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Wheels and Tires
Tires Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional information refer to the tire manufacturer.
{ Warning
. Poorly maintained and
improperly used tires are dangerous.
. Overloading the tires can
cause overheating as a result of too much flexing. There could be a blowout
(Continued)
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Warning (Continued)
and a serious crash. See Vehicle Load Limits on page 9-15.
. Underinflated tires pose
the same danger as overloaded tires. The resulting crash could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when the tires are cold.
. Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact — such as when hitting a pothole. Keep tires at the recommended pressure.
(Continued)
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Warning (Continued)
. Worn or old tires can
cause a crash. If the tread is badly worn, replace them.
. Replace any tires that
have been damaged by impacts with potholes, curbs, etc.
. Improperly repaired tires can cause a crash. Only the dealer or an authorized tire service center should repair, replace, dismount, and mount the tires.
. Do not spin the tires in
excess of 56 km/h (35 mph) on slippery surfaces such as snow, mud, ice, etc. Excessive spinning may cause the tires to explode.
See Tire Pressure for High-Speed Operation on page 10-50 for inflation pressure adjustment for high-speed driving.
All-Season Tires This vehicle may come with all-season tires. These tires are designed to provide good overall performance on most road surfaces and weather conditions. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Original equipment all-season tires can be identified by the last two characters of this TPC code, which will be “MS.” Consider installing winter tires on the vehicle if frequent driving on snow or ice-covered roads is expected. All-season tires provide adequate performance for most winter driving conditions, but they may not offer the same level of
traction or performance as winter tires on snow or ice-covered roads. See Winter Tires on page 10-42.
Winter Tires This vehicle was not originally equipped with winter tires. Winter tires are designed for increased traction on snow and ice-covered roads. Consider installing winter tires on the vehicle if frequent driving on ice or snow covered roads is expected. See your dealer for details regarding winter tire availability and proper tire selection. Also, see Buying New Tires on page 10-57. With winter tires, there may be decreased dry road traction, increased road noise, and shorter tread life. After changing to winter tires, be alert for changes in vehicle handling and braking. If using winter tires: . Use tires of the same brand and
tread type on all four wheel positions.
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The tread pattern on these tires may wear more quickly than other tires. Consider rotating the tires more frequently than at 12 000 km (7,500 mi) intervals if irregular wear is noted when the tires are inspected. See Tire Inspection on page 10-54.
Tire Sidewall Labeling Useful information about a tire is molded into the sidewall. The example shows a typical passenger vehicle tire sidewall.
. Use only radial ply tires of the
same size, load range, and speed rating as the original equipment tires.
Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y, and ZR speed rated tires. If winter tires with a lower speed rating are chosen, never exceed the tire's maximum speed capability.
Low-Profile Tires The vehicle has low profile tires that are classified as touring tires and are designed for on road use. The low-profile, wide tread design is not recommended for off-road driving. See Off-Road Driving on page 9-6, for additional information.
{ Caution Low-profile tires are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like potholes, or sharp edged objects, or when sliding into a curb. The warranty does not cover this type of damage. Keep tires set to the correct inflation pressure and when possible, avoid contact with curbs, potholes, and other road hazards.
All-Terrain Tires This vehicle may have all-terrain tires. These tires provide good performance on most road surfaces, weather conditions, and for off-road driving. See Off-Road Driving on page 9-6.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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criteria have a TPC specification code molded onto the sidewall. GM's TPC specifications meet or exceed all federal safety guidelines. (3) DOT (Department of Transportation): The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards. DOT Tire Date of Manufacture: The last four digits of the TIN indicate the tire manufactured date. The first two digits represent the week (01-52) and the last two digits, the year. For example, the third week of the year 2010 would have a four-digit DOT date of 0310.
(4) Tire Identification Number (TIN): The letters and numbers following the DOT code are the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture. (5) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread. (6) Uniform Tire Quality Grading (UTQG): Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction, and temperature resistance. For more information, see Uniform Tire Quality Grading on page 10-59.
Passenger (P-Metric)/Spare Tire (1) Tire Size: The tire size code is a combination of letters and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description. See the “Tire Size” illustration later in this section for more detail. (2) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM's specific tire performance
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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(7) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load. For information on recommended tire pressure see Tire Pressure on page 10-48 and Vehicle Load Limits on page 9-15. (8) Temporary Use Only: Only use a temporary spare tire until the road tire is repaired and replaced. This spare tire should not be driven on over 112 km/h (70 mph), or 88 km/h (55 mph) when pulling a trailer, with the proper inflation pressure. See Full-Size Spare Tire on page 10-73.
