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2005 Buick Rainier Overview, Reviews, Ratings & Specs

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Eugene S | March 31, 2025
The 2005 Buick Rainier is a mid-size SUV built on the GMT360 platform, sharing its architecture with the Chevy Trailblazer and GMC Envoy. Produced from 2004 to 2007, the Rainier aimed to offer a more luxurious experience. Key trims included the base model and CXL. New, it ranged from approximately $34,000 to $38,000. It stood out for its quiet ride and upscale interior appointments, appealing to those seeking a comfortable and refined SUV experience.
The Good

The 2005 Buick Rainier offered decent performance with its available V8 engine.
It delivered a comfortable ride, appealing to those prioritizing smoothness. Its classic SUV design held a certain appeal. From a practical standpoint, it provided ample cargo space and a solid build. The value proposition leaned towards comfort and space rather than cutting-edge features or fuel efficiency.

The Bad

Common weaknesses of the 2005 Buick Rainier include potential issues with the air suspension (if equipped), transmission problems, and electrical glitches. Fuel economy is also a concern, particularly with the V8 engine. Owners should watch out for oil leaks and rust, especially in areas with harsh winters. Regular maintenance is crucial to mitigate these issues.

2005 Buick Rainier: Quick Overview

Key specs for the 2005 Buick Rainier:

  • Engine Options:
    • 4.2L Inline-6: 275 hp, 275 lb-ft of torque
    • 5.3L V8: 302 hp, 330 lb-ft of torque
  • Horsepower:
    • Inline-6: 275 hp
    • V8: 302 hp
  • Fuel Economy (estimated):
    • Inline-6: 16 mpg city / 22 mpg highway
    • V8: 15 mpg city / 20 mpg highway
  • 0-60 Times (estimated):
    • Inline-6: ~8.5 seconds
    • V8: ~7.5 seconds
  • Towing Capacity: Up to 6,700 lbs (with V8 and proper equipment)
  • Trim-Level Features:
    • Base: Cloth upholstery, power windows and locks, keyless entry, AM/FM radio with CD player, dual-zone climate control.
    • CXL: Leather upholstery, heated front seats, driver's seat memory, upgraded sound system, alloy wheels, OnStar, auto-dimming rearview mirror, available sunroof. Optional air suspension.
The 2005 Rainier came standard with a four-speed automatic transmission and rear-wheel drive; all-wheel drive was optional. Safety features included antilock brakes and traction control. The CXL trim offered more luxurious appointments and convenience features compared to the base model.

2005 Buick Rainier Specifications

Vehicle Information
Year 2005
Make Buick
Model Rainier
Trim -
Style -
Type Sport Utility Vehicle
Category Standard Sport Utility Vehicle
Manufacturing Details
Made In United States
Manufacturing City OKLAHOMA CITY
Dimensions
Doors 4-Door
Curb Weight 4600 pounds
Gross Vehicle Weight Rating 5750 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine LH6
Engine Size 4.2L
Engine Cylinders 6
Transmission -
Transmission Type Automatic
Transmission Speeds -
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) $35,610
Invoice Price $32,227
Delivery Charges $685

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What Problems Does the 2005 Buick Rainier Have?

Frequently reported problems for the 2005 Buick Rainier include issues with the automatic transmission, particularly slipping or hard shifting. The air suspension system, available on the CXL trim, is also prone to failure, leading to expensive repairs. Electrical issues, such as malfunctioning sensors and problems with the door locks and windows, are also common.
Rust is a concern, especially in areas with road salt. The fuel gauge can be inaccurate, and the HVAC system may develop problems. While the 2005 model year isn't specifically known for being worse than others in the Rainier's production run, these issues are consistent across the model years. Recalls for the Rainier have generally addressed safety concerns, such as faulty airbags or issues with the fuel system. Long-term reliability is a concern due to the aforementioned issues, and maintenance records are critical when considering a used model. Repair costs can be higher than average due to the complexity of some systems and the availability of parts.

How long will the 2005 Buick Rainier last?

With proper maintenance, a 2005 Buick Rainier can last for 200,000 miles or more, translating to 15-20 years of service. However, achieving this longevity relies heavily on diligent maintenance. Owners who neglect fluid changes, ignore minor repairs, or drive aggressively will likely experience a shorter lifespan. The air suspension, if equipped, is a significant long-term durability concern. Rust is another factor affecting longevity, particularly in colder climates. Engine and transmission issues can also arise over time if not properly addressed. Regular inspections and preventative maintenance are crucial for maximizing the lifespan of a 2005 Rainier.

What Technology & Safety Features are Included?

The 2005 Buick Rainier's built-in tech and entertainment features were relatively basic for its time.
Standard features included an AM/FM radio with a CD player and dual-zone climate control. The CXL trim added an upgraded sound system and OnStar. Driver-assistance features were limited, consisting primarily of antilock brakes and traction control. Optional features included a sunroof and heated seats.
Safety features included front airbags and side-impact airbags (optional). Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) generally showed acceptable performance in frontal and side-impact tests. However, rollover ratings were lower. The IIHS (Insurance Institute for Highway Safety) ratings were also available but varied depending on the specific test. Overall, the 2005 Rainier offered adequate safety features for its era, but it lacked the advanced driver-assistance technologies found in newer vehicles. The reliance on older technology means the entertainment options are dated by today's standards.

