Skip the auto shop - Our mechanics make house calls

Q: Why are my signal mirrors flashing wile my truck is turned off its just the blinker in both mirrors, mirrors are factory

asked by on

Haven't drove all day went outside and both signals in the mirrors are flashing unplugged battery and plugged back up and they are still flashing

A: Hello. If any sort of lights keep flashing ...

Hello. If any sort of lights keep flashing when the vehicle is turned off then there is likely some sort of electrical issue present in the vehicle. A few common causes for lighting malfunctions are a faulty turn signal switch, a faulty relay, or bad wiring. In some instances the headlight switch can short out internally and send power to the lights even when the switch is set to off. Power is also ran through a series of relays, the turn signal and flasher relay. If either of these short out they too can send power to those lights, causing them to function incorrectly. A short as a result of worn or faulty wiring can also cause the lights to stay on even when the car is off. I would start by checking the relays to see if they are functioning properly, and then move on to the switch and finally wiring.

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: What can cause the RPMs to go super high while driving at one constant speed?

Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the...

Q: How do I turn on the heated mirrors?

The heated mirrors can help give you visibility out of your side mirrors by eliminating any rain, ice, or condensation. The heated mirrors will automatically turn on when the rear defroster is turned on.

Q: Malfunction indictor lamp comes on and car won't move

A few different things have the potential to cause the transmission faults you have described. The most common would be a transmission position sensor/range switch, neutral safety switch, shift solenoid, low fluid level, or the transmission itself. I'd recommend getting...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...