How to check if all lights dimming and shock shifting on driving

 How to check if all lights dimming and shock shifting on driving.

Model: Hyundai Genesis(BH)

Year Model: 2009

Fuel: Gasoline

Displacement: (V8)4600cc

Subject: Sometimes all lights suddenly dimming and Automatic transmission shock shifting while driving specially when the engine hot.

1) Condition

1. Sometimes all light suddenly dimming on driving.
2. Automatic transmission shock shifting sometimes.

2) Cause

1. Engine compartment fuse box bolt loosed.

3) Diagnosis

1. Scan tool check.
   = No trouble code
2. Check for the ground terminal.
3. Clean and and re-fixed ground terminal.
4. check fuse box
   =3 Bolt from engine compartment fuse box loosed.
5. retightened bolt and not.

4) Guide to Repair

1. Retightened bolt and nut.
2. more info

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