Tire Designations
Tire Size The example shows a typical passenger vehicle tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire: The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association. (2) Tire Width: The three-digit number indicates the tire section width in millimeters from sidewall to sidewall. (3) Aspect Ratio: A two-digit number that indicates the tire height-to-width measurements. For example, if the tire size aspect ratio is 75, as shown in item C of the tire illustration, it
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would mean that the tire's sidewall is 75 percent as high as it is wide. (4) Construction Code: A letter code is used to indicate the type of ply construction in the tire. The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted-bias ply construction. (5) Rim Diameter: Diameter of the wheel in inches. (6) Service Description: These characters represent the load index and speed rating of the tire. The load index represents the load carrying capacity a tire is certified to carry. The speed rating is the maximum speed a tire is certified to carry a load.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Tire Terminology and Definitions Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per square inch). Accessory Weight: The combined weight of optional accessories. Some examples of optional accessories are automatic transmission, power windows, power seats, and air conditioning. Aspect Ratio: The relationship of a tire's height to its width. Belt: A rubber coated layer of cords between the plies and the tread. Cords may be made from steel or other reinforcing materials.
Bead: The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim. Bias Ply Tire: A pneumatic tire in which the plies are laid at alternate angles less than 90 degrees to the centerline of the tread. Cold Tire Pressure: The amount of air pressure in a tire, measured in kPa (kilopascal) or psi (pounds per square inch) before a tire has built up heat from driving. See Tire Pressure on page 10-48. Curb Weight: The weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo.
DOT Markings: A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S. Department of Transportation (DOT) Motor Vehicle Safety Standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also identify the tire manufacturer, production plant, brand, and date of production. GVWR: Gross Vehicle Weight Rating. See Vehicle Load Limits on page 9-15. GAWR FRT: Gross Axle Weight Rating for the front axle. See Vehicle Load Limits on page 9-15. GAWR RR: Gross Axle Weight Rating for the rear axle. See Vehicle Load Limits on page 9-15.
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Intended Outboard Sidewall: The side of an asymmetrical tire that must always face outward when mounted on a vehicle. Kilopascal (kPa): The metric unit for air pressure. Light Truck (LT-Metric) Tire: A tire used on light duty trucks and some multipurpose passenger vehicles. Load Index: An assigned number ranging from 1 to 279
that corresponds to the load carrying capacity of a tire. Maximum Inflation Pressure: The maximum air pressure to which a cold tire can be inflated. The maximum air pressure is molded onto the sidewall. Maximum Load Rating: The load rating for a tire at the maximum permissible inflation pressure for that tire.Maximum Loaded Vehicle Weight: The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight. Normal Occupant Weight: The number of occupants a vehicle is designed to seat multiplied by 68 kg (150 lb). See Vehicle Load Limits on page 9-15. Occupant Distribution: Designated seating positions. Outward Facing Sidewall: The side of an asymmetrical tire that has a particular side that faces outward when mounted on a vehicle. The side of the tire that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire.
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Passenger (P-Metric) Tire: A tire used on passenger cars and some light duty trucks and multipurpose vehicles. Recommended Inflation Pressure: Vehicle manufacturer's recommended tire inflation pressure as shown on the tire placard. See Tire Pressure on page 10-48 and Vehicle Load Limits on page 9-15. Radial Ply Tire: A pneumatic tire in which the ply cords that extend to the beads are laid at 90 degrees to the centerline of the tread. Rim: A metal support for a tire and upon which the tire beads are seated. Sidewall: The portion of a tire between the tread and the bead.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Vehicle Care
Speed Rating: An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate. Traction: The friction between the tire and the road surface. The amount of grip provided. Tread: The portion of a tire that comes into contact with the road. Treadwear Indicators: Narrow bands, sometimes called wear bars, that show across the tread of a tire when only 1.6 mm (1/ 16 in) of tread remains. See When It Is Time for New Tires on page 10-56. UTQGS (Uniform Tire Quality Grading Standards): A tire information system that provides consumers with ratings for a tire's traction, temperature, and treadwear. Ratings are
determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire. See Uniform Tire Quality Grading on page 10-59. Vehicle Capacity Weight: The number of designated seating positions multiplied by 68 kg (150 lb) plus the rated cargo load. See Vehicle Load Limits on page 9-15. Vehicle Maximum Load on the Tire: Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight. Vehicle Placard: A label permanently attached to a vehicle showing the vehicle capacity weight and the original equipment tire size and recommended inflation pressure.
