Component

EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

583 NHTSA complaints about exterior lighting:turn signal:flasher unit issues across 33 makes and 155 models.

Data updated August 2026. Counts render from the NHTSA Office of Defects Investigation standardized component field; severity flags cross-reference NHTSA ODI complaint flags for owner-reported crash, fire, and injury markers. This page is for informational purposes and does not replace NHTSA recall notices or a vehicle-specific inspection. Methodology · Corrections.

NHTSA ODI component intake brief

ODI category EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

583 filings · 155 models · 33 makes · vintage August 2026

  • FILINGS MODERATE 583 ODI rows
  • MODELS 155 nameplates citing this part
  • MAKES 33 manufacturers in corpus
  • CRASH 2.2% 13 crash-flagged
  • RANK #194 of 696 categories
  • SEV FATAL 20 deaths · 3 injuries
EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT (this)EXTERIOR LIGHTING:TURN SIGNA…583SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHTSERVICE BRAKES, AIR:ANTILOCK…587SUSPENSION:FRONT:SHOCK ABSORBERSUSPENSION:FRONT:SHOCK ABSOR…577SERVICE BRAKES, AIR:DISC:ROTORSERVICE BRAKES, AIR:DISC:ROT…590
ODI filing volume neighbourhood: EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT vs nearest complaint-total peers

EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT sits MODERATE on ODI intake volume (#194 of 696 standardized categories) with a FATAL severity stamp (20 reported fatalities across 155 models). Open Chevrolet Malibu (category leader) →

EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT model-concentration reading

The standout signal for exterior lighting:turn signal:flasher unit is model concentration: Chevrolet Malibu accounts for 60 filings (10.3% of this category) out of 583 total.

Moderate-volume categories still show a fingerprint in the model table below, cross-check each nameplate's recall and investigation history before inferring a defect pattern.

Next step: compare Chevrolet Malibu against SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT on filing totals before treating exterior lighting:turn signal:flasher unit volume as a purchase signal.

583
Complaints
155
Models Affected
13
Crashes
5
Fires
20
Deaths

Most Affected Vehicles

# Vehicle Complaints
1 Chevrolet Malibu
60
2 Pontiac Grand AM
54
3 Oldsmobile Alero
32
4 Chevrolet Blazer
18
5 Chevrolet Impala
13
6 Volvo V70
10
7 Dodge Neon
10
8 Pontiac Grand Prix
9
9 Ford Explorer
9
10 Chevrolet Monte Carlo
9
11 Cadillac Deville
9
12 Volkswagen Passat
8
13 Volkswagen Jetta
8
14 Toyota Camry
8
15 KIA Sephia
8
16 Hyundai Sonata
7
17 Ford Ranger
7
18 Ford F-150
7
19 Ford Contour
7
20 Chevrolet Corvette
7
21 Pontiac Sunfire
6
22 Plymouth Neon
6
23 Honda Accord
6
24 Ford Expedition
6
25 Chevrolet Corsica
6
26 Chevrolet Cavalier
6
27 Saturn ION
5
28 Oldsmobile Intrigue
5
29 GMC Envoy
5
30 Ford Windstar
5

Recent Complaints

2005 Toyota Prius

The contact owns a 2005 Toyota Prius. The contact stated that while driving at an undisclosed speed, the left turn signal was activated, however, the left turn signal failed to function as intended.

2025 Freightliner Cascadia

The contact owns a 2025 Freightliner Cascadia. The contact stated that while driving at an undisclosed speed, the turn indicator on the instrument panel became inoperable. The contact stated that whil

2004 Cadillac Escalade

When this device is used to replace the Flasher Module (my had failed so I ordered this replacement from Amazon) I found that the brake light circuit to any trailer connected tot he vehicle would no l

2023 Chevrolet Traverse

The contact's wife owns a 2023 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the right turn signal light illuminated and blinked intermittently. The contact's wife

2016 Hyundai Tucson

TL* THE CONTACT OWNS A 2016 HYUNDAI TUCSON. THE CONTACT STATED THAT THE REAR DRIVER SIDE TAIL LIGHT SIGNAL FAILED TO REMAIN ILLUMINATED WHILE COMPLETING A LEFT TURN. THE CONTACT HAD TO MANUALLY ADJUST

2012 Smart Fortwo

TL* THE CONTACT OWNS A 2012 SMART FORTWO. WHILE DRIVING VARIOUS SPEEDS, THE FRONT TURN SIGNAL INDICATORS FAILED TO ILLUMINATE. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO LOKEY MERC

