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NHTSA ID Number: 10184509
Manufacturer Communication Number: PIE0582A
Summary
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Head Up Display (HUD) being blank.
SEOCONTENT-START
Subject: Engineering Information – Head Up Display (HUD) Blank, DTC U1518 Set
Attention: Proceed with this EI ONLY if the customer has commented about this concern AND the PIE number is listed in the
Global Warranty Management / Investigate History link (GWM/IVH). If the customer has not commented about this
condition or the EI does not show in GWM/IVH, disregard the PIE and proceed with diagnostics found in published
service information. THIS IS NOT A RECALL — refer to Service Bulletin 04-00-89-053 for more details on the use of
Engineering Information bulletins.
This EI has been revised to add 2020-2021 XT4 and XT5. Please discard PIE0582.
Brand: Model: Model Year: VIN: Engine: Transmission:
from to from to
Cadillac XT4 2020 2021 – – – –
XT5
XT6
Involved Region or Country North America
Additional Options (RPOs) Equipped with HEAD UP DISPLAY-WINDSHIELD (RPO UV6)
Condition Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this EI.
Some customers may comment on the Head Up Display (HUD) is blank. They may also comment that the HUD
could become operational by changing the HUD dimming level or by an ignition cycle.
Technician may find DTC U1518 set.
Cause GM Engineering is attempting to determine the root cause of the above condition. Engineering has a need to
gather information on vehicles PRIOR to repair that may exhibit this condition. As a result, this information will be
used to “root cause” the customer’s concern and develop/validate a field fix.
Correction
If you encounter a vehicle with the above concern, perform the following steps and contact the engineer listed below with your findings.
Verify that DTC U1518 – Loss of communication with Head Up Display is stored in the instrument cluster.
• If the DTC is stored current or history, proceed with this Engineering Investigation PI, gather as much information as possible from the questions below, and
contact the GM Engineer to discuss next steps.
• If the DTC is not stored, then this Engineering Investigation DOES NOT apply. Refer to Head-Up Display Malfunction in SI for diagnostic procedures.
Please discuss the following six questions with the customer to gain details from their experience:
1. When did the condition occur? Example: at startup, after driving, note the driving conditions such as weather, road conditions, day/night, city/highway, etc.
2. Has the blank HUD condition occurred more than once?
2.1. Can the customer reproduce the condition with any specific actions or sequence of events?
3. What was customer doing when the condition occurred? Example: Use of steering wheel controls, HUD controls, adjusting or scrolling any Cluster Settings,
changing Drive modes (normal/sport)?
4. Does the blank HUD condition recover? If so, how is it recovered? Example: ignition cycle or change HUD dimming level.
5. Did customer notice if the instrument cluster went blank, or acted up in other ways before the HUD went blank?
6. Were the steering wheel controls exhibiting any issues around the same time the blank HUD condition occurred?
The remaining questions are for the dealer technician to answer PRIOR to contacting the GM Engineer.
1. With the vehicle running, is the condition of blank/no HUD image and a current DTC U1518 present or reproducible?
2. Record all DTCs, where they are stored, and their status (Current/History).
3. Contact the GM Engineer to provide answers to the questions above.
1
Contact Information
Please include the following information if leaving a message:
– Technician name
– Dealer name and phone number
– Complete VIN and repair order (R.O) number
On the repair order, document the date and time the call was placed (even if the engineer was not reached).
If engineering is unable to return the call within one hour, proceed with diagnosis and repair based on information found in SI.
Warranty Information
If engineer was contacted or required information was provided, use:
Labor Operation Description Labor Time
3487118* Engineering Information – Head Up Display (HUD) Blank, DTC U1518 Set 0.3 hr
* This is a unique labor operation for bulletin use only.
Version 2
Modified Released August 27, 2020
Revised November 04, 2020 – Revised to add 2020-2021 XT4 and XT5.
2
The Contact Information has been redacted.
SEOCONTENT-END
6 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CADILLAC | XT4 | 2020-2021 |
| CADILLAC | XT5 | 2020-2021 |
| CADILLAC | XT6 | 2020-2021 |
1 Associated Document
Manufacturer Communications
PIE0582A
https://www.nhtsa.gov/recalls?nhtsaId=10184509
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- 🚙【What is HUD?】 Short for Head Up Display. It displays driving data on the front windshield such as speed,RPM,water temperature,voltage single mileage etc. HUD avoids the danger of drivers looking down at the dashboard. It ensures the safety of drivers because of watching the data on the car front window glass, and helps drivers to keep the best state on the way. A variety of operating interface modes and colors can be switched, It will bring more fun and Technological sense to you.
