2019 Honda Accord electrical problems

Complete loss of engine power or stalling at highway speeds (65–75 mph), forcing the vehicle to coast to the shoulder. Owners cite cylinder misfires and blown head gaskets confirmed at dealerships. Affects vehicle control and creates collision risk in heavy traffic.

When: 65–75 mph on highways; some incidents within first 5,500 miles; others between 27,000–74,000 miles; recurring despite repairs

Symptoms owners cite: Engine shuts off or loses all power mid-highway; RPM drops to zero or stays at 0; Vehicle unable to accelerate or maintain speed; Check engine light illuminates; Car enters limp mode (max 40 mph); Cylinder misfire codes pending after restart

Codes mentioned: P0300 (random misfire), P0301 (cylinder 1 misfire), P0304 (cylinder 4 misfire), P0302 (cylinder 2 misfire), P0303 (cylinder 3 misfire)

Repairs/costs cited: Dealerships cited head gasket replacement, engine replacement, turbo replacement (reported cost $3,000–$4,500+); fuel pump recalls issued for some units; some repairs repeated within days or weeks

Recalls/TSBs owners mention: Honda TSB A21-052 exists for limp-mode issues in rain/wet conditions; fuel pump recall issued; owners report Honda stating no fix exists for some intermittent issues; one owner reported class action lawsuit filed against Honda for turbo/head gasket failures

Safety system components activate unprovoked on open road (collision mitigation braking engages with no vehicle ahead; lane-keep assist activates when traveling straight), fail to respond when needed, or become intermittently inoperable. Systems slam brakes or swerve vehicle without threat; dealer diagnostics cannot reproduce the fault.

When: Recurring throughout ownership; some as early as 4,300 miles; intermittent, often after restart clears warning temporarily

Symptoms owners cite: Collision mitigation braking activates without vehicle in front; emergency braking engages without cause; Adaptive cruise control malfunctions; Lane-keep assist and road departure mitigation trigger on straight roads; Vehicle brakes applied suddenly (dropping speed from 75 mph to below 50 mph); Warning messages appear ('See dealer'); Systems reset after vehicle restart

Codes mentioned: Collision Mitigation Braking System Problem, Adaptive Cruise Control System Problem, Lane Keeping Assist System Problem, Road Departure Mitigation System Problem

Repairs/costs cited: Front camera and sensor replacement attempted; failures recurred after replacement; dealers unable to diagnose when warning light not actively displayed; some owners disabled all safety sensors to avoid further incidents

Recalls/TSBs owners mention: May 2019 software update promised to fix the issue for 10th-gen Accords but did not; Honda corporate and dealers state no permanent fix available yet; TSB noted for wet-condition misfire/limp-mode but does not address CMBS false activation

Digital gauge cluster, heads-up display, and infotainment system (radio, navigation, phone) black out, freeze, or reboot during operation. Tachometer (RPM gauge) goes blank, leaving driver unable to monitor engine RPM. Issue persists across multiple cluster replacements and software updates.

When: Starting at 5,259 miles; recurring between 1,200–1,800 miles intervals; as recent as November 2020 at 19,804 miles; happens randomly during accessory mode or while driving

Symptoms owners cite: Digital portion of instrument cluster goes blank; RPM gauge displays as blank while engine running; Radio/infotainment system freezes or goes black; Heads-up display crashes; Screen restarts itself; Audio, phone, navigation, voice assist become unavailable

Repairs/costs cited: Gauge cluster replaced multiple times (3–5 dealer visits); software updates applied; problem persists despite hardware replacement; suspected software bug based on pattern across multiple units

Recalls/TSBs owners mention: Dealers replaced cluster hardware and applied updates; Honda has not identified root cause; owners report similar symptoms on dealer forums suggesting systemic issue

All or most safety and brake system warning lights illuminate at once on dashboard—brake system, electric power steering, tire pressure monitoring, vehicle stability assist, electric parking brake, collision mitigation, adaptive cruise, supplemental restraint system—often without corresponding mechanical failure. Warnings clear only after restart.

