‘03 Buick Regal 2003 Owners Manual

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🏷️ Basic Information Identification Make: Buick Model: Regal Year: 2003 👋 Introduction Market Position Segment: Mid-size sedan (GM's W-body platform) Target Audience: Consumers seeking comfortable, well-equipped, and reliably performing sedans....

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Type: Car

Vendor:

Sku: 23960

Tags: 2003 Buick Car Cars Regal

Product variants

Description

🏷️ Basic Information

Identification

Make:

Buick

Model:

Regal

Year:

👋 Introduction

Market Position

Segment:

Mid-size sedan (GM's W-body platform)

Target Audience:

Consumers seeking comfortable, well-equipped, and reliably performing sedans.

Competitive Analysis

Key Competitors:

Ford Taurus, Toyota Camry, Honda Accord, Nissan Altima, Chevrolet Impala

Key Features

Interior Comfort:

Spacious cabin, comfortable seating, focus on ride quality.

Performance Options:

Offered with efficient V6 engines, providing a balance of power and economy.

Styling:

Classic Buick styling with a distinctive grille and body lines.

📋 Manual Details

Coverage Areas

Primary Coverage:

Buick Regal 2003 Model Year

Secondary Coverage:

Features, controls, maintenance, service schedules, DIY activities, towing, safety

Page Count

Estimated Page Count:

Approximately 250-350 pages (typical for a 2003 owner's manual)

Manual Type

Type:

Owner's Manual

Language

Language:

English

Format

Format:

PDF Download (Electronic Version)

📖 Manual Coverage

Systems Covered

Powertrain:

Engine operation, cooling system, fuel system, exhaust system

Drivetrain:

Transmission operation (automatic), drivetrain components

Chassis:

Braking system, steering system, suspension system

Electrical:

Lighting, instrumentation, power accessories, battery system

Body:

Doors, windows, seats, climate control, infotainment system

Procedures Included

Basic Maintenance:

Checking fluid levels, tire pressure, wiper blade replacement, light bulb replacement

Diy Activities:

Limited DIY tasks as specified by the manufacturer

Safety Considerations:

Seat belt usage, airbag system, child restraint systems, emergency procedures

Towing:

Towing recommendations and precautions

Technical Depth

Depth:

Owner-level operation, basic checks, and preventative maintenance. Does not cover in-depth diagnostics or repair procedures typically found in a service manual.

📊 Manual Specifications

File Format

File Type:

Portable Document Format (PDF)

Searchability:

Likely text-searchable, assuming a scanned document with OCR or a natively created PDF.

Print Quality

Printability:

Printable on standard home or office printers.

Binding Type

Binding:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code:

L36 (3.8L V6)

Engine Type:

Naturally Aspirated Overhead Valve (OHV) V6

Displacement:

3.8 Liters (231 cubic inches)

Horsepower:

205 hp @ 5200 rpm

Torque:

230 lb-ft @ 3000 rpm

Performance

Acceleration 0 60:

Approximately 8.0 - 8.5 seconds

Fuel Economy City:

Approximately 17-19 MPG

Fuel Economy Highway:

Approximately 26-29 MPG

Fuel System

Fuel Delivery:

Sequential Port Fuel Injection (SFI)

Recommended Fuel:

87 Octane Unleaded Gasoline

Engine Details

Block Material:

Cast Iron

Cylinder Head Material:

Aluminum

Ignition System:

Distributorless Ignition System (DIS)

🔧 Transmission

Standard

Transmission Type:

4-Speed Automatic (4T65-E)

Optional

Optional Transmission:

None for the standard 3.8L V6

Features

Shift Modes:

Driver-selectable modes (e.g., Normal, Performance, Winter - often indicated by button on shifter)

Fluid Specifications

Transmission Fluid Type:

Dexron III (or Dexron VI as a compatible replacement)

Fluid Capacity

Fluid Capacity Dry:

Approximately 10.5 Quarts (9.9 Liters)

📐 Dimensions

Exterior

Length:

Approximately 197.5 inches

Width:

Approximately 71.4 inches

Height:

Approximately 56.3 inches

Wheelbase:

Approximately 110.5 inches

Interior

Passenger Volume:

Approximately 103 cubic feet

Cargo

Trunk Volume:

Approximately 15.7 cubic feet

Weights

Curb Weight:

Approximately 3300-3500 lbs (depending on trim and options)

Gross Vehicle Weight Rating:

Approximately 4450 lbs

🛡️ Safety Features

Ratings

NHTSA Frontal Crash:

5-Star (Driver and Passenger) for 2003 model year

NHTSA Side Impact:

4-Star (Front Passenger) - Varies by configuration

Active Features

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional Traction Control System (TCS)

Passive Features

Airbags:

Driver and front passenger airbags, optional side airbags

Seat Belts:

Three-point active seatbelts with pretensioners

Child Restraints:

LATCH (Lower Anchors and Tethers for Children) system

💡 Technology Features

Infotainment

Audio System:

Standard AM/FM stereo with cassette and CD player, optional premium sound system with amplifier and steering wheel audio controls.

Climate Control:

Manual or optional dual-zone automatic climate control.

Driver Assistance

Cruise Control:

Standard cruise control system.

Connectivity

Auxiliary Inputs:

N/A (No standard aux input; aftermarket solutions may exist).

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 7,500 miles or 6 months, whichever comes first (under normal driving conditions). Refer to manual for severe conditions.

Tire Rotation:

Every 7,500 miles

Coolant Flush:

Every 100,000 miles or 5 years for initial service, then every 50,000 miles or 5 years.

Spark Plug Replacement:

100,000 miles (if equipped with original iridium plugs)

Fluid Specifications

Engine Oil Type:

SAE 5W-30 Synthetic Blend or Full Synthetic

Engine Oil Capacity:

4.5 Quarts (4.3 Liters) with filter change

Coolant Type:

Dex-Cool (Orange) Extended Life Antifreeze/Coolant

Brake Fluid Type:

DOT 3

Known Issues

Common Wear Items:

Wheel bearings, suspension bushings, front struts/shocks, O2 sensors.

Engine Specific:

Lower intake manifold gasket leaks (on certain GM 3800 V6 engines, though less common on the L36 than earlier iterations), occasional power steering pump noise.

Transmission Specific:

Occasional shifting issues or solenoid problems in the 4T65-E transmission if not properly maintained.

📚 Vehicle History

Brand Heritage

Brand Identity:

Buick, a division of General Motors, historically known for comfort, quietness, and luxury.

Model Evolution

Platform:

Based on GM's W-body platform, shared with Chevrolet Impala, Monte Carlo, and Pontiac Grand Prix.

Generation Context:

This generation of Regal (third generation) ran from 1997-2004, with this 2003 model representing a late-stage iteration.

Production

Manufacturing Location:

Oshawa, Ontario, Canada

Production Years For This Generation:

1997-2004

🏆 Awards & Recognition

Recognitions

Jdpower Initial Quality:

Regal models from this era often received respectable initial quality scores, reflecting Buick's focus on refinement.

Ratings

Consumer Reports:

Generally rated average to above average for reliability and owner satisfaction, particularly the powertrain.

Certifications

Emissions Certification:

Meets all applicable U.S. Federal Emissions Standards for model year 2003.