My 2000 SSEi died instantly and without warning, no sputtering or other signs of impending trouble. Everything I could see was completely blacked-out. The only sign of life was the orange "D" (for Drive) indicator on the dash. It was very dark but I managed to steer to the side of the road and come to a stop. After being stopped for a few seconds I turned the ignition key and the car immediately started, all accessories came back on (headlights / radio / HVAC / dash etc..). Definitely seems electrical or electronic. I proceeded to drive the car and it seemed fine. 300 miles later and still no problems. I checked the codes and nothing was found. The battery is less than 4 years old, connections are very tight. I ran the car and tried moving the cables and wiring but the car didn't skip a beat. Any suggestions are greatly appreciated.

Worth a shot.

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Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

Thank you Archon, I will definitely give that a shot. It's a little scary driving this car at night considering I have no headlights when this happens!

Check the battery cable where it connects to the floorboard.

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2006 Chevy Monte Carlo SS

I know the feeling. Driving at highway speeds and everything shuts off! Toyota's should be so lucky.
I had that problem for months until the loose fuse was discovered.
Haven't had a problem since.

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2000 SSEi - SilverBullet - 78,000 kms, 4" "straight shot" custom headlight ram air inlet, TOGs, 1.9's, Lsd, 2.9-3.4"MPS 10-15 psi, Ported GenV, EGR eliminated, OR pushrods, oil volume kit, trani cooler & shift kit, Titanium retainers, 90 lb springs, 160 Stat, 42# injectors, Fuel pump voltage increase, Wideband O2, 3" to dual 2 1/2" Magnaflows, Snow Meth/water injection, after SC temp gauge, 255/50WR17, timing commander set 15-18*@WOT, 2 speed Fan over-ride, disabled DRL, Solid motor mount, Meziere Electric water pump, adjustable fuel pressure regulator, Drilled & slotted rotors/ceramics, GXP sway bars and STB, Upgraded and rebuilt transmission with ZZP 2500 rpm stall TC, Pioneer Bluetooth stereo with sub and 800 W amps, PB 13.5 quarter, (April 2014 car of the month)