- 🚙【Simple Display】Vehicle Speed + Engine RPM, HD Display, practical function, let you drive more comfortable for a long time. (plug and play -- Available for 95% car with an OBD2/ GPS interface) The Nano - Technology - High clearness projector, to eliminate unwanted reflections and can make the display information more sharper. The Automatic and manual brightness adjustment mode, and more easy to control the HUD.
- 🚙【Multiple functions】: Ambient decorative lighting Engine RPM Fault code alarm Fatigue driving alarm .The Alarm icon Light sensor: HUD can automatically adjust the brightness "according to the environment .Speed unit: KM/H, MPH .Multi-function zone: speed,water temperature,battery voltage,driving distance Water temperature icon ,voltage icon.
- 🚙【Compatible Attention】OBD2 mode is only available for most vehicles manufactured after 2008. GPS mode Perfect Suitable for All Vehicle. ( If your car is not compatible with OBD mode, please toggle the scroll wheel button to the left or right to switch to GPS mode within 5 seconds after the HUD is turned on.)Dual System, OBD2 mode is not compatible with hybrid electric vehicle, diesel car, pickup truck, RV, computer modified car, it is recommended to use the GPS mode.
- 🚙【QUALITY SERVICE】CE FCC RoHS Certification, Superior quality. The chip with powerful performance and compatibility to make sure dual system, dual-run memory and dual-core processor high-speed operat.If you have any questions about this product, please contact us. We will get back to you as soon as possible and help you solve the problem.
- 2 KINDS INSTALL---Install on A-Pillar trim or put on dashboard, more easy for use. Simply displays directly to you at whatever angle you set it up is possible, no need to make effort or look down that would create distractions, best assistant to help ensure your driving safety.
- MORE EASY---Easy to install, set up is no more complex than connecting to USB power. It takes perhaps half a mile to lock onto a satellite and do its housekeeping before speed is displayed.
- 8 DISPLAY INTERFACES---Different interface can be freely switched. Read full car data stream, display vehicle ECU data.
- MULTI-FUNCTION---OBD+GPS dual system with function display, such as speed, clock, RPM, voltage, water temperature, etc. please note: the default mode is OBD2 mode.
- QUALITY & SERVICE---CE FCC RoHS listed. Any querry, feel free to contact us, we will reply and help you solve problem ASAP.
- 【What is M22 hud】M22 is a GPS mode flat screen display, unlike most flat screen displays on the market, our designers have made good use of the windscreen to turn M22 into a new windscreen HUD.
- 【Design Concept】This GPS speedometer is a novel design with a colour scheme for the first time. It presents important speed data to the driver at a glance and is simple to understand.
- 【Main Functions】The M22windshield speedometer projector displays speed, clock, travel time and distance travelled. It also has an over speed alarm function and a GPS compass to show the direction. Speed is available in MPH and KM/H, which can be adjusted in the settings. When there is an over speed, the product will emit a beeping sound to remind the driver, which is like a safety supervisor, always reminding the driver to pay attention to driving safety, placing a beautiful M22 HUD in the car.
- 【Automated HUD】The advantage of the digital speedometer automation is that it turns on automatically when the car starts and turns off automatically when the car is switched off, which is very convenient and you don't have to worry about the product not being able to turn off. A gentle reminder, if you are not driving for more than a week, please remove the product and put it in the drawer.
- 【Instructions for use】 Our product is easy to install, plug and play, just use the usb cable included in the product to connect the car and the product, start the engine to power on and use. When you notice the small icon on the product flashing continuously, it means the product is collecting satellites, the speed will only be displayed when the device searches for satellites.