What Colors Options are Available?

Exterior Colors
Summit White
Black
Dark Blue Metallic
Sport Red Metallic
Silver Metallic
Sandstone Metallic
Graystone Metallic
Interior Colors
Light Cashmere
Dark Pewter

2005 Buick Rainier Prices and Market Value

When new, the 2005 Buick Rainier ranged from approximately $34,000 to $38,000 depending on the trim and options. Current used market prices typically range from $3,000 to $8,000, depending on condition, mileage, and location. The Rainier has depreciated significantly due to its age and the availability of newer, more fuel-efficient SUVs. Factors affecting resale value include the vehicle's condition, mileage, maintenance history, and whether it's equipped with the V8 engine or all-wheel drive. Models with the air suspension may actually have *lower* resale value due to potential repair costs. Rust-free examples in excellent mechanical condition command the highest prices.

2005 Buick Rainier Cost of Ownership

The 2005 Buick Rainier is generally considered costly to own. Insurance rates are moderate, but fuel costs are high due to its poor fuel economy. Maintenance and repair costs can be significant, especially given the potential for issues with the air suspension, transmission, and electrical system. Parts availability can also be a factor, potentially driving up repair expenses. Long-term ownership requires a proactive approach to maintenance to mitigate potential problems. Overall, the Rainier is not an economical choice compared to more modern SUVs.

2005 Buick Rainier Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 22 gallons
City Mileage 14 miles/gallon
Highway Mileage 19 miles/gallon

2005 Buick Rainier Safety Rating

NHTSA
Side Driver Rating
Frontal Passenger Rating
Rollover Rating
Side Rear Passenger Rating
Frontal Driver Rating
IIHS
Rear Crash Protection/Head Restraint Ratings Acceptable
Moderate Overlap Front Test Results Acceptable
Side Impact Test Results Marginal

2005 Buick Rainier Recalls & Defects

Visibility:windshield
Recall date 2005-02-03
Recall no. 05v035000
Source NHTSA
Summary Certain Sport Utility Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard NO. 212, 'windshield Mounting.' THE Windshield Urethane Bead MAY NOT Have Adhered TO THE Body IN Certain Areas During THE Cure Process.
Consequence IF A Crash Occurs, THE Windshield MAY NOT BE Retained, Increasing THE Risk OF Injury TO A Vehicle Occupant.
Remedy Dealers Will Replace THE Windshield Free OF Charge. THE Recall Began ON March 10, 2005. Owners MAY Contact Buick AT 1-866-608-8080, Chevrolet AT 1-800-630-2438, or GMC AT 1-866-996-9463.
Notes GM Recall NO. 05002.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.

2005 Buick Rainier Insurance

Insurance for a 2005 Buick Rainier is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.

How Does the 2005 Buick Rainier Compare to Other Sport Utility Vehicle?

The 2005 Buick Rainier competed against mid-size SUVs like the Chevrolet Trailblazer, GMC Envoy, Ford Explorer, and Jeep Grand Cherokee. In terms of performance, the Rainier's V8 engine was comparable to those offered by its rivals, but its fuel economy was generally worse.
Feature-wise, the Rainier offered a slightly more luxurious interior than the Trailblazer and Envoy, but it lacked some of the more advanced features available in the Ford Explorer and Jeep Grand Cherokee. Reliability was a weak point for the Rainier, with more reported issues compared to the Explorer and Grand Cherokee. Price-wise, the Rainier was positioned slightly higher than the Trailblazer and Envoy but similar to the Explorer and Grand Cherokee.
Alternatives to the 2005 Buick Rainier include:
  • Jeep Grand Cherokee: Offers better off-road capability and generally better reliability.
  • Ford Explorer: More available features and a slightly better reliability record.
  • Lexus RX 330: If reliability and luxury are high priorities, a used Lexus RX 330 offers a more refined and dependable experience, albeit with less cargo space.
If looking within the GMT360 platform, a well-maintained Trailblazer or Envoy could be considered, but managing expectations for reliability is key.

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Final Verdict: Is the 2005 Buick Rainier a Good Sport Utility Vehicle?

The 2005 Buick Rainier is ideal for someone seeking a comfortable and spacious mid-size SUV on a tight budget. It's worth buying *only* if you find a well-maintained example with detailed service records and a pre-purchase inspection by a trusted mechanic.
Avoid models with the air suspension unless it has been recently replaced. The CXL trim offers more desirable features but comes with added complexity and potential repair costs. Given its age and potential reliability issues, the 2005 Rainier is not a practical choice for those prioritizing low maintenance costs or fuel efficiency. Consider it only as a short-term, budget-friendly option with realistic expectations regarding its lifespan and potential repair needs. Newer SUVs offer better fuel economy, safety features, and reliability.

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Eugene S

Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehiclesβ€”starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.