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On vehicles equipped with an engine block heater, the heater power cord may become damaged in cold temperatures.
As of this writing General Motors has not yet released a notification schedule for this recall. If you don't receive notification in a timely manner and believe you should have, please contact your GM dealer for further instruction. They may ask for your vehicle identification number (VIN), so please have it handy when you call. The GM recall number is 14257.
In cold temperatures, the insulation on the engine block heater cord can become damaged, allowing the wires to be exposed. Exposed wires increase the risk of electrical shock and personal injury if the cord is handled while it is plugged in. Dealers will replace the block heater cord to correct this concern. The new cord is rated for temperatures of -40C.