Help! Door locks randomly unlock

sluss88 · 07-23-2013, 10:27 PM

My '09 Z is experiencing an issue where the door locks unlock on their own. This happens while driving as well as when the car is locked and I'm not around. Originally I noticed that the doors didn't unlock when I turned the car off but now this has gotten worse. Has anyone experienced this and know what may be wrong or how to reset this?
Thanks!

Elan · 07-23-2013, 11:22 PM

Yep this happened to me about two months ago (As I was driving through the hood I might add). I freaked out at first, let my car sit there when I got home and then about an hour later, it was fine again and not a problem since. Try checking all of your doors and trunk to make sure it's tightly shut. Restarting fixed it for me after checking all my doors. If it is truly a problem that cannot be fixed, there is a way to disable the auto-locking system. If it's still giving you trouble after everything, try disabling and re-enabling the system.

I see you have owned a 350Z. Worst case comes to worst, you will have a similar locking system to that on your 370Z.

simota1 · 07-24-2013, 05:29 AM

i had a problem with my door locks always locking like over and over and over... you get the point anyways i have a 09 too so maybe its the same problem as mine they replaced the master switch and it never came back ever again

falconfixer · 07-24-2013, 06:08 AM

didymus · 07-24-2013, 06:23 AM

try using your second fob?

Mr&Mrs · 07-24-2013, 06:38 AM

Funny this popped up, it happened to me a couple weeks ago. I was working in the garage and heard the car lock for no reason. I had just detailed it so I thought maybe I done something. It has been fine since so I didnt research it any further.

LostSol · 07-24-2013, 08:09 AM

On another car I had this was an early sign the battery was going dead, not sure if it pertains to the Z but it doesn't cost anything to have your batt checked.

Mr&Mrs · 07-24-2013, 09:36 AM

Mine is on a tender, so for me I can rule that out.

Quote:

Originally Posted by LostSol

On another car I had this was an early sign the battery was going dead, not sure if it pertains to the Z but it doesn't cost anything to have your batt checked.

Brutal 370Z · 07-24-2013, 09:59 AM

Could be an issue with the battery in the fob.

sluss88 · 07-24-2013, 03:53 PM

Update: everytime I press the passenger window button on the driver side door the car unlocks. Also, if I press the unlock button on the drivers door nothing happens, if I press the lock button it just stays unlocked.

SouthArk370Z · 07-24-2013, 04:57 PM

Sounds like an electrical problem - bad switch, bad module, bad wiring, &c.

Check the bulkhead connector where the door harness connects to the body harness.
Press on the door panel and armrest areas while operating the switches and see if that improves/exacerbates the situation.

sluss88 · 07-28-2013, 09:31 AM

Update 2: I used the bottom of my fist to bang on the switch area and like magic it was fixed. I've been good the past four days. Thanks for all the help.

07-23-2013, 10:27 PM	#1 (permalink)
sluss88 Base Member Join Date: Mar 2013 Location: New Cumberland Posts: 3 Drives: 04 Nissan 350Z Tour Rep Power: 12	Help! Door locks randomly unlock My '09 Z is experiencing an issue where the door locks unlock on their own. This happens while driving as well as when the car is locked and I'm not around. Originally I noticed that the doors didn't unlock when I turned the car off but now this has gotten worse. Has anyone experienced this and know what may be wrong or how to reset this? Thanks!

07-23-2013, 11:22 PM	#2 (permalink)
Elan Track Member Join Date: May 2013 Location: Alpharetta, GA Posts: 906 Drives: Airplanes Rep Power: 15	Yep this happened to me about two months ago (As I was driving through the hood I might add). I freaked out at first, let my car sit there when I got home and then about an hour later, it was fine again and not a problem since. Try checking all of your doors and trunk to make sure it's tightly shut. Restarting fixed it for me after checking all my doors. If it is truly a problem that cannot be fixed, there is a way to disable the auto-locking system. If it's still giving you trouble after everything, try disabling and re-enabling the system. I see you have owned a 350Z. Worst case comes to worst, you will have a similar locking system to that on your 370Z. __________________ 2009 370Z NISMO #477 \| AAM Competition Short Tails \| AAM Competition HFCs \| K&N Typhoon CAI \| Kenwood DPX300U \| Rockford Fosgate PRIME R300-4 \| Rockford Fosgate Punch P165 \| Rockford Fosgate Punch P300-12 \| Polk Audio db1001 \| 15% Tints \| GTR Start Button \| Last edited by Elan; 07-23-2013 at 11:24 PM.

