How to Turn On Heads Up Display in GMC Sierra: Step by Step Guide

The Head-Up Display in a GMC Sierra can make everyday driving easier by placing important information directly in your line of sight. Instead of looking down at the instrument cluster, you may be able to view your speed, navigation directions, safety alerts, and other driving data on the windshield. However, many owners are unsure how to activate the feature, especially when the display appears blank or the controls are difficult to find.

Learning how to turn on heads up display GMC Sierra systems is usually simple, but the exact process can vary depending on the model year, trim level, infotainment system, and available equipment. Newer models may allow you to activate the HUD through the center touchscreen, while some older Sierra trucks use physical controls near the driver’s side dashboard.

A dark display does not always mean the system is broken. The brightness may be too low, the image may be positioned outside your normal viewing angle, or your truck may not be equipped with a factory HUD. This guide explains how to turn the system on, adjust its position and brightness, customize the displayed information, and troubleshoot common problems so you can use the feature with confidence.

Quick Answer: How Do You Turn On the Head Up Display in a GMC Sierra?

If your GMC Sierra is equipped with a factory Head Up Display, turning it on usually takes only a few steps. The exact process depends on your truck’s model year and infotainment system, but most newer models follow a similar procedure.

Start the engine or switch the ignition to Accessory mode. Once the infotainment system has fully loaded, tap Settings on the center touchscreen. Select Display, then choose Head Up Display. If the feature is available, toggle it to the On position. After enabling the system, adjust the display height and brightness until the projected image is clearly visible on the windshield.

Some older GMC Sierra models use dedicated physical controls instead of the touchscreen. These controls are typically located on the left side of the dashboard near the steering wheel. Press the HUD button to activate the display, then use the adjustment buttons to move the image higher or lower and increase or decrease the brightness.

If you cannot find the Head Up Display option in either location, your truck may not be equipped with the feature. The easiest way to confirm is by checking your owner’s manual, reviewing your vehicle’s equipment list, or locating the projector opening on top of the dashboard near the windshield.

Before You Begin: Confirm Your GMC Sierra Has a Head Up Display

Before searching through menus or attempting to troubleshoot the system, make sure your GMC Sierra actually includes a factory Head Up Display. This feature is not standard on every trim level and is often available only on higher trims or as part of an optional equipment package.

One of the simplest ways to identify a factory HUD is by looking at the dashboard directly below the windshield. Trucks equipped with the feature have a small projector opening built into the top of the dashboard. This projector displays driving information onto the windshield rather than onto a separate screen.

Another method is to open the infotainment system and navigate to Settings, then Display. If your truck supports a Head Up Display, a dedicated menu should appear with options for turning the feature on or off, adjusting brightness, and changing the display position. Older Sierra models may instead include a group of HUD control buttons on the lower left side of the dashboard.

If you purchased your truck used, it is possible that you assumed every Denali, AT4, or SLT model included a Head Up Display. However, available equipment can vary depending on the model year, factory options, and regional specifications. The most reliable way to verify your truck’s equipment is by checking the original window sticker, entering your VIN into GM’s owner portal, or reviewing the owner’s manual for your specific model year.

Taking a few minutes to confirm that your Sierra is equipped with a factory HUD can save a significant amount of time and prevent unnecessary troubleshooting.

Method 1: Turn On the Head Up Display Through the Center Touchscreen

Most recent GMC Sierra models allow drivers to control the Head Up Display through the infotainment system. If your truck uses a touchscreen interface, follow these steps to activate the feature.

Begin by starting the vehicle or switching the ignition to Accessory mode. Wait until the infotainment system finishes loading before making any adjustments.

From the home screen, tap Settings. Depending on the software version installed in your truck, the menu layout may look slightly different, but the Display settings are generally easy to locate.

Next, select Display. If your Sierra is equipped with a factory Head Up Display, you should see a dedicated Head Up Display menu. Open this menu to access the available controls.

Turn the Head Up Display on by moving the switch to the enabled position. Within a few seconds, information such as your vehicle speed or other selected data should appear on the lower portion of the windshield.

If the display does not appear immediately, do not assume the system is malfunctioning. Increase the brightness level first, as the display may be too dim to see in bright daylight. Then adjust the display height until the projected image lines up comfortably with your normal driving position.

Many GMC Sierra models also allow you to customize the information shown on the Head Up Display. Depending on your vehicle’s equipment, you may be able to display vehicle speed, navigation directions, driver assistance alerts, cruise control information, speed limit recognition, or media details. Selecting only the information you use most often helps reduce distractions while driving and creates a cleaner viewing experience.

