If you own a 2018 GMC Terrain, you may have noticed a feature called Rear Brake Service Mode.
This is a special function that allows you to retract the electronic parking brake (EPB) when you need to replace the rear brake pads or rotors.
But how do you activate and deactivate this mode?
And what are the benefits and risks of using it?
In this article, we will explain everything you need to know about the 2018 GMC Terrain Rear Brake Service Mode, and how to use it safely and effectively.
What Is Gmc Terrain Mode?
GMC Terrain Mode is a feature that allows you to adjust your vehicle’s performance and handling for different off-road conditions. It is available on some GMC models, such as the 2018 GMC Terrain, the 2022 GMC HUMMER EV, and others.
With Terrain Mode, you can use one-pedal driving to control both acceleration and braking with a single pedal, which simplifies the off-roading experience and gives you more precise control. Terrain Mode also optimizes your vehicle’s shift mapping, traction control, and automatic braking to enhance your off-roading capability, safety, and enjoyment.
How Do You Put A 2018 Gmc Terrain In Service Mode?
To put a 2018 GMC Terrain in service mode, you need to follow these steps:
- Turn the ignition switch to the ON/RUN position with the engine off.
- Place the automatic transmission in PARK or the manual transmission in NEUTRAL, as equipped.
- Apply and hold the brake pedal. The brake pedal must remain applied throughout the parking brake cable tension release process.
- Press and hold the EPB switch in the RELEASE position until the EPB status light goes off. This may take up to 15 seconds.
- Release the EPB switch and the brake pedal.
- The EPB is now in service mode and the rear brake calipers can be retracted manually.
To exit the service mode, you need to follow these steps:
- Apply and hold the brake pedal.
- Press and hold the EPB switch in the APPLY position until the EPB status light comes on. This may take up to 15 seconds.
- Release the EPB switch and the brake pedal.
- The EPB is now out of service mode and the rear brake calipers are applied automatically.
How Do You Put An Electronic Parking Brake In Service Mode Gmc?
There are different ways to put an electronic parking brake (EPB) in service mode for different GMC models. For a 2018 GMC Terrain, you can follow the steps that we explained in my previous response. For a 2019-2022 GMC Sierra or other GM trucks with EPB, you can watch this video that shows how to activate and deactivate the brake service mode. For other GMC models, you can check the owner’s manual or this website which provides some general instructions on how to put an EPB in service mode.
How Do You Turn Off The Brake Assist On A GMC Terrain?
The brake assist on a GMC Terrain is a feature that helps you apply the optimal amount of braking force in an emergency. It is part of the anti-lock brake system (ABS) and the stability control system (StabiliTrak).
You cannot turn off the brake assist feature separately, but you can disable the ABS and StabiliTrak by pressing and holding the Traction Control/StabiliTrak button on the instrument panel for five seconds. However, this is not recommended, as it may reduce your vehicle’s safety and performance.
How Is The Rear Automatic Braking System Activated?
The rear automatic braking system is a feature that helps you avoid or reduce the impact of collisions with objects or vehicles behind you when you are reversing. It uses sensors and cameras to detect potential obstacles and warn you or apply the brakes automatically if needed.
The rear automatic braking system is activated when you shift the gear to reverse and the vehicle is moving at a low speed. Depending on the make and model of your vehicle, you may see a symbol or a message on the instrument panel or the rearview camera screen indicating that the system is active.
What Type Of Battery Does A 2018 Gmc Terrain Take?
The type of battery your 2018 GMC Terrain takes depends on a few factors:
Engine Variant
- 2.0L Turbocharged Gas Engine: Requires a BCI Group Size 48 battery with a minimum of 760 Cold Cranking Amps (CCA). OEM equivalent is typically an H6-size battery.
- 1.5L Gas Engine: Might require a slightly smaller battery, possibly a BCI Group Size 47 with 650-730 CCA, depending on specific trim level.
Start-Stop System
- If equipped with Start-Stop technology: You’ll need a specific AGM (Absorbent Glass Mat) battery designed for this function. These have higher CCA and reserve capacity to handle frequent engine restarts.
Here are some options for your 2018 GMC Terrain battery
- OEM Equivalent: BCI Group Size 48, 760 CCA H6 AGM battery (e.g., ACDelco AGM Battery).
- Aftermarket Option: Duralast Platinum AGM Battery BCI Group Size 48, 760 CCA H6-AGM (AutoZone).
- Alternate Fit (higher CCA): Optima YellowTop AGM Battery BCI Group Size 48, 800 CCA DH6 (higher performance, may vary in price and fit).
Where Is The 2018 Gmc Terrain Made?
The 2018 GMC Terrain was not made in Canada as the previous models were. Instead, it was manufactured in Mexico at the San Luis Potosí Assembly plant located in San Luis Potosi. This shift in production occurred starting with the 2018 model year.
Also Read: What Are The GMC Terrain 2011 Problems? A Complete Guide!
How Long Does A 2018 Gmc Terrain Battery Last?
