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What does the Buick fault code code68 mean?

4 Answers
VanFinn
08/27/25 6:29am

code68 Buick fault code means service-powering-steeting, which is the driving steering service, caused by battery issues. It could be that the battery needs replacement, or there is corrosion at the battery terminals leading to poor connection. The lifespan of a car battery is typically around 3-4 years, or 35,000 kilometers. Here is some additional information: 1. Battery maintenance: Maintaining good driving habits can extend the battery's lifespan. Avoid using electronic devices in the car for extended periods when the engine is not running. In winter, try to park the car in a garage or parking lot overnight, as low outdoor temperatures can reduce the battery's lifespan if the car is left outside for long periods. If the car is not used for an extended time, disconnect the battery's negative terminal to prevent battery drain. Keeping the battery in a drained state for long periods can also shorten its lifespan. 2. Buick models: Buick offers a range of well-known models, including the Buick Excelle, Buick Yinglang, Buick Verano, Buick Envision, Buick Regal, Buick LaCrosse, Buick Encore, Buick Encore GX, Buick Enclave, Buick Enclave S, Buick Enclave Plus, Buick Enclave Flagship, Buick GL6, Buick GL8 Land Business Class, GL8 ES Land Esteem, Velite 6, Velite 7, and the premium sub-brand Avenir.

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LeJason
09/09/25 5:22am

Code 68 on a Buick usually refers to the P0688 fault code, which indicates an issue with the power relay control circuit of the engine control module. I've encountered a similar situation before—simply put, it means the car's 'brain' isn't getting power, which can easily lead to the vehicle failing to start or stalling while driving, which is quite dangerous. Possible causes include a burnt-out relay, a short circuit, or a loose connector. Once, my Buick acted up like this, and after inspection, it turned out to be a faulty small relay. Replacing it fixed the issue immediately. My advice is not to wait—when this light comes on, first use a diagnostic tool to read the code, confirm the problem, then check the relay box and fuses. If necessary, visit a repair shop to replace the faulty part. If left untreated, the battery may drain quickly, or the car might even break down completely.

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LaJanelle
10/23/25 6:13am

For Buick vehicles, the code68 fault code commonly indicates a power relay issue. Let me analyze it: Essentially, it's a failure in the computer's power supply, which may cause the engine to stall or be difficult to start. I always pay attention to these signals when driving, because ignoring them can easily lead to a breakdown on the road. There are roughly three main causes: relay aging, damaged wiring, or a defect in the control unit. The solution is simple—first locate the relay box, remove the old relay, and try a new one; it's cheap and effective. If that doesn't work, you'll need to inspect the circuit and use a multimeter to test the wiring. Try to minimize long-distance travel before it's fixed. I've dealt with this issue several times, and replacing the relay costs at most fifty bucks.

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AmyLynn
12/06/25 6:36am

Code 68 is a common fault code on Buick vehicles, which I have personally experienced. That time when I was driving out, the engine light suddenly came on, and the diagnostic tool displayed this code—indicating a broken relay circuit in the computer module, causing difficulty in starting the car. The main causes are usually a burnt-out relay or poor contact in the connector. The solution is to replace the relay or tighten the wiring harness. After the repair, everything returned to normal. If left unrepaired, the risks are significant.

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