2007 GMC Acadia Owner's Manual - Page 194

If You Cannot See the HUD Image When the Ignition Is On • Is anything covering the HUD lens? • Is the HUD dimmer setting bright enough? • Is the HUD image adjusted to the proper height? Ultrasonic Rear Parking Assist (URPA) If your vehicle has the Ultrasonic Rear Parking Assist (URPA) system it is designed to help you park while in Reverse (R). It operates only at speeds less than 5 mph (8 km/h). URPA helps make parking easier and helps you avoid colliding with objects such as parked vehicles. The URPA system detects objects that are close to the rear of the vehicle which are at least 10 inches (25.4 cm) off the ground and below hood or trunk level. The system detects objects up to 8 feet (2.5 m) behind your vehicle. The URPA sensors determine how close these objects are from your bumper within this area. • Are you wearing polarized sunglasses? • Still no HUD image? Check the fuse in the instrument panel fuse block. See Instrument Panel Fuse Block on page 490. If the HUD Image Is Not Clear • Is the HUD image too bright? • Are the windshield and HUD lens clean? If the HUD image is not correct, contact your dealer/retailer. Keep in mind that the windshield is part of the HUD system. 194