Buick Terraza Problem Report

Buick Terraza Check Engine Light Due to Gas Cap Issue

(17 reports)

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

The check engine light stays on and periodically the indicator warning flashes saying check gas cap. I have replaced the gas cap, but nothing changed. -
gas cap light comes on and the next day chech engine light comes on; ask dealer about this and he stated there could 5 0r 6 things that cause this--to check this $90.00 not counting repairs. -
check gas cap is on .changed it with a new one check engine light came on .then gose out again .has a new gas cap on still light is on -
Check gas cap warning starting coming on last week. On Sunday the check engine light came on and stayed on. I have tightened, unscrewed and screwed the gas cap. Electrical? Also, has anyone else had problems with the radio? I can turn it on, but there is no sound. If I turn the car off and restart, the radio works again. The display shows the radio/CD player on, but no sound. -
The check engine light came up due to gas cap issue. does anybody know how to correct this issue? -
Check engine light came on. Replaced gas cap and light went off. -
Same issue, engine light is on. It states to "check gas cap." I replaced the gas cap twice and had the dealer to reset the light. Came back on the next day. -
Check engine light illuminates periodically but then corrects itself. -
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