Question about 2003 Jeep Grand Cherokee

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Can I change the battery without harming the car computer?

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U disconnect the negative post first, then reverse for new battery, connect neg 1st..

Posted on Apr 13, 2009


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COMPUTER MEMORY KEEPER too many people change batteries and loose they're computer programed settings to they're cars .and radio stations etc.....advance auto parts has a tool that costs 4.99 and all you have to do is buy a nine volt alkaline battery separate, plug this into your lighter before changing battery and no memory will be lost. some cars you have to turn ignition to on position Nissan Altima is one . in any case it is safe to turn ignition on all cars. tool is made by AUTOCRAFT part# ac590

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When tha battery of tha car is no charge and i pass electriciti from oder car and tha jumpers shoks can damage the computer

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