General Motors has issued a service notice for 2027 Chevrolet Bolt vehicles still at dealership lots after identifying a potential water leak involving the hatchback’s taillight harness grommets. The notice is not classified as a safety recall and does not apply to Bolts already delivered to customers.

The affected vehicles may have taillight grommets that are not fully seated in the bodywork. If the seal is incomplete, water could enter the taillight assembly.

How dealers will inspect the Bolt

Dealership technicians have been instructed to fold down the rear seats and view the grommets through openings near the rear seat latch strikers. The taillights must then be sprayed with water for at least one minute.

If the inspection reveals water passing through a grommet, the technician must remove the affected taillight and correctly reseat the grommet in the sheet metal. A second water test is required afterward to verify that the assembly is sealed.

Vehicles certified as pre-owned will temporarily lose that certification until the inspection is completed and any required repair is carried out.

Production reduction follows service notice

The dealership inspection comes shortly after reports that Chevrolet’s planned 2027 Bolt production has been reduced substantially. The model was initially expected to reach approximately 150,000 units, but production is now set to end after roughly 35,000 vehicles are built.

The Bolt remains one of the least expensive new electric vehicles in the United States, with a listed starting price of $27,600 before the $1,395 destination charge. The source does not provide a reason for the dealership service notice beyond the potential taillight water intrusion, nor does it indicate that customer-delivered vehicles are included.

The source also notes that minor water intrusion into the taillights is not considered a safety risk. Owners who observe signs of leakage could seek an inspection, although the service notice itself is limited to 2027 Bolts located at dealerships.