- ESSENTIAL DRIVING DATA - Displays speed & driving direction, the crucial data every driver wants to know, projected in full color display right onto the windshield in-front of you with no need to take your eyes off the road
- AUTO POWER ON/OFF - HUD Head-Up Display auto powers on/off with vehicle start & shutdown. Easily switch between KPH or MPH speed unit, featuring a speed alarm, giving you the ultimate display without compromising your safety
- PLUG 'N' PLAY - No hassle installation. Just plug in to cigarette lighter. Includes non-slip grip mat. Designed with latest nano-technology eliminating unwanted double reflections from vehicle laminated windshield
- SUITABLE FOR ALL VEHICLES - Built in Dual Core processing chip providing you with reliable real-time data received via GPS & providing you with a compass & driving direction without the need for vehicles on board computer. Perfect for every vehicle
- MULTI COLOR DISPLAY - 3.5 inch multi-color digital LED display with integrated light sensors for automatic image balance for clear readout & visibility during daytime or nighttime driving. Make your travel experience safer today with PYLE HUD
- 【C3 Introduction】: The head up display C3 can display your car data directly on the built-in glass lenses of the product. Compared with ordinary LED HUDs on the market, it does not require any reflective film to be affixed to the car glass and does not damage the car. Transparent reflectors are made of special materials that do not double in the midday sunlight, making driving less dazzling and ensuring the safety of the driver to a greater extent. Moreover, the product comes with a transparent reflector that can adjust the angle slightly and can be freely adjusted according to your driving habits.
- 【Please note】: This OBD2 Heads Up Display features dual GPS and OBD2 modes for all cars and comes with an OBD cable and a USB cable. However, it is important to note that the OBD system is only available for some petrol cars manufactured after 2008; if your car is a diesel or a pre-2008 model, you can only use the GPS mode. (If the OBD system is not compatible, please switch to the GPS system)
- 【OBD mode function】: OBD heads up dash display has Vehicle speed, water temperature, voltage, fuel consumption, speed, single mileage, total mileage, accumulated driving time, direction of travel, search for stars, altitude, system time, intake pressure, oil temperature, air fuel ratio, turbine pressure, intake pressure, acceleration test, braking test, clearing fault code, reading data flow, overspeed alarm, RPM alarm, high water temperature alarm, low voltage alarm, engine fault alarm.
- 【GPS mode function】: Speedometer for car has Vehicle speed, travel time, satellite time, altitude, satellite quantity, travel direction, single mileage, voltage, acceleration test, braking test, overspeed alarm, low voltage alarm.
- 【Multiple screen options】: The C3 car head up display has a unique and novel appearance and interface design, with 8 colors and 12 different screens, which can be switched at will with a single click, convenient and fast, you can choose to match the unique screen according to your needs.
- 【Service】 We are responsible for the product and believe in the quality of the product. Professional functions and high reliability bring you a different experience and ensure the satisfaction of each customer. If you have any questions about our products, we will answer you at any time.
- 【High-quality materials】 using high-quality ABS plastic, with heat resistance, hardness, high elasticity and toughness, improved electrical performance, wear resistance, and good waterproof performance. Good materials can effectively increase the service life of the product. We are confident in the quality of our products.
- 【Easy to install】 The plug with buckle design ensures a firm and stable connection, even on rugged roads without disconnection or power failure. Plug and play, install and start working. The installation can be completed in a short time and hardly any mechanical knowledge is required.
- 【Multi-function】 can display vehicle speed, water temperature, voltage, one-way mileage. With alarm function, overspeed alarm, water temperature alarm, voltage alarm, fatigue driving reminder, fault alarm. HUD has an adaptive light sensor function, with clear backlight during the day and soft and -free at night.
- 【Application】 brand new high-quality car head-up display, versatile, suitable for cars with OBD2 interface and protocol. High-definition display effect, clear and no ghosting, the main unit + reflective film, the backlight is also clear.
- 🚙【WORKS FOR ALL VEHICLES】– Unlike other Car HUDs, you do not need to worry about the compatibly, T600 could work for ALL vehicles, no matter which brand or which model all over the world cause T600 is based on the GPS module inside.
- 🚙【TFT LCD DISPLAY】– T600 HUD is equipped with a high definition 2.2'' TFT LCD screen, which displays the information more clearly than the windshield HUD, companied with a multi colors switching function, it may make you feel more comfortable to monitor the speed and bring more fun to your driving experience. With a 30° angle supporting design, it's a good view to read the information directly without moving your eyes from the road, no need to paste any reflecting sticker on your windshield.
- 🚙【RICH CONTENTS】– Almost everything you may need to read during driving will be shown by this HUD, including vehicle speed, driving direction, voltage, driving distance measurement, driving time, low voltage alarm, over speed alarm, satellite time and number, altitude, freely switch between kilometers and miles. A great partner for your driving.
