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Pete, GMC Technician
Category: GM
Satisfied Customers: 27532
Experience:  14 years GM dealership technician and training.
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H-1 Hummer 1998 Lights are flashing when they turned off All

Customer Question

H-1 Hummer 1998
Lights are flashing when they turned off
All lights flash at a steady rate, not affected by engine RPM.
They do not flash when the lights are turned on.
I think the alternator is going out.
Need help.
Submitted: 9 months ago.
Category: GM
Customer: replied 9 months ago.
The Hummer is powered by a Chevy 6.5 turbo diesel. Stock for hummer
Expert:  Pete replied 9 months ago.

Hi my name is ***** ***** I will be happy to assist with this today.I apologize for any delay.

If anything after market is installed like a remote start or alarm system it is possible that this is interfering with the light operation causing this issue here.I have had to remove the after market components in the past before for issues like this or have it tested and replace the affected part.If your model does not have any after market components installed let me know.

Let me know if you need anything else and feel free to rate my help here as this is how I receive credit for my time.A 5 star rating is appreciated.Thanks Pete