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Electronic Brake Boost Sensor Contamination — Recall 20V588 (2020)
brake pedal problem; reduced braking; unexpected braking; brake warning light
Safety2020
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Cadillac XT4 has 8 NHTSA recalls and known TSB issues: oil consumption, 9-speed shudder, fuel pump stall, and phantom braking. California lemon law help — free review.
You chose the Cadillac XT4 because you wanted a premium compact crossover that delivered real luxury without the land-yacht footprint. The badge promised a sophisticated turbocharged powertrain, a plush CUE-equipped interior, and the engineering heritage of America's most storied luxury brand. Instead, a growing number of XT4 owners have found themselves managing an engine that burns through oil between changes, a 9-speed transmission that shudders or refuses to shift into top gear on frigid mornings, and a CUE touchscreen that goes dark at the worst possible moments. Across eight NHTSA recalls spanning 2019 through 2025 model years, GM has acknowledged defects in the brake boost sensor, transmission accumulator, tire production process, seatbelt retractors, driver seat welds, rearview camera module, owner's manual content, and passenger airbag deployment path — nearly every major safety system on the vehicle.
The XT4 shares its 2.0-liter LSY turbocharged engine and 9-speed transmission architecture with the Chevrolet Equinox and GMC Terrain, meaning the documented problem patterns are not unique to one vehicle or one production run — they reflect platform-wide design and manufacturing decisions. Owners of 2021-2024 XT4s have reported fuel pump control module failures that cut engine power at highway speed without warning, a safety event that GM's own emission recall (N252516900) only partially addresses. The 2023 and 2024 model years introduce a new concern: the forward collision avoidance system applying full emergency braking on open roads with no obstacle present, a phantom-braking pattern that NHTSA's own complaint database documents across eight separate 2024 MY incidents. If your Cadillac XT4 has spent more time at the dealership than it deserves, California's lemon law may provide a path to a replacement vehicle, a repurchase, or a cash settlement — at no cost to you.
The issues owners report most, ranked by severity — each one verified against a cited NHTSA source.
brake pedal problem; reduced braking; unexpected braking; brake warning light
transmission shifts unexpectedly; hesitation; harsh shift; transmission warning
warning light; recall notice; repeated dealer repair
driver seat cushion loose; seat fastener recall; seat may not stay secured
driver seat cushion loose; seat fastener recall; seat may not stay secured
backup camera blank; screen goes black in reverse; rearview camera distorted
A settled Margarian Law case on this exact model, published with the actual settlement math.
Open any defect for the symptoms and why it matters for a California lemon-law claim. Each is tied to a cited NHTSA source.
brake pedal problem; reduced braking; unexpected braking; brake warning light
NHTSA recall 20V588000 addresses sensor contamination in the electronic brake boost system that could require significantly increased pedal force to achieve normal braking — a direct safety nonconformity. Under California's Song-Beverly Act, a brake system defect with documented safety risk typically satisfies the 'substantial impairment of safety' standard on the first confirmed repair attempt. Owners of 2020 XT4s who experienced elevated pedal effort before the recall remedy was applied, and who had prior dealer visits for brake complaints, should count those visits in their repair-attempt total.
GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number
transmission shifts unexpectedly; hesitation; harsh shift; transmission warning
Recall 20V668000 covers 2019-2020 XT4 units where missing bolts on the start-stop accumulator endcap cause a transmission oil leak, which can result in total loss of propulsion — a safety nonconformity under Song-Beverly. An XT4 that loses drive power at speed meets the 'substantial impairment of use and safety' standard for lemon-law relief even if the defect caused only one confirmed incident before the recall remedy was completed.
GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer
warning light; recall notice; repeated dealer repair
Recall 21V115000 addresses 2020 XT4 tires that were over-cured during production, increasing the risk of sidewall cracking and tire failure at speed — a safety nonconformity. Because this defect originates in the manufacturing process and presents a blowout risk, it satisfies Song-Beverly's safety-impairment standard. Owners who experienced tire sidewall issues or were denied replacement before the recall was announced should document those prior dealer interactions as repair attempts.
GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac custo
driver seat cushion loose; seat fastener recall; seat may not stay secured
Recall 21V649000 covers 2019-2021 XT4s where rear seat belt retractors may be improperly secured, preventing the belt from functioning correctly in a crash. Seatbelt nonconformities are among the clearest safety impairments under Song-Beverly because GM's own recall acknowledges the defect directly affects occupant restraint. Any 2019-2021 XT4 owner with prior dealer visits for rear seatbelt complaints before the recall remedy should include those visits in a lemon-law repair-attempt count.
Dealers will inspect and tighten the rear seat belt retractors, as necessary, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and Cadillac customer service at 1-800-458-8006. GM's number for this recall is
driver seat cushion loose; seat fastener recall; seat may not stay secured
Recall 22V359000 addresses a 2022 XT4 driver seat cushion frame with an improper weld in the power tilt-adjustment mechanism, which could compromise the seat's ability to restrain the driver in a crash. This is a structural safety defect distinct from the seatbelt fastener issue in iss-04 (21V649000). Song-Beverly does not require a collision to have occurred — the existence of a recalled safety defect on the vehicle is sufficient to establish nonconformity, and a 2022 XT4 owner should ensure the remedy was properly applied and documented.
Dealers will inspect the driver's seat and replace the cushion frame, as necessary, free of charge. Owner notification letters were mailed June 23, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N21
backup camera blank; screen goes black in reverse; rearview camera distorted
Recall 22V868000 covers 2019-2020 XT4s where the video processing module (VPM) loses communication with the rearview camera, eliminating the backup camera image required by Federal Motor Vehicle Safety Standard No. 111. NHTSA opened an investigation in July 2022 after 12 complaints before issuing the December 2022 recall. Owners who experienced backup camera blackouts and returned to the dealer before the recall was announced should document those prior visits — they count toward the repair-attempt total under Song-Beverly.
Dealers will update the VPM software or replace the VPM, as necessary, free of charge. An interim owner notification letter informing owners of the safety defect was mailed January 17, 2023. Owner notification letters were mailed February 3, 2023. Owners may contact Cadillac customer service at 1-80
warning light; recall notice; repeated dealer repair
Recall 24V575000 addresses 2024 XT4s delivered with the wrong owner's manual, which may contain inaccurate safety and operational information. While this is among the least severe defect types, it is a confirmed nonconformity. In the context of a broader 2024 XT4 lemon-law case involving other defects (transmission retaining ring, phantom braking, FPCM issues), the recall establishes that GM acknowledged at least one manufacturing error on the 2024 MY — relevant to demonstrating a pattern of nonconformity.
Dealers will provide owners with the correct manual, free of charge. Owner notification letters were mailed August 26, 2024. Owners may contact Cadillac's customer service at 1-800-458-8006 and Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454040.
warning light; recall notice; repeated dealer repair
Recall 24V795000 affects 2025 XT4s where the instrument panel cover lacks the required perforation on its underside, which could prevent the passenger-side airbag from deploying correctly in a crash. A defective airbag deployment path is a life-safety nonconformity — arguably the most serious structural defect category under Song-Beverly. A 2025 XT4 owner should verify with the dealer that the remedy has been applied and obtain written documentation, as failure to remedy a safety-critical recall within a reasonable time can itself support a lemon-law claim.
Dealers will replace the instrument panel upper cover, free of charge. Owner notification letters were mailed November 29, 2024. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is A242476151.
Low oil warning or dipstick reading below MIN before scheduled oil change interval; oil consumption exceeding 1 qt per 2,000 miles; burning oil smell from engine bay or exhaust; blue-tinged exhaust smoke under acceleration; check engine light with oil-related DTCs; dealer advises to 'top off between changes' rather than repair
Under California's Song-Beverly Act, oil consumption that requires topping off between manufacturer-specified service intervals — especially when the dealer characterizes it as 'within GM specification' rather than repairing it — can constitute a nonconformity that substantially impairs use or value. Each dealer visit for oil level complaints or engine inspection counts as a repair attempt. If three or more attempts fail to resolve documented consumption on a 2019-2023 XT4 within the 18-month/18,000-mile window, the vehicle may qualify for repurchase or replacement.
GM TSB 01-06-01-011O sets the formal oil consumption test protocol: fill to MAX, drive 2,000 miles, re-measure. If confirmed above specification, inspect PCV valve assembly and replace integrated PCV/valve cover if degraded. Piston ring or engine replacement if consumption is severe and no external leak is identified. Cam carrier reseal per TSB 21-NA-240 if cam carrier leak is contributing.
