NHTSA lists 1 safety recall and 19 owner complaints for the 2006 Cadillac Escalade Ext. Most complaints involve electrical system (5) and service brakes (3). The EPA rates it 13 mpg combined.
CERTAIN TRUCKS AND SPORT UTILITY VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SHIPPED WITH TIRE AND LOADING INFORMATION LABELS LISTING AN INACCCURATE VEHICLE CAPACITY WEIGHT.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“ENGINE STARTED MISFIRING WHILE ON HIGHWAY. ENGINE LIGHT CAME ON AND WAS BLINKING. I PULLED OFF THE ROAD AND HAD THE CAR TOWED TO DEALER. THE RESULT IS #6 AND #8 ARE MISFIRING AND ALSO WERE TOLD THAT 2 MANIFOLD BOLTS ON RIGHT SIDE OF ENGINE WERE BROKEN OFF IN ENGINE BODY. IF THEY CANNOT GET THE BOLTS TO BACK OFF THEY WILL HAVE TO PULL THE HEAD TO DRILL THEM OUT ON THE INSIDE.”
“TL* THE CONTACT OWNS A 2006 CADILLAC ESCALADE. WHILE DRIVING 30 MPH, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN IT WAS DEPRESSED. THE BRAKE PEDAL WAS PUMPED EXTENSIVELY TO COAST THE VEHICLE OFF THE ROAD. THE CONTACT INSPECTED THE VEHICLE AND FOUND THAT THE BRAKE LINES WERE FRACTURED, WHICH CAUSED BRAKE FLUID TO LEAK. THE DEALER (JOSEPH CHEVROLET, 8733 COLERAIN AVE, CINCINNATI, OH 45251, (513) 904-4110) WAS CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 86,000.”
“VEHICLE STOPS RUNNING. ENGINE DIES HAPPENED FOUR TIMES, THREE TIMES AT 70 TO 80 MPH ON 6 LN. FREEWAY HAVE TO TRY AND STEER AND USE BRAKES WITH NO POWER. ONCE TO THE SIDE OF THE ROAD LET SIT FOR A FEW MINUTES AND IT STARTS UP AGAIN. HAVE HAD IT TO THE DEALER AND THEY SAY THEY HAVE NO IDEA WHAT IS WRONG WHEN THEY PUT ON THE COMPUTER. I FEEL THAT HIS IS EXTREMELY DANGEROUS! IT COULD GET US KILLED ALONG WITH ANY ONE ELSE CLOSE BY THAT HITS US.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Escalade Ext AWD Auto 4-spd, 8 cyl, 6.0 L · 4-Wheel or All-Wheel Drive | 12 | 16 | 13 | $5,950 | 684 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 19 complaints with NHTSA. The most-cited components are electrical system (5), service brakes (3), engine (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2006 Cadillac Escalade Ext at 13 mpg combined, depending on engine and drivetrain (1 version rated).