Why does my GMC Denali not lock and unlock?

Ok, something just started happening with our 2016 GMC 2500HD Denali 4×4 with the diesel. The remote door lock and unlock won’t work every time from either of our fobs.

Why does my GMC Sierra 1500 lock up?

Ok so I have a 2015 gmc sierra 1500. after backing up and putting it into drive I get going for about 5 to 10 seconds ill get a jarring lock up for a split second. First time it happened I was… No registered users viewing this page.

What should I do if my door lock is not working?

If you need to have this door lock and power loss checked, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the issue for you and make or suggest the necessary repairs. The statements expressed above are only for informational purposes and should be independently verified.

Why is my remote lock and unlock not working?

And both failing at the same time, especially given one gets frequent use and one barely gets any use. We know it’s not a fuse because it does work from time to time. Given that batteries are so cheap, I’d go that route first. If no joy and you can duplicate the issue easily, this sounds like something for the warranty.

Why does my GMC Duramax door lock not work?

The door lock actuators on the ’07 and up trucks are complete garbage and go out all the time. I couldn’t even tell you how many of them I have replaced.

What to do if your door lock relay is not working?

Power door locks do not function. If your power door lock system is having any issues, or you suspect that your relay may be having a problem, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if your car needs a door lock relay replacement.

What to do if your car door lock wont work?

Operate each door lock switch in the vehicle to determine if the doors can be locked with any of the switches. If the doors lock with any one switch the most likely problem is a defective switch on the door that is inoperative.

How do I disable delayed auto locking on my GM Truck?

The entire idea is that you can turn your truck off, put your keys in your POCKET, press lock, there should be a chime that sounds when you do this. Then after you shut your drivers door you have 5 seconds to walk to any other door and open it. It will not lock until 5 seconds after all doors are closed. I use it all the time on my yukon xl.

The door lock actuators on the ’07 and up trucks are complete garbage and go out all the time. I couldn’t even tell you how many of them I have replaced.

Why does my rear door lock not unlock?

My rear door locks will not unlock, front ones work fine with remote and inside control panel. The rear locks won’t budge (have to unlock manually). Looks like it could be the on/off relay switches.

What causes a door lock relay to not work?

Power door locks do not function. Power door locks that do not function are another common symptom for a problem with the door lock relay. If the power door lock relay fails, it will cut off power to the entire power door lock system and may cause them to not function correctly.

Where is the door lock relay located on a 1998 GMC Sierra?

The door lock relay is located under the center of the dash. Wow! This is probably why none of my searches are producing informative results. I also currently own a 1998 GMC Sierra truck and the dash looks identical. I have the Chilton manual for my 98′ but it never dawned on me to look.

Can a power door lock only lock the passenger side?

On the passenger side the power door switch will unlock and lock the drivers side door but it will only unlock the passenger side. So that is the trouble I’m having Neither switch will lock the passenger side, I was wondering out of the three relays what one could cause that.

What happens if you have a bad door lock relay?

However, vehicles without door lock cylinders will not be able to lock or unlock the doors until power is restored. For vehicles with traditional style door lock cylinders and keys, a bad power door lock relay will merely disable the power door lock feature.

Why does my car door lock not work?

If the door lock relay has any internal or wiring issues, it can cause the door locks to function intermittently. The door locks may function correctly one moment, and in the next will cease to operate. This can be an inconvenience to the driver when trying to lock or unlock the vehicle.

What to do when power door lock wont work?

To view the next available mode, press and hold the reset stem until the mode appears. Release the reset stem and press and hold again to view the next mode. Once the desired mode is shown on the DIC display, briefly press the reset stem to set your choice.

How does a power door lock work on a Chevy Malibu?

Here’s a power door lock wiring diagram for a 2009 Chevrolet Malibu. The body control module (BCM) supplies a voltage to each door lock switch. When you move the switch to the lock position, the switch grounds the supply voltage and the BCM sees a full voltage drop.

What to do if your power door lock is not working?

If the ground is good, remove the door trim panel and check for power and ground coming into the power door lock actuator. If the relay and switch are working properly but you’re not getting power and ground at the door lock actuator, check the wiring harness in the hinge area of the door.

How does a power door lock get ground?

Power flows through the circuit breaker and into the power door lock actuator motor. To get ground, the ground path goes through the non-energized power door LOCK relay (which is in the ground position when not energized) and then to ground. The process is similar when you move the switch to the lock position.

Why does my GMC Denali not lock and unlock?