See “Tire and Loading Information Label” under Vehicle Load Limits on page 9-15.
Tire Pressure Tires need the correct amount of air pressure to operate effectively.
{ Caution
Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can result in:
. Tire overloading and
overheating which could lead to a blowout.
. Premature or irregular wear. . Poor handling. . Reduced fuel economy.
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Caution (Continued)
Overinflated tires, or tires that have too much air, can result in:
. Unusual wear. . Poor handling. . Rough ride. . Needless damage from
road hazards.
The Tire and Loading Information label on the vehicle indicates the original equipment tires and the correct cold tire inflation pressures. The recommended pressure is the minimum air pressure needed to support the vehicle's maximum load carrying capacity. For additional information regarding how much weight the vehicle can carry, and an
example of the Tire and Loading Information label, see Vehicle Load Limits on page 9-15. How the vehicle is loaded affects vehicle handling and ride comfort. Never load the vehicle with more weight than it was designed to carry.
When to Check Check the tires once a month or more. Do not forget the spare tire, if the vehicle has one. See Full-Size Spare Tire on page 10-73 for additional information.
How to Check Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning
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the vehicle has not been driven for at least three hours or no more than 1.6 km (1 mi). Remove the valve cap from the tire valve stem. Press the tire gauge firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is low, add air until the recommended pressure is reached. If the inflation pressure is high, press on the metal stem in the center of the tire valve to release air. Re-check the tire pressure with the tire gauge. Return the valve caps on the valve stems to prevent leaks and keep out dirt and moisture.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Tire Pressure for High-Speed Operation
{ Warning
Driving at high speeds, 160 km/h (100 mph) or higher, puts an additional strain on tires. Sustained high-speed driving causes excessive heat buildup and can cause sudden tire failure. You could have a crash and you or others could be killed. Some high-speed rated tires require inflation pressure adjustment for high-speed operation. When speed limits and road conditions are such that a vehicle can be driven at high speeds, make sure the tires are rated for high-speed operation, in excellent condition, and set to the correct cold tire inflation pressure for the vehicle load.
When driving the vehicle at speeds of 160 km/h (100 mph) or higher, set the cold inflation pressure to 20 kPa (3 psi) above the recommended tire pressure shown on the Tire and Loading Information label. Return the tires to the recommended cold tire inflation pressure when high-speed driving has ended. See Vehicle Load Limits on page 9-15
and Tire Pressure on page 10-48.Tire Pressure Monitor System The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. The TPMS sensors monitor the air pressure in your tires and transmit tire pressure readings to a receiver located in the vehicle. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation
pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. See Tire Pressure Monitor Operation on page 10-51. See Radio Frequency Statement on page 13-12.
Tire Pressure Monitor Operation This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are
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mounted onto each tire and wheel assembly, excluding the spare tire and wheel assembly. The TPMS sensors monitor the air pressure in the tires and transmit the tire pressure readings to a receiver located in the vehicle.
When a low tire pressure condition is detected, the TPMS illuminates the low tire pressure warning light located on the instrument cluster. If the warning light comes on, stop as soon as possible and inflate the tires to the recommended pressure shown on the Tire and Loading Information label. See Vehicle Load Limits on page 9-15.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Vehicle Care
A message to check the pressure in a specific tire displays in the Driver Information Center (DIC). The low tire pressure warning light and the DIC warning message come on at each ignition cycle until the tires are inflated to the correct inflation pressure. If the vehicle has DIC buttons, tire pressure levels can be viewed. For additional information and details about the DIC operation and displays, see Driver Information Center (DIC) on page 5-30 and Tire Messages on page 5-46. The low tire pressure warning light may come on in cool weather when the vehicle is first started, and then turn off as the vehicle is driven. This could be an early indicator that the air pressure is getting low and needs to be inflated to the proper pressure.
A Tire and Loading Information label shows the size of the original equipment tires and the correct inflation pressure for the tires when they are cold. See Vehicle Load Limits on page 9-15, for an example of the Tire and Loading Information label and its location. Also see Tire Pressure on page 10-48. The TPMS can warn about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection on page 10-54, Tire Rotation on page 10-55 and Tires on page 10-41.