- 🚙【MULTIFUNCTIONS】– T600 HUD has been upgraded with new functions which make it different and more competitive than the traditional HUD in the market. Because T600 is based on the GPS module and satellite, so it can be used to speedup test, brake performance test and other car data information reading. A mutifunctional tool to help you know about your car.
- 🚙【Long Lifespan & Worry-free Support】Along with our product we provide friendly customer service if there are any questions or concerns. If you have any question, please be free to contact us, we promise to make you 100% satisfied.
- 【HUD Display OBD II】: The heads display for cars can show the driving datas on the front windshield such asspeed, RPM, water temperature, voltage etc, to avoid drivers unsafety because of watching the instrument while driving. Drivers can read the driving information on the car front window glass instantly , and can always keep the best state on the way with HUD. A variety of operating interface modes and colors can be switched freely, it will bring more fun and Technological sense to you.
- 【3.5IN LCD Display】: Compact mini 3.5 inch head up display, you can adjust the brightness mode automaticly and manually, driving without glare. High clearness projector, can eliminate unwanted reflections and make the display information more sharper, it is pretty clear in the sunny day, rainy day. This car HUD rear visor helps you read data more clearly and is an essential gadget for your driving.
- 【Plug & Use】: Insert the OBD socket connector, stuff the wire into the a-pillar sealing strip, connect one end of the OBD interface to the HUD and you can use it, place the HUD to a suitable position. Automatically reads car data without damaging the car's internal device.
- 【Multiple Functions】: The car HUD display windshield is designed with ambient decorative lighting, overspeed alarm, voltage alarm, water temperature alarm, fatigue driving reminder, fault alarm functions, which means to ensure your safety in long distance driving. 9 display mode interface, you can choose your favorite screen. Multi-function display or simple function display can be switched freely.
- 【Compatible Details】: This car heads up display is a OBD system product. OBDll is suitable for vehicles manufactured after 2008. OBDll model is not compatible with hybrid electric cars, diesel cars, pickup trucks, saloon cars, computer modified cars. Make sure the HUD model is suitable for your car.
- SAFE IS THE FIRST---Just focus on your driving, could read speed at a glance with the digital numbers but without having to look down; This unit simply displays directly to you at whatever angle you set it up, no need to make effort to have a look, which may lead to make distractions or even cause accident.
- NEW DRIVING EXPERIENCE---10 kinds interface, free switch, LCD meter, clear fault code, read data stream; 2 install way with adjustable bracket, put on dashboard or stick to windshield, easy operation, non-destructive installation.
- A MUST HAVE---If you don't want your driving record to have points on it or pat hundreds of dollars in speeding tickets; If on a major highway, you really want to know how fast you are going; If your wife get worried and want to see you're not driving so fast as she feels; Or if you would like to solve your problem of never knowing how fast you are going, this speedometer perfectly matches your need.
- DRIVING MORE COMFORTABLE---When driving normally, the ambient light is blue color(automatically adjusts the brightness according to the environment ); when driving abnormally, such as speeding, the ambient light will be changed to Red color for alarming.
- MORE SMOOTH & STABLE---Common meter only has OBD mode, but ours is dual mode: OBD+GPS 2-in-1, the default display OBD+GPS function at the same time, and data display is more abundant. OBD system, can read more than 100 kinds of data in the car. If the vehicle doesn't have OBD2 protocol, only displays GPS function.
- Heads Up Display: Heads up display for cars with multiple functions, heads up display car for cars can display speed, rotation speed, water tank temperature, voltage, and clear faults.
- Have Multiple Alarm Mode: Head up display for car windshield speedometer for car with overspeed alarm, car hud head up display voltage alarm, digital speedometer water temperature alarm, car heads up display fatigue driving reminder, fault alarm.
- Meet Different Needs: GPS speedometer multiple operation interface modes can be switched freely to head up wheel meet different needs and bring you more convenience.
- Applicable Vehicle: Speedometer for car wide range of applications, suitable for vehicles that complied with OBDII standards, which has strong practicality.
- Guarantee Driving Safety: Car speedometer observing the data on the front window glass of the car, digital speedometer for car car no need to down head, insure the safety and help the driver maintain the best condition during driving.
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