
The fourth button is the remote start button. Within a range of several dozen meters, press the lock button for 1.5 seconds, then hold the fourth button for about 3 seconds to start the vehicle. Below are the specific details about the Hongqi H5: Vehicle Positioning: The Hongqi H5 is a sedan. It has a wheelbase of 2875 mm, with length, width, and height dimensions of 4945 mm, 1845 mm, and 1470 mm, respectively. Power System: The entire lineup is equipped with a 1.8-liter turbocharged engine, coded as CA4GC18TD-11. This 1.8-liter turbocharged engine delivers 180 horsepower and a maximum torque of 250 Nm. It features direct fuel injection technology and uses an aluminum cylinder head with a cast iron cylinder block. The engine is paired with a 6-speed automatic transmission from Aisin. Suspension System: The Hongqi H5 uses a MacPherson independent suspension at the front and a multi-link independent suspension at the rear.

The fourth button on the Hongqi H5 key fob is typically the remote engine start function. I've been using it for years, and it's incredibly practical, especially during winter when temperatures drop to minus ten degrees Celsius. With just one press, the engine starts to warm up, and the car interior heats up within five minutes, sparing me from shivering before getting in. It's also useful in summer—starting the car remotely to activate the air conditioning before entering ensures a cool interior after the vehicle has been baking in the sun. Just remember to use it in open spaces; starting the engine in a garage is risky, as it drains the faster and pollutes the air. The range is limited to about 20 meters, and while the mobile app also offers remote control, the key fob button is more direct and reliable. The H5's thoughtful design includes a safety lock with the remote start—if the car door isn’t opened after starting, the engine automatically shuts off. During routine maintenance, it’s wise to check the key fob’s battery level to avoid surprises at critical moments. Overall, this feature enhances convenience, especially for commuters and families.

I know a bit about cars. The fourth button on the Hongqi H5 key fob is for remote engine start. When pressed, the key sends a signal to the system, which checks that the doors are locked before starting the engine for 10 minutes and then automatically shutting it off to prevent misuse. Technically, it uses radio frequency (RF), similar to Tesla's functionality but more affordable. The benefits include avoiding cold-start wear on the and better temperature management for smoother engine operation. The effective range is within 20 meters—don't exceed it. Before use, ensure you're not in an enclosed space to prevent exhaust buildup and poisoning. It can also integrate with an app to set temperatures, but if the network is poor, you'll have to rely on the physical button. This design reflects Hongqi's upgrades—highly intelligent yet simple and user-friendly.

The fourth button on the Hongqi H5 key is for remote engine start. Safety precautions must be noted: use only in open outdoor areas, as indoor use is highly dangerous; ensure the car is in Park (P) gear to prevent rolling; keep the key in your pocket to avoid accidental presses and drain; check that windows are closed before starting on rainy days to prevent water ingress. I make it a habit not to exceed 5 minutes after starting to save fuel, and to test the button response during regular maintenance. This feature is quite convenient, but safety awareness comes first.

Just bought a Hongqi H5 recently and was curious about the fourth button on the key—turns out it's a magical remote engine starter! At minus five degrees in winter, just press it and the car will be preheated in five minutes, no more shivering when getting in. Tried starting the AC before leaving work in summer—much cooler. You can operate it remotely as long as the key is in hand, with an effective range of 15 meters in the garage. New car features are fresh and easy to get used to, but be careful not to accidentally press it in your pocket and waste . New drivers should try it out—it's totally worth it.

Compared to my old car, the fourth button on the Hongqi H5 key fob is the remote start function, which can be activated with just one press, while European and American cars require complicated button combinations. This feature preheats the engine in winter, doubling the comfort of a warm interior. The new H5 models are equipped with this feature, though there may be slight differences from older versions, but overall they are similar. When using it, maintain the distance to avoid exceeding the limit and causing failure. It can be combined with the app for adjustments, but the physical button is faster. Experience shows that this feature is more stable and practical in domestic cars.


