Q: Trunk light stays on when trunk is closed

asked by on

The trunk light stays on when the trunk is closed. What should i do?
My car has an automatic transmission.

Hi there. It sounds like the trunk courtesy switch has failed and allowing the light to stay on as if the trunk is open. This switch is usually built into the latch assembly. It can be tested for continuity with a digital volt/ohm meter to be sure that the switch is as fault. A broken wire can produce the same concern. The wire harness for the trunk lid gets moved back and forth each time the trunk is open/closed. This constant moving is similar to removing a soda can tab; you wiggle back and forth enough and it will break off. If the switch tests good, then suspect a broken wire in the trunk lid harness. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with an electrical problems inspection.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Trunk light stays on when trunk is closed

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: Remove a wired tracking device

These trackers are typically what they call "plug-and-play" type devices and can usually just be unplugged if you know where it's located. Depending on how it is connected, it should be simple to remove. If you are unsure about how...

Q: How do I use the external USB port?

Your external USB port is located in your glove compartment. To connect to it, simply plug the USB cable from an external music device into the USB port. Then press the AUX button on the stereo system, and you’ll be...

Q: My car is experiencing braking problems.

A failing master cylinder may cause an intermittent lack of pressure in the braking system. As far as the sizzling noise, a seized brake caliper can cause some pressure to be applied to the brake on that corner of the...

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...