2016-2017 GMC Terrain Bumper Hole Cover: A Guide to Fitment, Trims, and Replacement
This guide details the specific front bumper inserts for 2016-2017 GMC Terrain models, explaining compatibility differences and why replacement isn't as simple as it looks.
- This part is only for 2016-2017 Terrain SL and SLE trims that do NOT have factory LED Daytime Running Lights.
- Replacement is not a simple pop-in; it requires accessing the back of the bumper, often by removing the wheel well liner.
- When buying used, the integrity of the rear mounting tabs is more important than cosmetic scuffs on the face.
- Failure is always physical (missing, loose, or cracked) and does not affect the vehicle's safety or operation.
Symptoms of a Failing Bumper Hole Cover
Failure of this part is always physical, as it has no mechanical or electrical function. Diagnosis is a simple visual inspection.
- Missing Cover: The most common issue is the cover falling off completely, leaving an empty hole in the bumper. This is often due to the retaining clips breaking from age, vibration, or a minor impact.
- Loose Fit: Before falling off, the cover may feel loose or rattle. This indicates that one or more of the plastic mounting tabs on the back have broken, preventing it from seating securely in the bumper.
- Physical Damage: Cracks, deep scuffs, or holes from road debris or parking lot bumps are common. While often just a cosmetic issue, a significant impact can break the mounting tabs and lead to the part becoming loose or falling off.
Variant Differences: SL/SLE vs. SLT/Denali
Getting the correct bumper hole cover is crucial, as it is specific to certain trim levels. For the 2016-2017 model years, GMC changed the front fascia and lighting options.
Compatibility Warning: These bumper hole covers are intended for the SL and SLE trim levels. These are the models that do not come with the C-shaped LED Daytime Running Lights (DRLs) that are standard on the uplevel SLT and Denali trims. The SLT and Denali models have the actual light assembly in this location, not a blank cover.
While some bumper components on the SLT and Denali feature more chrome, these specific blank inserts are typically a textured black plastic. Always verify your vehicle's trim package before ordering to ensure you are buying the correct part for your bumper configuration.
Buying a Used Bumper Hole Cover
For a simple cosmetic part like this, a used OEM cover is often the best value. However, there are critical points to inspect to avoid buying a useless piece of plastic.
What to Inspect
- Mounting Tabs: This is the most important inspection point. Turn the cover over and check that all plastic tabs and clip retainers are present and intact. Even one broken tab can prevent the cover from fitting securely and lead to it falling off again. Do not buy a cover with broken or stressed-looking tabs.
- Condition of the Face: Minor scuffs and scratches from normal driving are expected on a used part and can often be minimized with a plastic trim restorer. However, look for deep gouges, stress marks (white discoloration in the plastic), or cracks that compromise the part's structure.
- Part Number Verification: If possible, match the part number from your old part (if you still have it) to the used one you are considering. Be sure to order for the correct side of the vehicle (driver or passenger).
Replacement Overview
Replacing this bumper insert is more involved than it appears. It is not a simple pop-in part that can be installed from the front of the vehicle. The cover is secured by clips on the back, requiring access to the rear of the bumper fascia.
A common procedure involves:
- Turning the steering wheel to gain access to the wheel well.
- Removing several screws or plastic clips holding the fender liner in place.
- Peeling back the fender liner to create enough space to reach behind the bumper.
- Releasing the clips on the old insert to push it out from the back.
- Aligning the new insert and pushing it into place until the clips lock securely.
In some cases, depending on the accessibility and the technician's preference, it may be easier to partially or fully remove the entire front bumper cover to get clear access. This involves removing fasteners under the bumper, in both wheel wells, and across the top of the grille.
Cost Comparison
The cost for these covers can vary significantly depending on the source.
| Part Source | Estimated Cost |
|---|---|
| New OEM | $70 - $150 |
| New Aftermarket | $40 - $110 |
| Used OEM | $25 - $75 |
| Shop Labor | $75 - $200 |
Pro Tip: Shop labor costs can be high relative to the part's price because of the need to remove the fender liner or bumper cover for access. A DIY replacement is very feasible for those comfortable with basic tools and can save over $100.
Frequently Asked Questions (FAQ)
Can I drive my Terrain without the bumper hole cover?
Yes. The cover is a cosmetic piece and has no impact on the vehicle's safety or drivability. Driving without it simply leaves an unsightly hole in the bumper.
Why did my bumper cover fall off?
The most likely cause is that the plastic retaining tabs on the back became brittle over time and broke due to road vibrations. A minor impact from a curb or road debris can also easily break these tabs, causing the part to become loose and eventually fall out.
Do I need to paint a replacement bumper hole cover?
No. These covers are typically made of a textured black plastic that is not meant to be painted, matching the other unpainted plastic trim on the vehicle's lower bumper area.
Is this the same part as a fog light?
No. This is a blank cover used on models that do NOT have fog lights or DRLs in that position. If your vehicle has a light in this location, you need to search for a fog light or daytime running light assembly, which is a completely different part.
Known Part Numbers
The following OEM part numbers are associated with front bumper components for the 2016-2017 GMC Terrain. This list may include various trim pieces, so it is critical to verify the exact part number for your specific vehicle and the side you need (driver or passenger).
Warning: Part numbers can be specific to the passenger or driver side and the trim package. Always confirm fitment with the seller by providing your vehicle's VIN.
- 23342705
- 23342707
- 23372632
- 84048491
- 84048493
- 84064625
- 84064627
- 84791979
- 84791981
- 23475985 (Front Bumper Cover Molding, Passenger Side)
Technical Specifications
OEM Part Numbers: 23342705 23342707 23372632 84048491 84048493 84064625 84064627 84791979 84791981 23475985
Material: Automotive-grade plastic (typically ABS). Finish: Textured, unpainted black.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- GMC Terrain: