champ

Hi Vangara, I agree this place is relatively silent then other chevy forums in US. It seems here in this region chevy owner dont have tongue to talk or intention to help others. Answering your question Tahoe comes in 3 trims and I think yours one is the lowest of all, and in highest trim you have 3 out of 4 features and No SBZA in top trim as well. It may be worth checking with dealer that how much extra will it cost to get these features added on as i am sure body and interior have the provision for such features its just that they have not installed it.

call these guys http://www.chevroletdubai.com/spare-part/ahram-auto-spare-parts-sharjah-t313.html

It depends on which year model your Aveo is. Usually it should be in range of 100 - 200 dirhams from Sharjah spare part market. With dealer it must be more. Hope it helps.

Why is there blue smoke dispersing from the exhaust there is not problem in engine that i have felt.