{ Caution
Tire sealant materials are not all the same. A non-approved tire sealant could damage the TPMS sensors. TPMS sensor damage caused by using an incorrect tire sealant is not covered by the vehicle warranty. Always use only (Continued)
Caution (Continued)
the GM approved tire sealant available through your dealer or included in the vehicle.
TPMS Malfunction Light and Message The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire pressure warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. A DIC warning message also displays. The malfunction light and DIC warning message come on at each ignition cycle until the problem is corrected. Some of the conditions that can cause these to come on are: . One of the road tires has been
replaced with the spare tire. The spare tire does not have a TPMS sensor. The malfunction
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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light and the DIC message should go off after the road tire is replaced and the sensor matching process is performed successfully. See "TPMS Sensor Matching Process" later in this section. The TPMS sensor matching process was not done or not completed successfully after rotating the tires. The malfunction light and the DIC message should go off after successfully completing the sensor matching process. See "TPMS Sensor Matching Process" later in this section.
. One or more TPMS sensors are
missing or damaged. The malfunction light and the DIC message should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer for service.
. Replacement tires or wheels do not match the original equipment tires or wheels. Tires and wheels other than those recommended could prevent the TPMS from functioning properly. See Buying New Tires on page 10-57.
. Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction.
If the TPMS is not functioning properly, it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light and DIC message come on and stay on. TPMS Sensor Matching Process Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the vehicle’s tires or replacing one or more of the TPMS sensors. Also, the TPMS sensor matching process
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should be performed after replacing a spare tire with a road tire containing the TPMS sensor. The malfunction light and the DIC message should go off at the next ignition cycle. The sensors are matched to the tire/wheel positions, using a TPMS relearn tool, in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear. See your dealer for service or to purchase a relearn tool. A TPMS relearn tool can also be purchased. See Tire Pressure Monitor Sensor Activation Tool at www.gmtoolsandequipment.com or call 1-800-GM TOOLS (1-800-468-6657). There are two minutes to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer, the matching process stops and must be restarted.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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Vehicle Care
The TPMS sensor matching process is: 1. Set the parking brake. 2. Place the vehicle power mode in
ON/RUN/START. See Ignition Positions on page 9-20.
3. Make sure the Tire Pressure info
page option is turned on. The info pages on the DIC can be turned on and off through the Settings menu. See Driver Information Center (DIC) on page 5-30.
4. Use the DIC controls on the right
side of the steering wheel to scroll to the Tire Pressure screen under the DIC info page.
5. Press and hold the V (Set/ Reset) button located in the center of the DIC controls. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC screen.
6. Start with the driver side
11. Turn the ignition switch to
front tire.
LOCK/OFF.
7. Place the relearn tool against
12. Set all four tires to the
the tire sidewall, near the valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position.
8. Proceed to the passenger side
front tire, and repeat the procedure in Step 7.
9. Proceed to the passenger side
rear tire, and repeat the procedure in Step 7.
10. Proceed to the driver side rear tire, and repeat the procedure in Step 7. The horn sounds two times to indicate the sensor identification code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.
recommended air pressure level as indicated on the Tire and Loading Information label.
Tire Inspection We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month. Replace the tire if: . The indicators at three or
more places around the tire can be seen.
. There is cord or fabric
showing through the tire's rubber.
. The tread or sidewall is
cracked, cut, or snagged deep enough to show cord or fabric.
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Anytime unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels. If the unusual wear continues after the rotation, check the wheel alignment. See When It Is Time for New Tires on page 10-56
and Wheel Replacement on page 10-61.. The tire has a bump, bulge,
or split.
. The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.
Tire Rotation Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule on page 11-3. Tires are rotated to achieve a uniform wear for all tires. The first rotation is the most important.
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Do not include the spare tire in the tire rotation. Adjust the front and rear tires to the recommended inflation pressure on the Tire and Loading Information label after the tires have been rotated. See Tire Pressure on page 10-48
and Vehicle Load Limits on page 9-15. Reset the Tire Pressure Monitor System. See Tire Pressure Monitor Operation on page 10-51. Check that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications on page 12-2.Use this rotation pattern when rotating the tires.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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{ Warning
Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after time. The wheel could come off and cause an accident. When changing a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, a cloth or a paper towel can be used; however, use a scraper or wire brush later to remove all rust or dirt.
Lightly coat the center of the wheel hub with wheel bearing grease after a wheel change or tire rotation to prevent corrosion or rust build-up. Do not get grease on the flat wheel mounting surface or on the wheel nuts or bolts.
