I have 1999 Mercury Grand Marquis, there is a problem with the security system, had to get a key reprogrammed twice, and the second time it did not work, is there a way around the security system, car is on last legs not looking for major repair

Asked by Jul 07, 2016 at 11:29 AM about the 1999 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

Security system has a problem, the car won't acknowledge the key we
have, so we had a locksmith reprogram the key, that worked for about 2
days. Then the problem happened again, we called a locksmith again he
said there was a problem with the system and that a ford specialist should
look at it. The car is on its last legs, I just want to keep the car running until
I can afford new car, is there a way to bypass the security system in a way
that we wont keep running into this problem

2 Answers

13,035

Ford EECIV computer system no by-pass. Confirm with the locksmith that he did NOT just "clone" a key which is just a RFID copy of the key you had, and that he did ENTER a NEW key CODE in the EECIV computer, which is the correct method, a cloned key should NOT cost more than $60

1 of 1 people found this helpful.

Okay, I will have to give them a call once I get out of work to see if he did enter a new code rather than clone the key, if he did enter a new key code, and this problem did reoccur, could the driver side door not locking properly or being open from the inside cause the car to go into a security safety mode?

Your Answer

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,730
  • #2
    kbro
    Reputation
    2,130
  • #3
    Js08016
    Reputation
    1,870
View All

Related Models For Sale

Used Lincoln Town Car
31 Great Deals out of 1,779 listings starting at $1,500
Used Ford Crown Victoria
6 Great Deals out of 1,175 listings starting at $1,496
Used Chevrolet Impala
509 Great Deals out of 34,087 listings starting at $950
Used Ford F-150
2,274 Great Deals out of 183,833 listings starting at $699
Used Chevrolet Tahoe
669 Great Deals out of 39,483 listings starting at $1,000
Used Ford Mustang
669 Great Deals out of 37,869 listings starting at $895
Used Ford Taurus
247 Great Deals out of 16,389 listings starting at $1,850
Used Honda Accord
1,073 Great Deals out of 61,293 listings starting at $1,099
Used Toyota Camry
1,033 Great Deals out of 73,127 listings starting at $295
Used Chevrolet Camaro
400 Great Deals out of 30,708 listings starting at $3,550

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
22 listings starting at $5,450
2010 Mercury Grand Marquis For Sale
5 Great Deals out of 99 listings starting at $2,990
2009 Mercury Grand Marquis For Sale
7 Great Deals out of 87 listings starting at $2,950
2008 Mercury Grand Marquis For Sale
11 Great Deals out of 159 listings starting at $2,995
2007 Mercury Grand Marquis For Sale
5 Great Deals out of 114 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.