Do not rely on the dealer telling you “it’s up to date.” Manually verify it:
Step 1: Start the engine (or press the start button twice without foot on brake – accessory mode).
Step 2: Go to the main screen → Settings → System → About.
Step 3: Look for:
What if you see version 2.3.1 or lower?
You are at least two major revisions behind. Do not attempt a direct jump to 2.4.3 via USB without a dealer’s intermediate update (risk of boot loop).
Based on a leaked dealer training document (verified by multiple sources), Haval plans to release version 3.0.0 in Q4 2025, which includes:
However, version 3.0.0 will require a dealer-installed hardware dongle (approx. $50) to handle the increased data bandwidth for the new UI animations. Do not attempt to install leaked 3.0.0 beta files – they are currently not verified for production models.
The TCU update cannot be performed by the owner. It requires a GWM diagnostic scanner (X431 or OEM tool) to flash the transmission control module. Expect to pay 0.5–1.0 hour of labor ($60–$120 USD equivalent). Many dealers will perform it for free if you report the “low-speed jerk” as a safety concern.
✅ I received the update notification from Haval’s official server.
✅ My car is parked, battery >12.5V, and I have 30 mins free.
✅ I have not modified the car’s ECU or infotainment system.
✅ After update, all safety systems (ABS, ESC, AEB) show green on the driver display.
✅ I have a screenshot of the old version number as backup.
Many owners reported low-speed hesitation (1st to 2nd gear) in city traffic. The verified TCU update:
Do not rely on the dealer telling you “it’s up to date.” Manually verify it:
Step 1: Start the engine (or press the start button twice without foot on brake – accessory mode).
Step 2: Go to the main screen → Settings → System → About.
Step 3: Look for:
What if you see version 2.3.1 or lower?
You are at least two major revisions behind. Do not attempt a direct jump to 2.4.3 via USB without a dealer’s intermediate update (risk of boot loop). haval jolion software update verified
Based on a leaked dealer training document (verified by multiple sources), Haval plans to release version 3.0.0 in Q4 2025, which includes:
However, version 3.0.0 will require a dealer-installed hardware dongle (approx. $50) to handle the increased data bandwidth for the new UI animations. Do not attempt to install leaked 3.0.0 beta files – they are currently not verified for production models. Do not rely on the dealer telling you “it’s up to date
The TCU update cannot be performed by the owner. It requires a GWM diagnostic scanner (X431 or OEM tool) to flash the transmission control module. Expect to pay 0.5–1.0 hour of labor ($60–$120 USD equivalent). Many dealers will perform it for free if you report the “low-speed jerk” as a safety concern.
✅ I received the update notification from Haval’s official server.
✅ My car is parked, battery >12.5V, and I have 30 mins free.
✅ I have not modified the car’s ECU or infotainment system.
✅ After update, all safety systems (ABS, ESC, AEB) show green on the driver display.
✅ I have a screenshot of the old version number as backup. What if you see version 2
Many owners reported low-speed hesitation (1st to 2nd gear) in city traffic. The verified TCU update: