2009 Chevrolet Trailblazer Q&A
2009 Chevrolet Trailblazer Question: What causes emission system failure warning light staying on and is it serious?
a trailblazer has a 4.2 litre engine.whats your question friend? - joelburke26
Need a scan test and it may have to go back to a dealer. Not many Captiva's around, at least not here in the East. Also i guess that is why you could not enter that vehicle on this site. Don''t think it's too serious, since the light goes off at times. - pushrod