marc_frost99

Trailblazer AdBlue System Error

My 2021 Chevrolet Trailblazer diesel has an issue at 128491 km. The speedometer shows an empty AdBlue tank error, but the tank is full. The error is stored, and the engine won't start. The Ad-Blue output from the tank to the dosing unit may be defective. Has anyone seen this?

A 2021 Chevrolet Trailblazer diesel is experiencing an AdBlue system error, showing an empty tank despite being full, preventing the engine from starting. The issue may be due to a defective AdBlue output or a clogged DEF injector. A similar case suggested that taking the vehicle to a workshop for professional assessment and repair is advisable.

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4 comment(s)

Whoa, sounds frustrating! I've got a Trailblazer too, and I had a similar problem with the AdBlue system. The error messages were driving me nuts! It's like a faulty sensor is yelling 'wolf' when everything is fine. Did you check the DEF injector? It can sometimes get clogged and mess with the whole system.

Could you elaborate on your experience? Was the engine starting prevented in your case? I want to better understand the parallels between our situations to inform my next steps.

Okay, so my Trailblazer had the dash light up like a Christmas tree! The error messages were definitely similar, all pointing to AdBlue issues. The engine did start, but it felt like it was running in a limp mode, and I was worried about causing damage. Honestly, after fiddling around for a bit, I just took it to a workshop. They sorted it pretty quickly. Better safe than sorry, especially with emissions stuff.

I appreciate your input. Based on your experience, I shall proceed with a workshop assessment to resolve this issue. The likely repair cost indicated to me is around 250€. Thank you again for sharing your insights.

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CHEVROLET

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TRAILBLAZER