Skip the auto shop - Our mechanics make house calls

Q: Turn signals not working

asked by on

The turn signals are not working, although they flash on the dashboard. The interior dome light is also not working.

In my experience, I have come across a number of vehicles, such as with your Chevy Colorado, where multiple light bulbs have gone out at once. Or times where a bulb or two was previously out but only noticeable when the other went out. If you are comfortable removing and replacing your Colorado’s light bulbs, you can check the bulbs to determine if they are in good working order. Replace noticeably bad bulbs, then attempt to use your Chevy’s turn signals and dome lights for normal operation. If the bulbs are good, then the issue may now fall in the body control module or BCM. The BCM is responsible for various functions in your Colorado including use of the turn signals and dome lights. I would highly recommend enlisting the help of certified mechanic so they can properly diagnose why your dome and turn lights are not working.

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: lose power then engine starts running rough. i have to turn truck off then restart it

When looking into this problem that you have I came across a possible fault with the power train control module (PCM) causing different throttle sensor codes. A technical service bulletin identified the part number and date ranges for your PCM....

Q: car has issues every time I fill up the gas tank

The system is very sensitive to how fast you put the fuel in. If you refuel at the fastest rate, then you will get excess fuel into the vapor vent system and the carbon canister will get saturated. The...

Q: How do I use the lane change signal feature?

The lane change signal feature flashes the turn signal three times to let surrounding drivers know that you are changing lanes. To use this feature, pull up or push down on the turn signal level and immediately release.

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...