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Brake System Defect - Reduced Brake Assist or Unexpected Braking
brake pedal problem; reduced braking; unexpected braking; brake warning light
Safety2023
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6 NHTSA recalls: brake loss, airbag defect, infotainment freezes. If your Volvo C40 Recharge keeps returning to the dealer, you may have a lemon-law claim.
You paid well over $50,000 for a Volvo C40 Recharge. The badge promised Scandinavian safety, Google-powered technology, and zero-emission driving. What many owners have gotten instead is a touchscreen that goes black without warning, a rearview camera that refuses to appear on reverse, a 12V battery that dies overnight, and in the most serious documented cases, a vehicle that cannot stop while coasting downhill in the very driving mode Volvo marketed as its signature feature.
The 2022-2026 C40 Recharge arrived as a sleek CMA-platform cousin to the XC40 Recharge, sharing the same Android Automotive Operating System (AAOS) that would go on to generate lawsuits, federal investigations, and six separate NHTSA recalls across four model years. NHTSA has recalled the C40 for brakes (twice), telematics, an airbag manufacturing defect, and the rearview camera (twice). A December 2025 federal class action (Leonberg v. Volvo Cars USA LLC, NJ 2:25-cv-18948) named the 2022-2025 C40 Recharge among eleven models with an alleged systemic AAOS software defect. A second 2025 class action targeted the related XC40 Recharge for unintended acceleration caused by Battery Energy Control Module failure, same CMA electrical architecture.
California's Song-Beverly Consumer Warranty Act was written for situations like this: where a manufacturer sells a vehicle with known defects, issues recalls that fail to fully cure the problem, and leaves owners making repeated dealer visits without a permanent fix. If your C40 Recharge has been back to the dealer two or more times for the same problem, or has spent more than 30 calendar days out of service in the first 18 months, you may have a lemon-law case worth exploring.
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
warning light; recall notice; repeated dealer repair
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
Touchscreen goes black and is unresponsive; center display freezes mid-drive; Google Built-In navigation crashes; audio cuts out completely; rearview camera fails to display on reverse; wireless Android Auto drops connection; voice commands unresponsive; system requires hard reboot to recover
12V Battery Critical Charging Fault warning on DIM; 'Vehicle Power Reduced' or 'Reduced Performance Max Speed Limited' message; vehicle fails to start after sitting overnight; multiple electronic systems drop offline; infotainment resets on startup; ADAS features disabled; key-fob does not unlock vehicle
Displayed range drops 10-15% within 2-3 years; DC fast charger sessions abort at 70-80% state of charge; charge-port ring flashes red; 'Error charging' on screen; charging session fails to initiate on Level 2 or DC fast charger; vehicle overestimates remaining range in warm weather, underestimates in cold
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 23V012 disables ABS, Electronic Stability Control, and traction control — three systems that prevent loss of directional control under hard braking or slippery conditions. Under Song-Beverly, a safety-standard impairment is among the strongest bases for a lemon-law claim: the vehicle is not performing as warranted under California law when its brake safety systems are unreliable. If a dealer performed the OTA update but ABS or ESC warning lights returned, each subsequent visit for the same brake-control malfunction is a countable repair attempt. The later 25V392 recall (brake loss on downhill one-pedal use) compounds the brake-system record for 2023 C40 owners.
Volvo will release an over-the-air (OTA) BCM2 software update, free of charge. Owner notification letters are expected to be mailed March 15, 2023. Owners may contact Volvo Car customer service at 1-800-458-1552. Volvo Car's number for this recall is R10217.
warning light; recall notice; repeated dealer repair
NHTSA 23V188 affects the Telematics and Connectivity Antenna Module (TCAM): a false 'e-Call Service Required' warning masks any real emergency-call system failure, meaning the vehicle's automatic crash-notification system may be silently inoperable. California lemon law does not require the defect to cause a crash; it requires only that the vehicle fails to conform to an express or implied warranty during the warranty period. A non-functional e-Call system that was sold as a safety feature constitutes such a non-conformance. Owners should verify the TCAM software update was completed and that the 'e-Call Service Required' warning does not re-appear, since recurrence would indicate the software fix was insufficient.
