2003 Infiniti G35 Electrical System Problems
Owners have filed 220 complaints with NHTSA about electrical system problems on the 2003 Infiniti G35, 41% of all complaints for this model year. Half of the reports with a mileage happened before 90,000 miles. The words owners use most often: “circuit board” (21% of reports).
- 220electrical system complaints
- 90,000median miles at failure
- 3mention a crash
- 0mention an injury
- 0related recalls
- $1,450typical repair cost reported by owners
- 29%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Circuit board: mentioned in 46 of 220 complaints (21%)
- Climate control: mentioned in 23 of 220 complaints (10%)
- Audio finisher: mentioned in 22 of 220 complaints (10%)
- Full blast: mentioned in 17 of 220 complaints (8%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical electrical system repair on the 2003 Infiniti G35 at $1,450, and half of them between $1,250 and $2,050.
Based on 21 NHTSA complaints about this problem alone that state a repair bill or quote (2008–2015), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do electrical system problems happen?
Based on 182 complaints that reported the odometer reading.
How serious are the reports?
Of 220 complaints, 3 mention a crash, 3 a fire.
Infiniti G35 electrical system complaints by model year
When owners reported it
Related recalls (0)
No safety recall lists electrical system for the 2003 Infiniti G35. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The ignition switch will not return to selection 3 after cranking.
Complete center console not working. Stuck on auto a/c with no way to defrost windshield and it was raining. No modes work, no cd, no radio, no heat, no defrost- front or rear. I have already had this happen before, replaced motherboard and it cost me 1200.00 and that was in 2011. Now it has…
Been having problems lately with the engine light coming on and the slip and vdc light also
Frequently asked questions
Do all 2003 Infiniti G35s have electrical system problems?
No. NHTSA has 220 owner complaints about electrical system for the 2003 Infiniti G35 (41% of the 533 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2003 Infiniti G35 electrical system?
No recall currently lists electrical system for this vehicle.
At what mileage do electrical system problems start?
The median reported mileage is 90,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix electrical system problems on the 2003 Infiniti G35?
Owners report a typical cost of $1,450 (half paid between $1,250 and $2,050), from 21 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about electrical system problems on the 2003 Infiniti G35?
The most frequent phrase is “circuit board”, in 46 of 220 complaints, followed by “climate control” (23).
Other 2003 Infiniti G35 problems
See all 2003 Infiniti G35 problems or electrical system problems across all G35 years.