2007 Nissan Altima electrical problems

Main wiring harness from engine through vehicle to trunk melts or shorts, causing resistance in the cable, abrupt stalling, and total electrical power loss while driving.

When: Highway speeds (60+ mph); one case occurred at 7 years of ownership after regular maintenance

Symptoms owners cite: Shrieking warning beacon with all dashboard indicators lit; Abrupt vehicle stall and complete power loss; Loss of door unlock (mechanical knob only option); Battery fuse melted

Repairs/costs cited: Dealer replaced main wiring harness. One owner reported $3,500+ cost estimate for wiring harness replacement.

Recalls/TSBs owners mention: Complaint #1 owner referenced NHTSA complaint ID 10560398 as similar; no recall mentioned in narratives for this failure mode.

Vehicle experiences complete electrical shutdown—no lights, no engine start, no hazard lights, no ability to function. Often preceded by battery replacement that does not resolve the issue. Dealer diagnostics initially misidentify root cause.

When: Can occur suddenly while parked or after multiple warnings; one case at 5,961 miles, another at 75,000 miles

Symptoms owners cite: Total loss of electrical power (no lights, no engine start, nothing); Vehicle goes completely dead with no warning; Repeated failures even after battery replacement; Dash lights work initially but then full shutdown occurs

Repairs/costs cited: Diagnosis difficult and prolonged; dealers initially blamed body module component, then identified wiring harness. Costs: $3,500+ for wiring harness replacement; $3,100 for ECM, engine wiring harness (EGI), and battery combined.

Instrument panel cracks and melts, likely due to internal electrical heat generation or poor component design.

When: At 82,000 miles

Symptoms owners cite: Instrument panel visibly cracking; Instrument panel melting

Repairs/costs cited: Dealer diagnosis determined instrument panel replacement needed. Owner did not pursue repair.

Dashboard information display flickers intermittently, then completely shuts off and goes blank. Owner notes there is a Technical Service Bulletin (TSB) for this issue.

When: Issue progressed from occasional flickering to complete shutdown

Symptoms owners cite: Display flickers at times; Display completely shuts off and goes blank

Repairs/costs cited: Owner found TSB documentation but had not yet pursued dealership repair at time of complaint.

Recalls/TSBs owners mention: Technical Service Bulletin exists for this issue per owner research.

Engine compartment erupts in flames while driving, causing total vehicle loss. Multiple narratives report fires, some originating from center console electrical components.

When: While driving; one case at low speed (10 mph), another at 65+ mph; one case day after dealership service including brake fluid leak recall repair

Symptoms owners cite: Smoke coming from engine block or center console; Vehicle catches fire and burns completely; Under-carriage erupts in flames

Repairs/costs cited: Vehicles totaled by insurance. Fire department confirmed electrical origin in one case.

Vehicle accelerates suddenly and abruptly at full throttle without driver input, with brakes unable to stop the vehicle. Occurs while attempting to park. Air bags do not deploy despite severity.

When: While attempting to park in garage (February 21, 2010 in one hybrid case)

Symptoms owners cite: Sudden acceleration at full throttle, first forward then backward; Brakes failed or ineffective; Air bags did not deploy

Repairs/costs cited: Nissan inspected vehicle but did not take responsibility. Damage exceeded $30,000 (home, car, personal property).

Recalls/TSBs owners mention: Nissan refused responsibility or accountability.

Push-button start produces clicking noise as if battery is dead (despite new battery), requires multiple presses (7–16 attempts) before car starts. Failure is intermittent ('ghost' problem). Once started, car runs fine.

When: Can occur several days in a row, several times in one day, or not for several weeks; issue present since vehicle purchase in August 2007

Symptoms owners cite: Push button produces click like dead battery; Requires repeated pressing (7–16 times) to start; Intermittent failure with no pattern; Vehicle runs normally once started

Repairs/costs cited: Mechanic's diagnostic test showed nothing wrong. Mechanic suspected starter but found no confirming evidence. Owner suspects ignition switch defect.

Recalls/TSBs owners mention: Owner believes issue related to a Nissan recall but vehicle not part of recall group.

Brake light switch becomes faulty, preventing starter from engaging. Failure occurs multiple times over vehicle lifetime at different service intervals.

When: First failure in 2012, second failure in March 2015 (approximately 3 years apart)

Symptoms owners cite: Starter switch fails to work; Vehicle will not start

Repairs/costs cited: Both failures required brake light switch replacement.

Recalls/TSBs owners mention: Owner suspects recall should be extended to other models to test for brake light/starter switch issue.

Smart key/keyless remote fails to unlock doors. Door actuators stop responding to keyless fob commands. Rear driver side door lock failed in one case and required dealership repair; front door locks later fail similarly.

When: Door lock failures occur with vehicle parked or in motion. Rear driver failure occurred a couple of years before front door failure in same vehicle.