When It Is Time for New Tires Factors, such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell when it is time for new tires. Treadwear indicators appear when the tires have only 1.6 mm (1/16 in) or less of tread remaining. Some commercial truck tires may not have treadwear indicators. See Tire Inspection on page 10-54 and Tire Rotation on page 10-55 for additional information. The rubber in tires ages over time. This also applies to the spare tire, if the vehicle has one, even if it is never used. Multiple factors including temperatures, loading conditions, and inflation pressure maintenance affect how fast aging takes place. GM recommends that tires, including the spare if equipped, be replaced after six years, regardless of tread wear. The tire manufacture date is the last four digits of the DOT Tire Identification Number (TIN) which is molded into one side of the tire sidewall. The first two digits represent the week (01-52) and the last two digits, the
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
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year. For example, the third week of the year 2010 would have a four-digit DOT date of 0310. Vehicle Storage Tires age when stored normally mounted on a parked vehicle. Park a vehicle that will be stored for at least a month in a cool, dry, clean area away from direct sunlight to slow aging. This area should be free of grease, gasoline, or other substances that can deteriorate rubber. Parking for an extended period can cause flat spots on the tires that may result in vibrations while driving. When storing a vehicle for at least a month, remove the tires or raise the vehicle to reduce the weight from the tires.
Buying New Tires GM has developed and matched specific tires for the vehicle. The original equipment tires installed were designed to meet General
Motors Tire Performance Criteria Specification (TPC Spec) system rating. When replacement tires are needed, GM strongly recommends buying tires with the same TPC Spec rating. GM's exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of the vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM's TPC Spec number is molded onto the tire's sidewall near the tire size. If the tires have an all-season tread design, the TPC Spec number will be followed by MS for mud and snow. See Tire Sidewall Labeling on page 10-43 for additional information.
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GM recommends replacing worn tires in complete sets of four. Uniform tread depth on all tires will help to maintain the performance of the vehicle. Braking and handling performance may be adversely affected if all the tires are not replaced at the same time. If proper rotation and maintenance have been done, all four tires should wear out at about the same time. See Tire Rotation on page 10-55 for information on proper tire rotation. However, if it is necessary to replace only one axle set of worn tires, place the new tires on the rear axle.
{ Warning
Tires could explode during improper service. Attempting to mount or dismount a tire
(Continued)
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (58,1)
10-58
Vehicle Care
Warning (Continued)
Warning (Continued)
could cause injury or death. Only your dealer or authorized tire service center should mount or dismount the tires.
{ Warning
Mixing tires of different sizes, brands, or types may cause loss of control of the vehicle, resulting in a crash or other vehicle damage. Use the correct size, brand, and type of tires on all wheels. This vehicle may have a different size spare than the road tires originally installed on the vehicle. When new, the vehicle included a spare tire and wheel assembly with a similar overall diameter as the (Continued)
road tires and wheels, so it is all right to drive on it. The spare tire was developed for use on this vehicle and will not affect vehicle handling.
{ Warning
Using bias-ply tires on the vehicle may cause the wheel rim flanges to develop cracks after many miles of driving. A tire and/or wheel could fail suddenly and cause a crash. Use only radial-ply tires with the wheels on the vehicle.
Winter tires with the same speed rating as the original equipment tires may not be available for H, V, W, Y and ZR speed rated tires. Never exceed the winter
tires’ maximum speed capability when using winter tires with a lower speed rating. If the vehicle tires must be replaced with a tire that does not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction (radial) as the original tires. Vehicles that have a tire pressure monitoring system could give an inaccurate low-pressure warning if non-TPC Spec rated tires are installed. See Tire Pressure Monitor System on page 10-50. The Tire and Loading Information label indicates the original equipment tires on the vehicle. See Vehicle Load Limits on page 9-15 for the label location and more information about the Tire and Loading Information label.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (59,1)
Different Size Tires and Wheels If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, and resistance to rollover may be affected. If the vehicle has electronic systems such as antilock brakes, rollover airbags, traction control, electronic stability control, or All-Wheel Drive, the performance of these systems can also be affected.
{ Warning
If different sized wheels are used, there may not be an acceptable level of performance and safety if tires not recommended for those wheels are selected. This increases the chance of a crash and serious injury. Only use GM
(Continued)
Warning (Continued)
specific wheel and tire systems developed for the vehicle, and have them properly installed by a GM certified technician.
