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2004 Buick Regal Overview, Reviews, Ratings & Specs

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Cathleen V | March 31, 2025
The 2004 Buick Regal is a mid-size sedan produced by General Motors, representing the latter years of the Regal's run before its hiatus. It's known for its comfortable ride and spacious interior. The Regal was available as a four-door sedan. Key trims included the base Regal and the LS. Pricing for a used 2004 Regal typically ranges from $2,000 to $6,000 depending on condition and mileage. Its appeal lies in its blend of affordability and traditional Buick comfort, making it a practical choice for budget-conscious buyers seeking a reliable sedan.
The Good

The 2004 Buick Regal offers a smooth, comfortable ride, appealing to those seeking a relaxed driving experience. Its reliability is generally good, making it a practical choice for budget-minded buyers. The value proposition is strong, providing a lot of car for the money. While not sporty, its comfortable interior and dependable nature can evoke a sense of secure and easy driving.

The Bad

Known weaknesses of the 2004 Buick Regal include potential issues with the transmission, particularly at higher mileage. Some owners have reported problems with the electrical system and air conditioning. Rust can also be a concern, especially in areas with harsh winters. Regular maintenance and inspection are crucial to mitigate these potential problems.

2004 Buick Regal: Quick Overview

  • Engine Options:
    • 3.8L V6 (3800 Series II)
  • Horsepower:
    • 200 hp @ 5200 rpm (3.8L V6)
  • Fuel Economy (estimated):
    • City: 19 mpg
    • Highway: 29 mpg
  • 0-60 mph Time:
    • Approximately 7.6-8.0 seconds (3.8L V6)
  • Towing Capacity:
    • Not recommended or rated for towing.
  • Trim-Level Features:
    • Regal (Base): Air conditioning, power windows and locks, cloth upholstery, AM/FM radio with CD player, antilock brakes (ABS), dual front airbags.
    • Regal LS: Adds features such as: Alloy wheels, upgraded sound system, cruise control, remote keyless entry, and sometimes leather upholstery depending on options packages.

2004 Buick Regal Specifications

Vehicle Information
Year 2004
Make Buick
Model Regal
Trim -
Style -
Type Sedan
Category Compact Car
Manufacturing Details
Made In Canada
Manufacturing City OSHAWA #2
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine LG8
Engine Size 3.8L
Engine Cylinders 6
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain Front-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

Vehicle History Report

Vehicle
Specifications
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History
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Events
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History Check
Salvage/Rebuilt
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Accident
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Open Lien
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Past Sale
Listings
Safety
Recalls
Odometer
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Market Price
Analysis

What Problems Does the 2004 Buick Regal Have?

Frequently reported problems for the 2004 Buick Regal often revolve around the automatic transmission. Slipping, rough shifting, and complete failure are potential issues, especially on models with higher mileage or those that haven't had regular transmission fluid changes. Electrical problems, such as malfunctioning power windows, door locks, and issues with the climate control system, are also commonly reported. The 3800 Series II engine is generally reliable, but intake manifold gasket leaks can occur, leading to coolant loss and potential engine damage if left unattended. Rust can be a significant long-term concern, particularly in areas with road salt. Check rocker panels, wheel wells, and undercarriage for corrosion. Recalls are searchable via the NHTSA website (NHTSA.gov) using the vehicle's VIN. While not specific to the 2004 model year alone, earlier models in the same generation also experienced similar issues, suggesting these were recurring problems across the Regal's lifespan.

How long will the 2004 Buick Regal last?

With proper maintenance, a 2004 Buick Regal can easily reach 200,000 miles or more. Many owners report getting 15-20 years of service from their Regals. However, longevity heavily depends on diligent maintenance, including regular oil changes, transmission fluid flushes, and cooling system services. Long-term durability weaknesses often stem from neglecting these maintenance items. The transmission is a common failure point if not properly maintained. Rust is also a significant threat, impacting structural integrity over time. Addressing these issues proactively can significantly extend the vehicle's lifespan.

What Technology & Safety Features are Included?

The 2004 Buick Regal offered a relatively basic level of technology for its time. Standard features included an AM/FM radio with a CD player. Optional entertainment upgrades were limited but could include a premium sound system.
Driver-assistance features were virtually non-existent, reflecting the technology available in 2004. It lacked modern features like blind-spot monitoring, lane departure warning, or adaptive cruise control.
Safety features included standard dual front airbags and antilock brakes (ABS). Side airbags were not a standard or commonly available option.
Crash test ratings from the NHTSA (National Highway Traffic Safety Administration) are available, and should be researched. The IIHS (Insurance Institute for Highway Safety) may also have conducted tests. These ratings provide insights into the vehicle's performance in frontal and side-impact collisions. It is important to check the specific ratings for the 2004 model year, as they can vary from year to year. Overall, the 2004 Regal prioritizes basic safety features, lacking the advanced tech and driver aids found in more modern vehicles.

