Question about 2000 Saturn SL

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I have a 2000 Saturn L series V6 engine that keeps displaying the "reduced power" light on the dash. When this happens the car is suddenly just barely running and goes about 10 MPH max. However, if I pull the car off the road and wait 10-20 minutes and start it again it sometimes it goes away. But you never know when it is going to switch into this mode and it can happen at very bad times like while making a turn and almost cause an accident. Any ideas what causes this and how to fix?.

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Posted on Jan 02, 2017

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SOURCE: 2002 Saturn Vue V6 Loss of Power

Yup. The throttle body connectors have a history of failing on these cars. Replace the throttle body and the wire connectors that go to it, and you're back in business. Not terribly difficult and you can get the parts from any dealer. Saturn actually has a bulletin out on this problem but they won't cover it unless you're under warranty - no recall for this.

Posted on Mar 05, 2009

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SOURCE: 03 saturn L300, reduced power engine light came on

You are not the only one. Ive met a good many of Saturn owners (most were 2001 L300 drivers) but they were plagued with the problem you have and practically identical codes. The following remedies have been known to work:

1. Replacement Battery Cable
2.Replacement ECU Wiring Harness
3. Replacement of ECU

Posted on Mar 31, 2009

  • 55 Answers

SOURCE: 1995 Saturn wont idle right

I would take the vehicle to a local auto parts store that will put there scan tool on the car to find out what code was stored. Maybe they will have some possible parts that could be the problem.

Hope this helps some

Posted on May 15, 2009

  • 1 Answer

SOURCE: 96 Saturn Sc1 does not start after you turn it off

I had that problem with my 87 van.The gage they used showed it had enough amps but she still wouldn't start. I had to get a better battery. Mine had enough to run it till I stopped one time. Then I had to wait for awhile before it would start again. I have not had any trouble since I got the new battery. No one ever found out why the other battery tested ok or wouldn't start after one trip anywhere.

Posted on Jun 20, 2009

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SOURCE: reduced power for real!!!!

I had the same thing happen to me yesterday. Sitting at a light, went to accellerate and would barely move. The same lights came on for me too. I had it towed to the Saturn dealership and they tell me it's the computer control for the transmission. It's going to cost me in excess of $950.00 to replace. I did a little research and apparently this is an ogoing problem with 2003 Vues.

Posted on Sep 16, 2009

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I have a 2000 Saturn LW2 v6/3.0L and I have replaced my fuel pump as per the recomendation of a Mechanic friend of mine. He inspected my car and explained why it seemed to be the Fuel Pump what the pr

i'll just put some things out there , loose or wiring poblems in starter circuit,ignition switch , starter faulty,battery ?? if auto trans nutral safety ,if standard netural safety on clutch pedal.?
just trying to help good luck hope something works.

Sep 30, 2012 | 2000 Saturn LW

1 Answer

I have a 2003 Saturn L300 6 cylinder. Last week the reduced power light came on and stays on every time the car is driven. The car performs the same but the heater is not working normally. Takes longer to...

This has nothing to do with the heat on the vehicle .
Reduced Power
The reduced power telltale is turned ON by the cluster when it receives a command from the body control module (BCM). The engine control module (ECM) (L81) engine sends a message to the BCM over the CAN serial data link.
The reduced power telltale is illuminated when the ECM is limiting engine torque in a low traction situation. This telltale is used only for the V6 (L81) engine application.
The reduced power telltale is turned ON by the cluster for 2-3 seconds, when the ignition is turned to RUN, for a visual system check.

Taking the vehicle to a qualified repair shop an having it diagnosed would be your best . Unless you have a factory tech 2 scan tool to read BCM DTC'S - diagnostic trouble code's an have factory diagnostic repair info.
Reduced Engine Power Mode
When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.
• Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
• Throttle default mode--The ECM will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The ECM will perform the following actions:
• Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned off.
• Ignore the accelerator pedal input.
• Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.

Jan 21, 2018 | 2003 Saturn L-Series

2 Answers

Saturn vue thats keeps going to reduced engine power and that check engine light comes on when that happens. turn the car off and then turn it back on it goes back to normal for a while. any ideas of the...

Transmissions are tied into the function of the newer Saturns which can give you drivablity problems. You should take it too an authorized dealer to have it diagnosed just for that reason alone.

Oct 27, 2009 | 2003 Saturn VUE

1 Answer

Saturn V6 2000 model with jerking. I can drive about 4 blocks and then the light pops on and says reduced power and I can go no more than 20 miles per hour if I am going a good speed. The steering wheel...

It is going into limp mode. There is a serious problem somewhere. Could be with the engine or transmission. You need to have the ECU scanned to see why it is going into Limp Mode. I suggest you seek professional help.

Oct 10, 2009 | 2000 Saturn SL

2 Answers

Reduced power for real!!!!

There is a fault somewhere on the vehicle which has triggered the engine management system to limit engine power to minimize damage.If you have breakdown cover and live in the Uk then call them.You need a computerised diagnosis of the engine.If you live locally then mail me at and I will assist you further.

Jun 14, 2009 | 2003 Saturn VUE

2 Answers

Reduced power light came on

reduced power messge is not caused by oil pressure. i assume this a 3.0L v6. this engine has a electronic throttle body which is a electric motor that operates the throttle plate that takes the place of a throttle cable. in cold weather the pcv (positive crankcase venelation) system accumulates moisture that will form on the throttle plate, in cold weather the water freezes and causes throttle plate to stick. when the ecm detects any malfunction whithin the throttle control circuit it is put in to reduced power mode that limits throttle position. usually resets after ign. is cycled. there is a service bullitin to re-position pcv hose behind throttle plate to reduce moisture bulid-up on throttle plate. your saturn dealer can perform this service.

Mar 21, 2009 | 2003 Saturn VUE

3 Answers

2002 Saturn Vue V6 Loss of Power

Yup. The throttle body connectors have a history of failing on these cars. Replace the throttle body and the wire connectors that go to it, and you're back in business. Not terribly difficult and you can get the parts from any dealer. Saturn actually has a bulletin out on this problem but they won't cover it unless you're under warranty - no recall for this.

Jan 03, 2009 | 2002 Saturn VUE

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