2020-2021 GR Supra Decklid & Tailgate: Camera Swaps and Latch Issues Explained

Symptoms of Failure

Problems with the GR Supra's decklid are typically related to the latching mechanism, electronic components, or physical damage. Here are the most common symptoms owners experience:

• Tailgate Won't Open or Unlatch: The latch may fail to release electronically via the key fob or interior button. You might hear the actuator motor run, but the hatch remains stuck. This can be caused by a faulty latch mechanism or an issue with the emergency release cable. Toyota issued a Technical Service Tip (T-TT-0644-21) to investigate this condition, asking technicians to check if the latch releases electrically or with the manual handle.
• Tailgate Won't Close or Latch Properly: The decklid may not shut completely, leaving a visible gap and preventing it from locking. This can be due to an object obstructing the latch, a misaligned striker, or improperly adjusted bump stops.
• Weak or Failing Lift Struts: The gas-charged struts that lift and hold the tailgate may weaken over time, especially in cold weather or with the added weight of an aftermarket spoiler. 🎬 Watch this guide on replacing your Supra trunk struts for aftermarket wings This can cause the hatch to not open fully on its own or to slowly drift down after being opened.
• Rearview Camera Malfunction: The backup camera may display a black screen, flicker, or fail to activate. This is often due to a faulty camera unit or a damaged wiring harness.
• Rattling Noises: Owners report rattles from the rear of the car, which can sometimes be traced to a loose cargo cover, misadjusted bump stops, or loose interior trim on the tailgate itself.

Known Issues, Recalls, and TSBs

While there are no major safety recalls specifically for the tailgate structure, several related issues and service bulletins are important to know.

• TSB T-TT-0644-21 - Rear Hatch Will Not Open: Toyota acknowledged a condition where the rear hatch may not open electrically or manually on 2020-2021 models. The bulletin is an investigative measure to gather data on the cause, pointing to potential issues with the latch or release mechanism.
• Latch Adjustment for "Pressure Re-latching": Some owners have noted that if a door is closed while the hatch is unlatching, the change in cabin air pressure can cause the hatch to drop and partially re-latch before it has fully opened. This can often be corrected by adjusting the two rubber bump stops on the trunk lid to increase the initial "pop" distance.
• No Recalls for the Decklid Itself: As of late 2023, there are no NHTSA safety recalls for the GR Supra's tailgate panel, hinges, or latch mechanism. Other recalls for the 2020-2021 GR Supra relate to issues like seat belts, braking assist software, and backup camera software, but not the physical tailgate components.

Buying a Used 2020-2021 GR Supra Decklid

A used OEM decklid is often the best choice after collision damage, as the original aluminum panel is superior in fit and finish to any aftermarket alternative. However, careful inspection is key.

1. Verify the Donor Vehicle's Year: This is the most important step. Ask the seller for the VIN or model year of the car the part came from. This will help you determine which rearview camera it includes.
2. Inspect the Camera and Plug: If possible, get a clear photo of the camera's electrical connector to match with your existing one. Confirm the camera part number (86790-WAA02 for 2020, 86790-WAA04 for 2021). Note that newer part numbers like 86790-WAA06 may supersede older ones, but compatibility must be verified.
3. Check for Physical Damage: Look for dents, deep scratches, or waves in the panel that indicate past repairs or body filler. Pay close attention to the sharp crease of the integrated spoiler, as this area is difficult to repair.
4. Examine the Inner Structure: Inspect the inside of the tailgate for any signs of buckling or stress marks, which could indicate it came from a vehicle with significant rear-end collision damage.
5. Check the Wiring Harness: Ensure the wiring harness that runs to the camera and license plate lights is not cut, frayed, or damaged. Repairing this harness can be difficult.
6. Glass Condition: On Supras, the rear glass is part of the hatch assembly. Check carefully for scratches, chips, or cracks. A used tailgate with broken glass is worth significantly less.

Cost Comparison

Prices can vary based on condition, color, and included components. The primary value difference is whether the assembly includes a functional, compatible camera.

Replacement Overview

Replacing the tailgate is a moderately difficult job that is best done with a helper to prevent scratching the paint or damaging the panel. The main challenge is handling the size and weight of the assembly while disconnecting components.

• Difficulty: 3 out of 5
• Estimated Time: 1.5 - 2.5 hours
• Tools Needed: Socket set, trim removal tools, Torx bits, a helper.

General Steps:

1. Open the tailgate and support it securely.
2. Remove the interior plastic trim panel from the tailgate. This involves removing two Torx screws in the handhold areas and carefully prying off about 10 clips around the perimeter.
3. Disconnect the electrical connector for the camera and license plate lights. Unhook the emergency release cable.
4. While a helper supports the weight of the tailgate, disconnect the gas struts from their mounting points.
5. With your helper still supporting the tailgate, unbolt the hinges from the body of the car. Carefully lift the assembly away.
6. Installation is the reverse of removal. It's critical to align the panel correctly in the opening before fully tightening the hinge bolts to ensure even gaps.

Frequently Asked Questions (FAQ)