2006 Chevrolet TrailBlazer 4.2L 6-cyl. 4x4 4-speed Automatic Consumer Review - Sensor/gauge issues in general

2006 Chevrolet TrailBlazer SUV - Consumer Review

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Sensor/gauge issues in general
By Allie on


2006 Chevrolet TrailBlazer LS 4dr SUV 4WD (4.2L 6cyl 4A)


My TB has been great except for the fuel economy (13 mpg hwy) and sensor issues. "Service stabili-trak" warning comes on often but resets when the car is turned off so the dealer saw nothing wrong. They never fixed it and told me it was probably just a sensor issue. Around 45k miles, the gas level gauge stopped working which is a pain since it constantly beeps that I'm out of gas. The "check engine" light comes on as a result and it failed emissions but the dealer won't fix it under emissions warranty. My cousin works for a parts dealer and says GM cars have TONS of sensor issues. Firestone told me the same thing. A new battery caused no electrical issues as others have had. AC is great

Favorite Features

Love the in-dash readouts for mpg, fuel used, oil life, two trip meters, etc. Rear seat controls include a/c and vents, stereo, and two power ports. Roomy.

Suggested Improvements

Recall sensor issues and repair at no cost. This is a wide-spread problem.
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By frumpytuin
on 03/04/11 18:02 PM (PST)

Are your tires properly inflated? If they are underinflated, then put more air in the tires so rolling resistance reduces therefore improving fuel-economy. I usually get around 20 mpg on the highway with a 5.3 V8 engine

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By vbriody
on 02/04/11 07:17 AM (PST)

Allie- With the sensors.....the Stab-Trk lights .......have them reroute the wires b/c they are too tight :D There's too much tension on the wires and it's enough to give it a hissy fit all the time. I've owned my 2006 Trailblazer less than a month and I've been back to the dealer a bunch. This rerouting of the wires and relieving the tension/pull on them, has kept the light off for several days now. Our check engine light kept coming on for "misfires" and it was 1,2, and number 6 cyclinders that were dirty.......#6 is still giving us trouble but a STRONG fuel injection cleaner and engine cleaner is a good choice. My light would stay on 99% of the time, and just last night it flashed.......only to be reset then back on again........which we know is the misfire and is being worked on. Hope this helps!

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