CadillacXT62020Overview/cadillac/xt6/2020/base/

2020 Cadillac XT6

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2020 XT6.

Transmission Automatic (S9)

The 2020 Cadillac XT6 pairs a 5W‑30‑rated power‑train with an automatic (S9) transmission, requiring six quarts of oil for service. Its EPA fuel‑economy rating is 17 city, 24 highway, and 20 combined mpg, and the model logged 36 owner complaints in its debut year — the peak of a five‑year span that falls to eight complaints by 2025, while four recalls have been recorded. This concentration of complaints in 2020 marks the highest point in the vehicle’s reliability history, but the downward trend suggests that subsequent model years have addressed many of the early concerns.

Model year202520242023202220212020

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity6.0 qtOEM · verified
Engine oil type5W-30OEM · verified
Lug nut torque140.0 ft-lbsOEM · verified
EPA fuel economy17/24/20 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 94R AGM VRLA battery is required. · 730 CCA battery, OE oil filter 12693541. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 94R AGM VRLA battery is required. · 730 CCAOEM · verified
Tire size235/55R20 102HOEM · verified
Wheel / rim8; Optional: 8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter12693541
Engine air filter23321606
Spark plug12646780
Battery88864542
Front wiper blades84586337 alt 84580859
Serpentine belt12649097
Cabin air filter13508023

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S9)

Dimensions & weight NHTSA vPIC

Overall length198.8 in
Overall width77.2 in
Overall height68.9 in
Wheelbase112.6 in
Curb weight4689 lb
Track (front / rear)66.5 / 66.1 in
Weight distribution (front / rear)55/45

Ratings & economy EPA / vPIC

EPA city / highway / combined17 / 24 / 20 mpg
DrivetrainAll-Wheel Drive
Recommended fuelRegular Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the XT6 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.4–7.2 sec0–60 mph (tested)quickest 6.40 sec — 2020 Sport
YearTrim / engine0–60¼ mileHPDrivetrain
2020Sport 3.6L V66.40 sec15.10 sec310 hpAWD
2020Sport 3.6L V66.80 sec15.20 sec310 hpAWD
2020Sport 3.6L V67.20 sec15.60 sec310 hpAWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 6.0 qt of 5W-30 engine oil, DOT 3 brake fluid. Torque lug nuts to 140.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Automatic Transmission FluidDEXRON®-VI Automatic Transmission Fluid.
Automatic Transmission Fluid Capacity5.3-6.3
Brake FluidDOT 3
Brake Fluid Capacity1.00
Engine CoolantDex-Cool
Engine Coolant Capacity13.6
Engine Oil5W-30
Engine Oil Capacity6.0 qt

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)6.6 ft-lbs
Oxygen (O2S) Sensor Bolt(s)31.0 ft-lbs
Knock Sense (KS) Bolt(s)18.0 ft-lbs
Torque Converter Bolts44.0 ft-lbs
Engine Valve Cover Bolts11.0 ft-lbs

Chassis torques

Differential Fill Plug29.0 ft-lbs
Differential drain Plug29.0 ft-lbs
Driveshaft Flange to TransmissionSlip Drive ft-lbs
Lug Nuts140.0 ft-lbs
Transfer Case Fill Plug29.0 ft-lbs
Transfer Case Drain Plug29.0 ft-lbs
Automatic Transmission Drain Plug8.8 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.035 in
Spark Plug Torque13.0 ft-lbs

Battery & A/C

RefrigerantR1234yf
Oil GroupPAG
Standard BCI Group Number94R AGM VRLA battery is required.
Standard BCI Cranking Performance730 cca

Service checks

Key ON Engine OFF (KOEO)50.0-100.0
Engine Compression100
Engine Oil Pressure10 psi @ idle, 20 psi @ 2,000 rpm psi
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Brake Caliper Bolt to Carrier Torque53.0
ABS Sensor TorqueFront: 6.6; Rear: 6.6
Vented Rotor Minimum Thickness for ReplacementFront: 1.063; Rear: 0.827
Vented Rotor Minimum Thickness after RefinishFront: 1.102; Rear: 0.866
Vented Rotor Maximum Scoring Depth0.059
Variation from Parallelism Thickness VariationFront: 0.001; Rear: 0.002
Maximum Rotor Runout0.002

