GMC Jimmy won't start, battery cable overheating and ignition stuck on on GMC Jimmy

Submitted by abcdggggggggggggg · Jun 23, 2025
Published by RepairPal

Problem overview

Some GMC Jimmy owners report experiencing starting issues, with their vehicles failing to start despite having sufficient power to turn over, which may indicate a problem with the starter. Additionally, overheating battery cables have been noted, often due to defective connections caused by corrosion or open circuits, leading to excessive current flow that can damage components. Furthermore, some owners find that their ignition is stuck on, potentially linked to electrical issues involving the starter or battery. To address these concerns, it is advised to check the battery's power and voltage, inspect the starter to ensure it is receiving power at the solenoid, and examine battery cable connections for corrosion or damage. If problems persist, consulting a professional mechanic for further diagnosis is recommended.

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