Cadillac

Cadillac Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Cadillac
This answer was rated:

1996 sts: anti theft mode and will not start what can I do

my 1996 sts seville goes...
my 1996 sts seville goes into the anti theft mode and will not start what can I do
Show More
Show Less
Ask Your Own Cadillac Question
Answered in 3 minutes by:
10/19/2009
john -aka eauto
john -aka eauto, The Car Guy
Category: Cadillac
Satisfied Customers: 16,534
Experience: 15 years as a auto tech
Verified

Ok its stuck in security mode

OK, there may be an issue with the security system, but lets try a relearn procedure. It is posted below. Try it an let me know what happens.

30-Minute Relearn Procedure

 

 

 

 

 

Use this procedure after replacing any of the following components:

The PASS-Key III plus keys
The theft deterrent module (TDM)
The powertrain control module (PCM)
This procedure is not available on vehicles equipped with EXPORT configured TDMs.
When performing the 30-minute relearn procedure, all previously learned keys will be erased from the TDM memory. Additional keys may be learned after performing the relearn procedure.
When replacing a TDM with a GM SPO Replacement Part, ensure the procedure to setup a new TDM is performed prior to the 30-Minute Relearn Procedure.
  1. With a master vehicle key, turn ON the ignition, with the engine OFF.
  2. Observe the security indicator. After approximately 10 minutes, the telltale will turn OFF.
  3. Turn OFF the ignition, and wait 5 seconds.
  4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.

    Important: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to RUN. You must turn the ignition OFF before attempting to start the vehicle.

  5. With a master vehicle key, start the vehicle. The vehicle has now learned the key transponder information and/or the ECM has now learned the fuel continue password.
  6. If additional keys are required to be learned, continue to step 7.
  7. With a previously learned master key, turn ON the ignition, with the engine OFF.
  8. Turn OFF the ignition and remove the key.
  9. Within 10 seconds insert the key to be learned. Turn ON the ignition with the engine OFF. The vehicle has now learned the new key.



john -aka eauto
john -aka eauto, The Car Guy
Category: Cadillac
Satisfied Customers: 16,534
Experience: 15 years as a auto tech
Verified
john -aka eauto and 87 other Cadillac Specialists are ready to help you
Ask your own question now
Customer reply replied 8 years ago
Thank you very much you save me alot money and headace sts seville has started again. my battery had went dead first thing this mornin i jump it off and reapplied what you had told me to do. and 1:30 10 -20- 2009 it works. thank again i am very pleased with you help. will recommend others to you and this site. after I did that process and let the car set for a couple of hrs it was good to go.

Great!!!!!!!!!!!!!!!!!!!!Cool

Ask Your Own Cadillac Question
Customer reply replied 8 years ago
Hello john Aka eauto you help me out on the 1996 sts seville now it laped back to the same mode again I am so mad at this car, I don't know what to do. it does has 162000 miles on it what else to do. (anti security mode will not start what do you sugget
Most likley the ignition key switch or ignition key is faulty ....I would start by trying a different key if not it will most likley require key switch replacement
Ask Your Own Cadillac Question
Ask john -aka eauto Your Own Question
john -aka eauto
john -aka eauto
john -aka eauto, The Car Guy
Category: Cadillac
Satisfied Customers: 16,534
16,534 Satisfied Customers
Experience: 15 years as a auto tech

john -aka eauto is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Jerry Newton

Jerry Newton

Cadillac Technician

1,569 satisfied customers

ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.

Dave Nova

Dave Nova

Cadillac Technician

1,522 satisfied customers

ASE Master Certification. GM World Class Certification

Gm Tech (Cam)

Gm Tech (Cam)

Cadillac Mechanic

1,001 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

John

John

ASE Certified Technician

941 satisfied customers

ASE CERTIFICATIONS A1-A8 & L1 / 40 YEARS AUTOMOTIVE EXPERIENCE

George H.

George H.