See Buying New Tires on page 10-57 and Accessories and Modifications on page 10-3.
Uniform Tire Quality Grading Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example:
Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration
Vehicle Care
10-59
(NHTSA), which grades tires by treadwear, traction, and temperature performance. This applies only to vehicles sold in the United States. The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading (UTQG) system does not apply to deep tread, winter tires, compact spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (60,1)
10-60
Vehicle Care
All Passenger Car Tires Must Conform to Federal Safety Requirements In Addition To These Grades.
Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and one-half (1½) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.
Traction The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.
Temperature The temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat and its ability to dissipate heat when tested under controlled
conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (61,1)
Vehicle Care
10-61
Warning (Continued)
a crash. Always use the correct wheel, wheel bolts, and wheel nuts for replacement.
{ Caution
The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance, and tire or tire chain clearance to the body and chassis.
Wheel Alignment and Tire Balance The tires and wheels were aligned and balanced at the factory to provide the longest tire life and best overall performance. Adjustments to wheel alignment and tire balancing are not necessary on a regular basis. Consider an alignment check if there is unusual tire wear or the vehicle is significantly pulling to one side or the other. Some slight pull to the left or right, depending on the crown of the road and/or other road surface variations such as troughs or ruts, is normal. If the vehicle is vibrating when driving on a smooth road, the tires and wheels may need to be rebalanced. See your dealer for proper diagnosis.
Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced.
If the wheel leaks air, replace it. Some aluminum wheels can be repaired. See your dealer if any of these conditions exist. Your dealer will know the kind of wheel that is needed. Each new wheel should have the same load-carrying capacity, diameter, width, offset, and be mounted the same way as the one it replaces. Replace wheels, wheel bolts, wheel nuts, or Tire Pressure Monitor System (TPMS) sensors with new GM original equipment parts.
{ Warning
Using the wrong replacement wheels, wheel bolts, or wheel nuts can be dangerous. It could affect the braking and handling of the vehicle. Tires can lose air, and cause loss of control, causing (Continued)
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (62,1)
10-62
Vehicle Care
Used Replacement Wheels
{ Warning
Replacing a wheel with a used one is dangerous. How it has been used or how far it has been driven may be unknown. It could fail suddenly and cause a crash. When replacing wheels, use a new GM original equipment wheel.
Tire Chains
{ Warning
Do not use tire chains. There is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause loss of
(Continued)
Warning (Continued)
control and a crash. Use another type of traction device only if its manufacturer recommends it for the vehicle's tire size combination and road conditions. Follow that manufacturer's instructions. To avoid vehicle damage, drive slowly and readjust or remove the traction device if it contacts the vehicle. Do not spin the wheels. If traction devices are used, install them on the rear tires.
If a Tire Goes Flat It is unusual for a tire to blowout while driving, especially if the tires are maintained properly. If air goes out of a tire, it is much more likely to leak out slowly. But if there ever is a blowout, here are a few tips about what to expect and what to do: If a front tire fails, the flat tire creates a drag that pulls the vehicle toward that side. Take your foot off
the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop, well off the road, if possible. A rear blowout, particularly on a curve, acts much like a skid and may require the same correction as used in a skid. Stop pressing the accelerator pedal and steer to straighten the vehicle. It may be very bumpy and noisy. Gently brake to a stop, well off the road, if possible.
{ Warning
Driving on a flat tire will cause permanent damage to the tire. Re-inflating a tire after it has been driven on while severely underinflated or flat may cause a blowout and a serious crash. Never attempt to re-inflate a tire that has been driven on while severely underinflated or flat.
(Continued)
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (63,1)
Warning (Continued)
Have your dealer or an authorized tire service center repair or replace the flat tire as soon as possible.
{ Warning
Lifting a vehicle and getting under it to do maintenance or repairs is dangerous without the appropriate safety equipment and training. If a jack is provided with the vehicle, it is designed only for changing a flat tire. If it is used for anything else, you or others could be badly injured or killed if the vehicle slips off the jack. If a jack is provided with the vehicle, only use it for changing a flat tire.
If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place, well off the road,
if possible. Turn on the hazard warning flashers. See Hazard Warning Flashers on page 6-4.
{ Warning Changing a tire can be dangerous. The vehicle can slip off the jack and roll over or fall causing injury or death. Find a level place to change the tire. To help prevent the vehicle from moving:
1. Set the parking brake firmly. 2. Put the shift lever in
P (Park).
