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Buick LaCrosse Electrical Fuse Replacement Guide
How to check or change a blown electrical fuse or relay in a 2nd generation 2010 to 2016 Buick LaCrosse with pictures.

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2016 LaCrosse Fuse Box
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Front Retaining Clip
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Pointing To Rear Clip

This automotive maintenance tutorial was specifically written to assist owners of the second generation (2010, 2011, 2012, 2013, 2014, 2015 & 2016) GM Buick LaCrosse sedan in checking or changing a blown fuse in either the engine bay or the interior passenger compartment electrical panels.

Owners of other General Motors vehicles such as the Chevrolet Impala, Monte Carlo, Malibu, Spark, Sonic, Cruze, Volt, SS, Camaro, Caprice, Corvette, Trax, Equinox, Traverse, Tahoe, Suburban, Colorado, Silverado, Buick Verano, Regal, Cascada, Encore, Enclave, Envision, GMC Canyon, Sierra, Terrain, Acadia, Yukon, Savana, Cadillac CT6, ATS-V, ATS, ELR, CTS, XTS, XT5, SRX, Escalade and Holden Commodore may also find these DIY instructions to be helpful.

A white plastic fuse puller tool should be included on the engine bay electrical block. If the tool is missing, you can use a pair of needle nose pliers with rubber insulated handles.


This 2016 LaCrosse is equipped with standard mini blade fuses which can be purchased at Walmart, any auto parts store or online at Amazon.
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Pinch Together Two Tabs
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Release Right Side Clip
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Pull Off Fuse Box Cover
The first two steps are to open the hood and move to the right side of the engine bay.

The engine bay fuse box is located on the right side just behind the driver side headlight assembly and next to the 12V automotive battery.

The fuse box cover is held in place by three retaining clips. There is one on the left side, another on the right side and a third one on the rear (near the windshield).

To release the retaining clips, gently pinch (squeeze) together the two prongs towards each other as illustrated in the picture above.

Lift the fuse box cover straight off to access the engine bay electrical block.

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Fuse Location Diagram
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Engine Bay Electrical Block
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Plastic Fuse Puller Tool
Turn over the fuse box cover to view the fuse location diagram.

There is also another fuse location diagram in your owner's manual.

The white plastic fuse puller tool is located near the right (driver side) rear corner of the engine bay fuse block.

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Driver Side Dashboard
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Open Storage Compartment
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Push Together Sides
The interior passenger compartment fuse panel is located behind the storage door on the driver side of the dashboard.

The storage compartment drawer is in front of where the driver's left knee would normally reside while driving.



 

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Storage Drawer Removed
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Interior Fuse Panel
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Place Tool Over Old Fuse
There is a fuse location diagram for the interior electrical panel on the back side of the storage drawer.

You'll also find another diagram in the owner's manual.

Squeeze the end of the fuse puller tool to open the jaws.

Place the jaws over the old fuse you'd like to check or change.

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Old Fuse Removed
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Hold Up To Light Bulb
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Line Up New Fuse
Pull the old fuse straight out of the socket.

Hold the old fuse up to a light source to check it.

If the thin metal band or "strip" in the translucent plastic center appears to be broken or burnt, the old fuse is most likely faulty or "blown" and should be replaced with a new one.

If the thin metal bar in the middle of the old fuse appears to be intact, it is probably still good. Since new fuses are so inexpensive, it should still be replaced as part of your electrical problem troubleshooting process.

Push a new mini blade fuse of the same amperage rating (e.g. 5, 10, 15, 20, 25) straight in to the socket.

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Push In to Socket
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Replace Fuse Puller Tool
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Push On Fuse Box Cover
Replace the fuse puller tool on the engine bay electrical panel.

Line up the fuse box cover and push it down to secure the three retaining clips.

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Line Up Plastic Hinges
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Replace Side Stops
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Close Storage Drawer
To replace the interior fuse block access cover, re-attach the plastic hinges for the storage drawer.

Then squeeze together the two sides of the drawer and re-insert the plastic side stops behind the dashboard.

Close the storage compartment to complete the job.

Test the electrical component that you were having issues with such as the radio, wiper blades, interior lights, headlights, 12V socket, horn, power door locks, power windows, etc.

If you are still having the same problem, you might have a shorted somewhere or the component itself needs to be replaced.

For more, check out my other 2010-2016 Buick LaCrosse DIY Repair & Maintenance Guides.
 

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