When: Intermittent, recurring throughout ownership; some as early as 8,000 miles; can occur at startup, during operation, or after heavy rain/wet conditions

Symptoms owners cite: Multiple warning lights flash simultaneously (10+ at once reported); Brake system warning appears with no brake issues found; Electric power steering warning with no steering problems; TPMS warning while tires are normal; Warnings clear after vehicle restart; Pattern repeats after restart or subsequent drive

Codes mentioned: Brake System Problem, Electric Power Steering Reduction Problem, Tire Pressure Monitor System Problem, Vehicle Stability Assist Problem, Electric Parking Brake System Problem, Brake Hold System Problem, Supplemental Restraint System Problem

Repairs/costs cited: Battery replacement attempted; dealers unable to diagnose root cause; no repairs have resolved the issue permanently

Recalls/TSBs owners mention: Honda customer service informed one owner this is a 'known issue' but no fix is available; dealerships have not identified or addressed the underlying cause

Fuel pump does not deliver adequate fuel to engine, preventing starting or causing stalling. Fuel injectors malfunction, triggering misfire codes and lighting all safety systems. Multiple owners report both fuel pump and injector failures before 80,000 miles. Fuel pump recall issued but not communicated to all owners; one owner paid $8,600 in repairs before learning recall existed.

When: As early as 2 years post-purchase; under 80,000 miles; one owner at approximately 64,000–74,000 miles reported blown head gasket within 8 months

Symptoms owners cite: Engine will not start or start with difficulty; Insufficient fuel pressure detected; Fuel not delivered to engine; Car stalls during operation; All safety lights illuminate when injectors fail; Vehicle loses all power when fuel injector fails

Codes mentioned: Cylinder misfire codes (in cases where injector malfunction triggers cascade)

Repairs/costs cited: Fuel pump replacement (recall); fuel injectors replaced (one owner spent $8,600 on multiple fuel pump replacements before recall issued); parts frequently unavailable for extended periods

Recalls/TSBs owners mention: Fuel pump recall issued; one owner reported part availability problems for months and dealer unable to confirm diagnosis; one owner reported both fuel pumps (vehicle has two) failed and both were replaced

Doors fail to lock or unlock via key fob or interior buttons. One driver was unable to unlock doors to rescue a trapped child. Door latch mechanisms become stuck in intermediate position, unresponsive to electronic commands. Manual lock override required.

When: Intermittent; one documented case at approximately 3 years post-purchase

Symptoms owners cite: Key fob does not unlock/lock doors; Interior unlock buttons unresponsive; Doors lock/unlock inconsistently; Single door stuck between locked and unlocked; Manual manipulation of lock latch required to unlock; Child trapped inside vehicle; parent unable to open doors

Repairs/costs cited: No repairs attempted in most cases; one child's emergency rescue required physical access through driver-side door after several minutes of failed electronic unlock attempts

Recalls/TSBs owners mention: Dealership failed to identify problem during diagnostic appointment despite documented incident; owner reports this is a common problem in Honda forums

Vehicle Stability Assist modulator fails, causing loss of power, jerking acceleration response, and inability to maintain highway speed. Failure occurred with fewer than 800 miles on vehicle, indicating manufacturing defect.

When: Fewer than 800 miles; on highway during early morning rain

Symptoms owners cite: Vehicle bogging on highway before exit; Gas pedal stops working properly; Car loses speed despite depressed accelerator; 3-second delay before vehicle responds to throttle input; Jerking in intended direction of motion; Complete loss of responsive acceleration

Repairs/costs cited: Dealership diagnosed as VSA modulator failure; vehicle towed to dealership for repair

Recalls/TSBs owners mention: Dealership performed repair; no information on warranty coverage or root cause analysis

Vehicle enters limp mode (severe speed restriction, max 40 mph) in rain or wet conditions, forcing reduced power output despite no mechanical fault detected. TSB A21-052 exists for 2.0T Accord models but issue also affects 1.5T owners.

