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I have an 03 Buick Rendezvous. The automatic lights never turn off until the car is turned off, chimes when left turn signal is on and a/c won't turn on? How do I fix this?

I am wondering if I should replace the computer. I've already replaced the ambient light sensor and there was no change. Checked the relay's and fuses, wiring, all of that looked great. With the exception of just ripping parts off, I don't know where to start to fix it. I'm going on a trip in 6 weeks and my car has got to be in good shape by then. So any help is very greatly appreciated, thanks!

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  • Cars & Trucks Master
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DTC B2577
The body control module (BCM) controls the headlamp relay by grounding the control circuit of the headlamp.
Diagnostic Aids
• If the DTC B2577 is a history DTC, the fault may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
• An intermittent short to ground or an open in the following locations may cause an intermittent malfunction to occur:
- The low beam headlamp relay control circuit
- The headlamp relay control circuit
- The headlamp relay
- The BCM

- The BCM
Step
Action
Yes
No
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics
Connector End View Reference: Master Electrical Component List
1
Did you perform the Diagnostic System Check?
YES - Go to Step 2
NO - Go to Diagnostic System Check - Lighting Systems
2
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool, command the HDLP low beam relay ON and OFF.
Does the HDLP low-beam relay turn ON and OFF with each command?
YES - Go to Diagnostic Aids
NO - Go to Step 3
3
Turn OFF the ignition.
Disconnect the HDLP low beam relay.
Turn ON the ignition, with the engine OFF.
Probe the coil side supply circuit of the HDLP Low-beam relay with a test lamp that is connected to a good ground.
Does the test lamp illuminate?
YES - Go to Step 4
NO - Go to Step 10
DTC B2578
DTC B2603
The body control module (BCM) controls the DRL relay by grounding the control circuit of the DRL relay coil.

DTC B2645
The body control module (BCM) uses the ambient light sensor signal in order to control the daytime running lamp system. The ambient light sensor is connected to the BCM through the signal circuit and the reference circuit of the ambient light sensor.
DTC B2647
--------------------------------------------------------------------------------
DTC B2648
DTC B2665
The headlamp switch provides a direct ground input into the body control module (BCM) for the headlamp switch input when the switch is activated. This input is used by the BCM in order to control the headlamps when the headlamp switch is in the HEAD position.
DTC B3857
The body control module (BCM) monitors the high beam headlamp signal circuit by verifying the high beam input.

Rather then going at this blindly an just replacing parts take it to a qualified repair .

Posted on Apr 30, 2017

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How do I program the keyless remote on a 2006 Buick LaCrosse


2006 Buick Rendezvous Remote Programming For Buick Rendezvous / Intrigue / AztekObtain all remote transmitters for this vehicle.
1. Close all doors.
2. Press and hold the Unlock button on door lock switch on drivers door.
Hold until instructed to release in step 6.
3. Insert key into the ignition cylinder but do not turn it.
4. Remove key from ignition and then insert key into ignition without turning ignition cylinder and remove key.
5. Insert key in ignition a third time and leave key in ignition. Do Not turn ignition.
6. Release door lock switch on drivers door panel. A Chime will sound 3 times indicating that you are in programming mode.
7. Press both the Lock and Unlock buttons on the remote up to 30 seconds.
A chime will sound 2 times if remote has programmed successful.
8. Repeat step 7 if you are programming additional remotes.
9. Remove key from ignition to exit programming mode

Oct 28, 2017 | Buick Cars & Trucks

1 Answer

Change oil light on


depending on if your buick has the DIC option, it could be 1 of 2 ways.

  1. Turn key to accessory (key on , engine off)
  2. depress mode button on the DIC display til you see "oil life left/hold to reset
  3. Hold set button down till it says 100%
  4. listen for 3 chimes
  5. start car and see if its reset, if not, it wasn't reset, repeat steps 1-4.
If you don't have the DIC option, then:
  1. Turn key to the "key on, engine off" position
  2. Depress gas pedal to floor slowly 3 times, make sure you get the 3 presses to the floor within 5 seconds.
  3. turn key off.
  4. see if the light goes off.. if not, repeat the steps 1-3

Dec 08, 2013 | 2003 Buick Rendezvous

1 Answer

How do i reset the low tire pressure light on a 2003 buick rendenvous


  • Follow these steps
  1. Turn the vehicle off while holding the mode button on the information center until it says "Low Tire Pressure Press To Reset"
  2. Then press and hold the "set" button until the chimes go off and you see "Tire Pressure Reset."
  3. The chimes should then sound three times and "Tire Pressure Normal" will display.
  4. That's it.
  • Do this only AFTER you fill the tire so it will recognize the level as being low compared to the pressure after you filled the tire.

regards, Tony

May 17, 2011 | 2003 Buick Rendezvous

1 Answer

1. How do i reset the 'change oil light'? 2. Do this car take a tune-up?


It depends on whether you have the optional Driver Information Center or not.

