What are the most common Cadillac XT4 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Cadillac XT4 has 8 documented issues. The most frequently reported are: Fuel Pump Control Module Failure Causes Sudden Stall and Crank-No-Start (P203F), Daytime Running Light / Turn Signal LED Module Overheats and Burns Out, 9T50 Clutch Pop in Low Gears on Deceleration and Refusal to Engage 9th Gear. Of these, 1 is rated critical and should be addressed promptly.
Is the Cadillac XT4 reliable?
The 2021 Cadillac XT4 has 8 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Fuel Pump Control Module Failure Causes Sudden Stall and Crank-No-Start (P203F). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Cadillac XT4 problems?
Repair costs for known Cadillac XT4 issues range from $50 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Fuel Pump Control Module Failure Causes Sudden Stall and Crank-No-Start (P203F), typically costs $600-$1,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2021-2025 Cadillac XT4 Fuel Pump Control Module Failure Causes Sudden Stall and Crank-No-Start (P203F)?
The fuel pump power control module (FPCM), mounted under the vehicle near the fuel tank on 9-speed 2.0T LSY XT4s, fails internally and stops commanding the in-tank pump. The failure is typically abrupt with no preceding driveability symptoms: the engine cuts out at speed or refus… Repairs typically run $600-$1,500. Severity: high.
What is the 2019-2021 Cadillac XT4 Daytime Running Light / Turn Signal LED Module Overheats and Burns Out?
The front DRL and turn-signal LED module in the XT4 headlamp assembly runs hot and fails. Owners report the light first going dim, then dead, and at least one teardown found the modules had been assembled with no heatsink thermal compound between the LED board and its heat spread… Repairs typically run $300-$1,200. Severity: medium.
What is the 2019-2024 Cadillac XT4 9T50 Clutch Pop in Low Gears on Deceleration and Refusal to Engage 9th Gear?
Two related 9T50 nine-speed complaints that are distinct from the coolant-contamination shudder: first, a clutch-like pop or jerk in first through third gear while decelerating, present from new on some vehicles; second, the transmission never selects 9th gear in normal automatic… Repairs typically run $150-$1,200. Severity: medium.
What is the 2019-2022 Cadillac XT4 LSY 2.0T Camshaft Carrier / Cam Cover Seal External Oil Leak Down the Passenger Side?
On the 2.0L LSY turbo, the camshaft carrier assembly bolts between the cylinder head and the cam cover, and its sealing surface (along with the intake manifold gasket area) develops an external oil leak, usually discovered during a routine oil-change multipoint inspection between… Repairs typically run $1,200-$3,500. Severity: medium.
What is the 2019-2025 Cadillac XT4 2.0T LSY Engine - PCV and Turbo Coolant Line Issues?
The XT4 uses the 2.0T LSY engine which is an evolution of the LTG found in the ATS/CTS. The LSY has improved reliability but shares some issues including PCV system problems and turbo coolant line leaks. The turbo coolant lines can develop leaks at the connections, causing coolan… Repairs typically run $200-$1,500. Severity: medium.
What is the 2019-2022 Cadillac XT4 "Service All Wheel Drive System" Message and Loss of AWD From Front Axle Disconnect Actuator?
AWD XT4s use a twin-clutch rear drive unit with a front-axle disconnect that decouples the driveshaft for fuel economy. When the disconnect actuator, its position sensor, or the rear drive unit clutch control fails, the driver information center posts "Service All Wheel Drive Sys… Repairs typically run $400-$2,500. Severity: medium.
What is the 2019-2025 Cadillac XT4 2.0L Turbo Excessive Oil Consumption?
The 2.0L turbocharged engine in the XT4 consumes oil at a higher-than-expected rate, with some owners reporting a quart consumed every 2,000-3,000 miles. The issue is related to the piston ring design and turbocharger oil scavenge system. GM has not issued a formal service bullet… Repairs typically run $50-$2,000. Severity: medium.
What is the 2020-2025 Cadillac XT4 Front Brake Squeal on First Stops of the Day and When Backing Out (TSB 20-NA-002)?
A loud high-pitched squeal comes from the front brakes at low speed, most reliably on the first few stops of the morning and when backing out of a garage, then disappears for the rest of the drive cycle. Inspection consistently finds the pads have plenty of material left and the… Repairs typically run $150-$500. Severity: low.