The average lifespan of a 2018 GMC Terrain battery is between 3 and 5 years, but several factors can influence this timeframe:
Battery Type
- Standard Lead-Acid: 3-4 years lifespan.
- AGM (Absorbent Glass Mat): 4-5 years lifespan (commonly used in Start-Stop models).
Driving Habits
- Short, frequent trips: Increased battery strain due to more frequent starts and stops.
- Long, highway drives: Allow battery to fully recharge, potentially extending lifespan.
Climate
- Extreme temperatures (hot or cold): Can accelerate battery degradation.
- Moderate temperatures: Less stress on the battery, contributing to a longer lifespan.
Electrical Demands
- Frequent accessory use (heated seats, audio system): Increases battery drain.
- Limited accessory use: Less strain on the battery.
Maintenance
- Regular battery cleaning and inspection: Identifies potential issues early and extends lifespan.
- Ignoring warning signs: This can lead to premature battery failure.
How Do You Auto Start A Gmc Terrain 2018?
There are two ways to auto-start a 2018 GMC Terrain:
1. Using the Key Fob
Make sure
- Your Terrain is in a park with the parking brake engaged.
- All doors and windows are closed.
- The key fob is within range (typically around 30 feet).
Steps
- Press the lock button once.
- Immediately press and hold the remote start button (a circular arrow symbol) for 4 seconds.
- The turn signals will flash twice to confirm a successful remote start.
- The engine will run for 20 minutes unless you:
- Stop the remote start by pressing the lock button three times.
- Enter the vehicle and press the brake pedal and the start button.
2. Using the myGMC Mobile App (if equipped)
Requirements
- An active Remote Access Plan or Unlimited Access Plan subscription.
- The myGMC mobile app is downloaded and installed on your smartphone.
- Bluetooth connection between your phone and the vehicle.
Steps
- Open the myGMC app and log in.
- Select your GMC Terrain.
- Tap the “Remote Commands” or “Key Fob” button.
- Press and hold the “Remote Start” button on the app screen until the engine starts.
- The engine will run for 20 minutes unless you:
- Stop the remote start by tapping the “Stop Remote Start” button in the app.
- Enter the vehicle and press the brake pedal and the start button.
Why Is My Gmc Battery Draining So Fast?
Common Causes
- Parasitic drain: This occurs when an electrical component stays on even when the car is turned off, slowly draining the battery. Common culprits include interior lights, glove box lights, trunk lights, aftermarket accessories, or faulty modules.
- Faulty battery: Batteries have a lifespan, and as they age, they lose their ability to hold a charge. If your battery is over 3-5 years old, it might be nearing the end of its life.
- Extreme temperatures: Both hot and cold weather can stress the battery and shorten its lifespan.
- Faulty alternator: The alternator is responsible for charging the battery while the engine is running. If it’s not functioning properly, the battery won’t get fully charged and will drain faster.
- Short trips: Short, frequent trips don’t give the alternator enough time to fully charge the battery.
- Internal electrical fault: Less common, but possible, is an internal issue within the electrical system causing a continuous drain.
Troubleshooting Steps
- Check for parasitic drain: With the car off, use a multimeter to measure the current drawn from the battery. If it’s above 50mA, there’s likely a parasitic drain. Start by removing fuses one by one to see which one stops the drain.
- Test the battery: Most auto parts stores offer free battery testing. This will tell you if the battery is still healthy or needs replacement.
- Check the alternator: A mechanic can test the alternator’s output voltage to see if it’s charging the battery properly.
- Review your driving habits: If you take mostly short trips, try taking a longer drive occasionally to allow the battery to fully charge.
- Consult your owner’s manual: It might offer specific troubleshooting tips for your GMC model and year.
Important: 2015 GMC Yukon Transmission Problems: How To Diagnose & Fix Them!
How Far Can A Gmc Terrain Go On Full Tank?
2018 GMC Terrain Fuel Economy and Range
- EPA Combined Range: Up to 499 miles (2.0L Turbo Diesel engine with AWD)
- Model-specific combined MPG:
- 2.0L Turbo Gas: 23 MPG (AWD), 24 MPG (FWD)
- 1.5L Gas: 26 MPG (AWD), 28 MPG (FWD)
- 1.6L Diesel: 32 MPG (AWD)
- Fuel Tank Capacity: 15.6 gallons
To calculate your estimated range
- Check your owner’s manual for the exact fuel tank capacity and EPA combined MPG for your specific model year and engine variant.
- Multiply the fuel tank capacity by your combined MPG: Range = Fuel Tank Capacity (gallons) x MPG
- This will give you an estimated range under ideal conditions. Remember, the actual range may vary depending on the factors mentioned earlier.
How Long Do Gmc Terrain Engines Last?
The longevity of a GMC Terrain engine depends on several factors, making it difficult to give a one-size-fits-all answer. However, here’s some information to help you estimate:
Average Lifespan
- On average, with proper maintenance, a GMC Terrain engine can last between 200,000 to 300,000 miles.
- Some owners report reaching even higher mileage, exceeding 350,000 miles with meticulous care.