3. For vehicles with
four-wheel-drive with a N (Neutral) transfer case position, be sure the transfer case is in a drive gear — not in N (Neutral). 4. Turn off the engine and do not restart while the vehicle is raised.
(Continued)
Vehicle Care
10-63
Warning (Continued)
5. Do not allow passengers to
remain in the vehicle.
6. Place wheel blocks,
if equipped, on both sides of the tire at the opposite corner of the tire being changed.
When the vehicle has a flat tire (2), use the following example as a guide to assist in the placement of the wheel blocks (1), if equipped.
1. Wheel Block (If Equipped) 2. Flat Tire
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (64,1)
10-64
Vehicle Care
The following information explains how to use the jack and change a tire.
Tire Changing
Removing the Spare Tire and Tools The equipment needed to change a flat tire is stored in the rear of the vehicle, on the driver side, behind a door in the trim panel.
2. Wing Nut Retaining the
Wheel Blocks
3. Wing Nut Retaining the
Tool Bag
1. Pull to open the trim panel door.
The third row driver side seat may need to be folded to access the trim panel door.
2. Lift the acoustic pad to access
the jack and tools.
1. Jack Knob
3. Turn the wing nut retaining the tool bag (3) counterclockwise to remove it. Pull the tool bag toward the front of the vehicle and lift the rear portion of the bag upward to remove it.
4. Turn the jack knob (1)
counterclockwise to release the jack and wheel blocks from the bracket.
5. Turn the wing nut retaining the
wheel blocks (2) counterclockwise to remove the wheel blocks and the wheel block retainer.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (65,1)
Use the following tools:
To access the spare tire, refer to the following graphics and instructions:
10. Tire/Wheel Retainer 11. Hoist Cable
1. Open the hoist shaft access
door (3) on the bumper to access the spare tire lock (6).
Vehicle Care
10-65
1. Jack 2. Wheel Blocks 3. Jack Handle 4. Jack Handle Extensions 5. Wheel Wrench
1. Hoist Assembly 2. Hoist Shaft 3. Hoist Shaft Access
Cover/Hole
4. Jack Handle Extensions 5. Wheel Wrench 6. Spare Tire Lock 7. Hoist End of Extension Tool 8. Hoist Shaft Access Hole 9. Spare Tire (Valve Stem
Pointed Down)
If equipped with a hitch cover, turn the hitch cover retainers counterclockwise and pull the cover downward to remove it before removing the hoist shaft access door.
2. To remove the spare tire lock
(6), insert the ignition key, turn it clockwise and then pull it straight out.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (66,1)
10-66
Vehicle Care
wrench until the spare tire can be pulled out from under the vehicle.
3. Assemble the two jack handle
4.
extensions (4) and wheel wrench (5), as shown.
Insert the open end of the extension (7) through the hole in the rear bumper (8) (hoist shaft access hole). Be sure the hoist end of the extension (7) connects to the hoist shaft. The ribbed square end of the extension is used to lower the spare tire.
6. Use the wheel wrench hook to
pull the hoist cable closer to assist in reaching the spare tire.
5. Turn the wheel wrench
counterclockwise to lower the spare tire to the ground. Continue to turn the wheel
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (67,1)
Removing the Flat Tire and Installing the Spare Tire 1. Do a safety check before
proceeding. See If a Tire Goes Flat on page 10-62 for more information.
Vehicle Care
10-67
Jacking Locations (Overall View) 3. Position the jack under the
vehicle, as shown.
2. Use the wheel wrench to loosen
all the wheel nuts. Turn the wheel wrench counterclockwise to loosen the wheel nuts. Do not remove the wheel nuts yet.
Left Front Shown, Right Front
Similar
7. Tilt the tire toward the vehicle
with some slack in the cable to access the tire/wheel retainer. Tilt the retainer and pull it and the cable and spring through the center of the wheel. Once the retainer is separated from the guide pin, tilt the retainer and pull it through the center of the wheel along with the cable and latch.
8. Put the spare tire near the
flat tire.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (68,1)
10-68
Vehicle Care
Front Tire Flat: If the flat tire is on a front tire of the vehicle, use the jack handle and only one jack handle extension. Attach the wheel wrench to the jack handle extension. Attach the jack handle to the jack. Position the jack on the frame behind the flat tire where the frame sections overlap. Turn the wheel wrench clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to clear the ground.
{ Warning
Raising the vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle.
