This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
full bulletin at NHTSA ↗2005 Saturn Relay electrical problems
severe 16 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
16
Recalls
0
Avg fix
$850
1fire
When does it fail?
Of the 16 electrical complaints filed for the 2005 Saturn Relay, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 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
No new NHTSA electrical complaint has been filed on this vehicle in over 20 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
full bulletin at NHTSA ↗Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
full bulletin at NHTSA ↗This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
full bulletin at NHTSA ↗The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners describe a constellation of electrical gremlins that defy easy repair. The most serious: loose wiring connections (particularly on the passenger-side fuel pump harness or under the glove box) cause intermittent no-start conditions or sudden loss of power while driving at highway speeds. One owner had to physically wiggle the wires repeatedly to restore function; another lost all electrical power on the road multiple times. A few owners report ignition switch failures leading to stalling and steering wheel seizure.
Lighting issues crop up constantly. Headlights, dash lights, and interior lights flicker erratically during night driving or acceleration—a problem the Saturn dealership acknowledged as a known characteristic of the Relay and similar L Series models, yet refused to address. Turn signals interact unpredictably with headlights on one vehicle. The radio intermittently loses sound without warning, disabling OnStar and rear parking chimes—safety features owners can't rely on.
Power sliding doors malfunction repeatedly: constant false chiming, failure to close despite multiple motor and sensor replacements, and unexpected opening while driving. ABS lights come on sporadically even after brake service. One vehicle experienced an engine compartment fire in the ceiling component area while parked; GM rejected the warranty claim citing vehicle age.
Dealers consistently tell owners these issues either cannot be duplicated, are characteristics of the vehicle, or require Saturn corporate assistance—and repairs often fail to stick. Multiple owners describe dangerous scenarios (nearly hit by an 18-wheeler due to flickering headlights, sudden power loss at highway speed) and express fear about fire risk.
Failure modes owners describe
No-start / Stalling / Loss of Electrical Power While Driving
Loose or intermittent connections on wiring harness (particularly passenger-side wires under glove box / fuel pump connector harness) cause intermittent loss of power. Engine may not start at all, stall briefly after starting, or shut off suddenly at highway speeds.
When: Varies; some owners report 75,000–250,000 miles; narrative #1 earliest issue right after purchase
Symptoms owners cite: Vehicle will not start; wiggling wires temporarily restores function; Engine stalls while driving; Complete loss of electrical power while driving (feels like running out of gas); Vehicle restarts briefly then stalls immediately; Steering wheel seizes when engine stalls
Codes mentioned: Ignition switch failure suspected, Fuel pump connector/harness intermittent connection
Repairs/costs cited: Owners report fuel relay replacement, fuel pump connector harness rewired/replaced, ignition switch replacement; some repairs unsuccessful or failures recurred
Recalls/TSBs owners mention: GM stated one owner's fire (narrative #5) was not their problem due to vehicle age; one owner (#10) noted manufacturer stated no recalls apply
Headlight / Dash Light / Interior Light Flickering or Dimming
Lights dim and brighten erratically at night, especially during acceleration or cruise control use. Dealership acknowledges it as a characteristic of the Relay and L Series but takes no action.
When: Intermittent; occurs during night driving and acceleration
Symptoms owners cite: Headlights, dashboard lights, interior lights flicker dim/bright/dim/bright; Lights dim and fade erratically; Pattern particularly pronounced during acceleration or cruise control; Severity makes lights resemble unintentional flashing to other drivers
Repairs/costs cited: One owner (#15) reports 5 repair attempts without resolution
Recalls/TSBs owners mention: Dealership told owners this is a known characteristic; no repairs attempted despite multiple complaints and requests
Radio / Audio System Muting or No Sound
Radio, CD player, and related systems lose sound intermittently. Disables OnStar audio function and rear parking sensor chimes, creating a safety issue. Problem resolves if vehicle is shut off and door opened for one minute.
When: Intermittent; not reproducible on demand
Symptoms owners cite: No sound from radio or CD player; OnStar function disabled when sound is absent; Rear parking sensor chimes do not sound; Sound returns after shutting vehicle off and waiting at least one minute with door open
Repairs/costs cited: Not repaired; owner identifies problem every three months at oil changes but dealer will not investigate due to inability to duplicate
Recalls/TSBs owners mention: Dealer refuses to repair because problem cannot be duplicated on demand
ABS Warning Light / Brake System Electrical Issues
ABS warning light comes on intermittently even after brake service. Owner suspects electrical connections issue based on erratic behavior of other systems.
When: After brake replacement; intermittent
Symptoms owners cite: ABS warning light appears intermittently; Light persists even after brakes replaced; Light may respond to door opening/closing but inconsistently
Codes mentioned: ABS warning light
Repairs/costs cited: Brakes replaced; problem persists
Turn Signal / Headlight Interaction Problem
Driver-side turn signal will not function when headlights are on; owner must turn headlights off to use turn signal.
When: Night driving
Symptoms owners cite: Turn signal on driver's side does not work when headlights are on; Turn signal functions only after headlights are turned off
Power Sliding Door Malfunction (Chiming, Failed Closure, Unwanted Opening)
Sliding door system produces constant chiming (as if doors are open when they are not), doors fail to close properly despite multiple repair attempts, and doors open unexpectedly while driving. Repairs have included motor and sensor replacements with recurring failures.
When: Intermittent
Symptoms owners cite: Continuous chiming sound even when sliding doors are closed; Door opens on its own while driving; Power sliding doors do not close properly; Problem recurs after motor replacement; Problem recurs after sensor replacement
Repairs/costs cited: Sliding door motors replaced; sensors replaced; problem recurred both times
Heater Intermittently Inoperative
Heater fails to function intermittently despite multiple repair attempts.
When: Intermittent
Symptoms owners cite: Heater inoperative at times
Repairs/costs cited: 5 repair attempts without resolution
Fuel Gauge Erratic
Fuel gauge displays erratically when fuel level is below quarter tank.
When: When fuel below quarter tank
Symptoms owners cite: Fuel gauge reading erratic below one-quarter tank
Engine Compartment Fire (Ceiling Component)
Electrical fire originating from the ceiling component housing sliding door, OnStar, and garage door opener buttons. Vehicle was parked and not running when fire started, one hour after last drive. Fire burned through roof, visor, and driver-side seat.
When: Parked in garage; one hour after last drive
Symptoms owners cite: Electrical fire in ceiling component area; Fire burned hole in roof; Fire damaged driver-side visor; Fire damaged driver-side seat and car seat behind driver door
Recalls/TSBs owners mention: GM determined fire was not their responsibility due to vehicle age (10 years old at time of fire) and claimed no other cases were on file
Synthesized from 16 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
Headlights flicker even after 5 repair attempts. Heater intermittently inoperative after 5 repair attempts. Power sliding doors do not close properly after 4 repair attempts. Difficult starting after 3 repair attempts. Fuel gauge erratic below quarter tank. *jb
ABS warning light appears intermittently even after brakes were replaced. Seems to be electrical issue as opening the door doesn't always turn on light or turn off radio. Drained battery. Now I have to pull fuse. Steering wheel radio controls have never worked properly often performing opposite functions. *tr
Saturn relay 2005: after turning the car on, no sound comes from the radio, or cd. The no sound disables the on-star function and rear parking sensor. Thus I can not call on star or hear the chimes from the rear parking sensor. This issue is not a repeatable event. I have not found a way to duplicate the event. I have determined that if I shut off the car and open the door and wait at least…
We purchased a Saturn relay from Saturn of charleston huntington ,sept 05 , we were told it had a previous owner but they had brought it back because they didn't like the color , at Saturn you have 30 days or 1500 miles to do this . It had 665 miles on it . Almost like brand new right? Well the first week I had it had to go back in to have a part serviced in the dvd player .now I have had it 4…
Had electrical trouble with your 2005 Saturn Relay?
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 2005 Saturn Relay?
It's a meaningful issue. 16 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Across the 14 complaints that reported odometer mileage, most electrical failures cluster between 3,000 and 110,000 miles, with the median around 91,652. A quarter of owners report trouble before 3,000; a quarter make it past 110,000. 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/2005/Saturn/Relay.
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.