Unknown: EBS comes on as well as the break system problem lights and many more. Vehicle loses power and goes into limp mode. As of now it wont shift from PArking
2016 Acura TLX electrical problems
moderate 21 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
21
Recalls
0
Avg fix
$850
When does it fail?
Of the 21 electrical complaints filed for the 2016 Acura TLX, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 7 model years of Acura TLX in our records for electrical problems, this one ranks #2 by owner-complaint volume.
Electrical accounts for 20% of all owner complaints filed against this vehicle, across 7 categories tracked.
The failure pattern owners describe
Buyer takeaway: A used 2016 TLX carries serious electrical and battery risks: recurrent premature battery failure, idle stop-start malfunction stranding owners mid-drive, and cascading warning lights triggering power loss at highway speeds. Multiple owners report recurring issues even after dealer service and failed recalls.
Owners report a cluster of electrical faults centered on the idle stop-start system, battery failures, and cascading warning lights that sometimes trigger limp-mode deceleration. Many describe the car refusing to restart after idle stop activates, stranding them with dead batteries or requiring jump starts. Battery failures recur within months of replacement; one owner reported two batteries replaced within 18 months, another within a year at 46,000 miles. A tow driver allegedly reported 80 similar calls that year.
When warnings trigger—parking brake system, emissions, brake hold, power steering, hill start assist—the car often loses power mid-drive (at highway speeds) and won't accelerate past 20 mph, forcing hazardous lane changes. Some owners trace the issue to the telematics unit remaining active when the vehicle is off, draining the battery continuously; one disabled it to prevent daily discharge. Owners mention recall notices for idle stop and PGM-FI software updates, but report software unavailability at dealers or incomplete recall work (software applied but starter replacement and valve adjustment refused). Window regulators exhibit intermittent malfunction; backup cameras go blurry suddenly. One vehicle reported odometer discrepancy (86,000 to 259,000 miles) and another total electrical failure deemed unrelated to battery.
Same Acura TLX electrical reports on nearby years: 2015 · 2018 · 2019
Failure modes owners describe
Idle Stop-Start Failure
Car does not restart after idle stop feature activates, leaving owner stranded or requiring jump start. Battery depletes in idle stop event.
When: Occurs on multiple occasions; one owner reports recurring issue across two model years
Symptoms owners cite: Engine fails to restart after idle stop activates; Car remains unresponsive when restart button pressed; Battery goes dead mid-event
Repairs/costs cited: Dealership unable to diagnose root cause in narrative #1; battery replacement performed but issue recurred
Recalls/TSBs owners mention: NHTSA case number assigned; recall notice issued for idle stop; PGM-FI software update referenced in narrative #15 but reported unavailable at dealers as of June 2022
Battery Premature Failure (Recurrent)
Batteries fail repeatedly within 1–2 years despite 5-year warranty. One AAA tow operator reportedly handled 80 calls for this vehicle type with battery issues in one year.
When: 35,246 miles in narrative #5; 46,000 miles in narrative #6; less than one year in narrative #1; November 2018 and March 2020 in narrative #17
Symptoms owners cite: Battery depleted; clicking sound when attempting start; Lights flicker; Vehicle won't start; Battery warning light absent until other warning lights activate
Repairs/costs cited: Battery replacements performed multiple times; one owner replaced battery twice within 18 months despite 5-year warranty
Recalls/TSBs owners mention: Battery replaced under warranty; no root cause investigation documented
Telematics Unit Continuous Drain
Telematics unit remains in ON position even when vehicle is off and attempts Bluetooth connection repeatedly, draining battery daily. Owner disconnected unit as workaround.
When: Narrative #8 documents car dies after one full day of non-operation
Symptoms owners cite: Battery dies after 24 hours of vehicle inactivity; Telematics unit powers on when vehicle is off; Continuous Bluetooth connection attempts
Repairs/costs cited: Owner disconnected telematics as workaround; Acura quoted $1,000 replacement cost but owner uncertain if it resolves issue
Recalls/TSBs owners mention: $1,000 replacement quoted but effectiveness unconfirmed by owner
Power Loss and Limp Mode Under Acceleration
Vehicle loses power during acceleration at highway speed, dropping from 45–70 mph to 20 mph or failing to accelerate despite pressing gas pedal. Multiple warning lights illuminate simultaneously (parking brake, emissions, brake hold, hill start assist, power steering, brake system). Car may shut down.
When: Narratives #2, #3, #4, #5 document multiple occurrences per owner; #5 at 35,246 miles; #16 at 39,462 miles
Symptoms owners cite: Power loss during acceleration; Vehicle deceleration despite pedal input; Multiple simultaneous warning lights (parking brake malfunction, emissions, brake hold, power steering, hill start assist, brake system); Limp-mode operation (reduced speed ceiling ~20 mph); Car shuts down or stalls
Codes mentioned: CHECK HILL START ASSIST SYSTEM, CHECK EMISSION SYSTEM, CHECK POWER STEERING SYSTEM, CHECK BRAKE HOLD SYSTEM, CHECK BRAKE SYSTEM, CHECK PARKING BRAKE SYSTEM
Repairs/costs cited: Narrative #4 cites software update; narrative #5 identified dead battery cell; narrative #18 notes vehicle enters limp mode and won't shift from Park; narrative #16 resolved after restarting vehicle multiple times
Recalls/TSBs owners mention: Narrative #4 reports dealership cited software update requirement (not performed unless customer reports issue) but no recall issued; narrative #13 documents software update applied but customer claims recall incomplete (starter replacement and valve adjustment refused)
Cascading Warning Lights Without Clear Cause
Multiple warning lights illuminate simultaneously—parking brake, emissions, brake system, etc.—with no corresponding functional defect or clear diagnostic cause. Codes clear when battery disconnected but return within days to months.
When: Narratives #3, #5, #10, #16 document occurrences
Symptoms owners cite: Multiple warning lights illuminate at once; No apparent functional failure matching warning; Warning lights clear temporarily when battery disconnected; Warning lights return intermittently
Codes mentioned: Electric Parking Brake Problem, Emissions System Problem
Repairs/costs cited: Narrative #10 documents owner clearing codes by disconnecting/reconnecting battery; warnings return after days, weeks, or months
Recalls/TSBs owners mention: Narrative #3 documents Acura headquarters told owner nothing can be done; recall exists but owner's VIN not listed despite matching recall symptoms
Driver Side Window Auto-Closing Malfunction
Driver side window closes partway then rolls back down when one-touch auto-close button is used. No obstruction or stuck mechanism apparent. Occurs intermittently before finally closing on subsequent attempts.
When: Narrative #9 documents multiple occurrences; passenger window also rolled up autonomously during left turn
Symptoms owners cite: Window closes partway then retracts; Only occurs with one-touch auto-close (not manual operation); No physical obstruction or binding; Intermittent—eventually closes after several attempts; Passenger window rolls up by itself during turns
Backup Camera Sudden Failure
Backup camera display becomes blurry and unusable overnight with no prior warning or gradual degradation. Owner reports safety hazard due to inability to view rear area.
When: Narrative #12 documents abrupt failure between days
Symptoms owners cite: Camera image turns blurry; Sudden failure without warning; Camera previously functional
Driver Door Inner Lock Inoperative
Front driver side door cannot be unlocked from inside the vehicle; owner forced to use outside door handle. Failure occurred early in vehicle life.
When: Narrative #14 documents failure at 2,000 miles
Symptoms owners cite: Inner door lock non-functional; Able to unlock from outside handle
Repairs/costs cited: Narrative #14 documents vehicle not diagnosed or repaired; manufacturer not notified
Total Electrical Failure (Undiagnosed)
Vehicle exhibits complete electrical failure preventing start. Dealership ruled out battery as cause but did not identify root failure mechanism.
When: Narrative #19 documents vehicle at dealership
Symptoms owners cite: Vehicle will not start; No electrical response
Repairs/costs cited: Dealership confirmed not a battery issue but repair/diagnosis incomplete at time of complaint
Synthesized from 21 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 5 most recent
Driving on the expressway at 70 MPH, the car starts sputtering then decelerated, it would not accelerate even while pressing the gas pedal. I pulled off to the emergency lane and the lights started flickering, warning lights appeared "check hill start assist system", "check emission system", "check power steering system", "check brake hold system", "check brake system", and "check parking brake…
I tried to start my car and it made a weird ticking noise as if the battery was dead. All the lights on the dashboard turned on and the car kept telling me I needed to turn off some sort of brake system in order for the car to work. I turned the car off and tried again, this time it would not start but automatically turned on to accessory mode. I had to call my car insurance to give the car a…
The defect with stalling after auto start continues even after Acura applied a software update. They refuse to complete second part of recall including starter replacement and valve adjustment as indicated on their attached letter. THIS NEGLIGENCE IS A HIGH RISK OF PERSONAL INJURY TO MY FAMILY AND I.
From a stopped position, moving forward my vehicle hesitated and decreased in power and the gas pedal did not help moving the vehicle forward. This happened in the middle of the intersection for several seconds 10-15 before the vehicle started moving forward again. From a moving position, I was going around a right-hand slight curve going approximately 45-50 mhp and the vehicle failed to keep…
Had electrical trouble with your 2016 Acura TLX?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2016 Acura TLX?
It's a documented issue but not catastrophic. 21 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Across the 9 complaints that reported odometer mileage, most electrical failures cluster between 33,875 and 57,000 miles, with the median around 39,000. A quarter of owners report trouble before 33,875; a quarter make it past 57,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2016/Acura/TLX.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.