VinFast Over-The-Air (OTA) Updates & ADAS Roadmap 2026: Firmware History, Bug Fixes, and Level 2 Autonomous Features

The transition from traditional distributed automotive microcontrollers to centralized Domain Controller architectures has defined modern electric vehicle engineering. In a VinFast vehicle, over 40 individual Electronic Control Units (ECUs) communicate across high-speed CAN-FD and Automotive Ethernet backbones coordinated by a Central Gateway. VinFast's Over-The-Air architecture utilizes Dual-Partition A/B Rollback Protection. When a firmware package is broadcast via encrypted 4G/5G or home Wi-Fi, the vehicle flashes the update to the inactive Partition B while the vehicle continues operating safely on Partition A. Only upon complete cryptographic hash verification and system health handshake does the vehicle switch active execution to the newly flashed partition during a scheduled parked restart. If any initialization anomaly is detected, the gateway instantaneously reverts to Partition A, eliminating the hazard of "bricking" the vehicle.

When the VinFast VF 8 first launched in early 2023, early software releases received mixed reviews for unpolished user interface quirks, phantom forward-collision warning alerts, erratic climate control blower modulation, and auxiliary 12V lead-acid battery discharge. Over the subsequent 36 months, VinFast delivered over 20 successive firmware updates that systematically targeted and resolved these concerns: • 12V Battery Sleep Management: Rewritten power-state sequencing ensures infotainment and telematics modules enter deep sleep within 90 seconds of vehicle locking, with the high-voltage DC-DC converter automatically waking to replenish the 12V battery if voltage dips below 12.4V. • Suspension & Damping Tuning: On vehicles equipped with adaptive damping, software revisions smoothed rebound damping over sharp highway expansion joints. • Infotainment Fluidity: Migrating to updated Android Automotive OS builds with multi-threaded graphic drivers eliminated touchscreen input lag and brought fluid 60 fps navigation rendering.

VinFast’s Level 2 Advanced Driver Assistance System (ADAS) leverages sensor fusion combining forward-facing millimeter-wave radar (operating at 77 GHz) with Mobileye EyeQ visual processing cameras and surround ultrasonic sensors: 1. Highway Driving Assist (HDA): Integrates Adaptive Cruise Control (ACC) with Active Lane Centering (LCC). The system holds precise lane positioning through sweeping highway bends up to 130 km/h, dynamically adjusting following distances based on wet or dry road surface traction. 2. Traffic Jam Assist (TJA): Operates at speeds from 0 to 60 km/h in stop-and-go urban gridlock, bringing the vehicle to a full smooth stop and resuming automatically without driver pedal input. 3. Automated Lane Change (ALC): When HDA is engaged on marked multi-lane expressways, tapping the turn signal lever commands the corner radars and side cameras to verify adjacent blind spots before executing a smooth, autonomous lane change.

Central to the cabin experience is the 15.6-inch central touchscreen, which acts as the vehicle's primary command center. VinFast's voice assistant—ViVi—features natural language comprehension supporting diverse regional Vietnamese dialects as well as English, German, and French. ViVi connects directly to generative cloud intelligence to handle complex contextual queries—such as finding the nearest high-power 250 kW charging stall on the V-GREEN Network, checking destination weather, or adjusting multi-zone cabin climate settings without taking eyes off the road.

Looking ahead into 2026 and 2027, VinFast's software engineering roadmap is targeting Level 2+ Navigation on Highway (NoH). This capability will enable automated highway on-ramp to off-ramp navigation, automatic interchange transitions, and intelligent overtaking of slower commercial trucks. In addition, smartphone-enabled Remote Smart Parking Assist will permit drivers to step out of tight garage bays or crowded parking spaces and command the vehicle to creep into or out of the parking stall autonomously via the mobile application.