Dealers will update the telematics and connectivity antenna module (TCAM) software, free of charge. Owner notification letters are expected to be mailed May 16, 2023. Owners may contact Volvo Car's customer service 1-800-458-1552. Volvo Car's number for this recall is R10225.
airbag warning light; passenger airbag may not deploy; SRS warning; occupant detection fault
NHTSA 24V938 covers a driver-side far-side airbag module with improperly crimped clamps, which can cause the airbag to deploy improperly or fail to protect the driver in a crash. Airbag non-conformances are among the highest-priority safety warranties under Song-Beverly because Volvo expressly warrants its occupant protection systems. If the dealer replaced the far-side airbag module under this recall, confirm the repair is documented in the service record — that visit establishes a warranty-repair event. If any occupant-detection or airbag warning light has appeared since the recall repair, that is a separate non-conformance and should be brought in immediately as an additional repair attempt.
Dealers will replace the driver's side inner FSAB, free of charge. Owner notification letters were mailed January 24, 2025. Owners may contact Volvo Car customer service at 1-800-458-1552. Volvo Car's number for this recall is R10296.
Touchscreen goes black and is unresponsive; center display freezes mid-drive; Google Built-In navigation crashes; audio cuts out completely; rearview camera fails to display on reverse; wireless Android Auto drops connection; voice commands unresponsive; system requires hard reboot to recover
Song-Beverly requires a defect that substantially impairs use or safety. A repeatedly freezing infotainment system that also disables the rearview camera, turn signals, and ADAS warning alerts crosses from 'functional' into a safety impairment under California case law. If the dealer has reflashed or replaced the IHU twice without lasting resolution, the repair-attempt clock may be running — and the parallel class action (Leonberg, Dec 2025) signals Volvo had prior knowledge, strengthening a willful-failure argument.
TSB C00012 complimentary iCup software upgrade (if ≥3 updates missed); OTA software push; hard reboot (hold Home button until Volvo logo appears). Persistent cases may require Infotainment Head Unit (IHU) replacement.
12V Battery Critical Charging Fault warning on DIM; 'Vehicle Power Reduced' or 'Reduced Performance Max Speed Limited' message; vehicle fails to start after sitting overnight; multiple electronic systems drop offline; infotainment resets on startup; ADAS features disabled; key-fob does not unlock vehicle
A vehicle that fails to start or enters reduced-power mode repeatedly due to 12V battery drain substantially impairs use and value — a textbook Song-Beverly trigger. Because the TSB (36845.1.4) acknowledges the defect at the platform level, Volvo cannot credibly claim the problem is 'normal' or owner-caused. Three or more dealer visits for the same starting or power-reduction failure, without a durable fix, establishes the repair-attempt threshold under California lemon law.
TSB 36845.1.4: VIDA DTC capture, 12V load test, battery replacement if below spec, parasitic drain investigation. Software update to TCAM or OTA modules may resolve recurring drain. Some owners require 12V battery replacement under warranty.
Displayed range drops 10-15% within 2-3 years; DC fast charger sessions abort at 70-80% state of charge; charge-port ring flashes red; 'Error charging' on screen; charging session fails to initiate on Level 2 or DC fast charger; vehicle overestimates remaining range in warm weather, underestimates in cold
If DC fast-charging failures recur after multiple dealer visits without a lasting remedy, and the owner cannot reliably charge for travel, that substantially impairs the use of an electric vehicle — the primary value proposition of the car. Volvo's 8-year/100,000-mile HV battery warranty means warranty coverage is active for most current owners; repeated warranty repairs that fail to fix the issue can stack as lemon-law repair attempts. Document every failed charge session with date, location, charger network, and error code.
