What does Buick Excelle code128 mean?

[DiJosie]

Excelle code128: It means the engine hood is not closed tightly. Simply close the hood properly. If it cannot be closed, possible causes include the hood release cable not retracting, deformation of the hood lock, loose lock mechanism screws causing the lock to lower, lock mechanism displacement, or broken latch, etc. It is recommended to visit a 4S store for inspection and repair as soon as possible. Below are relevant details about the Excelle: 1. Exterior: The new Excelle follows Buick's "dynamic and fluid" design language, drawing inspiration from the classic elements of the Riviera concept car. It features a new winged chrome grille, winged LED automatic sensing headlights, winged LED taillights, dual peak character lines on the body, large-view exterior rearview mirrors, and 16-inch dual five-spoke luxury two-tone aluminum alloy wheels. 2. Interior: The new Excelle's cabin continues Buick's 360-degree wraparound integrated design, complemented by high-touch interior materials and Quiet-Tuning, Buick's patented noise reduction technology. It comes with a three-spoke multifunction steering wheel, ice-blue sporty instrument panel, fully automatic air conditioning system, one-touch start function, rear air conditioning vents, and a flexible 400L luggage compartment.

[ArielLee]

As a Buick Excelle owner, after driving for so many years, the moment code 128 pops up, I know it's the cooling system sounding the alarm, indicating the temperature just won't rise—classic thermostat stuck open. It could be a coolant leak or a faulty sensor. If your engine light comes on while driving and the temperature gauge shows low, pull over immediately to check. Don't push it, or you might end up with a frozen engine. I remember last winter, my car showed this same code. A quick trip to the shop for a new thermostat fixed it—didn't cost much but saved a ton of hassle. Keep an eye on coolant levels and aging, and stick to regular maintenance to prevent this pesky issue.

[EmmaDella]

As someone who frequently works with cars, a code 128 on a Buick Excelle is nothing unusual—it's just a trouble code indicating the coolant temperature hasn't reached the required level. Most of the time, the thermostat fails to close when it should, staying open and making cold starts difficult for the engine, especially noticeable in winter. The causes can vary, such as loose sensor wiring or accumulated coolant contamination. It's best to immediately use a diagnostic tool to check and confirm the code. I've seen several cases in the garage where owners ignored it, leading to a sharp increase in fuel consumption and making repairs time-consuming and labor-intensive. My advice is to start with the simple fixes first, like trying to top up the coolant yourself. If that doesn't work, head to a professional shop—don't delay for safety's sake.

[Ann]

My Buick Excelle previously showed code 128, and after checking, I found out it was an engine temperature issue, indicating a problem with the coolant system, possibly due to a failed thermostat or a circuit leak. The first time I encountered this, I panicked and flipped through the manual, only to realize that parts had to be replaced immediately—it couldn't wait. Other potential causes include electrical circuit failures, which require diagnostic tools to identify. It's best to take it to a 4S shop for repairs right away. Also, regularly check if the coolant reservoir is clean to prevent issues before they arise.

[VanSienna]

I've been into cars for years, and the code 128 in the Buick Excelle actually indicates a cooling temperature control alarm, meaning the temperature is consistently below normal values. The main causes are thermostat wear or sensor failure. When this code appears, the car experiences weak acceleration and slow cold starts. I've tried DIY diagnostics: checking if the coolant color is cloudy and looking for leaks in the pipes. Simple DIY fixes include changing the coolant or resetting the system, but if the issue frequently reappears, it's safer to consult a professional to prevent minor problems from escalating. Regular radiator cleaning can also help avoid this issue.