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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1685
Experience:  GM Grand Master Technician 2007. 14 year experience.
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My hazard lights won't shut off. The hazard or four way.

Customer Question

My hazard lights won't shut off.
JA: Just to clarify, what are the exact lights you're talking about?
Customer: The hazard or four way. They have been flashing since I took my dog to the park. That's about an hour.
JA: What is the make/model/year of your car?
Customer: It's a 2012 GMC terrain.
JA: Are you fixing your Terrain yourself? What have you tried so far?
Customer: I've tried shutting the car off. I ask people at auto zone and they said to hold the button before and after I tried to start it. Nothing. They also said to disconnect the battery. I really don't want to try that at my house.
JA: Anything else you want the mechanic to know before I connect you?
Customer: No. That's it.
Submitted: 9 months ago.
Category: GMC
Expert:  david craig replied 9 months ago.

Hi Im David. let me see if theres a fuse you can pull. allow me a minute. thanks.

Customer: replied 9 months ago.
OK. Thanks.
Expert:  david craig replied 9 months ago.

try pulling the RAP relay in the engine compartment fuse box.

Expert:  david craig replied 9 months ago.

if that doesnt do it. its ok to disconnect the negative battery terminal. then reconnect it and see if they quit blinking.

Customer: replied 9 months ago.
Where would that RAP be located?
Expert:  david craig replied 9 months ago.

let me get you a diagram

Expert:  david craig replied 9 months ago.
Customer: replied 9 months ago.
I'm having trouble finding the box.
Expert:  david craig replied 9 months ago.
Expert:  david craig replied 9 months ago.

if you cant find it. disconnect the battery.

Customer: replied 9 months ago.
I think I found it. But everything has a number.
Expert:  david craig replied 9 months ago.

#42

Expert:  david craig replied 9 months ago.

i dont understand your hesitance to just disconnect the battery.......

Customer: replied 9 months ago.
You're going to think I'm stupid but there is no number 42 that's plain and I don't see where to disconnect the battery.
Expert:  david craig replied 9 months ago.

i dont think you're stupid. please do not say that about yourself. i will send you that information

Customer: replied 9 months ago.
Thanks. But I'm getting very frustrated.
Expert:  david craig replied 9 months ago.

here is the location

Expert:  david craig replied 9 months ago.

in the engine compartment, you have to remove the plastic cover that covers the computer. but there should be an external post to disconnect the cable.

Expert:  david craig replied 9 months ago.

it is under the ECM in the engine compartment on the drivers side. It the black plastic thing beside the relay/fuse box. you have to remove the ECM to access the battery.

Customer: replied 9 months ago.
I can't see how to get the cover off.
Expert:  david craig replied 9 months ago.

i believe it just has clips you press in.

Customer: replied 9 months ago.
If it's the same cover where the fuses are I got it. That's the only thing I see that I can push in.
Customer: replied 9 months ago.
How long before my battery goes if I don't get this soon.