When: During or after rain; one documented case at 27,000 miles; occurs on wet highways; recurs despite TSB application

Symptoms owners cite: Check engine light flashes; Vehicle enters limp mode (max 40 mph); Unable to exceed 40 mph despite full throttle; Codes: P0300, P0301, P0304; Clears after vehicle restart; Recurs in rain/wet conditions

Codes mentioned: P0300 (random misfire), P0301 (cylinder 1 misfire), P0304 (cylinder 4 misfire)

Repairs/costs cited: TSB A21-052 referenced by owners; application of TSB did not resolve issue in all cases

Recalls/TSBs owners mention: Honda TSB A21-052 addresses limp-mode issue; dealers have provided incorrect diagnosis (traction control engagement) instead of acknowledging TSB; some dealers failed to apply TSB despite owner insistence

Brake system warning lights and 'brake system problem' messages illuminate despite functional brakes. In one case, brake pedal pulsated while warning displayed; brake system otherwise operated normally. Warnings appear in cascade with other electrical faults.

When: Intermittent; recurring; as early as within first month of ownership

Symptoms owners cite: Brake system warning light illuminates; Brake performance warning appears; Brake pedal pulsates while warning is active; Actual brake function normal despite warning; Warnings clear after restart or battery replacement

Codes mentioned: Brake System Problem, Brake System Hold Problem, Brake System Performance Reduced

Repairs/costs cited: Battery replacement attempted (defective cell); problem persisted; no root cause identified

Recalls/TSBs owners mention: Honda customer service informed owner this is a 'known issue' with no fix available

Airbags fail to deploy in multiple collisions despite impact severity warranting deployment. Driver reports three accidents with no airbag deployment; now receives false airbag fault codes. Safety critical failure.

When: Multiple incidents across different accidents; false code appears after non-deployment events

Symptoms owners cite: No airbag deployment in collision at ~55 mph (truck ran stop sign, driver-side impact); No airbag deployment in other two accidents; False airbag code now appearing on dashboard; Concern about spontaneous airbag deployment from faulty code

Codes mentioned: Default airbag code (after non-deployment history)

Repairs/costs cited: No repairs completed; owner reports ongoing issue unresolved by dealership and Honda customer service

Recalls/TSBs owners mention: Dealership and Honda reportedly giving 'run around' without substantive response or diagnosis

Collision mitigation braking system activates without cause at stop light (no vehicle in front), brakes vehicle, and illuminates hazard lights. Separate incident: car loses power and cannot accelerate, forcing emergency flag-down by highway patrol.

When: One incident at traffic light after battery replacement; one highway incident at 65+ mph

Symptoms owners cite: Vehicle brakes itself at stop light with no car in front; Hazard lights activate automatically; Following vehicle forced to swerve to avoid collision; Car loses power and cannot accelerate on highway; Stereo system flickering and rebooting concurrent with brake issues

Codes mentioned: Brake system warning, CMBS system problem (inferred from symptoms)

Repairs/costs cited: Battery replaced; issue recurred after battery replacement

Recalls/TSBs owners mention: Honda customer service stated this is a 'known issue' with no fix available

Engine shuts off or loses RPM completely when driving uphill in snow, creating severe loss of control and collision hazard. Vehicle does not respond to throttle input. Dealer claims no records of similar issues; recommends disabling traction control as 'fix'.

When: While driving uphill in snow in Ohio/WV region

Symptoms owners cite: Engine shut-off or complete loss of RPMs going uphill in snow; Vehicle loses all power; No response to accelerator input; Complete loss of vehicle control on incline; Prior warnings: brake system and adaptive cruise control beeping non-stop; Warning lights displayed that are not in the manual

Repairs/costs cited: Dealer recommended disabling traction control; owner states traction control was already off during incident

Recalls/TSBs owners mention: Dealer stated no records of similar issues and said warnings can appear while vehicle remains 'safe' to drive; however, complete engine shut-off indicates actual safety defect, not warning anomaly

Head gasket fails and blows at very low mileage (under 80,000 miles, some under 75,000 miles), requiring engine replacement or major head gasket repair. Occurs at 2–3 years post-purchase. Multiple owners report this is a widespread issue in 1.5L turbo Accords, with class action lawsuit mentioned.

