Why does my Buick Envista rattle from the liftgate over bumps?

Short answer: Owners trace this rattle to the plastic trim above the rear window and the metal strip underneath it, a loose sound-deadening panel, or loose trim clips. Liftgate struts are what dealers usually replace first, and that didn't fix it for these owners. Show the dealer the trim test: press the upper trim and see if the noise stops. Ask them to check the panel adhesive and clips.

Symptom: A rattle or buzz from the back of the car over bumpy or uneven pavement. It's often worse on rough local roads and may stop when you press on the trim above the rear window.

What to check first

1. Close the liftgate by hand to make sure it fully latches.
2. Remove the cargo cover and drive the same road.
3. Press on the upper liftgate trim while someone drives to see if the noise changes.
4. Record a video with sound and the road type to show the dealer.
5. Ask for a highway or rough-road test drive with the tech.
6. Run your VIN at nhtsa.gov/recalls.

Likely causes

1. Upper liftgate trim and the metal strip under it. Several owners traced the rattle to the plastic trim above the rear window and a metal strip underneath it. Pushing on that trim stops the noise for a while.
2. Loose sound-deadening panel. Sound-deadening panels are glued to body panels to cut road noise. One owner said theirs had a missed adhesive bead, so the panel flapped and rattled over rough roads. The fix was to re-glue it.
3. Loose clips on interior trim. An owner who sound-deadened the whole car said putting felt tape over each trim clip, or swapping to steel clips, quieted it.
4. Liftgate not fully latched, cargo cover or shock mounts. Other owners found a loose cargo cover, a liftgate that didn't fully latch when closed by the button, or rear shock mounts. Dealers often replace the liftgate struts first, which didn't fix it for these owners.

What it usually costs

Under warranty, owners paid nothing for strut and trim replacements. Felt tape and a trim tool kit are inexpensive. Owners didn't post shop prices.

Is it safe to keep driving?

A trim rattle isn't a safety issue. If the liftgate doesn't latch fully, fix that before driving, since it could open.

DIY or shop?

Felt tape on clips and checking the latch are DIY. Removing the liftgate trim takes care because clips break easily. Re-gluing a sound-deadening panel is easier at the dealer while you're under warranty.

Recalls, bulletins and complaints in plain words

• Recalls: NHTSA lists 2 recalls for the 2024-2026 Envista: 23V744000 (the instrument panel display may go blank) and 26V539000 (the rearview camera may show a distorted or blank image, and dealers inspect and replace it). Neither is about rattles. Check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 4 keyword-matched complaints for Buick Envista 2024–2026 (of 97 unique complaints queried, NHTSA complaints API by model year, queried 2026-11-02; keywords: rattl, liftgate, hatch, trunk, noise, squeak) (NHTSA returned no data for 1 model-year queries). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In 8 visits for rear liftgate rattle (2024 Envista Avenir) - Upper trim replaced; still rattling over bumps. Any permanent fixes? on Reddit r/buickenvista, a 2024 Envista Avenir owner was on their eighth dealer visit for a rear liftgate rattle over bumps. Both liftgate struts and upper trim had been replaced and it still rattled. Replies blamed a sound-deadening panel with a missed adhesive bead (re-glue it), the plastic trim around the window (a cloth wedged in the closed liftgate silenced it), closing the gate by hand so it latches fully, or rear shock mounts.
• In Rattle Sound in Buick envista Avenir 2024 on Reddit r/buickenvista, a 2024 Avenir owner had been to the mechanic at least five times and had both tailgate struts replaced, but the rattle on rough roads stayed. Another owner said it's a metal strip under the plastic trim above the rear window, and shared a short video showing that pushing the trim quiets it. Another found a loose cargo cover. One said the dealer only heard their noise when test-driving at highway speed.
• In 2025 Envista Issues? on Reddit r/buickenvista, in a thread on 2025 Envista issues, owners listed the liftgate panel rattle over bumps, and one said they took the panel off and added felt tape over each clip or steel clips to stop it.

Quick tip

Point the dealer at the upper liftgate trim and the metal strip under it. That will save you from more strut replacements that don't work.

Vehicle focus: Buick Envista Preferred, Sport Touring and Avenir, 2024-2026.

Safety / mechanic note

Make sure the liftgate latches before driving. Verify with a mechanic.