Factors Affecting Engine Lifespan
- Maintenance: Regular oil changes, scheduled service intervals, and using high-quality fluids are crucial for engine longevity.
- Driving Habits: Avoiding aggressive driving, excessive idling, and overloading your vehicle reduces engine wear and tear.
- Model Year and Engine Type: Earlier models might have had reported issues, while newer ones often benefit from improvements and better reliability. Specific engine types can also vary in terms of durability.
- Environment: Extreme temperatures and dusty conditions can stress the engine, potentially impacting its lifespan.
Specific Model Examples
- 2018 GMC Terrain: This year’s model’s 2.0L turbo engine received mixed reviews regarding reliability, while the 1.5L gas engine had better ratings.
- 2023 GMC Terrain: Early reports suggest promising reliability for both the 1.5L and 2.0L turbo engines.
How Do I Reset My Gmc Terrain Intellilink?
There are two ways to reset your GMC Terrain Intellilink system depending on what you want to achieve:
1. Restore Vehicle Settings
This option resets all system settings to their factory defaults, including:
- Radio stations, saved addresses, phone pairing, Bluetooth connections, etc.
- System settings like language, time zone, display themes, etc.
Here’s how to do it
- Go to the IntelliLink home screen.
- Select “Settings” (gear icon).
- Scroll down and choose “Return to Factory Settings”.
- You’ll be presented with three options:
- Restore Vehicle Settings: This is the option you want if you want to reset everything.
- Clear All Private Data: This completely erases all your data from the system.
- Restore Radio Settings: This resets only the radio settings.
- Select “Restore Vehicle Settings”.
- Confirm your choice and the system will reset.
2. Update Software
Updating the software can often fix bugs and improve overall system performance.
Here’s how to do it
- Go to the IntelliLink home screen.
- Select “Settings” (gear icon).
- Scroll down and choose “System”.
- Select “Software”.
- Check for updates and follow the on-screen instructions.
How Do You Turn Off Auto Stop On A 2018 GMC Terrain Sle?
Disabling the auto stop/start feature in your 2018 GMC Terrain SLE is quite straightforward. Here are two ways to do it:
Method 1: Using the physical button
- Locate the Auto Stop button on your center console. It typically has the symbol of a car with an “A” inside a circle.
- Press the button once. The button will illuminate when the auto-stop feature is disabled.
- To re-enable the auto-stop feature, simply press the button again. The light will turn off.
Method 2: Using the touch screen (if equipped)
- On your vehicle’s touch screen, access the Settings menu (usually represented by a gear icon).
- Navigate to the Vehicle or Driver Preferences section.
- Look for the Auto Stop/Start option and toggle it off.
- To re-enable the auto-stop feature, follow the same steps and toggle it back on.
2018 Gmc Terrain Rear Brake Pad Replacement
Safety First
Replacing brake pads involves working with critical safety components. It’s essential to prioritize safety and consider your experience level before attempting this yourself. If you’re not comfortable with DIY repairs or lack the necessary tools and knowledge, I strongly recommend seeking help from a qualified mechanic.
Information Gathering
- Consult your owner’s manual: It will provide specific instructions and torque specifications for your exact model and trim.
- Online resources: Reputable websites and video tutorials can offer visual guides and helpful tips for brake pad replacement. However, ensure they align with your specific vehicle and exercise caution.
- Professional guidance: Contact a trusted mechanic or GMC dealership for advice and service options. They have the expertise and tools to ensure the job is done safely and correctly.
General Steps (for informational purposes only)
- Gather necessary tools: Jack, jack stands, lug wrench, socket wrench set, torque wrench, C-clamp (optional), brake cleaner, new brake pads, etc.
- Safely raise the vehicle: Securely engage the parking brake and use the jack and jack stands to raise the rear of the vehicle.
- Remove the wheel: Loosen the lug nuts slightly before raising the vehicle. Once raised, remove the lug nuts and wheel.
- Remove the caliper bracket: This may require removing one or two bolts/pins. Be cautious not to damage the brake line or caliper piston.
- Compress the caliper piston: Use a C-clamp (optional) or specialized tool to compress the piston to create space for new pads.
- Replace the brake pads: Remove the old pads, clean the caliper bracket, and install the new pads according to the manual’s instructions.
- Reassemble the caliper bracket and wheel: Ensure proper torque specifications are met when tightening bolts and lug nuts.
- Repeat for the other rear wheel.
- Test the brakes: Pump the brake pedal several times with the engine off to ensure proper pressure and function before driving.
Conclusion
We have learned what the 2018 GMC Terrain Rear Brake Service Mode is, and how to use it properly.
This feature is designed to help you retract the electronic parking brake (EPB) when you need to service the rear brakes.
It is important to follow the correct steps to activate and deactivate this mode, as well as to check the brake fluid level and the EPB status light after the service.
By doing so, you can ensure the safety and performance of your vehicle.
We hope this article has been informative and helpful for you.
Thank you for reading and remember to keep your 2018 GMC Terrain in good shape.
