Getting behind the wheel of a GMC truck is a terrific experience, as long as you take the steps to maintain its level of performance. Regular maintenance is a key element of car ownership, but understanding what kind of maintenance your truck needs and when can be difficult for many drivers. Read this article to learn which signs mean that it is time to take your truck in for GMC service.
When your GMC needs service, trust the OEM-certified staff at Groppetti Auto Family’s Visalia GMC.
Understanding Your GMC’s Dashboard Warning Lights
Warning lights are named warning lights for a reason. If any of the dashboard lights stay on, then there is some sort of problem with your truck that needs to be addressed. Don’t wait to schedule a GMC service check. Letting issues linger often leads to more significant (and expensive) repairs later on. There are multiple warning lights on the dashboard that correlate to different systems. Here is a rundown of the most important dashboard warning lights and what they mean:
Common Warning Lights and Their Meanings
Check Engine Light
The check engine light comes on if your truck’s onboard diagnostics have detected a malfunction with the emissions or propulsion system. If you have an electric vehicle, the light may signal problems with charging.
Oil Pressure Warning Light
This warning light indicates that the oil pressure in your vehicle is dangerously low. If the light comes on while you’re driving, pull over as soon as possible and turn the engine off. Check the oil and add more until it is within normal operating range, and restart the vehicle. If the light stays on for more than 10 seconds, turn the truck off and have it towed to avoid major engine damage. Even if the light doesn’t come back on, you should still get your vehicle serviced.
Coolant Temperature Warning Light
This shows that your engine is overheating and needs to be turned off immediately. Overheating is often due to low coolant levels or a malfunctioning thermostat, water pump, or radiator fan. Make arrangements for your vehicle to be towed for service.
Brake System Warning Light
If the brake system warning light comes on and stays on instead of flashing when you turn the truck on, then there are likely problems with your vehicle’s brake pads, ABS, or brake fluid level. Get your truck checked or towed ASAP if this happens.
Battery/Charging System Warning Light
An illuminated light that looks like a battery means that your GMC’s electrical system is flawed. This may cause your truck to not start or run properly. There are several potential reasons for this to happen (failing alternator, corroded connections, a dying battery), so it is important to get a diagnosis from a trained technician promptly.
Listening to Your Truck: Noises That Signal a Need for Maintenance
Strange sounds are another indicator of a truck in need of maintenance and care. Here’s what each noise may signify:
- Rattling – A part has come loose on the underbody of your truck.
- Squealing/Screeching – If you hear any high-pitched squeal when you hit the brakes, then it’s a sign that your brake pads need to be replaced. If this sound turns into a grinding tone, then the brake pads have worn down completely, and other pieces of equipment may require attention.
- Knocking – Knocking sounds usually equal engine-based problems.
- Thudding – A thudding sound typically means there are issues with your tire pressure or alignment.
If you hear any of this while you’re behind the wheel, get your truck inspected at the nearest Visalia GMC dealership.
Performance Issues: When to Schedule GMC Maintenance
If you notice your truck driving differently than usual in the following ways, then your vehicle needs a round of maintenance:
- Vibrations- The feeling of vibrations through your steering wheel or pedals while driving could be a sign of underlying issues with your tires, brakes, or suspension system.
- Decrease in Power – If you feel that your truck is less responsive or isn’t as fuel-efficient as it should be, then it is time to get your vehicle serviced. It could be a minor issue like tire pressure or something more serious.
- Struggle to Shift Gears – If your truck has a manual transmission, unexpected difficulty shifting gears could be a sign of a faulty clutch system.
- Fluid leaks – Fluid leaks could arise from your engine, brakes, or transmission and should be inspected as soon as they arise.
- Difficulty Slowing Down/Braking – If you’re truck is having problems slowing into turns or braking, it may be a sign that the braking systems are in disrepair or your tires have worn out and need to be replaced.
The Importance of Quick Action and Preventive Maintenance
If any of the warning signs apply to your current situation, then you must get your truck serviced before any issues snowball and force you to spend more time and money getting your car fixed when immediate intervention could get you back on the road with minimal fuss. But even if your car appears to be working as intended, there’s still plenty of value in scheduling a GMC service check. This gives you the peace of mind of knowing your truck is in good condition, letting you go about your daily activities with more confidence. Preventive maintenance also allows you to catch any minor malfunctions before they begin to impact your driving experience.
Schedule Your GMC Maintenance Check at Visalia GMC
At Visalia GMC, we understand how important it is for every driver to trust that their car will move as intended at all times. Our GMC service team has the passion and knowledge to help visitors keep their truck in good condition with detailed checkups and repairs. If you’re interested in scheduling a maintenance check or have any other questions you want to ask, please contact us today.
GMC Maintenance Warning Signs FAQ
What are the most important dashboard warning lights to watch for?
Key warning lights include the check engine, oil pressure, coolant temperature, brake system, and battery/charging system lights. If any stay on, schedule service quickly to avoid bigger repairs.
What noises indicate my GMC needs maintenance?
Rattling may mean loose parts, squealing signals worn brake pads, knocking often points to engine issues, and thudding may indicate tire or alignment problems.
What performance changes should make me schedule GMC service?
Vibrations, reduced power or fuel efficiency, trouble shifting gears, fluid leaks, or difficulty braking are all signs that your truck needs attention.
Why is quick action and preventive maintenance important?
Addressing issues early prevents costly damage and keeps your GMC running safely. Regular checkups also catch small problems before they affect performance.
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