Table 1 shows one common exterior lighting related problems of the 2023 GMC Yukon.
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting problems |
The panoramic sunroof has a substantial leak, even though the 2023 vehicle only has 33,000 miles on it. The drain lines are clear but water continues to significantly leak out of the rear passenger seatbelt housing onto the seatbelt. There is also significant water drainage through the rear interior lights onto the upper legs of rear passengers (children in car seats), causing a severe electrical hazard. The leaking caused by the drainage defect affects the interior lighting, the seatbelts, and is a potential electric hazard. This seems to be a common occurrence and the manufacturer should repair their defective products. The drainage pipes are obviously either not assembled correctly or the materials don’t hold up. This should not be occurring in a $55,000 vehicle with 30,000 miles. I have multiple videos I can provide but the file sizes are too large to upload, so I took screenshots. I am going to pay for the repair but I should be reimbursed by GMC.
Dealer install illuminated sill plates gm part no. : 84667517 causing dangerous distracted driving since they do now turn off when the doors are shut and driving as advertised. Dealer double checked installation, but I feel gm installation need to be revised. See product description below from gm website: product information help give your vehicle a customized appearance water, uv and chemical resistant designed for a precision fit protect your door sills from scratches and scrapes kit includes four hardwired door sill plates for the front and rear doors features the denali script make your GMC shine with stylish soft lighting that creates a more upscale appearance automatically illuminate when door is opened and turn off when door closes.