Vibration or shudder felt through the floorboard or seat at 30-50 mph; shaking sensation when accelerating from a stop or during light throttle at low speeds; transmission feels rough or hesitant on gear engagement; shudder may lessen at higher speeds or when throttle is held steady; no warning lights in early stages
Persistent TCC shudder requiring multiple torque converter replacements or transmission-related repairs on a 2020-2025 XT4 within the statutory window can establish a Song-Beverly nonconformity pattern. Because GM's own TSB acknowledges the condition, a dealer's 'cannot duplicate' finding does not insulate GM from liability if the shudder is documented on prior visits.
Scan tool monitoring of TCC engagement pattern to confirm shudder. If TCC shudder confirmed and fluid shows no hardware damage or coolant contamination, replace torque converter. If fluid shows damage, full transmission rebuild or replacement. Transmission fluid exchange (correct Dexron-HP fluid only) recommended as preventive measure.
Transmission refuses to shift into 8th or 9th gear in cold weather (below 0°F / -18°C); engine runs at unusually high RPM at highway speed in winter; reduced power or hesitation on acceleration in extreme cold; check engine light with codes P0299 (underboost), P00C7, P0234, or P0300; auto idle-stop does not engage normally in cold; condition typically resolves after 10-15 minutes of driving
If the ECM calibration update fails to resolve the no-overdrive / high-RPM condition across multiple cold-weather repair attempts, each winter-season dealer visit counts toward Song-Beverly's repair-attempt threshold. Cold-climate XT4 owners who have returned for the same condition two or more times should document each visit with a dated repair order and DTC printout.
ECM calibration (software) update per TSB 18-NA-035 to enable revised cold-weather shift strategy. No hardware replacement required. Clear any stored DTCs after update. Customer education: condition is temperature-dependent and self-resolves within 10-15 minutes. Repeated cold-weather starts will not cause permanent damage once calibration is applied.
Harsh or abrupt transmission engagement on initial acceleration; transmission slipping or hesitating between gears; clunking noise during gear changes; accelerated internal transmission wear; symptoms may appear early in vehicle life on 2024 MY units
A factory-origin component dimensional defect that causes transmission harshness from early in the vehicle's life is a textbook Song-Beverly nonconformity. Because this is a production-quality issue rather than normal wear, the first repair attempt starts the statutory clock. If the condition requires a second visit, the owner may be near the qualifying threshold for a 2024 XT4.
Dealer inspection of transmission retaining ring dimensions per internal GM bulletin. Replace out-of-specification retaining rings. Perform transmission fluid exchange and full functional test post-repair.
Infotainment touchscreen goes completely black; display freezes mid-operation; no audio playback (radio, Bluetooth, or navigation audio); key-detection chime inoperative; condition more frequent in cold weather or on initial cold start; hard reset (hold power button) provides temporary relief; screen may flicker before going black
Infotainment blackout on the 2021 XT4 substantially impairs use because the CUE screen is the sole interface for navigation, backup camera, climate controls, and vehicle settings — not a standalone audio inconvenience. Under Song-Beverly, if software updates fail to provide a durable fix across two or more visits, the owner can argue the condition substantially impairs the vehicle's value.
Radio software update applied at dealer or via over-the-air (OTA) push. Dealer evaluates vehicle to confirm whether software version is current; if not, update is applied. No hardware replacement required in most cases. TSB 21-NA-188 (software V158, June 2022) addressed additional CUE anomalies for 2021-2022.
Engine stalls unexpectedly at highway speed or in traffic without warning; vehicle fails to restart after stall; reduced power or stuttering before stall event; fuel gauge inoperative; check engine light illuminated; loss of all propulsion while driving; condition may trigger 'Service Stabilitrak' warning
A midway stall at highway speed is a direct safety impairment — this is among the strongest lemon-law fact patterns. If the FPCM failure occurs twice, or if a single stall is followed by a protracted repair period (parts on backorder for more than 30 days), Song-Beverly's buyback threshold may be met independently of repair-attempt count. California's 30-day-out-of-service rule provides an alternative path to relief for 2021-2024 XT4 owners with documented downtime.