OTA BMS/charging-logic software update (Volvo has released multiple updates per model year). Dealer VIDA scan to identify cell-balance anomalies. If capacity loss exceeds warranty threshold (8-year/100,000-mile battery warranty covers excessive degradation), HV pack module replacement.
Sudden unexpected braking at highway speeds with no obstacle present; City Safety collision-avoidance fires on empty road, bridge, or highway overpass; Pilot Assist adaptive cruise disengages abruptly without reason; 'Collision Avoidance Service Required' warning; forward collision warning chime activates falsely; vehicle decelerates sharply in open traffic causing rear-end risk from following drivers
Phantom braking — unexpected autonomous deceleration in live traffic — constitutes a safety impairment under Song-Beverly, not merely a 'functional' annoyance. If a dealer cannot replicate the event (a common outcome with sensor-fusion failures), California lemon law does not require replication; the owner's documented pattern of incidents is sufficient. Preserve dashcam footage, GPS logs, and any NHTSA complaint submissions as contemporaneous evidence.
Dealer ADAS calibration check and camera/radar sensor inspection; ADAS control module software update via VIDA. If infotainment AAOS instability is causing ADAS module dropouts, iCup software upgrade (TSB C00012) addresses the upstream cause.
No heat in cabin in cold weather despite thermostat set high; 'Parking Climate' error message; climate system switches to emergency resistive heating only; HVAC blows cold air in winter; HV battery range drops sharply in cold; heating system warning light on DIM; 'Climate System Service Required' alert
No cabin heat in cold-weather states is not merely an annoyance — it poses a genuine safety hazard (windshield defogging failure, occupant hypothermia risk) and substantially impairs the vehicle's use. Under Song-Beverly, each dealer visit for HVCH or heat pump failure that does not produce a durable repair counts as a repair attempt. Owners in northern California markets who have experienced multiple cold seasons without reliable heat should document each service visit with mileage, temperature conditions, and the dealer's diagnosis.
HVCH software timer update (Volvo service action for 2021 MY); if hardware failure, HVCH replacement. Heat pump compressor replacement for Plus/Ultimate trim failures. All under powertrain/HV warranty (4-year/50,000-mile; extended coverage applies).
Rearview camera image does not appear when gear shifted to Reverse; camera display freezes on last image from previous drive; blank or black backup camera screen; camera works intermittently and requires gear cycling to recover; 'Camera Unavailable' message on touchscreen
A rearview camera failure is a FMVSS 111 safety violation, not a comfort feature failure. Under Song-Beverly, a safety-standard violation combined with multiple failed repair attempts (two recall remedies for the same underlying defect) is a strong indicator of a 'substantial impairment of use or safety.' The fact that the first recall fix (25V282) failed and had to be replaced by 25V908 means owners who visited the dealer twice for this issue already have documented repair attempts.
OTA or dealer AAOS software update. 25V282 remedy proved inadequate; 25V908 issued Dec 2025 with revised remedy. Owners who completed 25V282 must also complete 25V908.
Front or rear tires worn to minimum tread depth within 15,000-25,000 miles; outer shoulder wear disproportionate to mileage; tire cupping or scalloping causing vibration or road noise; alignment appears normal at dealer inspection; need for tire replacement significantly earlier than OEM-stated interval
Tire wear alone rarely supports a lemon-law claim because tires are consumables under Song-Beverly. However, abnormally accelerated tire wear can be a supporting symptom in a broader claim if combined with suspension or alignment defects that Volvo has failed to correct. Document wheel alignment printouts at each service visit; if alignment is within spec yet wear is extreme, that pattern may indicate an unacknowledged suspension geometry issue.