Multi-step torque procedures OEM · verified

Steering Track (Rod End) Bolts — tightening sequence 1 stages
190°-100°
Front Wheel Hub — tightening sequence 1 stages
174.0 ft. lbs., 65°-75°74 ft. lbs
Rear Wheel Hub — tightening sequence 1 stages
174.0 ft. lbs., Step 2: 15.0°-30°74 ft. lbs
Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 45°15 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
118.0 ft. lbs. Step 2: 110°18 ft. lbs
Crankshaft Pulley and/or Center Bolts — tightening sequence 1 stages
174.0 ft. lbs. Step 2: 150°74 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 45°22 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
118.0 ft. lbs. Step 2: 18.018 ft. lbs
Oil Pump to Cylinder BLock Bolts/Studs — tightening sequence 1 stages
111.0 ft. lbs. Step 2: 110°11 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 97,500 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miAccelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Air Filter Element (inspect)
Every 15,000 miWindshield Wiper Blade (replace)
Every 22,500 miCabin Air Filter (replace)
Every 45,000 miEngine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect)
Every 75,000 miHood Hinge (inspect)
Every 97,500 miSpark Plug Wires (inspect) · Spark Plugs (replace)
At 150,000 miAccessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2020 Cadillac XT6 shows 36 complaints and 4 recalls, the highest complaint count and recall number among the years examined, with a single investigation. 2021 and 2022 see a decline to 18 and 14 complaints respectively, and recall counts drop to 2 and 3, indicating a gradual improvement after the 2020 peak. 2023‑2025 continue this downward trend, with complaints falling to 13, 14, and 8 and recalls stabilizing at 2 or 1. The 2020 model’s top complaint areas—Power Train and Back Over Prevention (each 5 complaints)—highlight specific concerns, though no crash or fire complaints were reported that year. Overall, 2020 sits at the apex of the complaint/recall arc for this generation, suggesting that newer models have benefited from issue resolution; therefore, a 2020 XT6 may carry more legacy issues than later years.

4
Open recalls
NHTSA campaigns
855
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
36
Owner complaints
0 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★★
Rollover★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 36 complaints on record, top 8 components.

Power Train5
Back Over Prevention5
Unknown Or Other3
Electrical System3
Fuel/Propulsion System1
Unknown Or Other,Engine1
Tires1
Engine1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 4 campaigns on record for this vehicle.

20V639000Fuel System, Gasoline:Delivery:Fuel PumpReported 15/10/2020

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles. The fuel pump's jet nozzle may have a plastic burr remaining from the… Remedy: GM will notify owners, and dealers will replace the fuel pump module. The recall began November 16, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer…

20V446000Air Bags:Side/Window:Curtain:InflatorReported 30/07/2020

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser… Remedy: GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at…

Technical service bulletins NHTSA · verified

Showing 5 of 855 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIT3271Q2026-04-01Unknown Or OtherThis preliminary information communicates information about how to determine if a wheel…
PIP61042026-03-09Unknown Or OtherThis Preliminary information communicates the steps on how to save a GDS2 Session Log and…
PIP4902V2026-03-09Unknown Or OtherThis preliminary information advises a dealer on how to email GDS2 session logs into…
PIT6425D2026-03-02Unknown Or OtherThis Preliminary information communicates to the field on how to diagnosis a GPS issue…
PIP5841H2026-02-04Unknown Or OtherThis Preliminary information communicates the potential for condensation to freeze up…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific XT6. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2020 XT6 take?

6.0 qt of 5W-30 Use GM Dexos 1 Oil or equivalent, per the factory manual.

Does the 2020 XT6 have open recalls?

NHTSA lists 4 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the XT6 get?

EPA figures are 17 city / 24 highway / 20 combined mpg.