The Best Years For Chevrolet Trailblazer Ext And Some To Avoid

The Chevrolet Trailblazer EXT, the extended-length version of the popular mid-size SUV, offered families extra cargo space and an optional third-row seat. While it provided versatility, some model years proved more reliable than others. This guide will help you navigate the used market to find the best Trailblazer EXT for your needs, and identify the years to approach with caution.

Chevrolet Trailblazer EXT: Year-by-Year Reliability at a Glance

Detailed Explanations

Model Year: This column indicates the specific year the Trailblazer EXT was manufactured. It's crucial for identifying potential problems and assessing overall reliability.

Reliability Rating: This rating provides a general assessment of the year's reliability based on owner reports, common problems, and expert reviews.

• Below Average: Indicates a higher-than-usual frequency of problems and potential for costly repairs.
• Average: Suggests a mix of good and bad, with some common issues but not widespread unreliability.
• Above Average: Signifies a lower frequency of problems and generally better reliability compared to other years.
• Best Year: Represents the most reliable year within the Trailblazer EXT's production run, with the fewest reported issues.

Key Considerations: This section highlights the most significant factors to consider when evaluating a specific model year. It includes common problems, potential issues, and areas to inspect during a pre-purchase inspection.

2003: The 2003 Trailblazer EXT is generally considered one of the least reliable years. It's plagued by transmission problems, including slipping and hard shifting. Owners also reported electrical issues, such as problems with the windows, door locks, and instrument panel. Rust is also a significant concern, especially in areas with harsh winters. Thorough inspection and a detailed service history are crucial if considering this year.

2004: The 2004 model showed some improvements over the 2003, particularly in transmission reliability. However, transmission issues were still reported, although less frequently. Electrical problems persisted, though perhaps to a lesser degree. Rust remains a significant concern, and potential buyers should carefully inspect the undercarriage and body panels for signs of corrosion.

2005: The 2005 Trailblazer EXT is a significant step up in reliability compared to the earlier years. Transmission issues were significantly reduced, and electrical problems were less prevalent. While not entirely problem-free, it represents a better value proposition than the 2003 and 2004 models. Rust is still a possibility, so a thorough inspection is recommended.

2006: The 2006 Trailblazer EXT is widely regarded as the most reliable year of the EXT model. It benefits from continuous improvements throughout the production run and has the fewest reported problems. While no used car is perfect, the 2006 model offers the best overall value and reliability for those seeking a Trailblazer EXT. Thorough inspection is still advised, but the odds of finding a well-maintained and reliable example are higher.

Common Problems Across All Years (But More Prevalent in Certain Years)

Regardless of the year, certain issues can affect any Trailblazer EXT. Understanding these common problems is crucial for making an informed purchase.

• Transmission Issues: As mentioned above, transmission problems are a recurring theme, particularly in the earlier years. Symptoms can include slipping gears, hard shifting, and complete transmission failure. Regular transmission fluid changes are crucial for preventative maintenance.

• Electrical Problems: Electrical issues can range from minor annoyances to major headaches. Common problems include malfunctioning power windows, door locks, and instrument panel displays. Diagnosing electrical problems can be time-consuming and expensive.

• Rust: Rust is a significant concern, especially in areas where road salt is used during the winter months. The undercarriage, rocker panels, and wheel wells are particularly susceptible to rust. Regular washing and waxing can help prevent rust formation.

• Four-Wheel Drive System Issues: If equipped with four-wheel drive, the system can experience problems such as malfunctioning actuators or transfer case issues. Regular maintenance and proper usage are essential for preventing these problems.

• Fuel Gauge Inaccuracy: Many Trailblazer EXT owners have reported issues with the fuel gauge reading inaccurately. This can be a minor annoyance or a more serious problem if it leads to running out of gas.

• Air Conditioning Problems: Air conditioning problems are common in older vehicles, and the Trailblazer EXT is no exception. Leaks in the refrigerant lines or a malfunctioning compressor can lead to poor cooling performance.

