1999 Chevrolet K2500 Suburban Cruise Control Isn't Working

Fixing Cruise Control Issues in 1999 Chevrolet K2500 Suburban

Find Repair Location
Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 1999 Chevrolet K2500 Suburban 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 1999 Chevrolet K2500 Suburban 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 throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe. There is a strong possibility of engine misfires, and the check engine light will come on.

Throttle position sensors can also develop "dead spots," or certain places along the throttle curve where it doesn't get a reading. When this happens, the above symptoms can occur but then stop when you further press or let off the gas pedal.

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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial steps to diagnose the non-functional cruise control in a 1999 Chevrolet K2500 Suburban?

To effectively diagnose the non-functional cruise control in your 1999 Chevrolet K2500 Suburban, start with the simplest components. Begin by checking the cruise control fuse; a blown fuse can easily disrupt the system's operation. Next, inspect the cruise control switch located on the steering wheel to ensure it is functioning correctly, as a malfunctioning switch can prevent activation. It's also crucial to verify that your brake lights are operational, since a faulty brake light switch can inadvertently disable the cruise control. After these initial checks, examine the vehicle's speed sensors, which are essential for relaying accurate speed information to the cruise control module. Finally, consider scanning the vehicle's onboard computer for any error codes that may indicate specific issues within the cruise control system. By following this structured approach, you can efficiently identify and address the root cause of your cruise control problems.

What are the common problems that could cause the cruise control to stop working in a 1999 Chevrolet K2500 Suburban?

When troubleshooting cruise control issues in a 1999 Chevrolet K2500 Suburban, it's essential to consider several common problems that could be at play. One of the first things to check is the vehicle's fuse box, as a blown fuse can easily disrupt the cruise control system. Additionally, the brake pedal switch is crucial; if it malfunctions, it may prevent the cruise control from engaging since the system is designed to deactivate when the brake is pressed. Another potential culprit is the cruise control module itself, which can fail and require replacement to restore functionality. It's also important to inspect for vacuum leaks within the cruise control system, as these can significantly affect its performance. Lastly, a defective speed sensor can hinder the cruise control's ability to maintain a set speed, leading to operational failures. By systematically examining these areas, you can effectively diagnose and potentially fix the cruise control issues in your Suburban.

How urgent is it to address the non-functioning cruise control in a 1999 Chevrolet K2500 Suburban?

Addressing the non-functioning cruise control in a 1999 Chevrolet K2500 Suburban is crucial for several reasons. First and foremost, safety is a primary concern; a malfunctioning cruise control system can lead to erratic speed changes, increasing the risk of accidents on the road. Additionally, the comfort and convenience that cruise control provides during long drives cannot be overlooked, as it allows drivers to maintain a steady speed without the constant need to press the accelerator, ultimately reducing fatigue. Furthermore, neglecting this issue can adversely affect the vehicle's resale value. A well-maintained vehicle, with all systems functioning properly, is more appealing to potential buyers. Therefore, while it may not seem like an immediate emergency, addressing the non-functioning cruise control promptly is essential for ensuring a safe, comfortable driving experience and preserving the vehicle's overall value.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.