When: 2–3 years post-purchase; at 64,000–74,000 miles; one owner had gasket inspected at 64,000 miles with no issues; failed 8 months later at 74,000 miles

Symptoms owners cite: Engine overheating; Loss of power; Unable to accelerate; Multiple cylinder misfire codes; All dashboard warning lights illuminate; Vehicle stalls or severely loses power; Check engine light comes on (week prior in some cases)

Codes mentioned: P0300 (random misfire), Cylinder misfire codes

Repairs/costs cited: Head gasket replacement required; some owners told entire engine replacement needed (cost not specified but described as major); one owner reported $3,000+ turbo replacement cost; repairs not covered by warranty in some cases

Recalls/TSBs owners mention: One dealership blamed owner for not using dealership for service; owners report class action lawsuit filed against Honda for 1.5L turbo head gasket failures; Honda refuses to issue recall; one owner reports Honda statement that this is a 'common issue' to extreme extent but no recall issued

Backup camera display shows colorful artifacts, noise, or corruption, making it difficult to observe obstructions and vehicles while reversing. Also reported: reverse camera pulls up on screen while driving for extended periods.

When: After weeks or months of normal operation

Symptoms owners cite: Colorful artifacts displayed on backup camera screen; Image corruption preventing clear view of obstacles; Reverse camera display appears on screen during highway driving (unintended); Reduced visibility when backing up

Repairs/costs cited: Not yet inspected; owner researching; appears to be common in 2019 Honda models based on online research

Recalls/TSBs owners mention: None documented

When engine stalls on highway, steering wheel locks up, preventing steering control. Combined with loss of power, creates uncontrollable vehicle situation and collision hazard.

When: During engine stall on highway

Symptoms owners cite: Engine stalls in middle of road; Steering wheel locks up simultaneously; Driver unable to steer vehicle; Loss of power steering assistance; Vehicle in collision risk during lock-up

Repairs/costs cited: No repairs documented; owner reports insurance claim filed ($4.5K in damages)

Recalls/TSBs owners mention: None documented; owner states Honda should be liable for accident given known defect and new car warranty

White spots or blisters appear on paint surface within 3 months of purchase on brand-new vehicle. Dealers blame owner for environmental contamination (acidic rain, tree sap, or chemical damage) despite owner's denial. Dealership dismisses warranty claim.

When: Within 3 months of purchase (May 2019 on March 2019 purchase)

Symptoms owners cite: White spots appear on paint; Paint deterioration visible; Spots spread or increase over time

Repairs/costs cited: Dealership offered to replace infotainment system (which was also problematic) with refurbished unit instead of addressing paint; owner facing cost of paint job on 1-year-old car

Recalls/TSBs owners mention: Honda and dealer blamed environmental contamination; warranty claim denied; dealership suggested damage was owner-inflicted

Stereo system freezes, goes black, reboots while driving. Screen freezing occurs in conjunction with warning lights and brake system issues. Dealer offers refurbished system swap rather than diagnostic repair.

When: Within first year of ownership

Symptoms owners cite: Stereo/infotainment screen goes black; System freezes or becomes unresponsive; Screen reboots while driving; Occurs in conjunction with brake warning lights and stereo flickering; All audio lost when system reboots

Repairs/costs cited: Dealer offered to replace with refurbished system; no diagnostic performed; original system to be transferred to another customer

Recalls/TSBs owners mention: Dealer recommended refurbished unit swap without diagnosing root cause

Rodent damaged soy-based wiring harness in engine bay, causing multiple electrical fault codes and warning lights. Dealer replaced harness but continued failures recurred. Multiple additional wiring harnesses found with rodent damage. Honda has rodent repellent tape part available but service staff unaware of it.

When: Unknown onset; discovered during repair attempt

Symptoms owners cite: Multiple electrical fault codes: electric power steering, brake system, tire pressure monitor; Warning lights illuminate; Brake performance reduced warning; Tire pressure monitor system problem

Codes mentioned: Electric Power Steering System Problem, Brake System Problem, Tire Pressure Monitor System Problem

Repairs/costs cited: Dealer removed intake manifold, throttle body, fuel rail, replaced #3 fuel injector wiring, and entire engine wiring harness. Two additional harnesses with rodent damage found (front bumper and engine-to-body) requiring replacement. VSA system required initialization. Problems recurred after 'repair.' Honda rodent repellent tape available (part #4019-2317) but not offered to customer.

