2005 Chevrolet Trailblazer ext 370 problems

General information about Chevrolet-Trailblazer ext 370
Overview of popular issues

The Chevrolet TrailBlazer (also known as Trailblazer) is a mid-size SUV produced by Chevrolet, a division of General Motors. The nameplate was first used in North America from 2001 to 2008; in 2009, it was replaced by the Traverse, as a crossover SUV. In 2011, production of a newly-redesigned version of the Trailblazer for the Asian and Brazilian markets began.

Blazer trim line (1998)

The TrailBlazer name was first introduced for the 1999 model year as an upscale trim level of the compact 4-door Chevrolet S-10 Blazer. It offered additional features on top of the previously top-of-the-line Chevrolet S-10 Blazer LT trim level, including an AM/FM stereo with single-disc CD player and optional remote cassette player, OnStar, color-keyed front and rear bumpers, side cladding, a leather-wrapped steering wheel, upgraded alloy wheels, a full-size spare tire and wheel, and upgraded cloth seating surfaces with power front bucket seats. Options such as a Bose premium sound system, leather-trimmed seating surfaces with heated front seats, power sunroof, and gold accents for the exterior emblems were all available for the original TrailBlazer trim package. The TrailBlazer trim was discontinued after 2001, when an all-new TrailBlazer model was introduced as a mid-size SUV. Production of the S-10 Blazer overlapped until the 2005 model year.

First generation (KC; 2001)

The first-generation TrailBlazer is based on a truck platform officially known as GMT360, with all models having four-wheel-drive layout as an option with both automatic engagement and the more traditional "Auto," "2-High," "4-High," and "4-Low" gearings, except the SS model which features an all-wheel-drive system. The TrailBlazer features an independent front suspension, and a five-link rear suspension. A G80 locking rear differential is available as an option on all models except for the SS, which has a G86 LSD as standard. An LTZ trim level had upgraded interior features (leather), upgraded sound system (Bose), and alloy wheels. All TrailBlazers came factory-equipped with a detachable towing hitch.

The TrailBlazer was updated in 2005 for the 2006 model year. An updated front fascia on all models (except for the base version) and new interior trim were included with the refresh. The SS received trim-specific front and rear fascias plus color-matched side skirts.

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Common 2005 Chevrolet Trailblazer ext 370 problems

The Chevrolet Trailblazer EXT 370 2005 has been known to have several common problems based on complaints from its owners.

Exterior Lighting Problems: The 2005 Trailblazer has experienced issues with exterior lighting, including turn signal malfunctions and brake light bulb loosening in the socket. The turn signal malfunction can cause the front marker/turn lights and rear turn lights to flash in a manner similar to hazard warning, rather than flashing on the desired side only. Brake light bulb loosening can cause the bulb to flicker and eventually become inoperative.

Seat Belt Lock-Up: The front driver and/or passenger front seat belts have been known to lock up in the retracted position, making it difficult for passengers to move freely.

Electrical System Concerns: Multiple electrical concerns have been reported, including diagnostic trouble code U1064 and various models experiencing electrical issues, such as the 2005 Buick Rainier and 2005 Chevrolet Trailblazer.

Tire Size Limitations: The Trailblazer suspension has an overhanging upper ball joint, which inhibits the user from going too large with the tires without making other modifications. The maximum tire diameter without modification is 30.5", meaning one of the following tire sizes should fit without any modifications: 17" 245/70/17 = 30.50" diameter, 255/65/17 = 30.05" diameter, 265/65/17 = 30.56" diameter, 285/60/17 = 30.46" diameter, 16" 245/75/16 = 30.46" diameter, 255/70/16 = 30.05" diameter, 265/65/16 = 29.56" diameter, 285/65/16 = 30.58" diameter.

4WD/4x4 Issues: The Trailblazer has experienced issues with its 4WD system, including a non-selectable AWD system that lacks certain parts discussed in troubleshooting guides. Some of these issues can be resolved by checking the motors, the transfer case encoder motor, and the front axle disconnect actuator for damage or corrosion.

2005 Chevrolet Trailblazer ext 370 engine

What are common problems with a 2006 Chevy Trailblazer?

Are there any recalls on a 2005 Chevy Trailblazer?

There are 2 recalls that may affect your 2005 Chevrolet Trailblazer. Check your 2005 Chevrolet Trailblazer for safety recalls and get them fixed for free at a Chevrolet dealership near you.

What are the bad years for Chevy Trailblazer?

Key Points. Considering reliability, cost, features, and more, the best years for the Chevy Trailblazer include 2006, 2008, and 2009. Be cautious of Trailblazers from 2002-2005, because they have a worrying number of recalls and registered complaints.

Do Trailblazers have problems?

The 2023 Chevrolet Trailblazer, while robust and reliable, has been reported to have a few common issues. Some owners have noted occasional trouble starting the engine, indicating a possible fault in the ignition system.

2005 Chevrolet Trailblazer ext 370 complaints

The NHTSA has received 0 complaints about various vehicle components related to the 2005 Chevrolet Trailblazer ext 370.

You can leave your car complaint via the special form below.

Additional sources

More sources of information about 2005 Chevrolet Trailblazer ext 370 problems:

HELP Please!! Trailblazer Fuel Sending Unit - Blazer Forum - Chevy ...

https://blazerforum.com/forum/trailblazer-gmt360-gmt370-2002-2009-tech-43/help-please-trailblazer-fuel-sending-unit-19774/

Apr 15, 2008 ... Now for my problem. I also have a 2005 Trailblazer LT V6 4wd. Recently the fuel gauge has stopped indicating accurately and erradically moves ...

Having 4WD(4x4) issues? Look inside! | Chevy TrailBlazer ...

https://www.trailvoy.com/threads/having-4wd-4x4-issues-look-inside.81739/

Dec 11, 2010 ... Information in this thread applies to 360/370 trucks with selectable 4WD functions (TrailBlazers, Envoys, Ascenders?). Trucks with non ...

Low Beam Headlight Recall for 2006-2008 models | GMTNation

https://gmtnation.com/forums/threads/low-beam-headlight-recall-for-2006-2008-models.12430/

Dec 2, 2014 ... ... 2005 Chevy TB EXT 370 for the search. Date Complaint Filed: 06/29/2014. Component(s): EXTERIOR LIGHTING Date of Incident: 05/14/2014. NHTSA ID ...

2005 trailblazer fuel filter location - Blazer Forum - Chevy Blazer ...

https://blazerforum.com/forum/trailblazer-gmt360-gmt370-2002-2009-tech-43/2005-trailblazer-fuel-filter-location-9119/

Mar 6, 2007 ... TrailBlazer GMT360/GMT370 (2002-2009) Tech ... 05 Chevrolet Trailblazer and Trailblazer EXT ... seems to be a common problem with the 2005 models.