How to Replace Liftgate Electric Strut Support

In this guide, you will learn how to replace electric boot struts or electric trunk struts.

Contents

Power lift gates have become widespread in SUVs, Crossovers, minivans, and sedans. These gates are either fitted with hydraulic struts or electric ones.

Buick and some GM cars used electric struts to power the electric liftgate (trunk).

Buick electric struts, like other things, do not last forever, it would fail after some years of service.

Fixing your Buick's electric struts is relatively easy, you may follow our instructions below to replace your electric trunk or boot struts.  

What you will need

Tools

Parts

Procedure

  1. To open the trunk, be sure that the doors are unlocked. there are many ways to open the trunk you can press the touchpad under the Buick emblem. You can also open the trunk by pressing the release mechanism on the trunk handle. There is also a release button on the driver's console. And finally, you can open the trunk using the FOB.
  2. If the trunk is unlatched but failed to extend completely, lift the trunk with your arms.
  3. Have a friend keep the liftgate open. 
  4. Find the electric trunk strut. On the side of the trunk, you would find a long black bar that resembles a shock absorber and extends from the car body to the liftgate.
  5. Find the electrical connector terminal on the body, push the tabs, then pull the connector out.
  6. To remove the electric trunk strut, remove the connection from the trunk first. There will be a metal clip that locks the electric trunk support strut to the trunk. Twist the clip using a flat head screwdriver. Once the lock is released, you can pull out the strut sideways towards the outer side of the car.
  7. Find the other end of the strut; there will also be a metal lock on this side; flip it using the flat head screwdriver; once the lock is released, you can pull the strut sideways towards the center of the car.  
  8. Prepare the new strut and compare it with the old one; it should look the same. 
  9. Install the side of the strut that is bind to the body by guiding the strut's slot to the strut frame.
  10. Extend the trunk to fit the length of the strut, press the other end of the strut's guide to the strut's frame on the trunk.
  11. Reconnect the electrical connector.
  12. Repeat the same steps to remove and install the struts on the other side.

Do not connect the electrical connector while the Trunk Support is not yet installed properly. If you install the electrical while the Trunk Support Strut is not yet secured, there will be a risk of ruining the electrical strut support.

Frequently Asked Questions  

How do power liftgate struts work?

  • A power liftgate is a motorized hatch that opens and closes electronically. You can activate the system by pressing or holding a button inside the car, key fob, or the hatch itself.

How long should trunk struts last?

  • On average, if your car has been used gently, and the trunk is not used regularly you can expect your trunk struts to last about 10 years. If you have really used your car as a workhorse, 5 years is probably all you can expect.

How much to replace front struts?

  • On average, expect to pay somewhere between $450 and $900 to replace a pair of struts. An individual strut assembly will cost about $230 to $300 so you're looking at around $300 to $600 for parts only. Labor will set you back about $150 to $300 for the pair.
How to Replace Liftgate Electric Strut Support Power lift gates have become widespread in SUVs, Crossovers, minivans, and sedans. These gates are either fitted with hydraulic struts or electric ones. Buick and some GM cars used electric struts to power the electric liftgate (trunk). Buick electric struts, like other things, do not last forever, it would fail after some years of service.