Market Position:
Essential repair and maintenance resource for 2003 Buick LeSabre owners and independent technicians.
Competitive Analysis:
Directly comparable to official dealership service manuals, offering a comprehensive and authorized solution for vehicle care.
Key Features:
Vehicle-specific, factory-level detail, all-encompassing repair coverage, digital convenience, cost savings over professional labor.
Value Proposition:
Empowers owners to perform maintenance and repairs with confidence, reducing reliance on expensive dealership services.
Coverage Scope:
All models and all repairs A-Z, vehicle specific
Page Count:
Not specified, but implied to be comprehensive
Manual Type:
Service and Repair Manual
Operating Systems:
Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac
Software Requirements:
Adobe PDF Reader, Winzip (free online)
Engine Systems:
Engine, Control System, Fuel Service Specifications, Emission Control, Intake Exhaust Cooling, Lube, Ignition Starting Charging
Drivetrain Systems:
Auto Transmission Clutch, Manual Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension
Chassis Systems:
Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering
Body And Interior Systems:
Air Condition, Suppl Restraint System, Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn, Windshield/Glass Mirror, Instrument Panel, Seat, Engine Hood/ Door, Exterior & Interior
Electrical Systems:
Electrical, Multiplex/Can Communication
Diagnostic Procedures:
Diagnosis, Troubleshooting
Maintenance Procedures:
Maintenance, Service
Repair Procedures:
Repair, Complete Repair
Technical Depth:
Factory highly detailed, complete step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications
Printability:
All pages are printable, blow-up images possible
Binding Type:
Digital (PDF), no physical binding
Paper Type:
N/A (digital format), user printable on desired paper
Searchability:
Implied by PDF format, allowing for easy navigation
Engine Type:
3.8L V6 (3800 Series II)
Horsepower:
Approximately 205 hp @ 5200 rpm (natural aspiration)
Torque:
Approximately 230 lb-ft @ 4000 rpm
Fuel Delivery:
Sequential Port Fuel Injection (SFI)
Ignition System:
Distributorless Ignition System (DIS) with Coil-on-Plug (COP)
Coolant Capacity:
Approximately 11.9 quarts (11.3 L) (V6)
Transmission Type:
4-Speed Automatic (4T65-E)
Optional Transmission:
None specified for this model year, primarily automatic
Transmission Features:
Electronically controlled with overdrive
Transmission Fluid:
Dexron III/VI (check specific manual for exact GM specification)
Wheelbase:
Approximately 110.7 inches (2812 mm)
Overall Length:
Approximately 201.0 inches (5105 mm)
Overall Width:
Approximately 74.4 inches (1890 mm)
Overall Height:
Approximately 55.0 inches (1397 mm)
Curb Weight:
Approximately 3500-3700 lbs (1588-1678 kg), varies by trim
Trunk Capacity:
Approximately 17.0 cubic feet (0.48 cubic meters)
NHTSA Frontal Driver:
5 Stars
NHTSA Frontal Passenger:
5 Stars
NHTSA Side Driver:
4 Stars
NHTSA Side Rear Passenger:
5 Stars
IIHS Moderate Overlap Frontal Offset:
Good
Active Safety Features:
Anti-lock Braking System (ABS), Traction Control System (TCS)
Passive Safety Features:
Dual front airbags, front side-impact airbags (optional/standard depending on trim), front and rear seatbelts with pretensioners and load limiters
Infotainment System:
Standard AM/FM stereo with CD player, optional premium audio systems, available steering wheel controls.
Driver Assistance Features:
Cruise control, optional parking assist sensors.
Connectivity Options:
Limited by modern standards; typically includes power outlets for accessories.
Instrumentation Features:
Analog gauges for speedometer, tachometer, fuel, and engine temperature; driver information center with trip computer.
Oil Change Interval:
Recommended every 5,000 - 7,500 miles or 6 months, using synthetic blend or full synthetic oil.
Engine Coolant Flush:
Recommended every 30,000 - 50,000 miles or 2-3 years.
Transmission Fluid Change:
Recommended every 50,000 - 100,000 miles, depending on driving conditions. Consult manual for precise interval and procedure.
Spark Plug Replacement:
Platinum or Iridium plugs typically rated for 100,000 miles.
Engine Oil Type:
SAE 5W-30 (synthetic blend or full synthetic recommended for optimal performance and protection)
Coolant Type:
GM P/N 12346290 (orange) or equivalent Dex-Cool compatible coolant (50/50 mixture with distilled water)
Power Steering Fluid:
GM P/N 1050017 or equivalent (Dexron III/VI compatible)
Common Issues:
Intake manifold gasket leaks (especially earlier models with plastic gaskets), power steering pump leaks, occasional window regulator failures, and headliner sagging are common to this generation.
Engine Issues:
While the 3800 V6 is generally robust, some owners report issues with the thermostat housing or coolant elbows leading to leaks.
Brand Heritage:
Buick, a division of General Motors, has a long history of producing comfortable, reliable, and well-equipped American sedans.
Model Evolution:
The LeSabre has been a staple in Buick's lineup for decades, evolving from a large luxury car to a comfortable full-size sedan, known for its smooth ride and spacious interior. The 2000-2005 generation represented a significant styling and engineering update.
Production Location:
Detroit/Hamtramck Assembly, Michigan, USA
Production Years:
The third generation LeSabre, including the 2003 model, was produced from 1999 to 2005.
Recognitions:
Buick LeSabre often received favorable reviews for its comfortable ride, quiet cabin, and spacious interior, making it a popular choice for long-distance travel and for seniors.
Consumer Reports Ratings:
Historically received generally good reliability ratings for the powertrain, with some noted areas for improvement in body and climate control systems.
