2005 Subaru Impreza Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2005 Subaru Impreza and How to Fix Them

Find Repair Location

Reviewed by

Bo Fader

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 2005 Subaru Impreza cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.

Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
Control Module: A faulty control module can result in 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 acceleration and poor engine 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.

What are the best Subaru repair shops?

RepairPal Certified shops can diagnose and repair your 2005 Subaru Impreza electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

What are the steps to diagnose the cruise control issue in a 2005 Subaru Impreza?

To effectively diagnose cruise control issues in your 2005 Subaru Impreza, start by checking the cruise control fuse, as this is a straightforward fix that can often resolve the problem. Refer to your owner's manual for the fuse box diagram to locate the specific fuse associated with the cruise control system. If the fuse is intact, proceed to inspect the control module, sensor, and switch for any visible damage or malfunction, as these components are common culprits in cruise control failures. Additionally, if the check engine light is illuminated, it may indicate an underlying issue that could be affecting the cruise control functionality, so addressing this should be a priority. Next, examine the throttle actuation to ensure it is operating correctly, as any hindrance here can disrupt the cruise control system. If the cruise control light is blinking, this may signal a faulty cruise control switch, which may require professional diagnosis. Don’t forget to check the speed sensor and the steering wheel stick used to activate the cruise control, as these parts must function properly for the system to work. Lastly, inspect the wiring and electrical connections outside the fuse box for any faults that could impact the cruise control system. By following this systematic approach, you can effectively identify and resolve cruise control issues in your vehicle.

What common issues cause cruise control failure in a 2005 Subaru Impreza?

When diagnosing cruise control failure in a 2005 Subaru Impreza, it's crucial to consider several common problems that may be at play. One of the primary culprits is the control module, which can fail and disrupt the entire cruise control system. Additionally, issues with the throttle actuation can prevent the system from maintaining speed, leading to frustrating driving experiences. Another frequent issue is the throttle position sensor, which, if malfunctioning, can cause the engine computer to miscalculate fuel delivery, often resulting in black exhaust emissions. Furthermore, the cruise control switch itself may be defective, leading to either a complete failure of the cruise control feature or a partial loss of functionality. Addressing these issues promptly not only restores the cruise control system but also enhances overall vehicle performance, making it essential for DIY enthusiasts to be aware of these potential problems.

How urgent is it to repair the non-functioning cruise control in a 2005 Subaru Impreza?

When it comes to the non-functioning cruise control in a 2005 Subaru Impreza, it's essential to recognize that while the system enhances driving comfort, its failure does not pose an immediate safety risk. The cruise control is primarily a convenience feature, and its malfunction does not affect the vehicle's overall drivability. Although the flashing cruise control light indicates a mechanical or electrical issue that warrants attention, it does not compromise the vehicle's operational safety. Therefore, while it is advisable to repair the cruise control for a more enjoyable driving experience, the urgency of this repair is low. DIY enthusiasts can take their time to diagnose and fix the issue without the pressure of immediate consequences, allowing for a more relaxed approach to the repair process.

Related 2005 Subaru Impreza Problems

Read about related problems experienced by other Subaru Impreza drivers like you.

Subaru Impreza check engine, skid, and cruise lights issue with potential catalytic converter failure

Some Subaru Impreza owners report experiencing warning lights, such as the check engine, skid, and cruise control lights, which may indicate various issues, including potential catalytic converter failure. These lights can illuminate when the on-board diagnostic system detects problems with the engine or emissions system, and a blinking check engine light often signifies a major issue like engine misfiring that requires immediate attention. Additionally, the cruise control and traction control lights may activate as a response to the check engine light being on. While some owners attempt to reset these warning lights by disconnecting the battery and discharging the system, it is crucial to address the underlying issues causing them. Furthermore, it is common for the cruise control to deactivate when the check engine light is illuminated as a safety precaution. Problems with sensors, such as the rear O2 sensor, can also affect the data sent to the Engine Control Module (ECM), potentially triggering these warning lights. Therefore, it is advisable for owners experiencing these symptoms to have their Subaru Impreza inspected by a mechanic to diagnose the specific issue and prevent further damage or costly repairs.

2 model years affected

Avg Mileage: 1179,016

3 others reported problem

2 comments

Subaru Impreza engine light, road skid light, and cruise light illuminated with stalling issue when not using both feet

Some Subaru Impreza owners report experiencing issues when the engine light, road skid light, and cruise light illuminate simultaneously, often accompanied by stalling when not using both feet. These warning lights may indicate that a check engine code has been stored, which disables the cruise control until the underlying problem is resolved. Additionally, some owners find that bad ignition coils can lead to engine performance issues, triggering the check engine light. Ignoring a consistently illuminated check engine light can result in significant problems and increased repair costs, making it crucial to address these issues promptly. Furthermore, some owners note that higher RPMs can lead to increased fuel consumption, which may not be ideal for long-distance travel. It is advisable for owners experiencing these symptoms to have their vehicle inspected by a qualified mechanic to diagnose and resolve the specific issues to avoid more severe problems in the future.

1 model year affected

Avg Mileage: 1193,304

2 others reported problem

1 comment

See More 2005 Subaru Impreza Problems

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.

Find a Certified ShopThe largest certified network of auto repair shops

Get a Fair Price EstimateHundreds of repair estimates honored nationwide

Check for Safety RecallsUse VIN or license plate to see if your vehicle is affected

Exceptional warranty

Shops offer at least a 12-month or 12,000-mile warranty.

Satisfied customers

We ensure high satisfaction through verified customer reviews.

Transparent pricing

You'll get a Fair Price Guarantee on all RepairPal estimates.

Millions trust us for auto repair — RepairPal Certified^® locations must pass a rigorous approval process to ensure quality, customer satisfaction, and fair pricing.

Find a Repair Location