Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ELECTRICAL SYSTEM
TSB-08-15-106/01/200910029204Ford/mercury: vehicles used in certain commercial applications such as taxi's and security services where extended low speed run time and extended idling may exhibit a red triangle light and codes indicating a transaxle overtemp. this condi06/26/2009
ELECTRICAL SYSTEM - BATTERY
TSB-09-15-312/01/200910033035Ford/mercury: some vehicles may set diagnostic trouble codes (dtcs) p0a81 (battery pack cooling fan 1 control circuit) and/or p0a96 (battery pack cooling fan 2 control circuit) in the traction battery control module (tbcm). these codes by06/25/2010

Consumer Complaints


Fail datemilesoccurencesPurchase date
ELECTRICAL SYSTEM
11/11/2012732781
 I was traveling west at about 70 mph in the left lane on i-66 out of washington, dc with four people in the car. suddenly, the engine died and we were left with only the electric motor on the hybrid and a dash warning of a red triangle and the statement stop safely soon. the car quickly lost power to about 30 mph and we struggled to get across the four lanes to the shoulder. the electronics in the car still operated (radio, dash lights, etc.), but the gas engine stalled. once on the shoulder, we stopped. the ford owner's manual told us to turn the car off and try to re-start. we did this and the car re-started. we started to drive, but the car did the same thing after about 5 minutes. the car did the same thing on about 5 different occasions until we could get to an exit that had businesses. the ford dealer in this area (away from my home) states that the electronic cooling pump needs to be replaced. although i understand that parts fail, my complaint is that ford should not tell owners to re-start the car and try to proceed on. it is dangerous when it continues to fail and you don't know where the next failure might occur (on a bridge, in a construction zone, on a busy, fast interstate). moreover, having reviewed complaints on this site and elsewhere on the internet about ford hybrids, i know that many others have experience this situation where the car engine stalls at highway speeds due to various problems (e.g., the electronic cooling pump, bad sensors, or a corrupted pcm). *tr
11/11/201273278
 I was traveling west at about 70 mph in the left lane on i-66 out of washington, dc with four people in the car. suddenly, the engine died and we were left with only the electric motor on the hybrid and a dash warning of a red triangle and the statement stop safely soon. the car quickly lost power to about 30 mph and we struggled to get across the four lanes to the shoulder. the electronics in the car still operated (radio, dash lights, etc.), but the gas engine stalled. once on the shoulder, we stopped. the ford owner's manual told us to turn the car off and try to re-start. we did this and the car re-started. we started to drive, but the car did the same thing after about 5 minutes. the car did the same thing on about 5 different occasions until we could get to an exit that had businesses. the ford dealer in this area (away from my home) states that the electronic cooling pump needs to be replaced. although i understand that parts fail, my complaint is that ford should not tell owners to re-start the car and try to proceed on. it is dangerous when it continues to fail and you don't know where the next failure might occur (on a bridge, in a construction zone, on a busy, fast interstate). moreover, having reviewed complaints on this site and elsewhere on the internet about ford hybrids, i know that many others have experience this situation where the car engine stalls at highway speeds due to various problems (e.g., the electronic cooling pump, bad sensors, or a corrupted pcm).