Diagnose FPCM per TSB PIP5964B. Replace fuel pump control module. Verify fuel system integrity after replacement. Some owners report parts availability constraints (extended backorder) delaying repairs.
Vehicle applies full emergency braking with no obstacle present; sudden hard stop at highway or city speeds without driver input; forward collision alert warning activates and seat vibrates without hazard; brakes 'auto-slam' while merging or on open road; following vehicle may rear-end XT4; dealer reports 'unable to duplicate' — condition appears intermittent
Unintended AEB activation at highway speed poses a direct crash risk to the XT4 and following traffic — this is a safety nonconformity even if no collision has yet occurred. Under Song-Beverly, a substantial impairment of safety is sufficient to trigger lemon-law eligibility independent of repair-attempt count. Owners should document each AEB incident with a dash-cam timestamp, dealer visit repair order, and any related NHTSA complaint filing.
Dealer sensor calibration and radar alignment check. Software update for FCA sensitivity threshold if available. If condition persists, radar module replacement may be warranted. Owners may be advised to disable FCA system as interim measure — not a permanent fix.
Visible oil accumulation on top or sides of engine; burning oil smell from engine compartment; oil residue under hood on firewall or wiring harness; low oil level without confirmed internal consumption; oil spots on driveway under the front of the vehicle; mechanic identifies external leak from camshaft carrier or valve cover area
A recurring external oil leak that returns after dealer repair constitutes a nonconformity under Song-Beverly, particularly when the TSB-acknowledged root cause (improper sealant) suggests a systemic assembly issue rather than normal wear. If the cam carrier is resealed and the leak recurs within the warranty period, that second repair visit counts toward the statutory threshold for lemon-law eligibility.
Apply oil dye and UV trace powder to identify precise leak origin per TSB 21-NA-240. Remove cam carrier and reseal with specified RTV sealant bead per GM service procedure. Replace cam carrier gasket as required. Clear dye from engine and recheck after 500 miles.
remedy available
General Motors, LLC (GM) is recalling certain 2025 Cadillac XT4 vehicles. The instrument panel may be missing the perforation on the underside of the panel cover that allows the passenger-side air bag to deploy properly.
remedy available
General Motors, LLC (GM) is recalling certain 2024 Cadillac XT4 and Chevrolet Malibu vehicles. The vehicles may have the wrong owner's manual in the glove box. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
open
General Motors, LLC (GM) is recalling certain 2019-2020 Cadillac XT4 vehicles equipped with the optional Surround Vision feature. The video processing module (VPM) may lose communication with the rearview camera, causing a loss of the rearview camera image.
remedy available
General Motors, LLC (GM) is recalling certain 2021 Chevrolet Malibu, 2022 Chevrolet Equinox, Blazer and Cadillac XT4 vehicles. The driver's seat cushion frame may have an improper weld in the power tilt-adjustment mechanism.
remedy available
General Motors, LLC (GM) is recalling certain 2016-2021 Chevrolet Malibu and 2019-2021 Cadillac XT4 vehicles. The rear seat belt retractors may be improperly secured with loose or missing fasteners.
remedy available
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
remedy available
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
remedy available
General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
Every item below comes from this vehicle's documented defects. The more you recognize, the more a free case review is worth your time.
California's Song-Beverly Consumer Warranty Act — the state's lemon law — applies to any new vehicle purchased or leased in California that has a defect the manufacturer cannot fix within a reasonable number of attempts. For the Cadillac XT4, the following specific patterns may qualify.
Presumption of lemon status: California presumes a vehicle is a lemon if the same defect has been subject to repair four or more times within 18 months or 18,000 miles (whichever comes first), OR if the vehicle has been out of service for more than 30 cumulative days during that window. For the 2021-2024 XT4, a fuel pump control module failure that requires extended backorder on parts can meet the 30-day threshold independently of repair-attempt count.
Safety defects get faster treatment: Under Song-Beverly, a defect that could cause death or serious bodily injury may require only two repair attempts before triggering the buyback or replacement obligation. The brake boost sensor recall (20V588), the airbag deployment obstruction recall (24V795), a documented mid-highway fuel pump stall, or a phantom emergency braking event at highway speed can each satisfy the safety-defect standard.
Recalls do not waive your rights: GM's completion of a recall remedy does not eliminate a lemon-law claim for the period before the remedy was applied. If your 2019-2020 XT4 had a rearview camera that blacked out on multiple dealer visits before NHTSA recall 22V868000 was issued in December 2022, those visits count.
