Frequently Asked Questions

What does it mean when the check engine light comes on in a 2018 Chevrolet Colorado?

• It indicates the vehicle's onboard diagnostics have detected an issue. It can range from a loose gas cap to oxygen sensor or catalytic converter issues.
• At Larry H. Miller Chevrolet Murray in Murray, UT, our certified Chevrolet technicians use OEM diagnostic tools to identify the specific trouble codes and explain the repair options clearly.
• Repairing issues early often costs less and preserves fuel economy and long-term engine health; our pricing is competitive and often costs less than independent shops while providing factory-trained service and OEM parts.
• We offer service financing so you can get the necessary repair now and pay over time, protecting your investment and giving immediate peace of mind.
• For fast service, schedule service online or check current service specials before you visit.

How long does a check engine light service take?

• Simple diagnostics can take 30–60 minutes; more complex repairs may require parts ordering and several hours or a day.
• At Larry H. Miller Chevrolet Murray we prioritize quick turnarounds with clear timelines, and we keep you informed throughout the process.
• Our service lane is equipped for efficient diagnostics and repairs, often delivering faster completion times than independent shops because of direct access to OEM parts and factory processes.
• Warrantied repairs must be performed at a certified dealership to remain valid—our technicians are Chevrolet-certified and follow OEM procedures.
• To book a convenient time, schedule appointment online and explore our current service specials.

How much does a check engine light diagnostic cost for a 2018 Chevrolet Colorado?

• Diagnostics vary, but our transparent pricing is competitive; many customers find our dealership pricing and long-term value beat independent shops because of accurate diagnosis and OEM parts.
• We focus on immediate and long-term savings—accurate diagnosis prevents repeat visits, reduces the risk of larger failures, and preserves resale value.
• If repairs are covered under warranty, they must be completed at a certified dealership to maintain coverage; we’ll confirm warranty eligibility during the diagnostic.
• Ask our service advisors about financing options so you can move forward with repairs now and pay later.

What is the most common reason for check engine light on a 2018 Chevrolet Colorado?

• Common causes include loose or faulty gas cap, failing oxygen sensor, misfires, or issues with emissions components.
• Our technicians at Larry H. Miller Chevrolet Murray have experience with the typical failure modes for the 2018 Chevrolet Colorado and will recommend the most cost-effective repair strategy.
• Fixing these problems promptly improves fuel efficiency and prevents catalytic converter damage, saving money over time.
• We recommend checking for current service specials and using our online scheduler to reserve a diagnostic appointment.

What is the first thing to check when the check engine light comes on?

• Start with basic checks: ensure the gas cap is tightened, check battery condition, and note any performance changes or dashboard indicators.
• If the light persists or flashes, bring your 2018 Chevrolet Colorado to Larry H. Miller Chevrolet Murray right away for a professional diagnosis—flashing lights can indicate serious conditions.
• Our dealership provides a clear repair plan, transparent pricing, OEM parts, and warranty-backed service; repairs under warranty must be done at a certified dealer to remain covered.
• Use our schedule service portal to book quickly and review current service specials to maximize savings.

Check Engine Light Flashing

A flashing check engine light on your 2018 Chevrolet Colorado is a serious warning that should not be delayed. Flashing typically indicates active misfires that can allow unburned fuel into the exhaust stream, which risks damaging the catalytic converter and increasing emissions. At Larry H. Miller Chevrolet Murray in Murray, UT, our technicians prioritize immediate assessment to protect your vehicle from costly downstream repairs. We use factory-level scan tools to capture live data, run controlled tests, and identify whether the issue is ignition, fuel delivery, or sensor-related. Customers benefit from faster, more accurate repairs because our parts inventory and service processes are tuned to Chevrolet specifications. We also highlight available promotions—visit our service specials—and offer service financing to help you get essential work done now and pay over time. For urgent concerns call our service department or schedule service online; immediate attention preserves performance and keeps repair costs down over the long run.

2018 Chevrolet Colorado Check Engine Light Reset

Resetting the check engine light on a 2018 Chevrolet Colorado can be simple, but resetting without addressing the root cause risks repeat failures and warranty complications. A true reset follows a complete diagnostic and the appropriate repair—whether that’s replacing a faulty sensor, tightening a gas cap, or repairing an ignition component. At Larry H. Miller Chevrolet Murray we emphasize transparency: our technicians document the diagnostic codes, explain repair options, show OEM parts, and outline warranty coverage. All repairs performed under warranty must be completed at a certified dealership, ensuring your coverage remains intact. Choosing dealership service often delivers better long-term value than quick resets at independent shops because we combine certified expertise, guaranteed parts, and service financing to make repairs affordable. Before you accept a simple reset, contact us to review recommended fixes and current service specials, then schedule appointment with our service team for peace of mind and proven results.

2018 Chevrolet Colorado Check Engine Light Codes

Common codes for the 2018 Chevrolet Colorado include P013x/P014x (oxygen sensor), P030x (cylinder misfire), P0420 (catalyst efficiency), and P045x (evap system leaks). Each code carries potential consequences if ignored: oxygen sensor failure can reduce fuel economy and increase emissions; misfires can damage the catalytic converter; evaporative leaks can cause poor fuel economy and failed emissions tests. At Larry H. Miller Chevrolet Murray in Murray, UT, we diagnose the code, explain the impact, and recommend the most efficient repair path—often saving you money compared with multiple independent attempts to fix the same issue. Our certified technicians use Chevrolet-specific procedures and OEM replacement parts to restore performance and preserve resale value. We also promote customer convenience with online booking, clear cost estimates, and financial options through service financing. Review our service specials and schedule service to secure priority diagnostics from a trusted Chevrolet dealership.