2002 Pontiac Grand AM

TL* THE CONTACT OWNS A 2002 PONTIAC GRAND AM. WHILE DRIVING APPROXIMATELY 30 TO 35 MPH AND TURNING RIGHT OR LEFT, THE TURN SIGNAL LIGHTS FAILED NUMEROUS TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRE

2009 Chevrolet Impala

TL* THE CONTACT OWNS A 2009 CHEVROLET IMPALA. WHENEVER THE CONTACT ATTEMPTED TO OPEN THE DRIVER SIDE DOOR, THE METAL LATCH PINCHED HER FINGER. THE REAR PASSENGER REAR WINDOW SQUEALED WHENEVER THE CONT

2003 Pontiac Grand AM

TL* THE CONTACT OWNS A 2003 PONTIAC GRAND AM. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THERE WAS AN ABNORMAL NOISE COMING FROM THE STEERING COLUMN. THE CONTACT MENTIONED THAT WHEN THE

2012 Chrysler Town AND Country

TL* THE CONTACT OWNS A 2012 CHRYSLER TOWN AND COUNTRY. THE CONTACT STATED THAT THE TURN SIGNAL INDICATORS ON THE SIDE MIRRORS FAILED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN DIAGNOSED T

2002 Chevrolet Malibu

TL* THE CONTACT OWNS A 2002 CHEVROLET MALIBU. THE CONTACT STATED THAT THE TURN SIGNAL AND HAZARD SWITCH MALFUNCTIONED AND COULD NOT BE ACTIVATED. THE FAILURE RECURRED INTERMITTENTLY. THE VEHICLE WAS

2000 Chevrolet Corvette

TL* THE CONTACT OWNS A 2000 CHEVROLET CORVETTE. THE CONTACT STATED UNLESS THE TURN SIGNALS ARE BEING USED, IT IS IMPOSSIBLE FOR AN OPERATOR TO KNOW WHEN THEY ARE OPERABLE. THE INTERMITTENT FAILURE OF

2008 Hyundai Sonata

2008 HYUNDAI SONATA. CONSUMER STATES DISCONTENT WITH DENIAL OF A ONLINE COUPON, UNRESOLVED THUMPING, VIBRATION THAT OCCURS WHEN THE VEHICLE IS STARTED. IN ADDITION THE TURN SIGNAL FLASHER/CLICKER IS

2004 Hyundai Tiburon

TL*THE CONTACT OWNS A 2004 HYUNDAI TIBURON. WHILE DRIVING 50 MPH, THE CONTACT ACTIVATED THE DRIVER'S SIDE TURN SIGNAL. THE LIGHT REMAINED SOLID AND DID NOT FLASH. WHEN THE CONTACT ARRIVED TO HIS DE

2000 Pontiac Grand AM

SIGNAL INDICATOR KEEPS CLICKING AFTER CANCELING SIGNAL. *TR

2004 Chevrolet Impala

NO PRIOR EVENT. TURN SIGNAL FLASHER CEASED TO FUNCTION FULL TIME. IT HAS BEEN INTERMITTENT FOR SEVERAL DAYS. HAZARD LIGHTS NOR TURN SIGNALS BLINK. BULBS COME ON AND STAY ON. NO FLASHER. *TR

2004 Chevrolet Trailblazer EXT

I WAS DRIVING MY TRAILBLAZER TO MINNEAPOLIS AND THE TURN SIGNALS WERE WORKING FINE, I STOP AND WHEN I STARTED DRIVING AGAIN I WENT TO USE MY LEFT TURN SIGNAL AND THE FLASHERS WENT ON INSTEAD. IT CONTI

2004 Chevrolet Impala

THE TURN SIGNALS AND HAZARD LIGHTS NO LONGER BLINK WHEN TURNED ON. THE BULBS LIGHT UP BUT DO NOT BLINK ON AND OFF. *TR

2003 Oldsmobile Alero

MY LOWER INTAKE MANIFOLD IS LEAKING JUST AS IS POPULAR ON THESE TYPES OF ENGINES. ALSO MY TURN SIGNAL IS WORKING OFF AND ON. I HAVE SENT LETTERS TO GM WITH NO RESPONSE OR SUCCESS. *TR

1999 Mercury Cougar

I AM THE ORIGINAL OWNER OF A 1999 MERCURY COUGAR AUTOMATIC V6. I HAVE NEVER BEEN IN AN ACCIDENT WITH THE VEHICLE, BUT CONTINUE TO HAVE MECHANICAL PROBLEMS. LIKE OTHER 1999 ' 2000 MERCURY COUGAR OWNE

Verify with NHTSA · consumer-reported counts are not verified defect findings.