Once the settings have been adjusted, the system will normally remember your preferences and automatically activate each time you start the vehicle, provided the Head Up Display remains enabled.

Method 2: Turn On the Head Up Display Using Dashboard Controls

Some GMC Sierra models use dedicated dashboard buttons instead of touchscreen controls to manage the Head Up Display. If your truck was built before the latest infotainment systems became standard, this method is likely the one you will use.

Start by sitting in the driver’s seat and turning on the ignition or starting the engine. Look to the left of the steering wheel, below the air vent or beside the instrument panel. Trucks equipped with a factory Head Up Display typically have a small group of buttons marked with HUD icons.

Press the main HUD button to activate the display. Within a few moments, the projected image should appear near the lower portion of the windshield. If nothing appears, increase the brightness using the corresponding control. A very low brightness setting is one of the most common reasons drivers believe the system is not working.

Next, adjust the display height until the information is comfortably positioned within your normal line of sight. The projection should appear to float above the hood without blocking your view of the road ahead. If the image seems too high or too low, continue making small adjustments until it feels natural to read without moving your head.

Some Sierra models also include buttons that allow you to cycle through different display layouts. Depending on your truck’s equipment, you may be able to view vehicle speed, navigation guidance, driver assistance alerts, or cruise control information. Choose the layout that best fits your driving preferences to minimize distractions and keep the most important information within easy view.

How to Adjust the GMC Sierra Head Up Display

Once the Head Up Display is turned on, taking a few moments to customize it can significantly improve visibility and overall driving comfort. A properly adjusted HUD should appear clear, easy to read, and positioned naturally within your field of vision.

The first setting to adjust is the display height. Every driver sits differently, so the factory position may not be ideal for you. Use either the touchscreen controls or the dashboard adjustment buttons to move the image higher or lower until it sits comfortably above the hood without interfering with your view of traffic.

Next, adjust the brightness according to current lighting conditions. During bright daylight, increasing the brightness helps keep the display visible even under direct sunlight. At night, lowering the brightness reduces glare and makes the information easier on your eyes during long drives.

Many GMC Sierra models also allow you to customize the information displayed on the windshield. Depending on your truck’s trim level and available technology package, you may be able to display current speed, navigation directions, speed limit information, adaptive cruise control status, lane keeping alerts, forward collision warnings, audio information, and other driver assistance notifications.

Avoid displaying unnecessary information whenever possible. A clean and uncluttered Head Up Display is easier to read and allows you to focus on the road instead of processing too much information at once. If multiple driver profiles are available in your Sierra, save your preferred HUD settings to your personal profile so they are automatically restored each time you drive.

Why Is My GMC Sierra Head Up Display Not Working?

If your Head Up Display does not appear after turning it on, there is often a simple explanation that can be resolved without visiting a dealership.

The most common cause is that the feature has been accidentally disabled. Open the Display settings on the infotainment system or check the dashboard HUD controls to confirm the system is switched on.

Brightness settings are another frequent issue. If the brightness has been reduced to its lowest level, the projection may become nearly invisible, especially during the daytime. Increasing the brightness usually solves the problem within seconds.

The display position may also be incorrect. If the image has been adjusted too high or too low, it can fall outside your normal viewing angle, making it seem as though nothing is being projected. Raising or lowering the display while sitting in your normal driving position often restores visibility.

Polarized sunglasses can also affect the appearance of a Head Up Display. Certain polarized lenses reduce the visibility of projected images on the windshield. If the display seems to disappear while wearing sunglasses, remove them briefly to determine whether they are causing the issue.

A dirty windshield can reduce image clarity as well. Dust, fingerprints, window tint, or condensation on the inside of the glass may distort the projection. Cleaning the windshield thoroughly can noticeably improve the sharpness of the displayed information.

If your windshield has recently been replaced, verify that the replacement glass is compatible with vehicles equipped with a factory Head Up Display. Some aftermarket windshields may not reproduce the projection correctly, resulting in blurry or duplicated images.

Occasionally, the infotainment system may experience a temporary software issue. Restarting the system or turning the vehicle off for several minutes before restarting it may restore normal operation. Installing the latest software updates can also resolve bugs that affect vehicle display features.

Finally, if you cannot locate any HUD controls, menu options, or projector opening on the dashboard, your GMC Sierra may not include a factory Head Up Display. In this case, there is no software setting that can enable the feature because the necessary hardware was never installed at the factory.