ASE Certified Technician

774 satisfied customers

ASE Master Tech 15+ Years

Chris (aka- Moose)

Chris (aka- Moose)

Cadillac Technician

734 satisfied customers

16 years of experience

Don - Mo Lurch

Don - Mo Lurch

Cadillac Technician

688 satisfied customers

GM, Cadillac Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

< Previous | Next >

Related Cadillac Questions
I don't know my service engine light is on, so I checked to
I don't know my service engine light is on, so I checked to see if it read any codes … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
My temperature gauge reads 0 all the time and it says engine
my temperature gauge reads 0 all the time and it says engine hot ac off as soon as i start the car 2008 cts … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
I'm having the hardest time finding out where the engine
I'm having the hardest time finding out where the engine coolant drain plugs are on a 2008 Cadillac CTS with the 3.6 L engine … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,879 satisfied customers
Theft light on,service stability system,an check engine
Theft light on,service stability system,an check engine light,an when car off sometimes shift to park light appears. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Cadillac Technician
Vocational, Technical or Trade School
734 satisfied customers
A knocking noise on the driver side of the engine. For a
a knocking noise on the driver side of the engine JA: Where exactly do you think the noise is coming from? And how long has this been going on? Customer: for a month sounds like in the bottom the engi… read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
Check engine light, Onstar states that the alarm pertains to
Check engine light, Onstar states that the alarm pertains to gas cap leaking or not using proper gasoline. Anther problem developed at the same time, Car hard to start after adding gasoline to the gas… read more
Michael Solis
Michael Solis
238 satisfied customers
The engine light is on and code is P219A. The code is P219A
I change the air filter and spark plugs and wires and added a fuel system cleaner … read more
ggrote1
ggrote1
Vocational, Technical or Trade Scho
13 satisfied customers
I have a 2004 cadillac deville, northstar engine with
I have a 2004 cadillac deville, northstar engine with 110,000 miles.as i was driving approx 30 mph the engine started to vibrate badly and the check engine began to flash. i also had dark grey smoke c… read more
Jerry Newton
Jerry Newton
Cadillac Technician
Vocational, Technical or Trade Scho
1,569 satisfied customers
There have been no engine crank after several cycles to
There have been no engine crank after several cycles to reset switch. Dashboard reads traction disabled gear indicated false...… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
This morning it began overheating and I get a P1258 engine
This morning it began overheating and I get a P1258 engine code. There is no loss of coolant. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
3,996 satisfied customers
I have disconncted the battery totally and leave the engine
I have disconncted the battery totally and leave the engine bay open under the sun for all day , I hope that can be helpful to dry the water hidden in the wire clusters. I don't think that I had trigg… read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
Well, the check engine light came on and I noticed that the
Well, the check engine light came on and I noticed that the remote start circuit will not work. Something else is I hooked up my ck/eng code reader and it will not come on. I tried it on my pick-up an… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
Where is the Engine temperature sender located? Coolant
Coolant Level is good. Mileage: 57000 Car parked all night, Display Center Message indicates engine is over temperature … read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
2 satisfied customers
I have a 1999 eldorado with the northstar engine that keeps
I have a 1999 eldorado with the northstar engine that keeps sending an oil alarm when it is only half a quqrt low on oil. the engine runs quiet, cool, and smooth. What gives? Is it something only deep… read more
roy
roy
Associate Degree
3 satisfied customers
The engine will not turn over, the checkengine light just.
the engine will not turn over, the checkengine light just blanks … read more
Marvin the Mechanic
Marvin the Mechanic
82 satisfied customers
The dash is showing "Reduced engine power" and the check
The dash is showing "Reduced engine power" and the check engine light is on … read more
nelson freitas
nelson freitas
Automotive Technician
Vocational, Technical or Trade School
77 satisfied customers
I have a '86 Cadillac Cimarron 2.8 engine. Engine cranks and
I have a '86 Cadillac Cimarron 2.8 engine. Engine cranks and has a hard time starting. After it starts it idles rough and there is a bit of lost power. … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
0 satisfied customers
2008 CTS. engine light comes on, then service TCS. engine
2008 CTS. engine light comes on, then service TCS. engine power is reduced. Will not allow the cruise control to work. limits carburetor and there has been times when it will keep the car from getting… read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
44 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x