Check the Negative (-) terminal clamp is tight
Check the Positive (+) terminal clamp is tight. CAUTION If using a spanner to tighten the terminal, be careful not to short the spanner on the bodywork
Check the battery is generally secure, and if loose, tighten the battery retainer
To tighten, a 10mm socket or spanner is needed. Not too tight as you may damage the battery casing
Find a Haynes product for your Hyundai:
Search by registration mark
Search by make & model