No formal TSB or recall. Owner mitigation: rotate tires every 5,000-6,000 miles (not the standard 7,500), upgrade to EV-rated tires at replacement (Michelin Pilot Sport EV, Continental EcoContact 6 EV), and maintain correct inflation per door placard (often higher than ICE equivalent). Alignment and wheel-balance check at each rotation is advised.
Grinding or squealing from rear brakes; vehicle pulls to one side under braking; rear brake drag at low speed; reduced braking effectiveness; brake dust accumulation on rear wheels but not fronts; rear rotor surface rust visible; uneven brake pad thickness front-to-rear
Rear brake adhesion on a vehicle whose primary deceleration system depends on regenerative braking is a design-level safety concern, not owner misuse. TSB TJ36169.3.0 confirms Volvo knew about this platform-wide pattern. If the dealer performs a TSB repair and the symptom returns within a short interval — as is common when the underlying rotor-corrosion cycle recurs — each return visit counts as a repair attempt under Song-Beverly's cumulative standard.
Per TSB TJ36169.3.0: inspect rear pads and rotors; replace if adhered or corroded beyond spec. Advise owner to apply traditional friction braking (not regenerative) once per week at low speed to scrub rotors and prevent recurrence.
remedy available
Volvo Car USA, LLC (Volvo Car) is recalling certain 2023-2024 Volvo C40 vehicles. The clamps may be improperly crimped on the driver's side inner far side air bag module (FSAB), which can cause the air bag to deploy improperly.
remedy available
Volvo Car USA, LLC (Volvo Car) is recalling certain 2023 S60, V60CC, XC60, XC90, XC40, and C40 vehicles. A diagnostic trouble code (DTC) may be falsely detected for the emergency call system (e-call) and display "e-Call Service Required" in the driver information module (DIM).
remedy available
Volvo Car USA, LLC (Volvo Car) is recalling certain 2023 S60, V60, V60CC, V90CC, XC60, XC90, XC40, and C40 vehicles. A diagnostic error in the Brake Control Module 2 (BCM2) may cause a loss of Antilock Brake System (ABS), Electronic Stability Control (ESC), and traction control.
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 is one of the strongest lemon laws in the country — and the C40 Recharge's recall record puts many owners within reach.
WHAT THE LAW REQUIRES: Song-Beverly applies to California purchases and leases. Volvo must be unable to repair a defect substantially impairing use, value, or safety after a reasonable number of attempts — presumed to be two for death/injury-risk defects (brake failure, airbag malfunction) or four for other warranty defects, or 30 or more cumulative days out of service.
HOW THE C40 RECHARGE FITS: The recall history alone may establish eligibility. A 2023 C40 covered by both brake recalls (23V012 + 25V392) has two documented brake-system repair attempts. The two-recall camera chain (25V282 → 25V908) creates two FMVSS 111 safety-violation visits. Either sequence, combined with continuing symptoms, triggers the Song-Beverly presumption.
WHAT YOU CAN RECOVER: Volvo must replace or repurchase the vehicle at the original purchase price minus a mileage offset. You may also recover incidental damages (rentals, towing, financing costs). If Volvo willfully failed to comply — as the Leonberg class action alleges — you may be entitled to up to two times actual damages.
ON ARBITRATION: California law prohibits mandatory pre-dispute arbitration clauses in consumer warranty disputes. Do not allow any Volvo representative to require their internal program before you seek independent legal counsel.
“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.
The most frustrating words a C40 Recharge owner hears are: 'We could not replicate the concern.' This happens constantly with touchscreen freezes, phantom braking, 12V battery drain, and One Pedal Drive brake anomalies — all intermittent and software-driven.
1. VIDEO EVERY EVENT IN REAL TIME. The moment a symptom occurs, record your phone showing the warning and dashboard (date/time stamp visible). For braking anomalies, note GPS location, speed, outside temperature, state of charge, and driving mode (One Pedal Drive, B mode, or D).