What To Look For When Buying a Used Trailblazer EXT

Before purchasing any used Trailblazer EXT, it's essential to conduct a thorough inspection and ask the right questions. Here's a checklist to guide your inspection:

• Exterior Inspection:
  • Check for rust, especially on the undercarriage, rocker panels, and wheel wells.
  • Inspect the body panels for dents, scratches, and signs of previous repairs.
  • Ensure all lights and signals are functioning properly.
  • Check the tires for wear and tear.
• Interior Inspection:
  • Inspect the seats for wear and tear.
  • Test all power windows, door locks, and mirrors.
  • Ensure the air conditioning and heating systems are functioning properly.
  • Check the instrument panel for any warning lights.
  • Test the radio and other electronic features.
• Mechanical Inspection:
  • Start the engine and listen for any unusual noises.
  • Check the engine oil and coolant levels.
  • Test the brakes for responsiveness.
  • Check the transmission fluid level and condition.
  • If equipped with four-wheel drive, test the system to ensure it engages properly.
• Test Drive:
  • Drive the vehicle on a variety of roads to assess its handling and performance.
  • Pay attention to any unusual noises or vibrations.
  • Check for smooth shifting between gears.
  • Test the brakes under different conditions.
• Service History:
  • Request the vehicle's service history to identify any previous repairs or maintenance.
  • Pay attention to any recurring problems or major repairs.
• Pre-Purchase Inspection:
  • Consider having a qualified mechanic perform a pre-purchase inspection to identify any potential problems.

Factors Influencing Reliability

Several factors contribute to the overall reliability of a used vehicle. When evaluating a Trailblazer EXT, consider the following:

• Maintenance History: A well-maintained vehicle is more likely to be reliable. Regular oil changes, fluid flushes, and preventative maintenance can significantly extend the life of the vehicle.
• Driving Habits: Aggressive driving habits can put extra strain on the engine, transmission, and other components. A vehicle that has been driven gently is more likely to be in good condition.
• Geographic Location: Vehicles that have been driven in harsh climates, such as areas with heavy snow or extreme heat, may be more prone to rust and other problems.
• Number of Owners: A vehicle with fewer owners is generally more desirable, as it suggests that the vehicle has been well-cared for.

Alternatives to the Chevrolet Trailblazer EXT

If you're not completely sold on the Trailblazer EXT, several other mid-size SUVs with three-row seating offer similar capabilities. Here are a few alternatives to consider:

• GMC Envoy XL: The GMC Envoy XL is essentially a rebadged version of the Trailblazer EXT, offering similar features and capabilities.
• Ford Explorer: The Ford Explorer is a popular mid-size SUV with a long history of reliability.
• Toyota 4Runner: The Toyota 4Runner is known for its ruggedness and off-road capabilities.
• Dodge Durango: The Dodge Durango offers a spacious interior and powerful engine options.

Frequently Asked Questions

Which Trailblazer EXT year is the most reliable?

The 2006 model year is widely considered the most reliable, with the fewest reported problems.

What are the most common problems with the Trailblazer EXT?

Common issues include transmission problems, electrical issues, rust, and four-wheel drive system malfunctions.

Is the Trailblazer EXT good on gas?

No, the Trailblazer EXT is not known for its fuel efficiency. Expect to get around 15-16 mpg in the city and 20-22 mpg on the highway.

How much does it cost to maintain a Trailblazer EXT?

Maintenance costs can vary depending on the year and condition of the vehicle, but expect to spend around $500-$800 per year on routine maintenance.

Is the Trailblazer EXT a good family vehicle?

Yes, the Trailblazer EXT offers a spacious interior and an optional third-row seat, making it a suitable choice for families.

Conclusion

Choosing the right year of the Chevrolet Trailblazer EXT can make a significant difference in your ownership experience. While the 2006 model stands out as the most reliable, careful inspection and maintenance are crucial for any used vehicle. Consider your needs, budget, and willingness to address potential issues before making a purchase.