09/29/2012667001
 This would be the third total engine power shut-down at freeway speeds with no limp-away option after exiting the freeway, realized that we were in an unsafe neighborhood [so not a good option to stop and call for tow], tried mapping surface street route to safer area, but nav system showed the only surface street route to take us back home put us on a steep, narrow winding section of laurel canyon - no safe exit if another shut-down. also realized we couldn't use riverside thru griffith park which is locked after dark .. so zig-zagged north and west about 5 miles below 40 mph keeping to lighted streets hoping for safe place or unremembered route. engine remained stable once more, drove towards i-5 again on los feliz (past the griffin bar ⿿ and a topless club) .. remembered los feliz ahead had a long, separate entrance ramp to n/b i-5 . the drivetrain accelerated smoothly to ~50 mph, then warnings / drive train died again at the bottom of the on-ramp .. hazards
09/29/2012667001
 This would be the second un-warned total loss of power on a freeway. having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. but being stuck in 10pm darkness on a narrow shoulder was too dangerous to consider remaining there. once stopped, i shifted the transmission to park, cycled ignition off then to start ? engine restarted, dash warning lamps came on- then cycled off normally, engine ran smoothly. note: the only way to attempt to restart the hybrid drivetrain is to shift the transmission into park .. it doesn't work in neutral .. and there was no way i was going to try to put the trans in park in 72-75 mph freeway traffic in 10pm darkness. accelerated moderately into merging lane, entering gap in n/b traffic to re-enter i-5 traffic ? hoping to get past sr-2 to more-familiar exit ? within 2 minutes, and at speed ~ 55 mph ? drive train died again (same warning tone and light...and same too little too late stop now warning text). again had to hunt for a wide-enough section of outside shoulder to stop and take stock of dangerous situation. shut off engine, moved trans into park tried restart - again, engine started and settled to normal operation - no warning lights remained on. able to re-enter traffic and transition off i-5 fwy .. but only escape was to another freeway (sr-2). kept speed below 45mph on that freeway until able to exit freeway. this was the second un-warned total loss of power on a freeway. *tr
09/29/2012667001
 This would be the third total engine power shut-down at freeway speeds with no limp-away option after exiting the freeway, realized that we were in an unsafe neighborhood [so not a good option to stop and call for tow], tried mapping surface street route to safer area, but nav system showed the only surface street route to take us back home put us on a steep, narrow winding section of laurel canyon - no safe exit if another shut-down. also realized we couldn't use riverside thru griffith park which is locked after dark .. so zig-zagged north and west about 5 miles below 40 mph keeping to lighted streets hoping for safe place or unremembered route. engine remained stable once more, drove towards i-5 again on los feliz (past the griffin bar ⿿ and a topless club) .. remembered los feliz ahead had a long, separate entrance ramp to n/b i-5 . the drivetrain accelerated smoothly to ~50 mph, then warnings / drive train died again at the bottom of the on-ramp .. hazards
09/29/2012667001
 This would be the second un-warned total loss of power on a freeway. having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. but being stuck in 10pm darkness on a narrow shoulder was too dangerous to consider remaining there. once stopped, i shifted the transmission to park, cycled ignition off then to start ? engine restarted, dash warning lamps came on- then cycled off normally, engine ran smoothly. note: the only way to attempt to restart the hybrid drivetrain is to shift the transmission into park .. it doesn't work in neutral .. and there was no way i was going to try to put the trans in park in 72-75 mph freeway traffic in 10pm darkness. accelerated moderately into merging lane, entering gap in n/b traffic to re-enter i-5 traffic ? hoping to get past sr-2 to more-familiar exit ? within 2 minutes, and at speed ~ 55 mph ? drive train died again (same warning tone and light...and same too little too late stop now warning text). again had to hunt for a wide-enough section of outside shoulder to stop and take stock of dangerous situation. shut off engine, moved trans into park tried restart - again, engine started and settled to normal operation - no warning lights remained on. able to re-enter traffic and transition off i-5 fwy .. but only escape was to another freeway (sr-2). kept speed below 45mph on that freeway until able to exit freeway. this was the second un-warned total loss of power on a freeway. *tr
09/29/2012667001
 This would be the third total engine power shut-down at freeway speeds with no limp-away option after exiting the freeway, realized that we were in an unsafe neighborhood [so not a good option to stop and call for tow], tried mapping surface street route to safer area, but nav system showed the only surface street route to take us back home put us on a steep, narrow winding section of laurel canyon - no safe exit if another shut-down. also realized we couldn't use riverside thru griffith park which is locked after dark .. so zig-zagged north and west about 5 miles below 40 mph keeping to lighted streets hoping for safe place or unremembered route. engine remained stable once more, drove towards i-5 again on los feliz (past the griffin bar ⿿ and a topless club) .. remembered los feliz ahead had a long, separate entrance ramp to n/b i-5 . the drivetrain accelerated smoothly to ~50 mph, then warnings / drive train died again at the bottom of the on-ramp .. hazards