Symptoms owners cite: Keyless fob does not unlock doors; Door locks will not operate with remote; Failure happens all the time, both parked and in motion

Repairs/costs cited: Rear door actuator required dealership repair. Owner suspects either door actuator or broader electrical problem.

Passenger air bag warning indicator illuminates continuously or blinks on dashboard. Dealer resets sensor, but failure recurs after repair. Eventually requires seat cushion and air bag sensor replacement.

When: At 71,300 miles in one case

Symptoms owners cite: Front passenger air bag warning light illuminates continuously; Warning light blinks on dashboard

Repairs/costs cited: First reset by dealer failed; second visit required replacement of passenger seat cushion and air bag sensor ($1,693.55 in one case).

Recalls/TSBs owners mention: NHTSA recall 08V521000 (air bags, electrical system) issued November 8, 2008, but some owners with matching year/make/model were not notified and VINs fell outside recall range.

Cruise control indicator lights blink, disabling cruise function. Initially can be reset by turning vehicle off, but becomes increasingly frequent until blinking becomes constant and reset no longer works. Cruise control eventually ceases to function entirely.

When: Starting in 2011; became more frequent over time; by 2013 blinking was constant 99.99% of the time

Symptoms owners cite: Cruise control lights blink; Cruise control disabled when lights blink; Blinking becomes more frequent over time; Blinking becomes constant and cannot be reset; Cruise control stops working entirely

While driving, all warning lights on dashboard light up simultaneously and speedometer drops to zero. Vehicle continues to operate but instruments are inaccurate. Failure recurs multiple times. Later, speedometer resumes working but transmission does not shift properly and vehicle jerks.

When: While driving on expressway in one case; another case at 65+ mph

Symptoms owners cite: All dashboard warning lights illuminate at once; Speedometer drops to zero or becomes inaccurate; Vehicle jerks and transmission does not shift properly; Failure recurs multiple times

Repairs/costs cited: Mechanics having difficulty troubleshooting problem.

While vehicle is parked, all windows suddenly roll down on six separate occasions. Following day, battery is drained completely.

When: Multiple occurrences while parked at low mileage (5,961 miles failure mileage)

Symptoms owners cite: All windows roll down without command; Battery drained the following day; Pattern repeats on six occasions

Recalls/TSBs owners mention: Dealer stated nothing was wrong with vehicle. Owner went through Better Business Bureau arbitration but did not win case. Owner informed that because arbitration was pursued, vehicle became owner's responsibility.

Vehicle's alarm system activates continuously and without warning at all hours of the day and night. Issue cannot be diagnosed despite four dealership visits (two U.S., two Canada).

When: At 73,000 miles

Symptoms owners cite: Alarm activates constantly without warning; Alarm goes off at all times of day and night

Repairs/costs cited: Vehicle could not be repaired; four dealer visits unable to diagnose.

Automatic ignition starter fails to engage, causing steering wheel to seize. Failure recurs on multiple occasions.

When: At approximately 55,000 miles

Symptoms owners cite: Automatic ignition starter fails; Steering wheel seizes

Repairs/costs cited: Vehicle not diagnosed or repaired.

Transmission speed sensors (primary and secondary) fail due to burning or rubbing caused by improper spacing from manufacturer. Requires replacement of both sensors and addition of new spacers.

Symptoms owners cite: Transmission speed sensor malfunction

Codes mentioned: P1715, P1574, P720

Repairs/costs cited: Both primary and secondary speed sensors replaced, new spacers added. Parts cost $445.13; total invoice with labor and sensor washer $762.83. Owner identified this as manufacturer fault.

Hybrid battery requires replacement, then inverter requires replacement, but vehicle still does not work. Multiple Nissan engineer inspections have not resolved the issue.

Symptoms owners cite: Vehicle stopped starting; Hybrid battery failure; Inverter failure

Repairs/costs cited: Hybrid battery replaced, inverter replaced, vehicle still not working. Nissan engineer inspected vehicle twice (as of October 26) with no resolution.

Hybrid water pump fails, causing loss of power while driving. Toyota has recalled hybrid water pumps for this model year due to known failures, but Nissan dealer refused to acknowledge recall information provided by owner.

When: While driving on highway; failure detected by hybrid warning light

Symptoms owners cite: Hybrid warning light illuminates; Car starts to lose power while driving on highway

Repairs/costs cited: Dealer identified hybrid water pump failure. Owner provided dealer with information about Toyota recall for same part, but dealer refused to contact Nissan or acknowledge recall. Dealer discarded the failed part before owner could retrieve it.

Recalls/TSBs owners mention: Toyota has recall for hybrid water pumps on this model year. Nissan dealer refused to act on or inform Nissan of Toyota recall information. Nissan corporate did not return owner's calls (as of November 20, 2012).