GMC Sierra HUD Settings for Different Model Years

Although the basic purpose of the Head Up Display remains the same across the GMC Sierra lineup, the controls and available features can vary depending on the model year and trim level. Understanding these differences makes it much easier to locate the correct settings and avoid unnecessary troubleshooting.

Older GMC Sierra models equipped with a factory HUD typically use dedicated buttons mounted on the dashboard to the left of the steering wheel. These buttons allow drivers to turn the display on or off, adjust brightness, move the projected image higher or lower, and switch between available display modes.

Newer Sierra models equipped with the latest infotainment systems generally integrate these controls into the center touchscreen. Drivers can access the Head Up Display by opening the Settings menu, selecting Display, and then choosing Head Up Display. Depending on the software version, additional customization options may be available for selecting the information shown on the windshield.

It is also important to remember that not every GMC Sierra includes a Head Up Display. Availability depends on the model year, trim level, and optional equipment packages. Higher trims such as the Denali and Denali Ultimate are more likely to include the feature, while lower trims may not offer it at all or may require an optional package.

If you recently purchased a used GMC Sierra, avoid assuming that another truck from the same model year has identical equipment. Factory options can differ significantly even between vehicles with the same trim name. The most reliable way to verify available features is by checking your owner’s manual, reviewing the original equipment list, or using your vehicle identification number through GMC’s owner resources.

Whenever menu names or settings appear different from those described in this guide, remember that software updates may slightly change the layout without affecting the overall functionality. The activation process remains largely the same even if certain menu labels have been updated.

Frequently Asked Questions

Does every GMC Sierra have a Head Up Display?

No. The Head Up Display is not standard on every GMC Sierra. Availability depends on the model year, trim level, and optional technology packages installed at the factory.

Where is the Head Up Display button located?

On older GMC Sierra models, the HUD controls are usually located on the lower left side of the dashboard near the steering wheel. On newer models, the feature is typically controlled through the center touchscreen under the Display settings.

Why can’t I find the Head Up Display settings?

If the Head Up Display menu is missing, your truck may not be equipped with the necessary hardware. It is also possible that the menu location has changed slightly depending on the infotainment software version installed in your vehicle.

Why is my Head Up Display so dim?

A low brightness setting is the most common reason the display appears difficult to see. Increase the brightness through the HUD settings and verify that sunlight or polarized sunglasses are not affecting visibility.

Can I customize the information shown on the Head Up Display?

Yes. Most GMC Sierra models equipped with a factory Head Up Display allow drivers to select which information appears on the windshield. Available options may include vehicle speed, navigation guidance, cruise control status, safety alerts, and driver assistance notifications.

Can polarized sunglasses affect the Head Up Display?

Yes. Some polarized lenses can reduce or completely block the projected image depending on the viewing angle. If the display disappears while wearing sunglasses, try removing them temporarily to determine whether they are the cause.

Does replacing the windshield affect the Head Up Display?

It can. Factory Head Up Displays are designed to work with compatible windshields. Installing an incompatible aftermarket windshield may result in blurry, distorted, or duplicated images.

Can I install a factory Head Up Display on a Sierra that did not originally have one?

While technically possible in some situations, a factory retrofit is usually expensive and complex. It may require replacing the dashboard, windshield, wiring harnesses, electronic modules, and programming the vehicle. For most owners, installing an aftermarket Head Up Display is a more practical and cost effective solution.

Conclusion

Knowing how to turn on Head Up Display GMC Sierra models is much easier once you understand which control system your truck uses. Some vehicles allow you to activate the feature through the center touchscreen, while others rely on dedicated dashboard buttons. After enabling the display, adjusting the brightness and projection height ensures the information remains clear and comfortable to read during both daytime and nighttime driving.

If the display does not appear, begin with the simplest checks before assuming there is a hardware problem. Confirm that the feature is enabled, increase the brightness, adjust the viewing position, clean the windshield, and verify that your truck is actually equipped with a factory Head Up Display. These basic steps solve the majority of visibility issues without requiring professional repairs.

The Head Up Display is designed to improve driver awareness by placing important information directly within your line of sight, helping you keep your eyes on the road while staying informed. Once properly configured, it becomes one of the most useful convenience features available on many GMC Sierra models.

If you still have trouble activating the Head Up Display after following this guide, leave a comment with your GMC Sierra model year and trim level. Providing those details makes it much easier to identify the correct controls and recommend the most effective solution.