manual covers diagnostic procedures for various sensors and actuators.
Oil Change Interval:
Every 7,500 miles or 6 months (using synthetic blend or full synthetic oil) with normal driving conditions. Refer to manual for severe driving conditions.
Tire Rotation:
Every 7,500 miles or oil change.
Engine Air Filter Replacement:
Inspect every 15,000 miles, replace as needed (typically every 30,000 miles).
Cabin Air Filter Replacement:
Inspect every 15,000 miles, replace as needed (typically every 15,000-30,000 miles).
Spark Plug Replacement:
For the 3.5L V6, typically at 100,000 miles with platinum or iridium plugs.
Brake Fluid Type:
DOT 3 Brake Fluid.
Power Steering Fluid Type:
Dexron III/VI ATF or a dedicated power steering fluid meeting GM specification.
Common Problems:
Intermittent transmission shifting issues, potential for power steering leaks, occasional electronic module failures, wear on suspension components, HVAC blower motor issues.
Repair Focus:
The manual will provide detailed troubleshooting and repair procedures for these common concerns.
Buick Legacy:
Buick, a division of General Motors, has a long history of producing comfortable and refined vehicles, often positioned as a premium American brand.
Platform Sharing:
The Buick Terraza is part of GM's U-platform minivans, shared with Chevrolet Uplander, Pontiac Montana SV6, and Saturn Relay. This platform offered front-wheel drive and a car-like ride.
Manufacturing Location:
Built at the Doraville Assembly Plant in Doraville, Georgia.
Production Years:
Model years 2005 through 2007.
Reason:
Discontinued as part of GM's broader restructuring and phasing out of certain brands and models.
