2010 CADILLAC DTS spare tire location

It is recommended that the vehicle is taken to yourdealer/retailer for service if the headlamps need to bere-aimed. It is possible however, to re-aim theheadlamps as described.
Notice:To make sure the headlamps are aimedproperly, read all the instructions before beginning.Failure to follow these instructions could causedamage to headlamp parts.
The vehicle should:
•Be placed so the headlamps are 25 ft. (7.6 m) from
a light colored wall.
•Have all four tires on a level surface which is level
all the way to the wall.
•Be placed so it is perpendicular to the wall.
•Not have any snow, ice, or mud on it.
•Be fully assembled and all other work stopped while
headlamp aiming is being performed.
•Be normally loaded with a full tank of fuel and one
person or 160 lbs (75 kg) sitting on the driver seat.
•Have all tires properly inflated.
•Have the spare tire is in its original location in the
vehicle.
Headlamp aiming is done with the vehicle’s low-beamheadlamps. The high-beam headlamps will be correctlyaimed if the low-beam headlamps are aimed properly.
To adjust the vertical aim:
1. Open the hood. SeeHood Release on page 6-11for more information.
2. Find the center line running through the lens of theheadlamp.
3. Record the distance from the ground to the centerline running through the lens of the headlamp.
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At the same time a message to check the pressure in aspecific tire appears on the Driver Information Center(DIC) display. The low tire pressure warning lightand the DIC warning message come on at each ignitioncycle until the tires are inflated to the correct inflationpressure. Using the DIC, tire pressure levels canbe viewed by the driver. For additional information anddetails about the DIC operation and displays seeDIC Operation and Displays on page 4-62andDICWarnings and Messages on page 4-67.
The low tire pressure warning light may come on in coolweather when the vehicle is first started, and thenturn off as you start to drive. This could be an earlyindicator that the air pressure in the tire(s) are gettinglow and need to be inflated to the proper pressure.
A Tire and Loading Information label, attached to yourvehicle, shows the size of your vehicle’s originalequipment tires and the correct inflation pressure foryour vehicle’s tires when they are cold. SeeLoading theVehicle on page 5-18, for an example of the Tire andLoading Information label and its location on yourvehicle. Also seeInflation - Tire Pressure on page 6-54.
Your vehicle’s TPMS can warn you about a low tirepressure condition but it does not replace normaltire maintenance. SeeTire Inspection and Rotation onpage 6-62andTires on page 6-46.
Notice:Using non-approved tire sealants coulddamage the Tire Pressure Monitor System (TPMS)sensors. TPMS sensor damage caused by usingan incorrect tire sealant is not covered by thevehicle warranty. Always use the GM approved tiresealant available through your dealer/retailer.
Factory-installed Tire Inflator Kits use a GM approvedliquid tire sealant. Using non-approved tire sealantscould damage the TPMS sensors. SeeTire Sealant andCompressor Kit on page 6-71for information regardingthe inflator kit materials and instructions.
TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of theTPMS sensors are missing or inoperable. When thesystem detects a malfunction, the low tire warning lightflashes for about one minute and then stays on forthe remainder of the ignition cycle. A DIC warningmessage is also displayed. The low tire warning lightand DIC warning message come on at each ignitioncycle until the problem is corrected. Some of theconditions that can cause the malfunction light and DICmessage to come on are:
•One of the road tires has been replaced with the
spare tire. The spare tire does not have a TPMSsensor. The TPMS malfunction light and DICmessage should go off once you re-install the roadtire containing the TPMS sensor.
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When It Is Time for New Tires
Various factors, such as maintenance, temperatures,driving speeds, vehicle loading, and road conditionsinfluence when you need new tires.
One way to tell when it istime for new tires is tocheck the treadwearindicators, which willappear when your tireshave only 1/16 inch(1.6 mm) or less of treadremaining.
You need new tires if any of the following statementsare true:
•You can see the indicators at three or more places
around the tire.
•You can see 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.
•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 orlocation of the damage.
The rubber in tires degrades over time, even if they arenot being used. This is also true for the spare tire, ifyour vehicle has one. Multiple conditions affect how fastthis aging takes place, including temperatures, loadingconditions, and inflation pressure maintenance. Withproper care and maintenance tires will typically wear outbefore they degrade due to age. If you are unsureabout the need to replace your tires as they get older,consult the tire manufacturer for more information.
Buying New Tires
GM has developed and matched specific tires for yourvehicle. The original equipment tires installed onyour vehicle, when it was new, were designed to meetGeneral Motors Tire Performance Criteria Specification(TPC Spec) system rating. If you need replacementtires, GM strongly recommends that you get tires withthe same TPC Spec rating. This way, your vehiclewill continue to have tires that are designed to give thesame performance and vehicle safety, during normaluse, as the original tires.
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{WARNING:
Storing the tire sealant and compressor kit 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 the tire sealant and compressor kit in its
original location.
If this vehicle has a tire sealant and compressor kit,there may not be a spare tire, tire changing equipment,and on some vehicles there may not be a place tostore a tire.
The tire sealant and compressor can be used totemporarily seal punctures up to1⁄4inch (6 mm) in thetread area of the tire. It can also be used to inflatean under inflated tire.
If the tire has been separated from the wheel, hasdamaged sidewalls, or has a large puncture, the tire istoo severely damaged for the tire sealant andcompressor kit to be effective. SeeRoadside Service onpage 8-7.
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