2. FILE AN NHTSA COMPLAINT IMMEDIATELY. Visit nhtsa.gov/report-a-safety-problem. This creates a government-timestamped record independent of the dealer's repair order. Reference the recall number (25V392 for brake-loss; 25V282/25V908 for camera) even if your VIN was not originally covered — NHTSA uses complaints to expand recall scope.
3. PUT YOUR REPAIR REQUEST IN WRITING. Email or text the service advisor before drop-off. Reference the applicable TSB or recall (e.g., 'Possible TSB C00012 — infotainment black screen'). If they later write 'no concern found,' you have written proof of what was requested.
4. DEMAND THE FULL VIDA/DTC PRINTOUT. Intermittent faults leave stored DTCs even after they clear. If the advisor says 'no codes found,' ask why the stored DTC history was not retrieved and noted in the repair order.
5. REJECT 'UPDATED SOFTWARE' AS THE ONLY REPAIR DESCRIPTION. Insist the repair order document your specific symptom and the corrective action. A software version change is not a root-cause repair for lemon-law record purposes.
6. LOG EVERY DAY OUT OF SERVICE. Under Song-Beverly, 30 or more cumulative days out of service within 18 months creates a lemon-law presumption. Track drop-off and pick-up dates for every visit.
The C40 Recharge drives beautifully, earns strong safety ratings, and the CMA platform is genuinely capable. The problem is its electronics. The AAOS has been demonstrably unstable across four model years, generating six recalls, a federal class action, and persistent owner complaints. Most troubling is the brake record: two separate recalls for two separate brake-software defects, the second serious enough that NHTSA publicly told owners not to drive the car.
For California owners making repeated dealer visits without a lasting fix, the lemon-law math is straightforward: document service history, tally days out of service, and seek an independent legal assessment. The C40 Recharge recall record suggests Volvo is still resolving platform defects that should have been resolved before the car reached consumers.
— The Margarian Law team
If your Volvo C40 Recharge has been to the dealer multiple times for brake warnings, infotainment failures, camera malfunctions, or charging problems without a lasting fix, you may have options under California lemon law. Margarian Law has handled thousands of lemon-law cases — including complex EV software and electrical defects — and offers a free, no-obligation case review. Contact us today.
The C40 Recharge runs on Volvo's Android Automotive Operating System (AAOS), which has a documented software instability that causes the center display to freeze, go black, or crash — particularly when the vehicle has missed several OTA software updates. Volvo addressed this with TSB C00012, which authorizes a complimentary infotainment software upgrade at no cost if your car has missed three or more scheduled updates. A hard reboot (hold the Home button until the Volvo logo appears) can temporarily recover the screen. However, if your touchscreen continues to freeze after the TSB upgrade, or if the failure also causes your rearview camera, ADAS warnings, or turn-signal indicators to malfunction, that pattern crosses from a nuisance into a documented safety concern. A December 2025 class-action (Leonberg v. Volvo Cars USA LLC, NJ 2:25-cv-18948) alleges Volvo knew of the defect platform-wide and failed to disclose it. Two or more dealer visits for the same freeze/black-screen issue without a lasting fix may support a Song-Beverly lemon-law claim. Document every event with video and the date.
Yes — the C40 Recharge has two separate brake-related recalls, and both are serious. The first, NHTSA 23V012 (January 2023), recalled certain 2023 C40 models for a Brake Control Module 2 software error that could disable ABS, traction control, and Electronic Stability Control. The second, NHTSA 25V392 (June 2025), is more critical: NHTSA issued an urgent public warning stating that 2023 C40 BEV vehicles might completely lose brake function after coasting downhill in One Pedal Drive mode for more than 1 minute and 40 seconds without pressing the brake pedal. NHTSA advised owners not to drive until the software update was applied. To check if your specific VIN is covered, visit nhtsa.gov/recalls and enter your 17-digit VIN. If your vehicle was covered by both recalls, that means two brake-system warranty repairs — which, combined with any continuing symptoms, may satisfy the lemon-law threshold for a safety-related defect under Song-Beverly (two repair attempts presumed unreasonable for death/injury-risk defects).
