Skip the auto shop - Our mechanics make house calls

Q: 2004 Tahoe turn signal on and the headlights blink also.

asked by on

We have a 2004 Chevy Tahoe in the shop that had front end damage. We fixed the front end and put back together according to spec. We made sure that all wires, Plugs etc was installed correctly with no cross issues, crimps, etc.. During our inspection after Tahoe was completed we was doing our light check. We noticed that when we turned on either of the turn signals, the turn signal would blink and also the head lights would blink along with the turn signal. we also noticed that the left head light is nice and bright and the right headlight is dim. The fog lights are also dim when you turn them on. I bought a Multi-function switch from a salvage yard and this did not correct anything. PLEASE HELP

My car has 186399 miles.
My car has an automatic transmission.

Hi there. Check to see where you have grounded the wires to the lights on the front of the vehicle. It sounds like that all of the lights are being grounded on the same terminal. This is why the headlights are flashing and why the fog lights are dimming out. If you need further assistance with having the headlights flash, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2008 GMC Acadia: passenger side window switch will make the window go down, but not back up. Now master switch on driver's side wo

The switch internals of one or both switches are faulty or there is a bad connection to the switches. To resolve this, the switches have to be removed from the door so that you can get access to the terminals....

Q: Codes P0171 and P0174

Codes P0171 and P0174 pertain to the engine running lean on both bank one, and bank two, meaning that both sides, or the complete engine, is running lean. The lean condition could be one of several possible causes. The intake...

Q: 15 caravan put left turn signal light,right turn flashes also front and rear.

I have seen either a bad bulb or the wrong bulb cause all kinds of issues similar to what you are having. The problem is caused because power is not getting to the right ground. The power is backfeeding...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...