Buick Envision Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Buick Envision and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Buick Envision cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a Buick Envision cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

Troubleshooting Cruise Control Issues in a Buick Envision

When troubleshooting cruise control issues in your Buick Envision, begin by checking the most accessible components. Start with the fuses related to the cruise control system, as a blown fuse can easily disrupt functionality. Next, inspect the brake pedal switch; if this switch is defective, it can prevent the cruise control from engaging. After these initial checks, examine the throttle position sensor and throttle body for any signs of malfunction, as these components are crucial for proper throttle actuation. If the basics check out, utilize a diagnostic scanner to identify any error codes that may indicate deeper issues, such as problems with the control module or speed sensor. Additionally, keep an eye out for any engine-related issues, including a check engine light, as these can also impact cruise control performance. By following this structured approach, you can effectively diagnose and resolve cruise control problems, ensuring a smoother driving experience.

What Could Cause the Cruise Control to Malfunction in a Buick Envision?

When dealing with cruise control malfunctions in a Buick Envision, it's essential to understand the various common problems that could be at fault. One of the primary culprits is often a failed control module, sensor, or switch, which can disrupt the system's functionality. Additionally, issues with the throttle actuation, particularly a faulty throttle position sensor, may cause the engine's computer to overcompensate, potentially leading to black exhaust emissions. It's also important to check for blown fuses within the cruise control system or a defective brake pedal switch, as these can directly impact the system's operation. Other factors to consider include problems with the throttle control system, the anti-lock braking system (ABS), or even a broken vacuum line in older models. Furthermore, a malfunctioning brake light or a bad brake switch can prevent the cruise control from engaging, while engine-related issues, such as a check engine light, may also play a role. By systematically identifying and addressing these issues, DIYers can effectively troubleshoot and resolve cruise control problems, ensuring a smoother driving experience. Regular maintenance checks and prompt attention to these potential issues are key to keeping the cruise control feature in optimal working condition.

Why is the Cruise Control Not Working in a Buick Envision?

When the cruise control in your Buick Envision malfunctions, it’s crucial to address the issue without delay. Ignoring symptoms such as unresponsive controls or erratic speed maintenance can lead to unsafe driving conditions, particularly on long trips where consistent speed is essential for fuel efficiency and comfort. A failed control module, faulty sensors, or a blown fuse can not only disrupt your driving experience but may also indicate deeper electrical or mechanical problems that could escalate if left unchecked. Additionally, issues with the brake pedal switch or throttle control system can pose significant safety risks, as they may prevent the cruise control from disengaging when necessary. Furthermore, if your vehicle is equipped with Adaptive Cruise Control, obstructions in the forward-looking camera or radar sensors can impair functionality, making it vital to ensure these components are clear and operational. By promptly diagnosing and resolving these issues, you not only enhance your driving safety but also prevent potential damage to your vehicle’s systems, ensuring a smoother and more reliable driving experience.

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