2010 Buick LaCrosse - Answered Questions & Fixed issues

Question edited for clarity. Question moved to model clarity. https://www.google.com/search?q=2010+Buick+LaCrosse+3.0.+cylinder+head+bolt+Torque

Do the other windows open an close? If so,get a voltmeter an test for battery voltage at the driver's door window switch . lights an radio staying on after opening door could be a problem with the accessory delay relay.

Some versions of the Lacrosse did not have a remote release fitted. Try pushing the edge of the fuel door nearest the front of the car in towards the filler hole. The flap should swing out the same way the doors do on that side. Another type uses a 'click' latch. Push the Rear edge of the fuel door in towards the filler hole until you hear a slight click noise. Release the pressure and the fuel door will spring open a small amount. To close the click type you simply push the flap closed until you hear the click noise again.

You can use any good grade of antifreeze to recharge the sys. Based on how much you have to add to the system you might want to remove the radiator cap and add the antifreeze. Be sure to pour it in slow so you do not get an air lock and spit it all back out when the engine heats up.

Take it by the dealer , they would be glade to help ! I don't think they would even charge you . Or read the owners manual .

https://www.autocodes.com/p0017_buick.html

You first need to find out what DTC'S diagnostic trouble codes are stored in the electronic brake control module . I suggest you take the vehicle to a reputable ASE certified repair shop . There is nothing you can do !

THERE IS A SWITCH UNDER HOOD IT IS EITHER BROKEN OR DICONNECTED

An what would you like to know ? How to fix it , how to close it ? There are complex electronics involved , An if you are not familiar with these thing's I suggest you take to a qualified repair shop ! It should still be under warranty ! BATT MAIN 2 Fuse 50 A

?€¢ Body control module (BCM)

?€¢ RAP relay

?€¢ S/Roof Fuse 20 A

?€¢ Sunroof module (includes sunroof motor/actuator)

?€¢ Sunroof switch

Most likely, the ignition switch is failing. Not a difficult replacement. Could also be a fault in your remote start module but less likely.

Try checking the power steering belt. It could be damaged

use the key to unlock the door and pull hood handle

I have a keyless fob and am getting the same message. Any ideas how to get the message to turn off?

usually a circut breaker/switch module. are any of the grids broken on rear glass?

press and hold the door unlock button on the driver side until you hear it open. I think it's 5 sec

check to see if its in behind the glove box. look in your owners manual to see if its got one.

Question edited for clarity and spelling. Question moved to model category. Ideas in the link, but the easy way is to use the spare key. All cars come with 3 sets. Or an Auto Locksmith. https://www.google.com/search?q=buick+lacrosse+keys+locked+in+car ..

Headlamps You can use the headlamps two different ways. • Place the headlamp switch in the HEAD position for normal operations • Place the headlamp switch in the OFF position for automatic lamp control (ALC) operation. During ALC the low beam headlamps are ON for daytime running lamp (DRL) operation in daylight conditions at reduced intensity or low beam headlamps ON at full intensity with exterior park lamps ON in low light conditions. The body control module (BCM) applies a pulse width modulated (PWM) voltage to the headlamp module and high beam relay in the underhood fuse block. The ground for the headlamp module is supplied from G113 or G115. For normal manual low beam operation when the headlamp switch is place in the HEAD position, ground from G202 is applied through the headlamp switch and to the BCM through the headlamp switch headlamps ON signal circuit. The BCM then applies a PWM voltage to the headlamp module/high beam relay voltage supply circuit. The headlamp module then applies battery positive voltage through the left front (LF) and right front (RF) LO Beam fuses to the left and right low beam headlamps. The ground for the left headlamps is supplied by G101 and the ground for the right headlamp is supplied by G100. For high beam operation, ground is applied at all times to the headlamp dimmer switch from G202. When the headlamp dimmer switch is placed in the HIGH position, ground is then applied through the headlamp dimmer switch signal circuit to the BCM. The BCM then applies a ground to the headlamp high beam relay control circuit. This energizes the HI Beam relay, the relay then applies battery positive voltage through the LF and RF HI BEAM fuses to the LF and RF high beam headlamps. The ground for the left headlamps is supplied by G101 and the ground for the right headlamp is supplied by G100. The BCM then sends a class 2 message to the instrument cluster in order to illuminate the high beam indicator lamp. If the headlamp switch is left in the HEAD position, the inadvertent power control feature will turn OFF the headlamps after 10 minutes after you turn the ignition switch to the OFF position. If you place the headlamp switch in the head position after the ignition switch has been turned OFF, or if the ignition switch is in ACCY position, the headlamps will remain ON until you turn them OFF or until the battery runs dead.

Make sure that all the bulbs are the correct ones and have a good ground.