Rear Tire Flat: If the flat tire is on a rear tire of the vehicle, use the jack handle (2) and both jack handle extensions (3). Attach the wheel wrench (4) to the jack handle extensions (3). Attach the jack handle (2) to the jack (1). Use the jacking pad (5) provided on the rear axle. Turn the wheel wrench (4) clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to clear the ground.
{ Warning
Getting under a vehicle when it is lifted on a jack is dangerous. If the vehicle slips off the jack, you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack.
Rear Position
4. Remove all of the wheel nuts. 5. Take off the flat tire.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (69,1)
Vehicle Care
10-69
9. Turn the wheel wrench
counterclockwise to lower the vehicle. Lower the jack completely.
10. Tighten the nuts firmly in a
crisscross sequence as shown by turning the wheel wrench clockwise.
Warning (Continued)
an emergency, a cloth or a paper towel can be used; however, use a scraper or wire brush later to remove all rust or dirt.
7. Put the wheel nuts back on with
the rounded end of the nuts toward the wheel after mounting the spare tire.
{ Warning
Never use oil or grease on bolts or nuts because the nuts might come loose. The vehicle's wheel could fall off, causing a crash.
8. Tighten each wheel nut by hand.
Then use the wheel wrench to tighten the nuts until the wheel is held against the hub.
6. Remove any rust or dirt from the wheel bolts, mounting surfaces, and spare wheel.
{ Warning
Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after time. The wheel could come off and cause an accident. When changing a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In
(Continued)
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (70,1)
10-70
Vehicle Care
{ Warning
Wheel nuts that are improperly or incorrectly tightened can cause the wheels to become loose or come off. The wheel nuts should be tightened with a torque wrench to the proper torque specification after replacing. Follow the torque specification supplied by the aftermarket manufacturer when using accessory locking wheel nuts. See Capacities and Specifications on page 12-2 for original equipment wheel nut torque specifications.
{ Caution
Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper
(Continued)
Caution (Continued)
sequence and to the proper torque specification. See Capacities and Specifications on page 12-2 for the wheel nut torque specification.
Storing a Flat or Spare Tire and Tools
{ Warning
Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place.
{ Caution
Storing an aluminum wheel with a flat tire under your vehicle for an extended period of time or with the valve stem pointing up can damage the wheel. Always stow the wheel with the valve stem pointing down and have the wheel/tire repaired as soon as possible.
{ Caution
The tire hoist can be damaged if there is no tension on the cable when using it. To have the necessary tension, the spare or road tire and wheel assembly must be installed on the tire hoist to use it.
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (71,1)
Vehicle Care
10-71
Store the tire under the rear of the vehicle in the spare tire carrier. Refer to the following graphics and instructions to help you:
9. Spare Tire (Valve Stem
Pointed Down)
10. Tire/Wheel Retainer 11. Hoist Cable
1. Put the tire (9) on the ground at the rear of the vehicle with the valve stem pointed down, and to the rear.
2. Tilt the tire toward the vehicle.
Separate the tire/wheel retainer from the guide pin. Pull the pin through the center of the wheel. Tilt the retainer down through the center wheel opening. Make sure the retainer is fully seated across the underside of the wheel.
3. Assemble the two jack handle
extensions (4) and wheel wrench (5), as shown.
1. Hoist Assembly 2. Hoist Shaft 3. Hoist Shaft Access
Cover/Hole
4. Jack Handle Extensions 5. Wheel Wrench 6. Spare Tire Lock 7. Hoist End of Extension Tool 8. Hoist Shaft Access Hole
GMC 2015i Yukon Denali/Yukon XL Denali Owner Manual Localizing-U.S./Canada/Mexico-8431504) - 2015 - CRC - 7/30/14
(GMNA-
Black plate (72,1)
10-72
Vehicle Care
To store the tools, do the following: 1. Return the tools (wheel wrench,
jack handle, and jack handle extensions) to the tool bag.
2. Assemble wheel blocks and jack
together with the wing nut. 3. Position the jack and wheel blocks in the driver side trim panel over the wheelhouse.
4. Turn the jack knob clockwise
until the jack is secured tight in the mounting bracket. Be sure to position the holes in the base of the jack onto the pin in the mounting bracket.
5. Use the retaining bracket to
fasten the tool bag on the stud and turn the wing nut clockwise to secure.
6. Close the trim panel door.
4.
Insert the open end of the extension (7) through the hole in the rear bumper (8) (hoist shaft access hole).
