Keyless Entry

Scubaboy · January 29, 2005

to all,

I have a 2004 Yukon that has exhibited this odd behavior noted below since the day I purchased the Yukon. It should be noted that the issue is intermittent and that I have taken the Yukon for service without results. Any ideas are appreciated as I have no idea what I am up against.

The 2004 Yukon obviously has a keyless entry and comes with (2) FOBS. Both FOBS have a number on the back, (1) and (2). The 2004 Yukon has the ability to store (2) memory presets for driver preference, i.e seat position, pedal position, seat exit position, etc...

To recall the desired position one simply uses their FOB and unlocks the door which will recall the desired selections for the driver OR one enters the vehicle and press the (1) or (2) button to recall the desired position. This leads me to the problem...

Intermittently the desired preset positions will not work from the FOB or the button. For example, when depressing the unlock button the driver seat position will not adjust. Once entering the vehicle, depressing the (1) button will not do anything; in addition none of the other desired presets work.

I am hesitant to bring the Yukon in again as they were unable to identify the problem and it is intermittent. Obviously this isn’t a critical problem and is more bothersome as I can’t identify the root cause. Any insight would be appreciated.

Thanks

scubaboy

Bgdsub72 · January 29, 2005

never heard of that one before, may be try messing with the settings in the DIC...

71GMC_3/4T · January 30, 2005

Yep, I'd try the DIC too. There's a setting to enable or disable the seat position recall, for each driver. Maybe one is on and the other is off?

mhraracing · January 30, 2005

My father in law had the same sort of problem on his 05 Tahoe - after the dealer figured out the the 05's dont change with the key fobs anymore - the buttons on the doors wouldnt change the pedals - the dealer changed a faulty 'brake' sensor ??? - and now it works ??

Maybe GM Tech has a thought ??

Scubaboy · February 3, 2005

Hey guys... I had posted this question on another forum and received this answer.

There are two documents regarding memory seats issues. Neither one fits your described issue but read them, it may help.

Document ID #1546007

Advance Service Info - Memory Seat May Not Return to Requested Position (No Fix Availabe at this Time, Fix Under Development) #04-08-50-016 - (Aug 19, 2004)

Memory Seat May Not Return to Requested Position (No Fix Available at this time, Fix Under Development)

2003-2004 Cadillac Escalade, Escalade ESV, Escalade EXT

2003-2004 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2003-2004 GMC Sierra, Yukon, Yukon XL, Yukon Denali

All with Seat FRT, Individual (Non BKT) (RPO AN3)

2003-2004 HUMMER H2 with Seat, Front Bucket Deluxe (RPO AR9)

No repair is available at this time for the above condition. Do Not Attempt any corrective action on these vehicles for this condition at this time.

Condition

Some customers may comment that with repeated cycling of the memory seat between the 'exit' and one of the 'presets', the position of the seat may "creep" forward or rearward out of expected adjustment.

Cause

There is a coding deficiency in the software for the memory seat module.

Correction

No repair is available at this time. This is a recognized issue and engineering is working to revise the software to correct this condition. DO NOT replace the memory seat module. Replacing the module will not correct the condition.

Document ID #1546261

Adm Msg - 2004, 2005 Full Size Pickup and Sport Utility Vehicles Power Seat Will Not Retain Preset Memory Position #VSS20040231 - (Aug 23, 2004)

2004, 2005 Full Size Pickup and Sport Utility Vehicles Power Seat Will Not Retain Preset Memory Position

This message is in follow-up to GM Messenger number VSS20040205 pertaining to the full size trucks memory seat module. Due to numerous dealer inquiries, I need to inform you that the revised module to correct the seat creep condition, that is that the preset memory position changes gradually over time, will not be available until the year end timeframe. Do not replace the module in the meantime for this condition as the current module will not correct it.

However, a different condition is currently being reported. If you encounter a vehicle where the preset seat position changes significantly, as opposed to gradually, on a random basis, please capture and report the following information using the field product reporting procedure.

Yukon04 · February 3, 2005

Scubaboy,

The TSB you posted in not your problem. They way you described your issue, you indicated that the seat will not move at all nor any other component tied to the memory function. Your included TSB describes a known issue with the module that causes the memory module to return the seat to an "undesired" position. We are working on the fix for that...Sounds like you may either have:

a) A faulty seat memory module which operates intermittently.

b) A bad connection to the memory module intermittently falling "in and out" causing the appearance that your memory module is faulty.

c) Improper usage from the operator.

I assume that option © is not the problem, but just in case, read up on how the system works in the owners manual. If your sure that you can read correctly, then (b) look under the driver's seat and see if you can make sure that all of the connections are made/completely seated. (a) If all connections are good, then take it to your dealer and have them replace the memory module.

Just kidding on the reading correctly thing, I am feeling "smart" today....

distra · February 10, 2005

I have experienced the same problem with my '04 Sierra SLT Crew Cab. The seat inched up over a day or so then totally failed to move when I used either remote. I ended up resetting the seat position and easy exit positions and it has been fine for the last month.