How to Start the Changan CS75 When the Key Fob Battery is Dead?

[MacVivian]

Place the smart key flat on the start switch in close contact. Once the start switch indicator turns green, press the start switch, and the engine will start normally. Place the smart key flat on the start switch in close contact, then press the start switch to cycle through the modes in the order of ACC-ON-OFF.

[DiDonovan]

I recently encountered the issue of my CS75 key fob running out of battery, which was quite annoying but had a simple solution. There's a small mechanical key hidden inside the key fob—I pulled it out to unlock and enter the car. Once inside, don't randomly press the start button; instead, place the entire key fob near the designated sensing area—usually located below the steering wheel or around the cup holder—then press the button to start the engine. After that, head to a repair shop immediately to replace the battery to avoid any inconvenience from a completely drained battery. It's good practice to check the battery voltage every year or so and keep a spare key in the car for emergencies, ensuring peace of mind even when heading out at night. Most key malfunctions are due to low battery or dirt buildup; cleaning the contact points can provide a temporary fix. Just like people, cars need regular maintenance to stay reliable.

[RhettAnn]

From a repair perspective, the CS75's smart key losing power won't prevent engine starting because the system has backup induction functionality. For the specific procedure: First use the hidden mechanical key portion to unlock the door (insert into the lock cylinder carefully to avoid damage), then locate the start button area inside the vehicle. Most models require placing the key in a specific position like near the steering column - press firmly for 2 seconds before pushing the start button to activate the engine. This works because the low-power wireless communication continues functioning without battery power. While useful in emergencies, prolonged use strains key components, so we recommend replacing the battery every 2 years and testing functionality. The vehicle manual specifies backup starting locations - check these in advance. Battery replacement is straightforward: pry open the fob cover, install a correctly sized coin cell (CR2032 typically), and reassemble.

[Alyssa]

When I first bought my car, I panicked when the key fob ran out of battery, but the solution turned out to be simple: there's a small button on the key fob—press it to pull out the mechanical key and unlock the door, easily getting inside. Then, sit in the driver's seat, press and hold the key fob directly against the start button without moving, and press the button within three seconds to start the car. This incident reminded me that key fob batteries have a limited lifespan, and replacing them costs just a few dollars to prevent issues. While driving, be careful not to expose the key fob to water or high temperatures, as it drains the battery faster.