Is D Gear Flashing a Major Issue?

[Winter]

D gear flashing is a major issue. The D gear is a widely used forward gear in automatic transmission vehicles. Its primary function is to enable the transmission to automatically select the appropriate gear in real-time through the collaboration of the transmission's computer and corresponding mechanical structures while the vehicle is moving forward, thereby eliminating the need for manual gear shifting. The gears in an automatic transmission vehicle include: 1. P gear (Park), used for long-term parking of the vehicle; 2. R gear (Reverse), engaged when the vehicle needs to move backward; 3. N gear (Neutral), engaged when the vehicle is parked for a short period without turning off the engine; 4. S gear (Sport mode), which makes the vehicle's driving more sporty; 5. M gear (Manual mode), where gear shifting is manually performed by the driver when the gear lever is shifted into M.