Yes. The rearview camera failure on C40 Recharge models is covered by two separate NHTSA recalls: 25V282 (May 2025) and its replacement, 25V908 (December 2025). Both stem from the same Android Automotive Operating System (AAOS) defect that prevents the camera image from loading when the vehicle is shifted to Reverse, violating Federal Motor Vehicle Safety Standard No. 111 on rear visibility. The first software remedy (25V282) proved inadequate, requiring a second recall. If you completed the 25V282 repair, you must also complete 25V908 — return to your Volvo dealer and reference both recall numbers. If the camera failure persists after 25V908, that third service visit for the same underlying defect is strong evidence for a lemon-law claim: you have a documented FMVSS safety violation that Volvo's own recall remedies have failed to cure. Log the date of every visit and confirm with the dealer that the repair order references the specific recall number.
The '12V Battery Critical Charging Fault' or 'Vehicle Power Reduced' warning indicates that the C40 Recharge's auxiliary 12V battery — which powers all electronics except the drive motors — has dropped below critical voltage. Unlike traditional cars with alternators, the C40's 12V battery is recharged via a DC-DC converter from the high-voltage pack. Software bugs in always-on CAN bus modules (including the Telematics and Connectivity Antenna Module) can create parasitic drain that depletes the 12V battery during parking. Volvo acknowledged this platform-wide with TSB 36845.1.4, which directs dealers to run VIDA diagnostics, perform a 12V battery load test, and investigate parasitic draw sources. Immediate steps: do not ignore the warning; if the car starts, drive directly to a Volvo dealer and ask for a VIDA scan and TSB 36845 diagnostic. If the car will not start, contact Volvo Roadside at 1-800-638-6586 for towing. If the dealer replaces the battery and the fault returns within months, that is a recurring warranty defect — document each visit as a lemon-law repair attempt.
Yes. California's Song-Beverly Consumer Warranty Act does not require the dealer to successfully replicate your defect — it requires only that you presented the vehicle for repair of a defect that substantially impairs its use, value, or safety. A 'cannot duplicate' (CDN) repair order still counts as a repair attempt. For intermittent C40 Recharge defects like touchscreen freezes, phantom braking, and 12V battery drain, the key is documentation: video of each event (with date and time stamp), a written service request describing the specific symptom, and a copy of every repair order whether or not the dealer found a fault. You should also file an NHTSA complaint at nhtsa.gov/report-a-safety-problem for each safety-related event — this creates a government-timestamped record independent of the dealer's notes. If the C40 Recharge has been presented for the same concern four or more times (or two or more for a death/injury-risk safety defect), or has been out of service 30 or more cumulative days, the lemon-law presumption under Song-Beverly is triggered regardless of what appears on the repair orders.
No cabin heat on the C40 Recharge in cold weather most commonly indicates a failure of the High-Voltage Coolant Heater (HVCH) or, on Plus/Ultimate trim vehicles, the heat pump compressor. The HVCH is a known high-failure component shared across the CMA-platform BEV family (C40, XC40, and the related Polestar 2). Volvo issued a service action for a specific HVCH timer software defect on 2021 model-year vehicles; 2022-2025 owners have reported similar hardware failures. When the HVCH fails, the vehicle may display 'Parking Climate Service Required,' blow ambient-temperature air, or fall back to a less capable resistive heating element that cannot maintain cabin temperature in sub-freezing conditions. This is not just an annoyance in California's mountain or high-desert markets: a failed defroster is a visibility safety hazard. Bring the vehicle to a Volvo dealer and ask for an HVCH diagnostic under the powertrain warranty (4-year/50,000-mile). If the HVCH is replaced and the problem recurs in a subsequent cold season, that is a second repair attempt for the same defect — document it as a potential lemon-law repair attempt.
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