20 Most Recent 2000 Buick LeSabre - Page 2 Questions & Answers


Check the level switch at the back of the car - this turns the compressor on and off as the ride height changes. It may have come loose, is stuck or faulty.

2000 Buick... | Answered on Oct 22, 2017


Had this problem once. Sticky buttons. Just spray them with water and keep spraying till they come unstuck. Then take some card stock and make little 'tongue depressors - popsicle sticks' and use them to wipe out the surrounding areas of the buttons when they come loose. Seems like someone spilled pop on the dash and it dried. The sugar in the pop has stuck your buttons and they move like 'molasses in january' in Canada!!!

2000 Buick... | Answered on Sep 29, 2017


Give it liberal soaking of WD 40 and wait about an hour -get good tight wrench and turn counter clockwise.

2000 Buick... | Answered on Sep 01, 2017


The first thing the dealer would do is diagnostic's . Would not guess and just replace the BCM . Hooking up the factory Tech 2 scan tool an checking for DTC'S - diagnostic trouble codes , input data to the BCM etc.
(I have reason to believe the BCM in my 2000 LeSabre is bad ???? )you have no clue ! The BCM has nothing to do with gauges , insturment cluster ! Beside's you still would need to take it to the dealer because it would need to be programmed .
Leave this to a qualified repair shop . Plus the dash doesn't need to be taken apart to replace the BCM . Your vehicle actually has three modules for the body control system .
The body control system consists of 3 modules:
• The dash integration module (DIM)
• The instrument panel module (IPM)
• The rear integration module (RIM)
You have no idea what your messing with . Your best bet ,take it to a qualified repair shop ,and that doesn't always mean you need to take it to the dealer .
Each of the 3 body control modules integrate a number of functional systems under the control of a single module. Each of the modules is connected to the Class 2 serial data line. Many control signals are implemented by Class 2 messages.
Important: The air bag indicator light may remain ON after the DIM module is replaced, and during the programming procedure for the DIM, until after the procedure is completed and the ignition key is cycled OFF and ON .
• Before replacement, record the personalization settings to transfer to the new module (if they are available).
• After replacement of the DIM, perform the following procedure.
• In order to reprogram the DIM, perform the following procedure.
Using a scan tool, preform the New VIN Procedure.
Perform the Setup SDM Serial Number in DIM Procedure.
Using the scan tool, set the Point of Sale in the DIM module to the correct country.
Using the scan tool, configure the RPO option configuration.
Perform the vehicle personalization in order to reset the owner's desired personalization settings. Refer to Instrument Cluster, Gauges and Console.
Plus power door locks and windows are controlled by door module system , not body control system .The vehicle is equipped with power door locks. Each lock actuator is powered and controlled by the door module mounted in the individual door. The driver door module (DDM) is the master control for the door lock system but the rear integration module (RIM) contains the program that determines when the lock functions are permitted.
Mess with the wrong stuff an you will render your vehicle useless
cost to much to fix.

2000 Buick... | Answered on Aug 18, 2017


problem with blend door either stuck or linkage problem

2000 Buick... | Answered on Jul 12, 2017


You need to have the security system scanned when this problem is occurring, it could be a door ajar switch that is defective.

2000 Buick... | Answered on Jul 09, 2017


good chance theres a vacuum line unplugged under the hood someplace. defrost is the default usuallly

2000 Buick... | Answered on Jun 22, 2017


The mode door actuator is not switching. Most of the time it's the actuator that has went bad.

2000 Buick... | Answered on Jun 21, 2017


It sounds like your AC compressor bearings may be overheating causing excessive drag/loading on the engine. No easy way to check this unless you can take the serpentine belt off when the car won't start and see if it is really hard to turn the compressor shaft.

2000 Buick... | Answered on Jun 17, 2017


Most likely, the clicking noise is a c/v joint. Probably the left c/v joint.

2000 Buick... | Answered on Jun 16, 2017


Sounds like the vacuum modulator on the side of the transmission or the vacuum hose going to the unit. I'm not sure if buick Is fed off of the carburetor vacuum or there's a vacuum tree on the rear of the engine block that may feed it as well. Typically if there is a vacuum leak to the modulator, your engine power will be decreased and your engine will be running rough.

2000 Buick... | Answered on Jun 07, 2017


When you turn the key on the instrument cluster has no lights come on ? The head lamps don't work ? plug 2 and 5 where not firing and was told to reset computer by disconnecting Battery.If 2 & 5 are the only ones not firing ,disconnecting the battery isn't going to change that . The ignition module has burnt out transistor . If there was B+ voltage before you disconnected the battery you have a bad connection . Check your connections , cables ! Unless you shorted something . Do you know how to do automotive electrical testing using a voltmeter and a electrical power distribution diagrams ? This video on diagnosing coil drivers ( transistors ) is on a saturn 2.2 4 cylinder , doesn't matter testing the transistor is the same for your vehicle .
2004 Saturn Ion 2 2 Misfire Case Study P0300 you look at some other ones . Here watch this one too .

GM Ignition System diagnosis 1988 Olds Cutlass
Voltage Drop Test


2000 Buick... | Answered on Jun 06, 2017


If all you did was what you described then I would go and recheck the fuses to be sure they are all in the right place. It is easy to off set a fuse due to the close quarters they are in the fuse box.

2000 Buick... | Answered on May 27, 2017


Check the actuator motors on the heater, there is two one for passenger and one for driver side. They allow the air to be directed from the heater or ac.

2000 Buick... | Answered on May 06, 2017

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