Recalls/TSBs owners mention: Honda manufactures and sells rodent repellent tape, indicating awareness of rodent wiring damage problem, but service staff has no knowledge of tape availability or rodent issue

Lane-keep assist, blind spot monitoring, and collision mitigation systems randomly become inoperative with 'visit dealer' message. Steering wheel controls, exterior headlight controls, turn signals, backup camera, trunk control, and rear defroster also stop working intermittently in same episodes. Issues resolve themselves before dealer visit, preventing diagnosis.

When: Intermittent, recurring throughout ownership; can last minutes to days

Symptoms owners cite: Lane keep assist (LKAS) goes out with visit dealer message; Adaptive cruise control (ACC) becomes inoperative; Blind spot monitoring fails; Exterior headlight controls unresponsive; Turn signal stops working; Backup camera inoperative; Rear trunk control fails; Rear defroster non-functional; Steering wheel controls unresponsive (entire bank); All symptoms clear after hours or days without intervention

Repairs/costs cited: No repairs possible; dealer cannot replicate or find error when vehicle is examined; owner has video evidence of errors

Recalls/TSBs owners mention: None documented; dealer unable to assist

Key fob lock command triggers abnormal alarm sound. All doors and fuel door remain unlocked despite fob command. Vehicle out of warranty; warranty denial received from manufacturer.

When: At 66,000 miles

Symptoms owners cite: Key fob emits abnormal alarm sound when attempting to lock; All doors fail to lock via fob; Fuel door remains unlocked; Central locking system unresponsive

Repairs/costs cited: No diagnosis or repair performed; vehicle out of warranty

Recalls/TSBs owners mention: Manufacturer denied warranty coverage due to vehicle age/mileage

After jump-starting another vehicle, 'charging system failure' notification appeared on instrument panel and remained for 1.5+ years despite no actual charging system problems detected. Owners unable to clear warning without dealership visit.

When: After jump-start event; persisted 1.5+ years

Symptoms owners cite: Charging system failure warning illuminates; Warning persists indefinitely; No actual charging issues detected

Codes mentioned: Charging system failure

Repairs/costs cited: No repairs performed; warning cannot be self-cleared; dealership visit costs $150 to 'check' system

Recalls/TSBs owners mention: None documented; dealership charges diagnostic fee for issue unresolved by software reset

Windshield cracked without warning or visible impact while vehicle in operation. Collision mitigation brake system indicator light illuminated at time of crack.

When: While driving 45 mph; timing coincided with CMBS indicator illumination

Symptoms owners cite: Windshield develops crack without visible impact; Collision mitigation brake system indicator warning light illuminated; No impact event or collision occurred

Codes mentioned: Collision Mitigation Brake System Problem

Repairs/costs cited: Windshield replaced by independent mechanic; cost not specified

Recalls/TSBs owners mention: Manufacturer not contacted; dealer not contacted

RPM gauge on instrument cluster goes blank intermittently during operation, leaving driver unable to monitor engine speed. Issue recurs approximately every 1–2 hours. Reverse camera pulls up on screen unintentionally during highway operation.

When: Recurring every 1–2 hours; approximately 7 times in one month

Symptoms owners cite: RPM gauge displays as blank; Reverse camera activates on screen while driving on highway for 30+ minutes; Both issues have potential safety implications (dashboard visibility, unexpected screen activation); Reverse camera function triggers automatic braking when following car function is active

Repairs/costs cited: Owner describes this as 'pretty dangerous' when following car function causes automatic braking while reverse camera is displayed

Recalls/TSBs owners mention: None documented

Vehicle produces choking sound when starting. Brake pedal goes to floorboard (complete loss of brake pressure). Multiple warning lights illuminate simultaneously upon restart attempt.

When: Startup event; mileage unknown

Symptoms owners cite: Choking sound from engine at startup; Brake pedal goes to floorboard; Lane departure warning illuminates; TPMS warning illuminates; Brake system warning illuminates; Brake hose warning illuminates; Brake performance reduced warning illuminates

Codes mentioned: Lane Departure System Problem, Tire Pressure Monitoring Problem, Brake System Problem, Brake Performance Reduced Problem

Repairs/costs cited: Vehicle able to be driven despite warnings; no diagnosis or repair attempted

Recalls/TSBs owners mention: Manufacturer not informed