Attorney fees are mandatory: If you prevail under Song-Beverly, GM must pay your attorney's fees and costs. This means a qualified lemon-law attorney can represent you at no out-of-pocket cost. Margarian Law offers a free case review to assess whether your XT4's repair history qualifies.
“Could not duplicate” doesn't mean the defect isn't real. Here's exactly what to do to protect a potential California lemon-law claim.
Document the moment it happens. Photos, video, and screenshots of any warning lights — with the date and the mileage.
Get a repair order every visit — even “found nothing.” That paperwork is the foundation of a claim.
Check your VIN at nhtsa.gov/recalls. Note any recall that has no available remedy yet.
Track your out-of-service days. California law counts the cumulative days your vehicle spends in the shop.
Keep loaner & rental records. Alternate-transport paperwork during long repairs matters.
Save everything in one place. Symptoms, dates, repair orders, and every repeat visit — the intermittent ones especially.
Dealer says 'cannot duplicate' — here is what to do.
1. Document everything before your visit. Write a detailed symptom description including the date, time, outside temperature, mileage, road speed, and what the vehicle was doing when the problem occurred. For oil consumption, photograph the dipstick reading before and after any top-off. For transmission shudder, record a video with your phone on the passenger seat.
2. Request specific TSB inspection in writing. Present the service writer with the relevant bulletin number and ask that it be documented on the repair order: TSB 01-06-01-011O for oil consumption, TSB 21-NA-240 for the cam carrier leak, TSB 18-NA-035 for cold-weather no-overdrive, and the TCC shudder bulletin for transmission vibration. If the dealer refuses to acknowledge the TSB, that refusal belongs in your notes.
3. Request the formal oil consumption test by name. TSB 01-06-01-011O requires the dealer to fill the engine to the MAX mark, drive 2,000 miles under normal conditions, and re-measure. A dealer who simply 'topped off' and sent you home has NOT performed the TSB-required test. Demand the procedure in writing.
4. For phantom braking events, file directly with NHTSA. Go to safercar.gov and file an owner complaint after every false AEB event. Include your repair order number if the dealer was involved. NHTSA complaint volume drives investigations; your report matters.
5. For fuel pump stalls, keep the service appointment record and ask the dealer to order the FPCM on record — even if the vehicle restarted. A documented parts order creates a paper trail if the part is backordered and your vehicle is out of service for more than 30 days.
6. Escalate to Cadillac Customer Care at 1-800-333-4223 after the second failed repair attempt. Request a case number and the name of the customer assistance representative. Escalation calls are logged and become part of the vehicle's warranty service history — critical evidence in a lemon-law case.
7. Keep every repair order. Never accept a verbal 'all clear.' A repair order that says 'verified customer concern — no fault found' is still a repair attempt under California law. The count starts with the first visit, regardless of outcome.
The Cadillac XT4's recall record — eight campaigns across six model years — is unusually broad for a vehicle in its segment. More troubling is the pattern behind the TSBs: the LSY 2.0T oil consumption issue is platform-wide, the 9-speed transmission has generated multiple successive TSBs without a durable fix, and the 2023-2024 phantom braking complaints are escalating without a regulatory response. The XT4 is not inherently unreliable, but a subset of owners — particularly those in cold climates, or with 2021-2024 model years — have drawn the short straw. If your XT4 has been back to the dealer three or more times for the same issue, California law gives you meaningful leverage. The evidence suggests GM has known about most of these problems long before individual owners started experiencing them.
— The Margarian Law team
If your Cadillac XT4 has been to the dealer multiple times for engine oil consumption, transmission shudder, fuel pump stalls, phantom braking, or any of the eight recalls listed above, you may have options under California's lemon law. Margarian Law has handled thousands of lemon-law cases, including GM vehicles, and offers a free, no-obligation case review. You pay nothing unless we recover for you.
