The structure, working principle and programming principle of the engine theft-proof system on SHANGHAI GM BUICK SAIL are introduced.

主要介绍上海通用别克赛欧发动机防盗系统的结构、工作原理和编程原理。

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The operation principle of two-stage serial data bus for Shanghai GM Buick GL car was introduced in this paper, a special trouble diagnosis and shooting was also discussed.

介绍了上海通用别克GL型轿车二级串行数据总线的工作原理，论述了其一起数据传输特殊故障的诊断与排除。

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GM is continuing to produce its four main brands Cadillac,Chevrolet, Buick and GMC.

VOA: special.2009.10.09

But even with that recent success, odds are against GM making Buick a go-to option for large numbers of drivers below the age of 50.

WSJ: GM in next phase of hoped for Buick revival

Buick and GM sales both were up 19%, and Chevrolet was up 10%.

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It has done quite well in overseas markets, especially in China, where GM compacts such as Buick Excelle, Regal and Chevrolet Lova have surpassed competitors.

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