2008 Buick Lucerne new programmed PCM won't let me program my key!

Asked by DelaneyElise Mar 06, 2019 at 06:45 PM about the 2008 Buick Lucerne CXL FWD

Question type: Maintenance & Repair

I have a 2008 Buick Lucerne CXL and I just replaced the PCM. My car stalled while driving on a busy highway 5 minutes after starting the vehicle. The car wouldn't restart and so I had it towed home. It threw a P0520 code. I changed both the Oil Pressure Sensor and the Crankshaft Position Sensor and nothing happened. The car would turn over, but not start. I was told by several people that the PCM needed to be replaced so I bought a used PCM from ebay and the seller took my VIN and programmed the PCM for my vehicle. I installed it on my car today and now I cant get my key to program to the new PCM even after following the directions they sent to me to follow. When the key is turned to the ON position, the check engine light comes on and stays on while the key is in. The security light comes on and then turns back off a few seconds later. The directions mentioned that this light should stay on the whole time the key is in for the "key Program" procedure. I'm also hearing a clicking noise from somewhere in the dash while the key is in the ON position. I did get the door locks to pop and the horn to honk the very last time I tried the "key program" procedure. Currently the battery is completely dead from so many tries. I'm going to get a battery charger tomorrow to charge back up. Any help is appreciated!

1 Answer

220

I have a 2008 Buick Lucerne CSL 3.8 engine a mechanic put a used ignition with a key and it from a Chevy Impala with the ignition work in my Buick Lucerne

3 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    DrakeTJ
    Reputation
    1,500
  • #2
    jeffsbuick
    Reputation
    1,330
  • #3
    Guru9ZBLD
    Reputation
    1,110
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Buick LaCrosse
4 Great Deals out of 35 listings starting at $4,620
Used Chevrolet Impala
12 Great Deals out of 112 listings starting at $3,531
Used Toyota Avalon
25 listings starting at $5,388
Used Toyota Camry
53 Great Deals out of 957 listings starting at $2,212
Used Buick Enclave
14 Great Deals out of 605 listings starting at $5,999
Used Chevrolet Malibu
43 Great Deals out of 1,148 listings starting at $1,495
Used Honda Accord
37 Great Deals out of 905 listings starting at $2,799
Used Chrysler 300
43 Great Deals out of 510 listings starting at $4,754
Used Ford Taurus
7 Great Deals out of 83 listings starting at $4,880
Used Cadillac CTS
4 Great Deals out of 50 listings starting at $5,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.