If not, turn the key to the "ON" position, without starting the engine. Press the accelerator pedal to the floor and release three (3) times within five (5) seconds, then turn the key OFF. If the oil change light comes back on when you start the engine, it did not reset, and you will have to try again.

If you have the optional Driver Information Center (DIC), turn the key to the "ON" position, without starting the engine, Press the MODE button on the DIC until it reads "OIL LIFE LEFT/HOLD SET TO RESET", then press and hold the SET button until 100% is is shown. You will hear three (3) chimes, and the "CHANGE ENGINE OIL" light will go off. Turn the key to "OFF".

That's it.

And yes, every car with spark plugs, filters, etc. "takes" a tune-up.

May 09, 2011 | 2006 Buick Rendezvous

2 Answers

My inlaws' 2004 buick rendezvouz: the dash lights don't come on. Dealer says no dash lights were installed on that model. Chris


The dealer is blowing smoke up your tailpipe. I couldn't find a manual for the '04, but the '03 and '05 have identical controls for the dash lights, so it's a very good bet the the '04 is the same. Here's a link to the manual for the '05 -- you will find the dash light control on page 3-16.

http://www.extendedgmwarranty.com/owners-manual/buick/2005-Buick-Rendezvous.pdf

P.S. You might want to print the page and confront the dealer with it . . .

Mar 27, 2011 | 2004 Buick Rendezvous

1 Answer

'02 Rendevous beeping randomly, no lights or trouble indicatiors on. Beeps when parked, beeps while driving, no rhyme or reason apparant. sometimes goes 10 or 15 minutes without beeping, other times beeps...


The audible warnings alert the driver of a system concern or a critical vehicle condition. The radio generates the audible warnings through the left front speaker. The radio receives audible warning requests via the class 2 serial data line from the IPC or body control module (BCM). If the radio receives multiple audible warning requests, the warning with the highest priority sounds first. The following lists the audible warning priority and the pulse rate:
Fast rate chime--200 pulses per minute
Medium rate chime--150 pulses per minute
Slow rate chime--50 pulses per minute
Single chime

Is the sound heard different from typical Audible Warnings ?

Fasten Safety Belt Warning
The radio activates the fasten safety belt audible warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency, slow rate and duration (5 pulses). The fasten safety belt warning sounds and the fasten safety belt indicator illuminates when the following occurs:
• The ignition switch transitions to ON.
• The inflatable restraint sensing and diagnostic module (SDM) detects that the driver's seat belt is not buckled, signal is low. The IPC receives a class 2 message from the SDM indicating the driver's seat belt status.
If the seat belt is buckled when the ignition is turned on, the chime does not sound. If the seat belt is buckled while the chime is sounding, the chime stops. If the seat belt is unbuckled after the initial transition to ON, the chime does not sound.
Headlamps On Warning
The radio activates the headlamps on warning as requested by the body control module (BCM). The BCM sends a class 2 message to the radio indicating the chime frequency, fast rate and duration, continuous. The headlamps on warning sounds when the following occurs:
• The ignition is OFF.
• The BCM determines that the driver's door is open, signal is low.
• The BCM determines that the headlamp switch is in the park or head position.
Key-In-Ignition Warning
The radio activates the key-in-ignition audible warning as requested by the BCM. The BCM sends a class 2 message to the radio indicating the chime frequency, medium rate and duration, continuous. The key-in-ignition warning sounds when the following occurs:
• The ignition switch is OFF.
• The body control module (BCM) determines that the driver's door is open, signal is low.
• The BCM determines that the key-in-ignition switch is closed, signal is low.
Turn Signal Reminder
The radio activates the turn signal warning as requested by the IPC. The IPC sends a class 2 message to the radio indicating the chime frequency, medium rate and duration, continuous. The turn signal warning sounds when the following occurs:
• The ignition switch is in the RUN position.
• The turn signal switch is in either turn position, sensing, within 1 second, an open to B+ transition in the turn signal control circuit, left or right turn.
• The vehicle has traveled a distance of 1.2 km (¾ mi) by counting pulses on the vehicle speed input circuit.
The IPC turns OFF the turn signal reminder when either the ignition switch is turned to the OFF position, or the turn signal switch returns to the OFF position, sensing, within 1 second, no transitions from open to B+ in either of the turn signal control circuits, left turn or right turn.
Additional Chimes
The following chimes will turn ON when an associated indicator/message turns ON in the IPC/DIC:
• ABS indicator
• AWD Disable indicator
• Battery/Charge indicator
• Brake indicator
• Change Engine Oil indicator
• Door Ajar indicator
• Hot Coolant Temp indicator
• Low Brake Fluid indicator
• Low Fuel indicator
• Low Oil Level indicator
• Low Oil Pressure indicator
• Low Tire Pressure indicator/reset
• Low Washer Fluid indicator
• MIL (Service Engine Soon) indicator
• Oil Life Reset
• Park Lamp Out indicator
• Rear Hatch Ajar indicator
• Service Traction System indicator
• Service Vehicle Soon indicator
• TRAC OFF indicator
For a description of an indicator refer to Indicator/Warning Message Description and Operation .
For diagnosis of an indicator refer to Symptoms - Instrument Panel, Gages and Console .

