34/100
2003Midsize CarsPremium

2003 Cadillac CTS

EPA ID: 18642
16
City MPG
19
Combined MPG
19MPG· Below Avg
24
Highway MPG

Fuel Economy Overview

The 2003 Cadillac CTS achieves an EPA-estimated 19 MPG in combined city and highway driving, with 16 MPG in the city and 24 MPG on the highway. Powered by a 3.2L 6-cylinder engine paired with a automatic 5-spd, this midsize cars features Rear-Wheel Drive drive.

In terms of environmental impact, the 2003 CTS produces approximately 468 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this CTS has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,650, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $7,500 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.

Energy DNA

Vehicle ClassMidsize Cars
Fuel TypePremium
Engine3.2L 6-cyl
AspirationNaturally Aspirated
TransmissionAutomatic 5-spd
Drive TypeRear-Wheel Drive

Green Scorecard

CO2 Emissions468 g/mi
Start-Stop SystemNot Equipped
GHG Score-1/10
Smog RatingN/A
Est. Annual Cost$3,650
5-Year Cost DeltaSave $7,500

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.

Your Real MPG
18.8
Impact vs EPA
+$26
/ year
💨

Aerodynamic Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost
$791/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$22,400
47.2%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$13,816
29.1%
Estimated Insurance
Based on vehicle class risk profile
$10,840
22.8%
State Registration Fees
Based on National Average DMV base rates
$400
0.8%
Total 5-Year Cost$47,456

Recall Intelligence

Campaign #14V394000·2014-09-15
critical
Component: ELECTRICAL SYSTEM:IGNITION

This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 2, 2014 that they are recalling 554,328 model year 2003-2014 Cadillac CTS vehicles manufactured August 16, 2001, to April 28, 2014, and 2004-2006 Cadillac SRX vehicles manufactured March 20, 2003, to August 11, 2006. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

Consequence & Remedy

Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.

Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 15, 2014. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 14172.

Campaign #10V105000·2010-05-04
critical
Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

GENERAL MOTORS HAS NOTIFIED NHTSA OF A DEFECT IN CERTAIN MODEL YEAR 2003-2007 CADILLAC CTS VEHICLES CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON D.C., WEST VIRGINIA AND WISCONSIN. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE FRONT BRAKE HOSE FITTING AT THE CALIPER MAY CORRODE DUE TO SNOW OR WATER, CONTAINING ROAD SALT OR OTHER CONTAMINANTS, ENTERING AND BEING RETAINED IN THE ROUTING SLEEVE. IF THE FITTING CORRODES SIGNIFICANTLY, THE BRAKE HOSE-TUBE INTERFACE MAY DEVELOP A LEAK.

Consequence & Remedy

Consequence: THE BRAKE HOSE-TUBE INTERFACE MAY RUPTURE SUDDENLY WITHOUT PRIOR WARNING AND INCREASE VEHICLE STOPPING DISTANCE MAY OCCUR INCREASING THE RISK OF A CRASH.

Remedy: DEALERS ARE TO REPLACE BOTH FRONT BRAKE HOSE ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MAY 2010. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.

Campaign #03V250000·2003-08-20
advisory
Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

CERTAIN MINIVANS, PASSENGER AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEM." THE OWNER'S MANUAL DOES NOT EXPLAIN THE MEANING OF THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT LOWER UNIVERSAL ANCHORAGE SYSTEM.

Consequence & Remedy

Consequence: THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.

Remedy: OWNERS WILL BE PROVIDED WITH A SUPPLEMENT FOR THEIR OWNER'S MANUAL. THIS SUPPLEMENT DESCRIBES AND SHOWS THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT ANCHORS THAT ARE LOCATED IN THE VEHICLE AND ON THE CHILD RESTRAINT OR BOOSTER CUSHION. OWNER NOTIFICATION BEGAN AUGUST 18, 2003. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080, CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, PONTIAC AT 1-800-620-7668, OR OLDSMOBILE AT 1-800-630-6537.

Campaign #03V115000·2003-03-20
critical
Component: STEERING

SOME PASSENGER VEHICLES HAVE A CONDITION IN WHICH THE INTERMEDIATE STEERING SHAFT BOLT MAY BE LOOSE.

Consequence & Remedy

Consequence: AN IMPROPERLY TIGHTENED BOLT COULD LOOSEN, RESULTING IN SEPARATION OF THE UPPER AND LOWER STEERING SHAFTS CAUSING A LOSS OF VEHICLE CONTROL. IF THIS HAPPENS WHILE THE VEHICLE IS MOVING, A CRASH COULD RESULT WITHOUT PRIOR WARNING.

Remedy: DEALERS WILL INSPECT FOR THE PRESENCE OF THE INTERMEDIATE STEERING SHAFT BOLT AND ENSURE THAT IT IS TIGHTENED TO THE PROPER SPECIFICATION. OWNER NOTIFICATION BEGAN MARCH 20, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CADILLAC AT 1-800-458-8006.

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Looking for comprehensive historical data?

NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Cadillac CTS configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$3,650
vs. Avg Vehicle (5 yrs)Save $7,500

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City16 MPG
Highway24 MPG
Combined19 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

93.5 metric tons CO₂
Equivalent To:
🌳 116 tree seedlings grown for 10 yrs
✈️ 7.8 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.