
Haval H9 has three central differential locks. Introduction to Central Differential Lock: The central differential lock is a locking mechanism installed on the central differential, used in four-wheel-drive vehicles. Its purpose is to enhance the vehicle's off-road capability on poor road surfaces. When one of the drive axles spins freely, it can quickly lock the differential, turning the two drive axles into a rigid connection. Other Features of Haval H9: The Haval H9 is Haval's first high-end off-road SUV, featuring a non-load-bearing pure off-road body. Its exterior design emphasizes a bold, simple, and powerful appearance. It includes 4-distance automatic following with support for following on curves with a radius greater than 125 meters; lane departure warning and lane change assist, where the instrument display alerts the driver when unintentional lane departure is detected, prompting them to return to the lane, thereby improving driving safety; three differential locks, which, when wheels slip, can be fully engaged via electronic control buttons, transferring 100% of the traction to the effective wheels, enhancing the vehicle's ability to escape difficult situations.

I recently studied the configuration of the Haval H9, and the four-wheel-drive version of this car only has one central differential lock. During my test drive, I specifically experienced this feature. In off-road mode, you need to manually press the differential lock button on the center console to activate it. Once locked, the entire car feels like it's nailed to the ground, making it very stable when climbing slopes in muddy terrain. Although it's a single central lock, it's sufficient for moderate off-roading when paired with the electronic limited-slip system. Moreover, there's an optional Eaton differential lock version for the rear axle. With all three locks engaged, it becomes a true hardcore off-road configuration. However, it's basically unnecessary for city driving and would significantly increase fuel consumption.

I've taken my Haval H9 on several long-distance off-road trips. It has only one central differential lock, located in the transfer case. When locked, it creates a direct rigid connection between the front and rear axles, distributing power decisively when wheels slip. I remember getting stuck in snow last winter - engaging this lock along with low-range 4WD got me out easily. But two things to note: first, it automatically disengages above 30 km/h, and second, frequent use accelerates drivetrain wear. For daily driving, keeping it in AUTO mode is recommended - the electronic system automatically distributes power, making the lock unnecessary.

The differential lock configuration of the Haval H9 is very clear: all versions come standard with one central differential lock. This electronically controlled mechanical lock is located inside the transfer case and achieves full locking through a multi-plate clutch. In practical use, the response speed is faster than expected, with the manufacturer claiming it engages in just 0.08 seconds. Paired with BorgWarner's dual-speed TOD four-wheel drive system, power is rigidly transmitted to the front and rear axles when locked. However, for more extreme off-roading, it is recommended to opt for the version with a rear differential lock. Two locks plus electronic slip limitation make for the complete setup.

My friend just finished modifying the chassis of his newly purchased Haval H9, and I joined him for a test drive at the off-road site. Its central differential lock is a single unit, and the locking sensation was particularly noticeable on the gravel slope—the rear wheels' power output suddenly doubled, and the tire grip was instantly maximized. The technician mentioned that this lock structure is more stable than electronic traction control and won't overheat or fail. However, it's important to note that when neither the front nor rear axle is locked, you can only rely on electronic traction control to assist in escaping tough spots. If you frequently drive on sand, it's recommended to install a rear locker to improve the vehicle's overall balance.


