2016-2018 Buick Envision Tailgate: Power Liftgate Problems and Camera System Traps
This guide covers common power liftgate failures, recall information, and the critical difference between camera systems you must know before buying a used tailgate.
- You MUST verify if your Envision has the standard Rear Vision camera or the optional Surround Vision (360-degree) system before buying a used tailgate; they are not interchangeable.
- Intermittent power liftgate problems (stopping mid-travel) may be caused by a simple bad connector pin, as noted in a GM service bulletin, not necessarily a failed motor.
- A used OEM tailgate assembly will need to be professionally painted to match your vehicle, a significant added cost to consider.
- If the tailgate won't stay open, the support struts have failed and this is a critical safety issue that should be addressed immediately.
Symptoms of Tailgate and Power Liftgate Failure
Problems with the 2016-2018 Buick Envision tailgate range from simple mechanical issues to complex electrical failures. The most common reason for replacement is collision damage, but the power liftgate system is also a frequent source of problems.
Power Liftgate Malfunctions
- Strange Noises: Grinding, clicking, whirring, or popping sounds during operation often point to a failing motor, worn gears in the actuator, or a problem with the power struts.
- Incomplete or Slow Operation: The liftgate may open or close very slowly, hesitate, or stop before it is fully open or closed. This can be caused by a weak motor, failing lift struts, or an electrical issue.
- Fails to Open or Close: The gate may not respond at all when the button on the key fob, interior, or tailgate is pressed. It might beep but fail to move. This could be anything from a blown fuse to a failed liftgate control module or actuator.
- Liftgate Won't Stay Open: If the tailgate opens but then slowly drifts down or slams shut, the gas-charged support struts are weak and can no longer support the weight. This is a significant safety hazard.
- Burning Smell: A distinct burning smell from the rear of the vehicle during operation is a serious sign that the liftgate motor is overheating and failing.
Latch and Electrical Problems
- "Gate Ajar" Warning: A persistent warning light on the dashboard indicates the vehicle does not recognize the latch as being securely closed. This could be the latch itself or the pulldown motor that cinches it tight.
- Wiring Damage: The wiring harness that runs from the vehicle body into the tailgate is constantly flexed. Over time, wires can break, causing issues with the camera, lights, or the entire power lift system.
Pro Tip: A common hidden issue on these and similar GM SUVs is a poor connection at the liftgate object sensor. A Technical Service Bulletin (TSB) for other models points to bent or misaligned pins in the connector, which can cause intermittent operation and set a diagnostic trouble code (DTC) B153F. Before replacing expensive parts, inspect this connection behind the upper liftgate trim.
Buying a Used 2016-2018 Envision Tailgate
A used OEM tailgate is often the most cost-effective solution, but careful inspection is critical. The single most important factor is matching the camera system your vehicle was built with.
Warning: The 2016-2018 Buick Envision was available with two different camera systems. A tailgate designed for one system is NOT compatible with the other. You must verify which system your vehicle has before purchasing a replacement.
How to Identify Your Camera System
- Standard Rear Vision Camera: This is the base system. It consists of a single camera on the tailgate that shows a view of what is directly behind the vehicle when in reverse.
- Surround Vision (360-Degree Camera): This optional system uses multiple cameras to create a virtual "bird's-eye" view of the vehicle. To identify this system, look for cameras in these three locations: the rear tailgate, the front grille, and under each of the side-view mirrors. If your vehicle has cameras under the side mirrors, you have the Surround Vision system and need a tailgate compatible with it.
Physical Inspection Checklist
- Check for Hidden Damage: Look for signs of previous repairs, like wavy sheet metal, thick paint, or areas where body filler (Bondo) might have been used. Check the inside of the shell for any wrinkles or repaired metal.
- Inspect for Rust: Pay close attention to the bottom edge, the area around the window seal, and the mounting points for the handle and license plate lights.
- Verify Wiring Integrity: Ensure the main wiring harness that passes into the tailgate is not cut or damaged. Check that all connectors for lights, the latch, and the camera are present and intact.
- Confirm Completeness: A tailgate can be sold as a "shell" (bare sheet metal and glass) or as a complete assembly. Confirm exactly what is included. Does it come with the wiper motor, lights, interior trim panel, and latch? A more complete assembly can save significant time and money on transferring parts.
Known Issues, Recalls, and TSBs
While there are no recalls specifically for the tailgate assembly on the 2016-2018 Buick Envision, several vehicle-level issues are worth noting.
- Recall NHTSA 17V412: This safety recall affects a very small number of 2016-2017 Envision vehicles that had their headliner replaced during service. The replacement headliners may be missing energy-absorbing foam blocks, increasing the risk of injury in a crash. While unrelated to tailgate function, it is an important safety check for this model.
- TSB PIE0573A: As mentioned previously, this TSB for similar GM SUVs describes intermittent power liftgate operation caused by a bad electrical connection at the object sensor. Symptoms include the gate stopping shortly after opening or refusing to close with the power buttons. This is a valuable diagnostic lead for any Envision exhibiting these issues.
Cost and Replacement
Replacing a tailgate is an expensive repair, primarily due to the cost of the part and the need for professional painting and component transfer.
Installation Details
- Difficulty: 4 out of 5. This is a challenging job for a DIY mechanic. The tailgate is heavy and requires two people to handle safely. It involves transferring numerous electrical components, trim panels, and mechanical parts.
- DIY Feasibility: Not recommended for beginners. Requires body panel alignment skills, and the replacement part will need to be professionally painted to match your vehicle's color.
- Professional Installation: A body shop will be required for painting. Labor for swapping the components and installing the tailgate typically takes 3-5 hours.
Cost Comparison
| Part Type | Estimated Cost |
|---|---|
| New OEM | $1,500 - $2,500+ (shell only, unpainted) |
| New Aftermarket | $500 - $700 (shell only, unpainted) |
| Used OEM | $550 - $1,200 (complete assembly, needs paint) |
| Shop Labor (Installation) | $300 - $700 (does not include painting) |
| Shop Labor (Painting) | $400 - $800+ |
Frequently Asked Questions (FAQ)
Can I just replace the power liftgate motor or struts?
Yes, individual components of the power liftgate system, like the motorized struts or the latch actuator, can be replaced separately. For example, replacing just the liftgate pulldown motor can cost between $620 and $680 at a shop. This is often a better option if the tailgate panel itself is in good condition.
How do I find my paint code to match a new tailgate?
On the Buick Envision, the paint code is typically found on the "Service Parts Identification" sticker located inside the glove box. Look for a code that starts with "BC/CC" and is followed by a "U" or "WA" prefix.
Can I convert my manual liftgate to a power liftgate?
While aftermarket kits exist to convert a manual liftgate to power, it is a very complex and invasive installation. It requires extensive wiring, drilling, and mounting of new components. For most owners, it is not a practical or cost-effective modification.
My liftgate opens a little and then stops. What's the problem?
This is a classic symptom of a few potential issues. It could be weak lift struts unable to overcome the initial weight, but on a power liftgate, it often points to an electrical problem. Check for TSB PIE0573A, which suggests a bad connection at the liftgate object sensor could be the cause. It could also be a failing power actuator or an issue with the liftgate control module.
Technical Specifications
OEM Part Numbers: 22906645 22926660 23271164 23282919 23331292 23342588 23350625 23350628 84093580
Compatibility is determined by model year (2016-2018) and the installed camera system (Standard Rear Vision vs. Surround Vision).
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.
- Buick Envision:
- Symptoms of Tailgate and Power Liftgate Failure
- Power Liftgate Malfunctions
- Latch and Electrical Problems
- Buying a Used 2016-2018 Envision Tailgate
- How to Identify Your Camera System
- Physical Inspection Checklist
- Known Issues, Recalls, and TSBs
- Cost and Replacement
- Installation Details
- Cost Comparison
- Frequently Asked Questions (FAQ)
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