What Colors Options are Available?

Exterior Colors
White
Black
Silver Metallic
Light Sandrift Metallic
Medium Bronzemist Metallic
Dark Bronzemist Metallic
Dark Teal Metallic
Crimson Red Tintcoat
Navy Blue Metallic
Interior Colors
Gray
Neutral

2004 Buick Regal Prices and Market Value

When new, the 2004 Buick Regal had a starting price in the range of $23,000 to $27,000 depending on the trim level and options. Currently, used market prices range from approximately $2,000 to $6,000, heavily influenced by condition, mileage, and location. The Regal has depreciated significantly due to its age and the availability of newer, more technologically advanced vehicles. Factors affecting resale value include mechanical condition, rust presence, and overall cosmetic appearance. Models with lower mileage and a well-documented maintenance history command higher prices. The Regal's relatively simple mechanical design and dependable engine contribute somewhat to its retained value, but age is the primary limiting factor.

2004 Buick Regal Cost of Ownership

The 2004 Buick Regal is generally economical to own. Insurance costs are typically low due to the vehicle's age and safety record. Fuel economy is reasonable for its class. Maintenance and repair costs can be moderate, with readily available parts and straightforward mechanicals. However, potential transmission and electrical issues can lead to higher repair bills. Long-term ownership costs are most affected by rust prevention and diligent maintenance. Properly maintained, the Regal offers affordable transportation; neglected, it can become costly.

2004 Buick Regal Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2004 Buick Regal Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Side Barrier Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2004 Buick Regal Insurance

Insurance for a 2004 Buick Regal is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.

How Does the 2004 Buick Regal Compare to Other Sedan?

The 2004 Buick Regal competed with mid-size sedans like the Toyota Camry, Honda Accord, and Ford Taurus. In terms of performance, the Regal's 3.8L V6 offered adequate power, but it wasn't as sporty as some rivals. Features were relatively basic compared to the Camry and Accord, which offered more advanced technology options. Reliability is generally good, but the Regal's transmission can be a weak point, whereas the Camry and Accord are known for superior reliability. Price-wise, the Regal was often more affordable than the Camry and Accord, both new and used. The Ford Taurus offered similar comfort and affordability but lacked the Regal's smooth engine.
Alternatives to consider include the Toyota Camry and Honda Accord for superior reliability and resale value, though at a higher price point. The Mercury Grand Marquis (based on the Ford Crown Victoria) offers a similar comfortable, traditional sedan experience with a V8 engine. If budget is the primary concern, the Regal is a decent choice, but the Camry or Accord are better long-term investments for reliability. The Mazda 6 could offer a sportier driving experience.

Ranks #1972 Sedan

1 2023 Toyota Camry (5.0★)
2 2023 Honda Accord (0.0★)
3 2023 Lexus ES (0.0★)
4 2024 Subaru Legacy (5.0★)
5 2022 Mazda MX-30 (4.0★)
6 2024 BMW M3 (0.0★)
7 2023 Ford Mustang (5.0★)
8 2023 Mercedes-Benz AMG GT (0.0★)
9 2023 Audi A3 (0.0★)
10 2023 Chevrolet Camaro (5.0★)
11 2023 Hyundai Elantra Hybrid (0.0★)
12 2023 Nissan Altima (4.0★)
1972 2004 Buick Regal (0.0★)

Final Verdict: Is the 2004 Buick Regal a Good Sedan?

The 2004 Buick Regal is ideal for budget-conscious buyers seeking a comfortable and reliable, albeit older, sedan. It's a good choice for those who prioritize a smooth ride and spacious interior over cutting-edge technology or sporty handling. It is worth buying used *if* a thorough inspection reveals a well-maintained vehicle with no significant rust or transmission issues. Look for a model with a documented maintenance history. The LS trim is preferable for the added features. Avoid examples with high mileage or signs of neglect. If reliability and longevity are paramount, consider a Toyota Camry or Honda Accord, even if they cost more upfront. The Regal offers decent value for the money, but buyer beware.

2004 Buick Regal Owner Reviews

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Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.