NHTSA — Vehicle Speed Control: Cruise Control Problems


really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
11,333 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Mercury Grand Marquis engine problems

engine problem

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2003 Mercury Grand Marquis Owner Comments

problem #3

Nov 172004

Grand Marquis 8-cyl

  • Automatic transmission
  • 24,000 miles


: the contact stated while parked with the ignition on; the vehicle suddenly lurched forward without warning. The brakes were depressed and the ignition was turned off, which stopped the vehicle after it traveled 60 ft. This had occurred on numerous occasions. Also, while traveling 60 mph with the cruise control engaged, the vehicle sped uncontrollably to 80 mph. The brakes were depressed, but did not disengage the cruise control. Also, while traveling 40 mph, the vehicle accelerated suddenly, causing the contact to drive the vehicle into a ditch to avoid an accident. The contact sustained a bruise to the shoulder. The manufacturer was contacted, and provided no assistance since the vehicle was out of warranty. The vehicle was taken to a service dealer twice, where the cruise control was replaced, but the problem persisted.

- Flat Rock, MI, USA

problem #2

Feb 022005

Grand Marquis 8-cyl

  • Automatic transmission
  • 10,000 miles
The engine revved in full throttle when the gear shifter was shifted into drive from park; resulting in a rear end collision. This occurred while in stop and go traffic in the car wash line. The repair shop failed to determined what caused the failure, but the consumer feels due through their own research that it was caused by the electrical system/cruise control.

- Cranford, NJ, USA

problem #1

Sep 162003

Grand Marquis

  • miles
While driving under raining conditions cruise control was not working. Instrument lights panel was off, and windshield worked intermittently. Dealer replaced two computers in the electrical system, but problem still occurring.

- Concord, NC, USA

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