Top 10 2006 Buick LaCrosse Questions & Answers

Added power steering fluid

Transmitter ProgrammingImportant: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle.

1. Install a scan tool.
2. Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs.
3. Press the START soft key on the scan tool. Important: The scan tool must stay connected until all of the transmitters are programmed.
   
4. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
5. Repeat the previous step in order to program up to 4 transmitters.
6. Remove the scan tool.
7. Operate the transmitter functions in order to verify correct system operation.

P0411 Secondary Air Injection System Incorrect Flow Detected
p0411 is a generic code, probably a vacume leak,vacume hose broken check this first, check the air pump turn on the car but it needs to be cold, you should hear a high pitched whine, this is the air pump running,there are 2 hoses one suction one blowing thishose should be going from the air pump to the air cleaner disconnect that and see what the volume is should be pretty strong.
But mostly you probably have a broken vacume line somewhere

Asuming you mean taillight/turnsignal, and not highmounted brake light:
1.open the trunk
2.Remove 4 wingnuts on trunk trim (there are two on each side)
You can do it by only removing 2 on one side, but it makes a nicer job,
3.Pull back the trunk "trim" the carpeted cardboard
4.Remove 2 wingnuts which hold the taillight assembly in place
Pull out the taillight assembly; you might want to remove (i.e. unattach or unplug) the wiring harness
5.Turn the particular bulb's socket (there's 5 back there: 2 tail, 1 back up, 1 side marker, 1 brake/turn) counterclockwise, and it removes from the assembly, holding the bulb.
6. Pull out bulb and replace.
6. Reverse steps to reassemble.

Hi, I recommend you replace the low beam relay in the box under the hood. Relay #35 as marked below.

Hello! Do you hear a click when the key is turned?...If no click is heard either the ignition key, the Crank relay, the starter, or the battery are suspect...Having lights and radio does not mean the battery is capable of running a starter motor......Put a meter on the battery...should read 12.5 volts...Turn key...Does voltage drop to 8 or 9 volts? Bad battery...If all is well with battery and connections to it...Check the starter fuse # 33 in the under hood fuse/relay box...If the fuse is good that click you should hear is from the Crank Relay in that box...If all of the above is OK connect your meter to the Purple wire that is connected to the starter motor...When the key is turned 12 volts must be on that wire...If there is the starter motor is defective...So, #1...Do you hear a click when key is turned...That would point at a bad starter or weak battery...#2...If you do not hear a click bad fuse #33, bad Crank Relay, bad ignition switch...#3...If fuse is good Bad Crank Relay or Ignition switch; Crank Relay is a low cost item ($10)...Replace Relay...Stop there and send a comment as to results...Guru...saailer

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The BCM is located under the dash behind the instrument panel on the left (drivers) side of the vehicle. In the first picture below I have marked its location but keep in mind that this picture is a view from the front of the vehicle. You will need to remove the lower cover under the dash as well as the panel right under the steering wheel (see next picture). The final picture is how it looks after you remove the covers. Hope this helps...

It's on the drivers side, Standing in front looking at the engine it is on the lower right corner, facing the engine/transmission.

Your Buick has a heater core o heat the air sent from the air conditioning unit before it is blown outwards. A malfunctioning heater core may cause the coolant to leak on the inside of the car, or It may even lead to smoke blowing out from the air vents.
Replacing the heater core will solve the problem, and to do so, you require a socket wrench and a Philips head screwdriver. Thi process is straight forward, but it may take up to an hour to finish
1. Pop open the hood, lift it, and then disconnect the bettery by using a socket wrench
2. On the passenger side, unwind the four screws from the kick panel which is underneath the glove box
3. Disconnect and remove the kick panel
4. Open the glove box, remove all contents within, and then unmounts the whole glove box by removing the screws
5. Pull down the flange, and you can access the heater core. To open it up - remove the two bolts from heater core cover and lift it off
6. Disconnect the core's wiring harness, then remove the four screws that are holding it in by using a Philips head screwdriver. Now you can easily remove the lousy heater core
7. Install the new heater core, then - reconnect wiring, screws, heater core case, and finally, the bolts
8. Reattach the kick panel and then glove box, and you are done

How difficult is it to access the control valve? I didn't find it under the hood so I am assuming it will be under the dash. The fan is working good, and the car is coming up to temperature beautiful.