# Remote door locks and alarm on a 2007 Sonata **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** hyundai, sonata, alarm, locks\ **Created:** [June 26, 2010, 8:51pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926 "2010-06-26T20:51:58Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![GRoy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/groy/32/5436_2.png) [@GRoy](https://community.cartalk.com/u/GRoy)\ **Post date:** [June 26, 2010, 8:51pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/1 "2010-06-26T20:51:58Z")
when I lock the doors none of the lights flash and the horn doesn’t beep when I push the remote twice. The alarm goes of occaisionally also. I have made sure that all of the doors are locked and everything is closed up. what is going on. By the way when I unlock the doors remotely everything works fine. ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [June 26, 2010, 9:28pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/2 "2010-06-26T21:28:16Z")
Ask Your Friendly Hyundai Service People To Look Up A September, 2009 Technical Service Bulletin (TSB) #09-BE-026 And See If This Bulletin Pertains To Your Problem. I Can’t Tell What Model-Years It Covers. I don’t understand the operation of your remote, but from what it sounds like the response you’re getting is a response one would get if a door was ajar or something. How about your hood ? Anyway this TSB addresses a problem with some Genesis, Tiburon, Sonata, Tucson, Entourage, and Elantra models concerning the vehicle alarm system intermittently sounding. The problem is caused by a too short hood switch pad (a tiny little black rubber piece on the uderside of the driver’s side edge of the front hood). It must have to depress a switch when the hood is closed, but it’s too short. A new longer (by +2.5 mm) “pad” part #92736-3A000 replaces the old one. This might fix your system because they say after it’s installed to press your lock button and verify that the doors lock and the hazards flash once and press it twice to hear it answer back. I would try opening the hood when your having the problem and locate and hold down that switch with my finger while I tried the remote. If it works, well there you go. There’s a chance that the service and parts people at the dealership know about this without even looking it up and know what part you need. It sounds common. Does this sound right ? Let us know what happens. CSA ---
**Author:** ![JoeMario](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@JoeMario](https://community.cartalk.com/u/JoeMario)\ **Post date:** [June 26, 2010, 9:50pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/3 "2010-06-26T21:50:57Z")
I had this same problem happen in my 2004 Hyundai Sonata. In my case, it turned out to be a relay. The relay is located under the dash (in a place where you will skin your hands getting it out and in). It cost about $11.00 from a dealer. There is one relay for locking the doors and another (identical) relay for unlocking the doors. You could swap the “lock” and “unlock” relays. If the car now successfully locks, but doesn’t unlock, you’ve hit the problem. ---
**Author:** ![wentwest](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/wentwest/32/6073_2.png) [@wentwest](https://community.cartalk.com/u/wentwest)\ **Post date:** [June 27, 2010, 5:17am UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/4 "2010-06-27T05:17:12Z")
Isn’t this car still under warranty? ---
**Author:** ![GRoy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/groy/32/5436_2.png) [@GRoy](https://community.cartalk.com/u/GRoy)\ **Post date:** [June 28, 2010, 12:31pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/5 "2010-06-28T12:31:54Z")
Not the end to end warranty. The 100K warranty only covers the drive train. ---
**Author:** ![GRoy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/groy/32/5436_2.png) [@GRoy](https://community.cartalk.com/u/GRoy)\ **Post date:** [June 29, 2010, 10:55am UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/6 "2010-06-29T10:55:28Z")
CSA: You are 100% correct. When I push down on the front center of the hood everything works the way it should. I cannot, however, locate the sensor or the pad. Do you know where it is? ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [June 29, 2010, 11:47am UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/7 "2010-06-29T11:47:28Z")
From What I Can Ascertain, I’d Look For . . . . . . a tiny little black rubber piece on the underside of the hood on the driver’s side. Look near the edge of the hood on that side, somewhere between the front of the hood and back of the hood. That rubber piece contacts and depresses a switch attached to the car body below it when the hood is closed. CSA ---
**Author:** ![GRoy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/groy/32/5436_2.png) [@GRoy](https://community.cartalk.com/u/GRoy)\ **Post date:** [June 30, 2010, 10:06am UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/8 "2010-06-30T10:06:43Z")
After deal of searching on the driver’s side of the hood, I found the rubber piece on the passenger side of the hood. I placed a bit of tape on the rubber bumper and closed the hood. Everything works fine. I’m going to order the part today. Thanks for your assistance. By the way even the TSB indicates that the bumper is on the drivers side. I’ve attached a copy. ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [June 30, 2010, 11:58am UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/9 "2010-06-30T11:58:55Z")
You’re Welcome. You Can See Where I Got The Reversed Location Information. Anyhow, After A Minor Setback, I’m Glad It Worked Out For You. As a former Automotive Parts Department Manager (somewhere in my ancient history) I would think that many Subaru dealers (probably larger dealers) would have several of these parts in stock, but it sounds like the tape idea has you covered until the correct part is obtained. CSA ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [June 30, 2010, 2:56pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/10 "2010-06-30T14:56:32Z")
“I would think that many Subaru dealers (probably larger dealers) would have several of these parts in stock” Since the car in question is a Hyundai, wouldn’t the OP be better-off using Hyundai parts? ;-)) ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [June 30, 2010, 3:08pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/11 "2010-06-30T15:08:52Z")
Very good call on the trouble CSA. You knocked it out of the park on the first swing. ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [June 30, 2010, 3:14pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/12 "2010-06-30T15:14:23Z")
Oops! VDCD, I Should Have Known You’d Catch My Faux Pas. It Doesn’t Excuse My Ignorance, But I Don’t Know A Hyundai From A Subaru. I Never See Any Of Either One Unless I Glimpse Them Passing Through. I will correct my statement to say, " . . . I would think that many Hyundai dealers (probably larger dealers) would have several of these parts in stock . . . ." Thanks, CSA ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [June 30, 2010, 3:20pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/13 "2010-06-30T15:20:47Z")
Cougar, Thank You Sir. Not Bad Considering That It Looks Like I Don’t Know A Hyundai From A Subaru, Eh ? Even a Blind Squirrel Finds An Acorn Once In While ! CSA ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [June 30, 2010, 3:48pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/14 "2010-06-30T15:48:39Z")
CSA I hope you realize that I was just having some fun with you. Your technical knowledge and advice are among the best in this forum! VDC ---
**Author:** ![common-sense-answer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/common-sense-answer/32/716_2.png) [@common-sense-answer](https://community.cartalk.com/u/common-sense-answer)\ **Post date:** [June 30, 2010, 4:36pm UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/15 "2010-06-30T16:36:51Z")
VDCD, Regarding Your First Sentence, Yes, Of Course I Realized That. Regarding The Second Sentence, I’m Not So Sure, But Appreciate The Compliment. 😉 CSA ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [July 1, 2010, 4:12am UTC](https://community.cartalk.com/t/remote-door-locks-and-alarm-on-a-2007-sonata/50926/16 "2010-07-01T04:12:05Z")
I’m not buying that blind squirrel line CSA. You, and a number of others here always have good advice for posters here.