09/29/2012667001
 This would be the second un-warned total loss of power on a freeway. having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. but being stuck in 10pm darkness on a narrow shoulder was too dangerous to consider remaining there. once stopped, i shifted the transmission to park, cycled ignition off then to start ? engine restarted, dash warning lamps came on- then cycled off normally, engine ran smoothly. note: the only way to attempt to restart the hybrid drivetrain is to shift the transmission into park .. it doesn't work in neutral .. and there was no way i was going to try to put the trans in park in 72-75 mph freeway traffic in 10pm darkness. accelerated moderately into merging lane, entering gap in n/b traffic to re-enter i-5 traffic ? hoping to get past sr-2 to more-familiar exit ? within 2 minutes, and at speed ~ 55 mph ? drive train died again (same warning tone and light...and same too little too late stop now warning text). again had to hunt for a wide-enough section of outside shoulder to stop and take stock of dangerous situation. shut off engine, moved trans into park tried restart - again, engine started and settled to normal operation - no warning lights remained on. able to re-enter traffic and transition off i-5 fwy .. but only escape was to another freeway (sr-2). kept speed below 45mph on that freeway until able to exit freeway. this was the second un-warned total loss of power on a freeway. *tr
09/29/201266700
 This would be the second un-warned total loss of power on a freeway. having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. but being stuck in 10pm darkness on a narrow shoulder was too dangerous to consider remaining there. once stopped, i shifted the transmission to park, cycled ignition off then to start
07/07/201177400
 The engine abruptly stopped while i was traveling 65 mph. the car was towed to a ford dealer who diagnosed the problem as the motor electronics cooling pump. the part was replaced but was not covered by the warranty. ford issued a technical service bulletin in november 2008 concerning this problem, so ford has been aware of this danger for years.
02/06/201165000
 Vehicle's gas engine shut off on the freeway at 65 mph without warning leaving only the electric motor to power it. the reduced the maximum speed to 25 mph. dealer said failure of the motor electronics cooling pump caused the loss of power.
06/06/201040211
 Second unwarned total shut-down of all power on roadway - this one just 17 days after repairs and reprogramming by ford dealership following first instance, which cut gas engine and electric motor power while traveling on los angeles freeway. this power shut-down occurred while trying to pull from parallel park spot onto busy blvd - lost all power 2 feet into traffic, able to roll back into curb before traffic reached me around semi-blind curve. after the first in-use failure on 5-17-10, i simultaneously reported the malfunction to ford customer relations (case# 1432331380), and presented the vehicle for repair to cerritos [the following quotes from text of service record]; tech performed `eec test, revealing fault-codes: b1239, p1a0c and p0562. the tech also found tsb (tech service bulletin) 07-25-12 with concern resolution & he contact[ed] ford technical service hotline with concern. the tech replaced the auxiliary airflow mode door actuator and reprogrammed the traction battery control module to latest calibration 8m64-10b687-ag. final eec test passed. i was also informed that the part number for the replacement `airflow mode door actuator' differed from original, so the component has apparently been re-designed - but neither my wife nor i have received warnings from ford that updates/repairs were recommended on either of our 2008 mariner hybrids. this originally smelled like a `silent recall' to me...but this doesn't even rate as a `recall', because the work performed did not prevent the second occurrence of the equivalent malfunction just 17 days later. this is a totally unacceptable failure mode for any consumer transportation vehicle, because it occurs without warning, and leaves the driver completely defenseless, and with severely-reduced response options.
05/17/201039380
 On-freeway gas engine/electric motor shut-down. driving in morning rush-hour traffic approximately 15 minutes after cold start in 60-degree weather, both the gasoline engine and the electric motor propulsion systems shut-down together without prior warning while the vehicle was in motion - stop safely now was the `too-little-too-late' info on the instrument panel. neither power mode would restart with trans in neutral (i refused to try cycling ignition key to off, and risk steering lock). fortunate to coast onto shoulder, where i had to move gear selector to park, turn ignition key full-off and then back to start, at which time normal operation resumed. total loss of both power sources while in-use on a freeway