
GL8 time adjustment method: Press and hold the time adjustment button HR, then briefly press the button to adjust after the time starts flashing. To set the time or date, follow these steps: 1. Select Settings, then choose Time and Date. Some models allow you to select either time or date in the settings menu. 2. To set the time, tap on Time on the screen, then set the hour and minute. You can also choose between 12-hour or 24-hour format. 3. To set the date, tap on Date on the screen, then set the year, month, and day.

A couple of days ago, I helped my neighbor adjust the time on his old GL8. The 2015 models have several different scenarios. For his version without a large screen, you need to locate the clock button on the instrument panel—hold the 'H' button to adjust the hours, watching the digits change one hour per press. Then, long-press the 'M' button to adjust the minutes, which changes in finer increments. Make sure the key is turned to the ignition-on position (but don’t start the engine), and after adjusting, wait about ten seconds for it to save. If your car has a small radio screen, press the SOURCE button to switch to the settings menu—finding the clock option with the knob can be tricky. Older cars respond slowly, so don’t rush when pressing buttons; pressing too hard might cause them to stick.

My 15-year-old GL8 in the 'Fat Head Fish' version has a touchscreen infotainment system, but adjusting the time requires physical buttons. Behind the steering wheel on the left side of the steering column, there's a small clock icon button. Press and hold it for three seconds until you hear a beep, and the dashboard clock will start flashing. Then, use the small black lever at the lower right corner of the dashboard to adjust the hours—this lever normally toggles the odometer, and you’ll need to press it over twenty times just to switch from AM to PM. For minutes, you have to wait until the hours are set correctly, then press the lever to confirm and switch modes. The most frustrating part is that the time resets automatically if the is disconnected, forcing you to readjust everything. If you have the top-trim model with navigation, accessing the time settings through the vehicle settings menu is much simpler.

Just dealt with this issue last week. On the base model GL8's instrument cluster, there's a small plastic hole. Insert a ballpoint pen and you'll feel a micro switch - when pressed, the time digits will blink. Then use the 'H' arrow button on the left side of the AC panel to adjust hours. For premium models with color screens, navigate through three-level system settings: tap the settings icon on the main interface, enter vehicle personalization, and find clock calibration. Note: turn on the ignition but don't press brake to start. Older Buicks respond slowly after power loss - drove about 1km before changes were successfully saved.

This is something many car owners struggle with at repair shops. Actually, look at the AC control panel - there's a physical button with a clock icon on the left side. Press it for 3 seconds to enter setting mode, then use the air volume adjustment knob to set the hours by rotating it (one full rotation adjusts 12 hours - quite an odd design). For minutes, you'll need to press the middle defroster button to switch modes first. Some models even allow time adjustment via steering wheel buttons - press the voice recognition button and say 'set time', though older cars' voice recognition gets it wrong 80% of the time. Better consult the manual to be sure.

For the 2015 classic version your friend bought, here's how to do it: First turn off the radio, locate the two clock buttons with triangular arrows below the CD player, hold both simultaneously for five seconds until the dashboard time flashes. The left arrow button with a small dot on top adjusts minutes, while the right one adjusts hours. Each press of the minute button increases by ten minutes - this design is truly maddening. If the time automatically resets after adjustment, it's likely due to poor contact of the dashboard fuse in the fuse box, requiring removal of the lower steering wheel trim panel to fix. Newer models have a hidden backup setting button in the glovebox, but this feature isn't available in older versions.