Did the Mechanic check for DTC'S - diagnostic trouble codes in the BCM or insturment cluster ? Did you try a Buick dealer ?

Jul 09, 2017 | 2002 Buick Rendezvous

2 Answers

How do I turn off the brake light sensor and chimes on my 03 Buick Rendevuez?


Brake light sensor senses low fluid, pads,leaks,and/ or other break issues. Easiest is fluid level.

It's like emissions you hate to see it go on.

Mar 30, 2010 | 2003 Buick Rendezvous

1 Answer

03 buick rendezvous interior light will not turn off


one of the door jamb switches are bad remove them one at a time until light goes out

Jul 19, 2009 | 2003 Buick Rendezvous

1 Answer

Service engine soon light on in 2004 buick rendevous after accident. no codes given. turns on when engine starts.ran scanner- no codes... had to reset everything after car repairs. told not related to...


oh thats the change oil light expect it every 3500 to 4500 miles they glow.. you can usually reset it by holding down the trip button with the car off and then turn the key to the II position where everything lights up
so read me >>>>>
Buick Rainier 2004-06, Buick Rendezvous 2002-05 w/o (DIC) Driver Information Center
Turn the ignition to ON without starting the engine. Fully press and release the accelerator pedal three time in five seconds. If the CHANGE OIL SOON’ indicator flashes two times, the system is resetting. Turn the key to OFF, then start the vehicle. If the CHANGE OIL SOON indicator comes on and stays on for five seconds, repeat the procedure.
Buick Rainier 2004-05 wI (DIC) Driver Information Center
The DIC display is located on the instrument panel cluster above the steering wheel. The DIG buttons are located on the steering wheel. Press button with the gas pump symbol to display engine oil life. Press button with the arrow symbol to reset engine oil life display.
Buick Rendezvous 2002-06 wI (DIC) Driver Information Center
To reset Service Reminder Indicator, turn ignition on with engine not running. Press the MODE button until DIC reads oil life left hold SET to reset. Press and hold the SET button until 100% is displayed. You will hear three chimes and the change oil message will go out. If the CHANGE ENGINE OIL’ message comes back on when the vehicle is started, the engine oil life system has not reset. Repeat the procedure.

May 08, 2009 | 2004 Buick Rendezvous

1 Answer

Setting up keyless remote entry with a new remote


1. Close all doors.
2. Press and hold the Unlock button on door lock switch on drivers door.
Hold until instructed to release.

3. Insert and remove key from ignition 2 times. Do Not turn ignition.
4. Insert key in ignition a third time and leave key in ignition. Do Not turn ignition.

5. Release door lock switch on drivers door panel.
A Chime will sound 3 times indicating that you are in programming mode.

6. Press both the Lock and Unlock buttons on the remote up to 30 seconds.
A chime will sound 2 times if remote has programmed successful.

7. Repeat step 6 if you are programming additional remotes.
8. Remove key from ignition to exit programming mode.

Dec 09, 2008 | 2002 Buick Rendezvous

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