The 2.0L LSY turbo engine in the XT4 — shared with the Chevrolet Equinox and GMC Terrain — has a known oil consumption pattern linked to its PCV (positive crankcase ventilation) check-valve design. GM's own TSB 01-06-01-011O establishes the measurement protocol and states that up to approximately one quart per 2,000 miles is within specification, but many owners report consuming oil at higher rates, particularly in the first 15,000 miles. A separate problem — an improperly sealed cam carrier gasket (addressed by TSB 21-NA-240) — can create an external oil leak that contributes to apparent consumption. If your dealer is telling you to 'just top it off,' request the formal TSB 01-06-01-011O consumption test in writing and document every quart you add. Repeated visits for oil level complaints count as repair attempts under California's lemon law. []
The 9-speed 9T50 or 9T65 automatic transmission in the XT4 has a documented torque converter clutch (TCC) shudder issue. At 30-50 mph, the clutch can produce a vibration felt through the seat, floor, or steering wheel. GM acknowledged this in a service bulletin covering 2020-2025 XT4 units equipped with M3H or M3G transmissions, directing dealers to perform scan-tool monitoring of TCC engagement before replacing the torque converter. A separate January 2021 TSB addressed a faulty clutch spring retaining ring in early production units. If your dealer confirms TCC shudder but the repair does not hold, request a second inspection and obtain documentation each time. Two or more repair attempts for the same transmission defect within 18 months can qualify your XT4 for lemon-law consideration in California. []
A recurring fuel pump control module (FPCM) failure has been documented across 2021, 2022, 2023, and 2024 XT4 model years in NHTSA's owner complaint database. The FPCM can fail without warning, cutting fuel delivery to the engine mid-drive. Owners describe the engine stalling at highway speed, failing to restart, and the fuel gauge going inoperative simultaneously. GM's emission recall N252516900 (2025) covers the 2021-2023 XT4 for a related fuel pump condition. If your XT4 stalled and the FPCM was replaced but the part was backordered for an extended period, California's lemon law has a separate 30-cumulative-day out-of-service trigger — you do not need to return for the same repair four times to qualify. Contact a lemon-law attorney if your vehicle was out of service for more than 30 days for any warranty repair. []
The Cadillac XT4 has eight NHTSA recalls across 2019-2025 model years. The most significant safety recalls are: brake boost sensor contamination (20V588, 2020 MY), transmission accumulator oil leak (20V668, 2019-2020 MY), over-cured tire sidewall risk (21V115, 2020 MY), rear seatbelt retractor fasteners (21V649, 2019-2021 MY), driver seat cushion weld (22V359, 2022 MY), rearview camera module failure (22V868, 2019-2020 MY), incorrect owner's manual (24V575, 2024 MY), and passenger airbag deployment obstruction (24V795, 2025 MY). To check whether your specific VIN is covered, visit nhtsa.gov/recalls and enter your 17-digit VIN. Recall repairs are performed free of charge at any authorized Cadillac dealer. Completing a recall remedy does not waive your right to pursue a lemon-law claim for the period before the remedy was applied. []
If your 2023 or 2024 XT4 is braking hard with no obstacle in the road, the forward collision avoidance (FCA) system may be triggering unintended automatic emergency braking. NHTSA's owner complaint database documents eight separate incidents on 2024 XT4s — owners describe the vehicle stopping at 50-55 mph on open roads with no warning. The FCA radar or camera sensor appears to misidentify stationary objects (bridge supports, overhead signs, parked vehicles) as collision threats. As of mid-2026, no NHTSA investigation or recall has been opened for this specific pattern. After each event, file an NHTSA complaint at safercar.gov and bring the vehicle to the dealer immediately. Document the incident date, location, speed, and any witness information. If the dealer says 'cannot duplicate,' the incident still qualifies as a repair attempt under California law, and the safety-impairment standard may allow a claim after just two events. []
The Cadillac XT4 can qualify under California's Song-Beverly Act if a defect that substantially impairs the vehicle's use, value, or safety has been subject to a reasonable number of repair attempts without success. For the XT4, the most common qualifying patterns are: (1) engine oil consumption or cam carrier oil leak that returns after three or more dealer visits; (2) 9-speed transmission shudder or no-overdrive that persists after two or more repairs; (3) fuel pump control module stall requiring extended backordered parts (30+ cumulative days out of service); (4) rearview camera or brake system defects tied to the eight NHTSA recalls; and (5) phantom AEB activation after two or more incidents, given the direct safety impairment. California law requires GM to repurchase or replace a lemon-law vehicle and pay your attorney's fees — meaning qualified representation typically costs you nothing. []
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