
The steps to upgrade the OTA for the 2021 Buick Excelle are as follows: 1. Click on the vehicle settings, then enter the system to check if there is a new version update for the vehicle system; 2. Then click the "Update" button, and after the update file is downloaded, click "Install"; 3. The installation process takes about 10 minutes. Do not turn off the engine or power during installation. Once the installation is complete, the infotainment system will be updated. Relevant information about automotive OTA upgrades is as follows: 1. Automotive OTA upgrades are similar to Windows system upgrades for computers or mobile phone system upgrades. Each upgrade can bring improvements, bug fixes, or additional features, performance enhancements, or visual improvements. 2. This type of update involves online detection after connecting to the internet, version matching, downloading new code to the local device, and then executing the installation and verification processes.

My own car is also a 2021 Buick Excelle, and I recently performed an OTA update myself—it was quite convenient. You just need to tap 'Settings' on the central control screen, scroll down to find the 'System' or 'Software Update' section, and there's a 'Check for Updates' button. Make sure your car is connected to the internet, either via the built-in 4G or your phone's hotspot. After tapping, the system will automatically check for new versions. If available, just follow the prompts to download and install step by step. However, be careful! Do not turn off the engine or cut the power during the update—it takes about 20-30 minutes, roughly the time to watch a few short videos on your phone. If the process is interrupted midway, issues may arise. If you really can't manage it, just drive to a 4S店—they can handle it in minutes using their computer.

Tried upgrading the infotainment system in my family's Excelle. It's a bit more complicated than updating a smartphone but not too difficult. The key is ensuring a stable internet connection for the car's system - weak signals like in underground parking lots definitely won't work. First, drive for about ten minutes to let the system warm up, then find the 'System Update' option in the center console menu. The waiting time was longer than I initially expected - once it took nearly 40 minutes, so I recommend doing it when you're not in a hurry to use the car. Nowadays during maintenance, technicians will routinely check for updates for you. On my recent visit, they updated the transmission logic at the dealership, and I noticed slightly smoother gear shifts. A reminder: older car systems have limited memory, so it's best to delete unused offline maps before upgrading to avoid potential freezing issues.

A friend who runs an auto repair shop often helps people with this. He said the OTA updates for the 2021 Buick Excelle are mainly found in the 'Vehicle Settings' menu, but many owners can't find it because they haven't enabled network permissions. You need to first turn on the car's WiFi or mobile data in the 'Connection Settings,' which is as simple as pairing a phone. During the upgrade process, the battery must have enough power, and it's best to start the engine. He's seen cases where people tried upgrading using only ACC power, resulting in insufficient power and bricking the system, eventually requiring a tow back to the shop. Nowadays, the frequency of new updates being pushed has decreased, so he recommends manually checking for updates once a month, especially for map data updates to avoid navigation errors.