07-24-2013, 05:29 AM	#3 (permalink)
simota1 A True Z Fanatic Join Date: May 2009 Location: Dededo, Guam Posts: 6,642 Drives: solid red 370z 6mt Rep Power: 405	i had a problem with my door locks always locking like over and over and over... you get the point anyways i have a 09 too so maybe its the same problem as mine they replaced the master switch and it never came back ever again __________________ *TOP SECRET/POWERHOUSE AMUSE/ARC/DAYTONA RACING/VARIS/MINES/GANADOR/J-LINE/WORK EMOTION CR KAI/GT SPEC/CARBON SIGNAL/ZOOM ENGINEERING/ CARBON FIBER ELEMENT/STILLEN/*

07-24-2013, 06:08 AM	#4 (permalink)
falconfixer Track Member Join Date: Feb 2012 Location: 10aC Posts: 978 Drives: Taco Rep Power: 76	fuct, Mr&Mrs, SouthArk370Z and 1 others like this.

07-24-2013, 06:38 AM	#6 (permalink)
Mr&Mrs A True Z Fanatic Join Date: May 2010 Location: Tampa Posts: 4,192 Drives: RZ34 Rep Power: 15161	Funny this popped up, it happened to me a couple weeks ago. I was working in the garage and heard the car lock for no reason. I had just detailed it so I thought maybe I done something. It has been fine since so I didnt research it any further. __________________ Project Z <--Click - Check out the link too many mods to list!

07-24-2013, 06:23 AM	#5 (permalink)
didymus Track Member Join Date: Jun 2009 Location: Providence / Boston Posts: 564 Drives: 280 / 370Z Rep Power: 305	try using your second fob?

07-24-2013, 08:09 AM	#7 (permalink)
LostSol Premium Member Join Date: Jan 2013 Location: Orlando Posts: 1,021 Drives: 2010 370z 40th A.E. Rep Power: 15	On another car I had this was an early sign the battery was going dead, not sure if it pertains to the Z but it doesn't cost anything to have your batt checked. __________________ 2010 Nissan 370Z 40th Anniversary Edition #762/1000 \| Forgestar \| Michelin \| Swift \| TRS \| Z Speed \| ARK \| Z1 \| Hawk \| CFE \| Evo-R \| GTMat \| Stillen \| Seibon \| Whiteline \| Pioneer \|

07-24-2013, 09:59 AM	#9 (permalink)
Brutal 370Z Enthusiast Member Join Date: Jun 2011 Location: Greater Toronto Area Posts: 357 Drives: 11' MB/Pers/6M/S/Nav Rep Power: 13	Could be an issue with the battery in the fob. __________________ Stillen G3/CBE/HFC, Nismo S-tune Front Chin Spoiler, 20% tint, Password JDM V2 Shift Knob

07-24-2013, 03:53 PM	#10 (permalink)
sluss88 Base Member Join Date: Mar 2013 Location: New Cumberland Posts: 3 Drives: 04 Nissan 350Z Tour Rep Power: 12	Update: everytime I press the passenger window button on the driver side door the car unlocks. Also, if I press the unlock button on the drivers door nothing happens, if I press the lock button it just stays unlocked.

07-24-2013, 04:57 PM	#11 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	Sounds like an electrical problem - bad switch, bad module, bad wiring, &c. Check the bulkhead connector where the door harness connects to the body harness. Press on the door panel and armrest areas while operating the switches and see if that improves/exacerbates the situation. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

07-28-2013, 09:31 AM	#12 (permalink)
sluss88 Base Member Join Date: Mar 2013 Location: New Cumberland Posts: 3 Drives: 04 Nissan 350Z Tour Rep Power: 12	Update 2: I used the bottom of my fist to bang on the switch area and like magic it was fixed. I've been good the past four days. Thanks for all the help.

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